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<p>este som nasiel zaujimave citanie</p>
<p>The Trench Power MOSFET: Part I—History, Technology, and
Prospects<br>
</p>
<p><a class="moz-txt-link-freetext" href="https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7862948">https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7862948</a></p>
<p>The Trench Power MOSFET—Part II: Application Specific VDMOS,
LDMOS, Packaging, and Reliability<br>
</p>
<p><a class="moz-txt-link-freetext" href="https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7862937">https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7862937</a></p>
<p>b.</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 05/11/2020 08:36, Dodo Racek wrote:<br>
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cite="mid:CAP5hgLhLDeena3H2Ofdygp=MQthw3KayBw_MYhm4ZTLa4+PhLQ@mail.gmail.com">
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<div dir="ltr" class="gmail_attr">št 5. 11. 2020 o 2:11 Pavel
Hudecek <<a href="mailto:edizon@seznam.cz"
moz-do-not-send="true">edizon@seznam.cz</a>>
napísal(a):<br>
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<p class="MsoNormal">5 vyvodov dohromady ma cca 1.5 mm^2</p>
<p class="MsoNormal"> – Ale jsou krátké, končí
v podstatě ve slušně chladící ploše. A je jich 5, jsou
samostatně ve vzduchu a ještě obdélníkový průřez.</p>
<p class="MsoNormal"> </p>
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<div>Od miesta zapajkovania po misto kontaktu na cipe
odhadujem cca 8mm, ak su z medi, tak sumarny odpor 5-tice
vyvodov je okolo 0.09 miliohmu.</div>
<div>Pri prude 113A je vykonova strata len na 5-tici vyvodov
okolo 1.16 W<br>
</div>
<div>Stranu pri chipe za chladenie nemozeme povazovat, kedze
tam je vykonova strata okolo 40W (113A, 3.9miliohm) a vyvody
by mali pomahat chladit chip.</div>
<div>Pre dynamicke pouzitie je samozrejme vykonova strata na
chipe vyssia.<br>
</div>
<div><br>
</div>
<div>Ale skor mi islo o spoj medzi chipom ( kremikom) a
vyvodom. To uz nemoze byt "vysivaci zlaty drotik", ako za
onoho casu. Musi to byt "navarene" tlak, ultrazvuk, ...
priamo vyvod na kremik. Pri rozsahu teplot 200 stupnov tam
musia vznikat celkom slusne pnutia.<br>
</div>
<div> </div>
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<p class="MsoNormal">640 A pulzně</p>
<p class="MsoNormal"> – Tam jde čistě o to, že čip a
všechno okolo má nějakou tepelnou kapacitu. Proto je
tam podmínka 25 °C a ještě see fig. 3 a tam safe
operating area. Takže máme 640 A, 3,9 mOhm: To je
necelých 1600 W. Po vynásobení max. 0,1 ms dostaneme
0,16 J (100g zvedne 16 cm vysoko, nebo ohřeje 1 ml
vody o 0,66 °C).</p>
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<div><br>
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<div>Zdvihnutie 100g do vysky 16 cm za 0.1 ms je uz celkom
"vybuch" ;-), aj ked staticky to vyzera smiesna hracka (
balicek cukrikov na zavaraninovej flaske ) <br>
</div>
<div> </div>
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<p class="MsoNormal"> </p>
<p class="MsoNormal">PH</p>
<p class="MsoNormal"> </p>
<div style="border-color:rgb(225,225,225) currentcolor
currentcolor;border-style:solid none
none;border-width:1pt medium medium;padding:3pt 0cm
0cm">
<p class="MsoNormal" style="border:medium
none;padding:0cm"><b>Od: </b><a
href="mailto:dodoracek@gmail.com" target="_blank"
moz-do-not-send="true">Dodo Racek</a><br>
<br>
</p>
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<p class="MsoNormal">Toto som nikdy nepochopil...</p>
<div>
<p class="MsoNormal"> </p>
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<div>
<p class="MsoNormal">5 vyvodov dohromady ma cca 1.5
mm^2</p>
</div>
<div>
<p class="MsoNormal">A prudy su tam nad 100 A....</p>
</div>
<div>
<p class="MsoNormal">Nekomentujem 640A pulzne.</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Asi vymenim na zvaracke kable
za snurky od meraka... </p>
</div>
<div>
<p class="MsoNormal">Ked to funguje na tranzistore,
malo by aj na zvaracke... </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal" style="margin-bottom:12pt">Cim
je to bodovane medzi kremikom a vyvodmi ???</p>
<div>
<p class="MsoNormal">Dodo <br>
mobil</p>
</div>
</div>
</div>
<p class="MsoNormal"> </p>
<div>
<div>
<p class="MsoNormal">Dňa st 4. 11. 2020, 21:19 balu
<<a href="mailto:balu@k-net.fr" target="_blank"
moz-do-not-send="true">balu@k-net.fr</a>>
napísal(a):</p>
</div>
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<p>znie to velmi jednoducho, az sa podozrievam z
nepochopenia zadania. </p>
<p>Zapojis 10 takychto <a
href="https://www.tme.eu/Document/02f046f3db893b80b37432cebd22a9bd/IPB039N10N3G-DTE.pdf"
target="_blank" moz-do-not-send="true">https://www.tme.eu/Document/02f046f3db893b80b37432cebd22a9bd/IPB039N10N3G-DTE.pdf</a></p>
<p>alebo podobnych paralelne a mas to?</p>
<p> </p>
<div>
<p class="MsoNormal">On 04/11/2020 21:16, Marián
Hubinský wrote:</p>
</div>
<blockquote
style="margin-top:5pt;margin-bottom:5pt">
<p class="MsoNormal"
style="margin-right:36pt;margin-bottom:12pt;margin-left:47.55pt"><span
style="font-size:10pt;font-family:"Arial",sans-serif">Pozdravujem
osadenstvo,</span> <br>
<br>
<span
style="font-size:10pt;font-family:"Arial",sans-serif">mam
DC zdroj 35V / 450A a potrebujem z neho
dostat PWM signal, napajany bude vyhrevny
element - skoro skrat.</span> <br>
<br>
<span
style="font-size:10pt;font-family:"Arial",sans-serif">Nemate
niekto cisto nahodou nieco podobne v
sufliku?</span> </p>
</blockquote>
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</blockquote>
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<p class="MsoNormal"> </p>
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