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WEBENCH® Tools: Replacing High Value Output ceramic capacitor with Aluminium Electrolytic capacitor for High frequency LLC dc-dc

Lenin Prakash
Intellectual 660 points

Tool/software: WEBENCH® Design Tools

Hi

  This is with related to the reference design of Enhanced LLC dc-dc converter 500W, 500 kHz (Input 290-390 V DC, output - 30 V DC).

In all the designs on LLC dc-dc converter, the output capacitor is given as a custom and the value is something greater than 500 micro farad..

It might require several number of ceramic capacitors to put in series and parallell to arrive at this value.. Is it ok to put an aluminium electrolytic

capacitor in place of a ceramic capacitor..

Thanks

Lenin.