valley-fill pfc circuit

200

03:12:56

published 11 years ago

Secuture

11 years ago

It's looks identical as one branch of passive voltage dividing rectifier. means diode pump load caps in series and discharge in parallel dividing input voltage by ammount of dividng nodes. But how this is related to this strange "valley fill" something???

HapHazard

11 years ago

It is a passive power factor correction circuit, I think I found it on Wikipedia. observe how the ac supply current looks more sinusoidal that the other circuit I made to compare with, "rectifier no pfc" which can only draw current when the dc side voltage is 2 diode drops below the instantaneous ac voltage.

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