ϢԴ׃l硷ĺҪИI(y)cԼMЉ׃lИI(y)ėlˎch
1ЈF(xin)
(j)Ї(jng)l(f)չrĿǰƼsЇ(jng)l(f)չĴc}ú\ú-\-@һlƼsf(xi){(dio)l(f)չĽ(jng)δ(ni)(ji)(ji)h(hun)ᵽĹճρҪnjᵽI(y)FĹճρڻұʯͻИI(y)f(ji)Ҳǹ(ji)úҲǭh(hun)ͬrǽͳɱЧ;֮һ˹(ji)ܵĴuͬrҲo߉׃lI(y)(Mڡa(chn))ṩһЈCSI(y){(dio)ԇa(chn)Љ׃l{(dio)
2ЇI(y)c
Ї@Kĸ_Ŷʮγ@һNڅݣ
oՓĂИI(y)ֻҪJЈǰڃ(ni)Sҵ۹ⲻsͬļе@ИI(y)ρһϡ(jng)@ЇVCDИI(y)
F(xin)ڵұ늽X늏Sµ͵ИI(y)˽ϣY(ji)ںܶ̕rg(ni)a(chn)hh(j)(jng)W^a(chn)20~30%I(y)Ͱl(f)չк̎ģa(chn)100~200%ИI(y)foһy
3ИI(y)c
ЇĹʰ댧w߀HHͣڹʶOܡɿع衢GTOļg(sh)]дİl(f)չĿǰVõMOSFETIGBTIGCTȫهM
ڛ]Їa(chn)MˇQЇИI(y)İl(f)չ90%ϵЈMڮa(chn)ƷռI(lng)ИI(y)c
(1) ИI(y)ԽС늉Խa(chn)ďSԽԽ늉Խa(chn)ďSԽ
Ŀǰ͉׃lďSұTABBʩ͵˹|֥ʿAB
ĿǰЉ׃lı^õֻAB_eձĖ|֥WTӵ
(2) g(sh)
һWƽ͌W늚̼g(sh)Sg(sh)İl(f)չcF(xin)ՓϿƌW늙CӼg(sh)SI(lng)P(gun)
(3) _l(f)ɱ
Ӯa(chn)ƷeǴʵĮa(chn)Ʒ_l(f)Ҫĸ߾O(sh)̓xڹʰ댧w(IGBT)(ni)^F(xin)óҎ(gu)ֶ^yڑ^ͻȻpĵĬF(xin)(jng)l(f)ֻвҎ(gu)ɲܺܺõđ@Щ(jng)ķeҪYͶġĿǰЩa(chn)Љ׃lʹ^߀IGBTըĬF(xin)l(f)
4MЉ׃lИI(y)횾߂ėl
(1) ˼ϵĜʂ
Ӯa(chn)Ʒ_l(f)LYͶҪӲ̡־Ñ(zhn)ֻڮǰ(ji)˳A@ø~؈a(chn)ƷN۴Љ׃lһI(y)Ҫм{(dio)ǰֻͶ]л؈˼ʂtòҪM܊@ИI(y)
(2) ˲ŵĜʂeǸg(sh)˲ŵĜʂ
ИI(y)ˆTČH(jng)ķeҪκη涼ҪJЎׂTʿʿ͕ܿİѮa(chn)Ʒ_l(f)ƿɿϾͲֻһTһ|֥һGEһABˣ˹ˇϵy(tng)g(sh)Ľ(jng)ķeǷdzҪ
5oИI(y)еI(y)Ľh
(1) đB(ti)Ҫ[Ҫ
|(zh)摪ԓ_̤ȥЉ׃lČI(y)njڵI(y)һcδÑʹÕrӳ@һcձ|֥®a(chn)ƷڹS\1~2Na(chn)ƷڹSrˆ}@ƵҪĸMʹa(chn)Ʒһa(chn)ƷƷN۳ȥF(xin)tǮa(chn)Ʒ|(zh)Ć}ڹI(y)(ni)ʿڌԭÑtӳʸɴfa(chn)Ʒa(chn)Љ׃lķ
˽hЉ׃lđB(ti)Ҫ[ҪɡڗlSr߀һζȥӆεY(ji)ǼӰI(y)uʹġѡ̎ڱӵľͬrӰ푵҂ИI(y)
(2) ИI(y)f(xi)
ڃrҽhWһWW˽M҂ԓԼИI(y)f(xi)ԓьI(y)ֹԽ|(zh)ŕߣɱŕ½I(y)(ni)]нO(sh)áɱ]нrֻһζĽͮa(chn)Ʒr@ИI(y)Ϳ͑fDzؓ؟
҂͑Z|(zh)5߀10꣬ҪC҂I(y)Ҫ1020100
I(y)gĸǶg(sh)|(zh)ϡrϣ҂ܰѸHHڃr҂ҪoИI(y)coۺcɱ҂Įa(chn)ƷSoһľx
֮Љ׃lЈǰ·ǺҪ˼ʂ䣬ЇЈlҲܰ@Ҫ҂ИI(y)ϵĻf(xi)ֹP(gun)ИI(y)P(gun)δ
ИI(y)l(f)չI(y)@@҂ͬĿ