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???
01/13/10 10:36
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#172423 - Leakage and bleeds
Responding to: ???'s previous message
There is no bleed resistor across C1/C2, so even a small leakage current through the Triac or D5/D6 will charge C1/C2 to full rectified mains. A bleed resistor is also highly recommended so that the capacitors discharge themselves in a sensible time after the unit is disconnected from the mains.

This circuit has no form of inrush current limiting, and almost certainly does not comply with European Union CE requirements. I would look at PFC (power factor correction) chips which charge capacitors in the way you want.

List of 5 messages in thread
TopicAuthorDate
Flash Light Charging Problem            01/01/70 00:00      
   right side limiting            01/01/70 00:00      
   RE: Va and Vb woudl be isolated from each other            01/01/70 00:00      
   Leakage and bleeds            01/01/70 00:00      
   Phase angle control?            01/01/70 00:00      

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