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Dobry den,<br>
<br>
pozrite si<br>
<a class="moz-txt-link-freetext" href="http://www.seekic.com/circuit_diagram/Power_Supply_Circuit/Adjustable__Power_Supply_Circuit_of_IR2111.html">http://www.seekic.com/circuit_diagram/Power_Supply_Circuit/Adjustable__Power_Supply_Circuit_of_IR2111.html</a><br>
<br>
Moznosti:<br>
1. Vytvorite si pozadovanych 110V pre kupeny driver. Nastavte PWM
50kHz 50% a na vystup pripojte driver na 110V. No a co, ze je to
usmernene, to ten driver robi tiez.<br>
<br>
2. Pridajte napr. LM2574-ADJ (2575,2576) (inspiracia z
<a class="moz-txt-link-freetext" href="http://www.go-gddq.com/html/s719/2013-01/992631.htm">http://www.go-gddq.com/html/s719/2013-01/992631.htm</a>), upravte spätnu
väzbu tak, ze namiesto odpora 22k na vystupe bude LED a spodny odpor
R = 1,23V / Iled, a mate vlastny driver.<br>
Pre prud 3A je vhodne upravit Feedback podla
<a class="moz-txt-link-freetext" href="https://www.mikrocontroller.net/attachment/29604/2675.png">https://www.mikrocontroller.net/attachment/29604/2675.png</a><br>
<br>
Richard Kaliciak<br>
<br>
<br>
<div class="moz-cite-prefix">Am 12.01.2016 um 12:22 schrieb Jiří
Vojtek:<br>
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<p class="MsoNormal"><span lang="CS">Zdravim,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="CS">Predelavam osvetleni do
akvaria a jsa idiot jsem objednal ledky i s LED driverem,
ale nevsiml jsem si ze vstupniu napeti je na 110V.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="CS">Koukal jsem po hotovych
vecech a budto je to drahe, nebo to neumi stmivat. Tak jsem
si rekl, ze jako cviceni bych se pokusil neco postavit.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="CS">Hledam nejakou konstrukci
kterou bych priohnul. Zacit komplet znova si netroufa.
Poradite nekdo ?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="CS">Jinak parametry jsou <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="CS">Vsuto 230V výstup max 34
V 3 A <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="CS">Diky <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="CS">J.V.<o:p></o:p></span></p>
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