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cooper
Level 1
Level 1
Distributor - Arrow(GC)
5 questions asked 10 sign-ins First solution authored

hello, IDP2303A PFC is ok can reach 380V,but LLC output 12V is no stable,refer to issue waveform  attached and Sch.,Please help analysis the reason, many thanks

 

 

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1 解答
Daisy_T
Moderator
Moderator
Moderator
250 sign-ins 250 replies posted 25 likes received

Hello @cooper ,

The output voltage sense line should be connected to output (after output caps), pleas modify this connection.

Please refer to our demo board circuit on page 10.

And please also double check other components according our demo board circuit.

在原帖中查看解决方案

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Daisy_T
Moderator
Moderator
Moderator
250 sign-ins 250 replies posted 25 likes received

Hello @cooper ,

The output voltage sense line should be connected to output (after output caps), pleas modify this connection.

Please refer to our demo board circuit on page 10.

And please also double check other components according our demo board circuit.

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