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    No právě... 33 by bylo OK, jenže je tam ještě -5, tak to máme 37, to
    je taky OK. Ale jestli to má dávat 30V/3A a na vstupu je 1 mF, tak
    na to bude muset bejt AC napájení vyšší.<br>
    <br>
    Otázka je, co se stane, když se tam dá jinej OZ s jinými dyn.
    parametry. Já bych spíš přidal omezení napájení OZ mezi 35-40 a
    nechal tam ty původní.<br>
    <br>
    PH<br>
    <br>
    <div class="moz-cite-prefix">Dne 28.01.2024 v 19:04 Jan Kuba
      napsal(a):<br>
    </div>
    <blockquote type="cite"
cite="mid:CAD8qwRPfDQMpt3+Zn5st9=_MovzJczr+GH-YM05F+OUiJ8v+0g@mail.gmail.com">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      Já mám 24V trafo a na kondu je naprázdno asi 33V. Zatím to pár let
      funguje. Asi by to tam chtělo místo 082 něco pinově
      kompatibilního, ale s větším Ucc..<br>
      <br>
      neděle 28. ledna 2024 Pavel Hudeček <<a
        href="mailto:edizon@seznam.cz" moz-do-not-send="true"
        class="moz-txt-link-freetext">edizon@seznam.cz</a>>
      napsal(a):<br>
      <blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
        <div> Jestli jde o ten 1005006266276774 tak tam schéma je, je to
          pátý obrázek.<br>
          Celkem klasika, jen teda napájení operáku bude asi poněkud na
          hraně:-)<br>
          <br>
          PH<br>
          <br>
          <div>Dne 28.01.2024 v 18:37 ladislav.krucinsky napsal(a):<br>
          </div>
          <blockquote type="cite">
            <div dir="auto">Zeptám se - dostal jste k tomu analogovému
              regulátoru i schéma? Pokud ano, mohl byste mi ho
              poskytnout? Na té stránce ho nějak nevidím - koukám jen
              přes mobil.</div>
            <div dir="auto"><br>
            </div>
            <div dir="auto"> Láďa 
              <div dir="auto"><br>
              </div>
              <div dir="auto">Odesláno z příliš chytrého mobilu.</div>
            </div>
            <div dir="auto"><br>
            </div>
            <div><br>
            </div>
            <div dir="auto" style="font-size:100%;color:#000000"
              align="left">
              <div>-------- Původní zpráva --------</div>
              <div>Od: Jan Kuba <a href="mailto:honza.kuba@gmail.com"
                  target="_blank" moz-do-not-send="true"><honza.kuba@gmail.com></a>
              </div>
              <div>Datum: 27.01.24 22:24 (GMT+01:00) </div>
              <div>Komu: HW-news <a href="mailto:hw-list@list.hw.cz"
                  target="_blank" moz-do-not-send="true"><hw-list@list.hw.cz></a>
              </div>
              <div>Předmět: Re: Laboratorní zdroj </div>
              <div><br>
              </div>
            </div>
            <div dir="ltr">Dneska jsem náhodou na Ali narazil na tu
              stavebnici, která je ve stejné podobě už několik let.
              <div><br>
              </div>
              <div><a
href="https://www.aliexpress.com/item/1005006266276774.html"
                  target="_blank" moz-do-not-send="true">https://www.aliexpress.com/<wbr>item/1005006266276774.html</a>?<br>
              </div>
              <div><br>
              </div>
              <div>Tohle opravdu funguje dobře, cena je také zajímavá.</div>
              <div> Ideální alternativa k  těm spínaným Čínám pro věci,
                které vyžadují precizní omezení proudu.</div>
              <div>Před pár lety jsem to s kolegou postavil ve dvou
                exemplářích  ( 2A max. ) a dodnes to maká bez problémů.</div>
              <div>Testy s LED OK, a ta energie 10M elytu na výstupu je
                mizivá.  Já tam mám jen 5M nějaký bipolární Vishay LOW
                ESR.</div>
              <div><br>
              </div>
              <div>Pokud by to někdo objednával, tak přihoďte z Ali
                ještě minimálně jeden Aripot, neboť ve stavebnici jsou
                jen 270ˇ potenciometry ... </div>
              <div><a
href="https://www.aliexpress.com/item/1005005881888365.html"
                  target="_blank" moz-do-not-send="true">https://www.aliexpress.com/<wbr>item/1005005881888365.html</a></div>
              <div>A určitě nějaký modul měření:</div>
              <div><a
href="https://www.aliexpress.com/item/1005004508767695.html"
                  target="_blank" moz-do-not-send="true">https://www.aliexpress.com/<wbr>item/1005004508767695.html</a><br>
              </div>
              <div><a
href="https://www.aliexpress.com/item/1005005139711982.html"
                  target="_blank" moz-do-not-send="true">https://www.aliexpress.com/<wbr>item/1005005139711982.html</a><br>
              </div>
              <div><a
href="https://www.aliexpress.com/item/1005004396903224.html"
                  target="_blank" moz-do-not-send="true">https://www.aliexpress.com/<wbr>item/1005004396903224.html</a><br>
              </div>
              <div><br>
              </div>
              <div>Já někde mám dvě trafa  a  tyhle: <a
href="https://www.mfcomm.co.uk/wp-content/uploads/2022/04/alcatel-1512-pl-2-rum-e211s-37842447-scaled.jpg"
                  target="_blank" moz-do-not-send="true">https://www.mfcomm.co.<wbr>uk/wp-content/uploads/2022/04/<wbr>alcatel-1512-pl-2-rum-e211s-<wbr>37842447-scaled.jpg</a>  </div>
              <div>docela pěkné krabičky od modemů, kdyby měl někdo chuť
                a čas si to postavit. V případě zájmu zdarma k dispozici
                ( osobně, nebo za poštovné pošlu ) </div>
              <div><br>
              </div>
              <div><br>
              </div>
              <div><br>
              </div>
              <div><br>
              </div>
              <div><br>
              </div>
              <div><br>
              </div>
              <div><br>
              </div>
            </div>
            <div><br>
              <table style="border-top:1px solid #d3d4de">
                <tbody>
                  <tr>
                    <td style="width:55px;padding-top:13px"><a
href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail"
                        target="_blank" moz-do-not-send="true"><img
                          style="width:46px;height:29px" alt=""
src="https://s-install.avcdn.net/ipm/preview/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif"
                          moz-do-not-send="true" width="46" height="29"></a></td>
                    <td
style="width:470px;padding-top:12px;color:#41424e;font-size:13px;font-family:Arial,Helvetica,sans-serif;line-height:18px">Neobsahuje
                      žádné viry.<a style="color:#4453ea"
href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail"
                        target="_blank" moz-do-not-send="true">www.avast.com</a></td>
                  </tr>
                </tbody>
              </table>
            </div>
            <br>
            <div class="gmail_quote">
              <div class="gmail_attr" dir="ltr">út 23. 1. 2024 v 16:26
                odesílatel Pavel Hudeček <<a
                  href="mailto:edizon@seznam.cz" target="_blank"
                  moz-do-not-send="true" class="moz-txt-link-freetext">edizon@seznam.cz</a>>
                napsal:<br>
              </div>
              <blockquote
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"
                class="gmail_quote">
                <div> No ten test s LEDkou málo kterej zdroj dá:-)<br>
                  Dnes už to možná bude lepší, ale tehdy to nedal žádnej
                  z testovaných. K když jsem přesně tohle tady před lety
                  nakous, tak všeobecný názor byl, že to není důležité a
                  proto je normální mít na výstupu C aspoň v řádu µF.<br>
                  <br>
                  Já teda nakonec stejně dosáh toho, že ten prototyp
                  projde testem, kdy je nastaveno 20 V, 20 mA a LEDka
                  opakovaně přežívala připojení. Ala pak tam taky přišel
                  ještě požadavek na ext. zpětnou vazbu, čímž se to
                  mírně zhoršilo a LEDka přežívala jen asi 10x.<br>
                  <br>
                  Celkovej závěr, co jsem si z toho odnes byl, že různí
                  lidé mají ohledně zdrojů velmi různé priority, vedoucí
                  k dost protichůdným vlastnostem.<br>
                  <br>
                  PH<br>
                  <br>
                  <div>Dne 23.01.2024 v 16:10 Jan Kuba napsal(a):<br>
                  </div>
                  <blockquote type="cite">    To ale  nejspįš nebyl
                    primárně laboratorní zdroj. Možná tam šlo právě o
                    nějaké dálkové řízení.
                    <div>Když bych k němu například připojil LED,
                      nastavil omezení na 20mA a napětí dejme tomu
                      pomalu zvedal na 15 V, bude vše OK. Jenomže stačí
                      LED na chvilku odpojit a zas připojit a je po ní.
                      Když o tom člověk ví tak se s tím dá žít, ale
                      nějaký větší kondenzátor na výstupu je prostě
                      problém.</div>
                    <div>Ty staré Teslácké zdroje typu BSxxx na výstupu
                      nic neměly, teda možná nějakou keramiku.. Sice to
                      bylo 1A max. , ale výše popsaný problém tam
                      nehrozil. (Mají jinou chybu, při zapnutí síťovým
                      vypínačem to na výstupu lupne naplno )</div>
                    <div>Asi není od věci mít těch</div>
                    <div>zdrojů víc a opravdu vědět který k čemu použít,
                      jaké má vlastnosti a limity pro to které využití.</div>
                    <div><br>
                    </div>
                    <div>Co se týče lineárního zdroje tak Číňan měl
                      takovou pěknou stavebnici asi se třema operákama 
                      a plno smetí okolo, bylo to poměrně složité, ale
                      chodilo to velmi dobře. Vzpomínám si že jsem to s
                      kamarádem měřil i pomocí paměťového osciloskopu a
                      oba jsme se divili jak ten zdroj je opravdu dobrý.</div>
                    <div>Už tady někdo psal že dobrý zdroj je základ
                      všeho.</div>
                    <div>Před pár lety jsem vyvíjel přijímač pro rádiový
                      orientační běh a vlastně díky mizernému zdroji
                      jsem to nikdy nedotáhnul. Když jsem pak později
                      přišel na to, že mi tam do toho pěkně in šuměl
                      zdroj tak už nebyla chuť se s tím dál zabývat. Byl
                      to tenhle kousek   </div>
                    <div><br>
                    </div>
                    <div>( <a
href="https://elektro.bazos.cz/inzerat/179078885/agilent.php"
                        target="_blank" moz-do-not-send="true">https://elektro.bazos.cz/<wbr>inzerat/179078885/agilent.php</a>
                      ) </div>
                    <div>a nejspíš nebyl asi úplně v pořádku. Koupil
                      jsem ho z firmy za mrzký  peníz, ale pak šel do
                      světa.<br>
                      <br>
                      úterý 23. ledna 2024 Pavel Hudeček <<a
                        href="mailto:edizon@seznam.cz" target="_blank"
                        moz-do-not-send="true"
                        class="moz-txt-link-freetext">edizon@seznam.cz</a>>
                      napsal(a):<br>
                      <blockquote
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"
                        class="gmail_quote">
                        <div> No mě kdysi poněkud šokovalo, že ve zdroji
                          Agillent byly na výstupu C 1 mili:)<br>
                          A ano, byl to lineární zdroj.<br>
                          <br>
                          Zkoumáním schématu jsem zjistil, že má poměrně
                          pomalou regulační smyčku, aby šel provozovat s
                          dlouhou externí zpětnou vazbou. Ale ty C mi
                          byly prezentovaný jako primárně nízkošumové
                          opatření. <br>
                          <br>
                          PH<br>
                          <br>
                          <div>Dne 23.01.2024 v 13:50 Jan Kuba
                            napsal(a):<br>
                          </div>
                          <blockquote type="cite"> Ne, to napětí na
                            výstupu pomalu naběhne a bez překmitu..
                            prostě se rozjede zdroj. Samozřejmě pokud
                            někdo potom odpojí a připojí drát tak tam
                            ten kondenzátor udělá proudovou špičku.
                            <div><br>
                            </div>
                            <div>Správný laboratorní zdroj na výstupu
                              nemůže mít žádnou kapacitu. U těch levných
                              spínaných to samozřejmě jinak udělat nejde
                              než že tam nějaká kapacita filtrační bude.
                              U těch kvalitnějších je lineární
                              stabilizátor a opatření,aby ta regulační
                              smyčka nekmitala a zároveň byl zdroj
                              tvrdý.<br>
                              <br>
                              úterý 23. ledna 2024 Pavel Hudeček <<a
                                href="mailto:edizon@seznam.cz"
                                target="_blank" moz-do-not-send="true"
                                class="moz-txt-link-freetext">edizon@seznam.cz</a>>
                              napsal(a):<br>
                              <blockquote
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"
                                class="gmail_quote">
                                <div> Tlačítko zapne relátko, takže
                                  imulzní proud bude stejnej.<br>
                                  <br>
                                  Ale u toho USB, pokud není správně
                                  vyřešeno v zařízení, může vadit
                                  opalování kontaktů.<br>
                                  <br>
                                  Pak je ještě zajímavé, proč některé
                                  lab. zdroje mají velké výstupní
                                  kapacity:<br>
                                  1. Požadavek na luxusní šumové
                                  parametry<br>
                                  2. Snaha zakrýt nekvalitní regulační
                                  smyčku<br>
                                  <br>
                                  PH<br>
                                  <br>
                                  <div>Dne 23.01.2024 v 12:31 Jan Kuba
                                    napsal(a):<br>
                                  </div>
                                  <blockquote type="cite"> Ano, byť je
                                    myslím červený vnitřek, je obyčejný.
                                    <div>Ale nepředpokládám, že by si
                                      někdo kupoval laboratorní zdroj a
                                      pak z něj nabíjel mobil.<br>
                                      <div><br>
                                      </div>
                                      <div>Na výstupu svorek  jsou
                                        zapojené elyty, takže i při
                                        proudovém omezení a připojení
                                        zátěže na dráty tam můze být
                                        proudový impulz.</div>
                                      <div>Proto by se asi mělo používat
                                        to tlačítko pro připojení
                                        zátěže.<br>
                                        <br>
                                        úterý 23. ledna 2024 Zuffa Jan
                                        <<a
                                          href="mailto:ZuffaJ@cgc.sk"
                                          target="_blank"
                                          moz-do-not-send="true"
                                          class="moz-txt-link-freetext">ZuffaJ@cgc.sk</a>>
                                        napsal(a):<br>
                                        <blockquote
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"
                                          class="gmail_quote">
                                          <div lang="EN-US">
                                            <div>
                                              <p class="MsoNormal">Akurat
                                                ten USB fast charging je
                                                obycajny, telefon mi
                                                rychlo nenabije.</p>
                                              <p class="MsoNormal">Aspon
                                                som ho zatial nedonutil.</p>
                                              <p class="MsoNormal"> </p>
                                              <p class="MsoNormal">J</p>
                                              <p class="MsoNormal"> </p>
                                              <p class="MsoNormal"><b>From:</b>
                                                Hw-list <<a
href="mailto:hw-list-bounces@list.hw.cz" target="_blank"
                                                  moz-do-not-send="true"
class="moz-txt-link-freetext">hw-list-bounces@list.hw.cz</a>> <b>On
                                                  Behalf Of </b>Jan
                                                Kuba<br>
                                                <b>Sent:</b> Sunday,
                                                January 21, 2024 11:41
                                                AM<br>
                                                <b>To:</b> HW-news <<a
href="mailto:hw-list@list.hw.cz" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">hw-list@list.hw.cz</a>><br>
                                                <b>Subject:</b> Re:
                                                Laboratorní zdroj</p>
                                              <p class="MsoNormal"> </p>
                                              <div>
                                                <p class="MsoNormal">Také
                                                  jsem koupil synovi
                                                  podobný. WPS605H </p>
                                                <div>
                                                  <p class="MsoNormal">Je
                                                    to ten kousek, jak s
                                                    ním na videu zkoušel
                                                    maník přepětí pro
                                                    hračky a někomu se
                                                    tu v konvi líbil.</p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal"> <a
href="https://www.aliexpress.com/item/1005006014921367.html"
                                                      target="_blank"
moz-do-not-send="true">https://www.aliexpress.com/<wbr>item/1005006014921367.html</a> 
                                                    Byl 11.11.  okolo
                                                    1200kč s poštovným</p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal"> </p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal">Mě
                                                    se moc líbí ( i
                                                    proto že vůbec
                                                    neruší - ham věci co
                                                    jsem testoval ) tak
                                                    jsem si ještě pro
                                                    sebe objednal
                                                    WPS3010H  ( verze
                                                    30V/10A ) </p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal">Uvnitř
                                                    je to hezky čistě
                                                    udělané. Točítka na
                                                    U,I jsou
                                                    inkrementální což se
                                                    mi narozdíl od
                                                    aripotů líbí, neboť
                                                    jde rychle udělat
                                                    změna napětí,
                                                    proudu.</p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal">(
                                                    Stiskem se přepíná
                                                    digit ) </p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal">Je
                                                    jasné, že to asi
                                                    nebude dosahovat
                                                    kvalit nějakých
                                                    profi lab. zdrojů,
                                                    ale jako lehký zdroj
                                                    na přenášení je to
                                                    výborné.</p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal">Po
                                                    zapnutí zdroje  (
                                                    síťový isostat ) se
                                                    na výstupu objeví
                                                    malinká jehlička asi
                                                    7V. </p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal"> </p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal">Při
                                                    vypínání a zapínání
                                                    tím SW tlačítkem je
                                                    to ale  je to v
                                                    pořádku. Ale po
                                                    zapnutí tím síťovým</p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal"> 
                                                    isostatem se ještě
                                                    musí zapnout výstup
                                                    tím tlačítkem, na to
                                                    zapomínám. </p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal"> </p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal">Chybí
                                                    mi nahoře nějaké
                                                    poutko, aby se to
                                                    dalo dobře čapnout,
                                                    nebo pověsit třeba k
                                                    racku.</p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal">Když
                                                    se to zatíží,
                                                    rozjede se interní
                                                    fan naplno, nemá to
                                                    žádnou
                                                    proporcionální
                                                    regulaci.</p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal"> </p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal">Za
                                                    ty peníze nemá smysl
                                                    v tomto základním
                                                    segmentu zdrojů
                                                    cokoliv bastlit.</p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal">Mám
                                                    ještě YIHUA 3010 ale
                                                    ten strašně šumí a
                                                    je to asi to
                                                    nejhorší co mám a je
                                                    v garáži na nabíjení
                                                    baterek.</p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal"> A
                                                    pak těžký ( možná
                                                    10kg ) lineární
                                                    zdroj  Instek GPS
                                                    4303 ale ten má
                                                    pevné místo na
                                                    stole.</p>
                                                </div>
                                                <div>
                                                  <p class="MsoNormal">Tesla
                                                    BS554 ( doplněná 3,5
                                                    LCD kvůli dual
                                                    měření ) bzučí
                                                    trafo, a duální
                                                    BS525 má jednu půlku
                                                    vadnou a není
                                                    živáčka, co by to
                                                    opravil.</p>
                                                </div>
                                                <div>
                                                  <div>
                                                    <p class="MsoNormal"> </p>
                                                  </div>
                                                </div>
                                              </div>
                                              <div>
                                                <p class="MsoNormal"> </p>
                                                <table
style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(211,212,222)"
                                                  cellpadding="0"
                                                  border="1">
                                                  <tbody>
                                                    <tr>
                                                      <td
style="width:41.25pt;border:none;padding:9.75pt 0.75pt 0.75pt"
                                                        width="55">
                                                        <p
class="MsoNormal"><a
href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail"
target="_blank" moz-do-not-send="true"><span
style="text-decoration:none"><img
src="https://s-install.avcdn.net/ipm/preview/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif"
style="width:0.4791in;height:0.302in" moz-do-not-send="true" width="46"
                                                          height="29"
                                                          border="0"></span></a></p>
                                                      </td>
                                                      <td
style="width:352.5pt;border:none;padding:9pt 0.75pt 0.75pt" width="470">
                                                        <p
style="line-height:13.5pt" class="MsoNormal"><span
style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(65,66,78)">Neobsahuje
                                                          žádné viry.<a
href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail"
target="_blank" moz-do-not-send="true"><span
style="color:rgb(68,83,234)">www.avast.com</span></a></span></p>
                                                      </td>
                                                    </tr>
                                                  </tbody>
                                                </table>
                                              </div>
                                              <p class="MsoNormal"> </p>
                                              <div>
                                                <div>
                                                  <p class="MsoNormal">čt
                                                    18. 1. 2024 v 16:57
                                                    odesílatel Zuffa Jan
                                                    <<a
href="mailto:ZuffaJ@cgc.sk" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">ZuffaJ@cgc.sk</a>> napsal:</p>
                                                </div>
                                                <blockquote
style="border-top:none;border-right:none;border-bottom:none;border-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in">
                                                  <div>
                                                    <div>
                                                      <div>
                                                        <p
class="MsoNormal">DD,</p>
                                                        <p
class="MsoNormal"> </p>
                                                        <p
class="MsoNormal">Ja som kupil minuly mesiac toto:</p>
                                                        <p
class="MsoNormal"> </p>
                                                        <p
class="MsoNormal"><a
href="https://vi.aliexpress.com/item/1005005418678378.html?spm=a2g0o.order_list.order_list_main.29.68371802XZq9hv&gatewayAdapt=glo2vnm"
target="_blank" moz-do-not-send="true">https://vi.aliexpress.com/<wbr>item/1005005418678378.html?<wbr>spm=a2g0o.order_list.order_<wbr>list_main.29.68371802XZq9hv&<wbr>gatewayAdapt=glo2vnm</a></p>
                                                        <p
class="MsoNormal"> </p>
                                                        <p
class="MsoNormal">Po zapnuti je potrebne vystup aktivovat, co mi vadi je
                                                          ze sa neda
                                                          trvalo vypnut
                                                          pipak</p>
                                                        <p
class="MsoNormal">(po vypnuti opat pipa) a ventilator bud ide naplno
                                                          alebo vobec.</p>
                                                        <p
class="MsoNormal">Takze zatial spokojnost.</p>
                                                        <p
class="MsoNormal"> </p>
                                                        <p
class="MsoNormal">Este som natrafil a objednal tento:</p>
                                                        <p
class="MsoNormal"> </p>
                                                        <p
class="MsoNormal"><a
href="https://vi.aliexpress.com/item/4000092785116.html?spm=a2g0o.order_list.order_list_main.11.68371802XZq9hv&gatewayAdapt=glo2vnm"
target="_blank" moz-do-not-send="true">https://vi.aliexpress.com/<wbr>item/4000092785116.html?spm=<wbr>a2g0o.order_list.order_list_<wbr>main.11.68371802XZq9hv&<wbr>gatewayAdapt=glo2vnm</a></p>
                                                        <p
class="MsoNormal"> </p>
                                                        <p
class="MsoNormal">Ten je bez aktivneho chladenia ale da iba 30V/5A ale
                                                          je este mensi
                                                          ako ten prvy
                                                          tak ked pride
                                                          potestujem a
                                                          zreferujem</p>
                                                        <p
class="MsoNormal">A tie ceny sa na ali dost menia v pondelok som ho
                                                          objednal za 61
                                                          a dnes je uz
                                                          za 57 +-
                                                          drobne</p>
                                                        <p
class="MsoNormal"> </p>
                                                        <p
class="MsoNormal">j.</p>
                                                        <p
class="MsoNormal"> </p>
                                                        <p
class="MsoNormal"><b>From:</b> Hw-list <<a
href="mailto:hw-list-bounces@list.hw.cz" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">hw-list-bounces@list.hw.cz</a>>
                                                          <b>On Behalf
                                                          Of </b>Jirka
                                                          Mww<br>
                                                          <b>Sent:</b>
                                                          Thursday,
                                                          January 18,
                                                          2024 4:16 PM<br>
                                                          <b>To:</b>
                                                          HW-news <<a
href="mailto:hw-list@list.hw.cz" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">hw-list@list.hw.cz</a>><br>
                                                          <b>Subject:</b>
                                                          Re:
                                                          Laboratorní
                                                          zdroj</p>
                                                        <p
class="MsoNormal"> </p>
                                                        <div>
                                                          <p
class="MsoNormal">Já mám jen  stabilizovaný zdroj ARITMA TSZ 75 , má dva
                                                          regulované
                                                          výstupy 0-30 V
                                                          200 mA -  2A,
                                                          pak
                                                          neregulované 2
                                                          x 15V 1A a 5V
                                                          2A.  Žádný
                                                          mikroprocesor,
                                                          jen součástky 
                                                          TESLA:  Když
                                                          něco odejde,
                                                          opravím to,
                                                          schemata mám,
                                                          součástky jsou
                                                          volně
                                                          dostupné,
                                                          žádné SMD
                                                          (((:::</p>
                                                          <div>
                                                          <p
class="MsoNormal">Jen samá pozitiva.   Ještě mám  zdroj TESLA BS225 , 2
                                                          x 0-30 V
                                                          0-1A,   A ze
                                                          silnějších
                                                          nějaký
                                                          německý 
                                                          přepínatelný 
                                                          28V / 48V/60V 
                                                          30A   a
                                                          nakonec jeden
                                                          napájený
                                                          3fázově ze  3
                                                          x 400V  s
                                                          výstupem 
                                                          50V/50A.  Jeho
                                                          použití teprve
                                                          plánuju, zatím
                                                          takový vysílač
                                                          , ke kterému
                                                          by se hodil,
                                                          nemám ((::.  </p>
                                                          </div>
                                                          <div>
                                                          <p
class="MsoNormal"><br clear="all">
                                                          </p>
                                                          <div>
                                                          <div>
                                                          <p
class="MsoNormal">Zdravi<br>
                                                          Jirka
                                                          Sloupenský
                                                           OK1MWW</p>
                                                          </div>
                                                          </div>
                                                          <p
class="MsoNormal"> </p>
                                                          </div>
                                                        </div>
                                                        <div>
                                                          <p
class="MsoNormal"> </p>
                                                          <table
style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(211,212,222)"
cellpadding="0" border="1">
                                                          <tbody>
                                                          <tr>
                                                          <td
style="width:41.25pt;border:none;padding:9.75pt 0.75pt 0.75pt"
                                                          width="55">
                                                          <p
class="MsoNormal"><a
href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail"
target="_blank" moz-do-not-send="true"><span
style="text-decoration:none"><img
src="https://s-install.avcdn.net/ipm/preview/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif"
style="width:0.4791in;height:0.302in" moz-do-not-send="true" width="46"
                                                          height="29"
                                                          border="0"></span></a></p>
                                                          </td>
                                                          <td
style="width:352.5pt;border:none;padding:9pt 0.75pt 0.75pt" width="470">
                                                          <p
style="line-height:13.5pt" class="MsoNormal"> <span
style="font-size:10pt;font-family:Arial,sans-serif;color:rgb(65,66,78)">Neobsahuje
                                                          žádné viry.<a
href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail"
target="_blank" moz-do-not-send="true"><span
style="color:rgb(68,83,234)">www.avast.com</span></a></span></p>
                                                          </td>
                                                          </tr>
                                                          </tbody>
                                                          </table>
                                                        </div>
                                                        <p
class="MsoNormal"> </p>
                                                        <div>
                                                          <div>
                                                          <p
class="MsoNormal">čt 18. 1. 2024 v 15:28 odesílatel Pavel Hudeček <<a
href="mailto:edizon@seznam.cz" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">edizon@seznam.cz</a>> napsal:</p>
                                                          </div>
                                                          <blockquote
style="border-top:none;border-right:none;border-bottom:none;border-left:1pt solid rgb(204,204,204);padding:0in 0in 0in 6pt;margin:5pt 0in 5pt 4.8pt">
                                                          <div>
                                                          <p
style="margin-bottom:12pt" class="MsoNormal">Tohle je v podstatě problém
                                                          všech zdrojů,
                                                          které nemají
                                                          dobré vypínání
                                                          výstupu. Tzn.
                                                          <b>nebrat</b>
                                                          zdroje, které:<br>
                                                          1. Nemají
                                                          skutečné
                                                          vypínání
                                                          výstupu, tedy
                                                          nemají stav,
                                                          kdy zdroj
                                                          běží, má na
                                                          výstupu
                                                          nastavené
                                                          napětí, ale to
                                                          tam nejde,
                                                          protože je
                                                          odpojený od
                                                          výstupních
                                                          svorek.<br>
                                                          2. Vypínání
                                                          výstupu přímo
                                                          mechanickým
                                                          vypínačem,
                                                          protože když
                                                          bude výstup
                                                          mechanicky
                                                          zaplý před
                                                          zapnutím
                                                          napájení...<br>
                                                          <br>
                                                          Takže naopak
                                                          co mít musí:<br>
                                                          1. Nějaký
                                                          čudlík, kterým
                                                          jde
                                                          zapnout/vypnout
                                                          výstup na
                                                          zaplém zdroji.<br>
                                                          2. Buď musí
                                                          být výchozí
                                                          stav vypnuto,
                                                          nebo obnovení
                                                          stavu po
                                                          zapnutí
                                                          napájení musí
                                                          mít zpoždění,
                                                          třeba než
                                                          naběhne řídící
                                                          počítač, nebo
                                                          nejlíp po té,
                                                          co ověří, že
                                                          je tam co je
                                                          nastaveno.<br>
                                                          <br>
                                                          Výsledkem je,
                                                          že pokud
                                                          "hloupej"
                                                          zdroj, tak
                                                          pokud možno
                                                          jen takovej,
                                                          co je až tak
                                                          hloupej že si
                                                          nepamatuje
                                                          stav zapnutí
                                                          výstupu a má
                                                          ho vždy na
                                                          začátku
                                                          vyplej. A
                                                          pokud chytrej,
                                                          tak je to
                                                          skoro jedno.<br>
                                                          <br>
                                                          (Ale teda taky
                                                          aby chytrej
                                                          nebyl k vzteku
                                                          a neměl třeba
                                                          jedno
                                                          kroutítko na U
                                                          a I na dvou
                                                          kanálech. U
                                                          chytrejch je
                                                          prostě vždy
                                                          potřeba předem
                                                          prozkoumat
                                                          návod.)<br>
                                                          <br>
                                                          PH</p>
                                                          <div>
                                                          <p
class="MsoNormal">Dne 18.01.2024 v 12:34 Petr Zapadlo napsal(a):</p>
                                                          </div>
                                                          <blockquote
style="margin-top:5pt;margin-bottom:5pt">
                                                          <p
class="MsoNormal">Zdravím, <br>
                                                          <br>
                                                          tak jsem včera
                                                          zjistil velmi
                                                          nemilou věc -
                                                          můj stávající
                                                          zdroj udělaný
                                                          ze dvou modulů
                                                          podobných
                                                          tomuto: <br>
                                                          <br>
                                                          <a
href="https://vi.aliexpress.com/item/1005006027316353.html"
target="_blank" moz-do-not-send="true">https://vi.aliexpress.com/<wbr>item/1005006027316353.html</a>
                                                          a zdroje na
                                                          DIN lištu, tak
                                                          při zapnutí
                                                          krátce vyletí
                                                          na >10V bez
                                                          ohledu na to
                                                          co je
                                                          nastaveno.
                                                          (Při studeném
                                                          startu, pokud
                                                          se to zapne
                                                          čudlíkem na
                                                          modulu, tak je
                                                          vše OK).
                                                          Zjistil jsem
                                                          to samozřejmě
                                                          až po té co se
                                                          mi začoudilo z
                                                          wifi modulu 
                                                          realtek
                                                          rtl87xx. <br>
                                                          <br>
                                                          Tím se
                                                          vysvětlilo
                                                          několik
                                                          předchozích
                                                          příhod. <br>
                                                          <br>
                                                          A teď k tomu
                                                          nejdůležitějšímu 
                                                          - potřebuji
                                                          použitelný
                                                          laboratorní
                                                          zdroj. Ideálně
                                                          2 kanály.
                                                          Nemusí být
                                                          nijak
                                                          programovatelný.
                                                          <br>
                                                          <br>
                                                          V historii
                                                          konference
                                                          jsem našel
                                                          nedoporučení
                                                          na
                                                          SPS3010-2KD.
                                                          Předpokládám,
                                                          že vytknuté
                                                          vady se budou
                                                          týkat i
                                                          odvozených
                                                          modelů např
                                                          SPS305-2KD
                                                          (jen 5A). 
                                                          Požadavek je
                                                          poměrně
                                                          jednoduchý -
                                                          30V/5A mi
                                                          stačí. Duální
                                                          provedení by
                                                          bylo super.
                                                          Ale ja kse
                                                          dívám na 
                                                          Alim, duálních
                                                          zdrojů je tam
                                                          jak šafránu. 
                                                          Single zdrojů
                                                          je tam poměrně
                                                          hodně. Nicméně
                                                          parametry
                                                          budou naprostá
                                                          loterie. <br>
                                                          <br>
                                                          Máte nějakou
                                                          konkrétní
                                                          zkušenost? 
                                                          Jsem poměrně
                                                          nenáročný,
                                                          nicméně
                                                          logické
                                                          ovládání je
                                                          velké plus a
                                                          taky možnost
                                                          rychle vypnout
                                                          daný kanál -
                                                          to pokud vím
                                                          nemá například
                                                          ten SPS... </p>
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