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nbdy:
CA5istoobig,0.47uFwouldbeok.
2012-08-30 00:28 回复
原帖:BUCK震荡了,连电感冲放电过程都没有,大家进来讨论下
nbdy:
plsremoveQA1&CA3,andconnectRA2toPin6directly.
2012-08-29 18:14 回复
原帖:BUCK震荡了,连电感冲放电过程都没有,大家进来讨论下
nbdy:
IncreaseR1&R2.
2012-08-22 23:38 回复
原帖:吸收电路二极管的对比
nbdy:
Haveyousolvedtheissue?At90Vac,itoperatesatCCMpossiblely.Byincreasingtransformerratioorreducingprimaryinductance ,itispossibletogetthesystembacktoDCMoperation,andTrisecouldbereducedfortheMOSFET.
2012-08-22 18:53 回复
原帖:MOS管温升过高
nbdy:
Getthedatasheet,letshavealook.
2012-08-22 18:22 回复
原帖:BUCK电路输出恒流频率恒定的困惑
nbdy:
ItmightbeusefultoincreaseR5from1Kto2.2Kor3.3K. BTW,yourmethod lookscomplicatedandwouldbequitecostive.There areeasierandcheapersolutions.
2012-08-22 17:46 回复
原帖:OB2263 非隔离方案,输出电压超过90V,变压器吱吱响
nbdy:
TrytoincreaseC19tonForupto1uF first.
2012-08-22 17:06 回复
原帖:OB2203无输出,玩过的大师进来帮忙下!
nbdy:
It canbesolved,donworry.Couldyoupleaseletmeknowyouremailorphonenumbersothecommunicationwouldbeeasy. Thanks.
2012-08-22 16:48 回复
原帖:OB2203无输出,玩过的大师进来帮忙下!
nbdy:
Gladtoknowyouvefoundthereason.
2012-08-22 15:46 回复
原帖:OB2203无输出,玩过的大师进来帮忙下!
nbdy:
Youmethodisgood,however,Ihaveabettersolution.
2012-08-22 15:36 回复
原帖:晒一晒我的大功率驱动器,我认为是世界最强的
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