精品国产一区在线_av无码中文字幕无码王_天海翼三点刺激高潮不停_好硬好大好爽视频_欧美高清一区三区在线专区_香蕉黄色片

PIengineer,Ihavemadethesameexperimentwithoutstackfettopology.Thentheefficiencyisthesamewithbeforeresult.TherebyIthinkmaybetheissueisnottheIC.UntilnowImakesomeotherimprovmentonthat,andtheefficiencyisabout68,55%.Itislittlemorehighterthanbefore.NowIwillattachmenttheschematic,andpleasehelpmeimprovethat.Ihopethatefficiencycanreachover70%at750mWoutputpower.andinputvoltageisfrom300-600Voutputpowerisabout750mW.132311190300361.pdf

PI的工程師不在嗎?怎么沒有回復(fù)呢?自己頂一下,壇子里的電源高手給個(gè)建議,看看有沒有什么辦法解決效率問題,明天我會將原理圖以及PCB的圖放上來,請高手賜教!

Today,Imadesomeimprovementsontheflybackconverter.Untillnowtheefficiencyisupto54,66%at380VDCinput.Inordertomakethefurthersteponefficiency,CouldPIexpertbringsomesuggestionsonthat.Thx.

Noanyanswer?PIAE:couldgivemesomesuggestiononthat?whatkindofmethodswouldbeposibilityforrealizingthehighefficiencyamingtothehighvoltageinputandlowpoweroutput?

我的郵箱是:liujiehit2000@sohu.com  謝謝!

用acrobat軟件打開!

萬分感謝!:)