LNK6xxx : Sink current on the auxilliary winding

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Hello,

I would like to use the LNK6779 device to realize a power-supply and I would like aloso use the the auxiliary voltage to power supply additionnal electronical functions. Is there a way to realize such function?

Design with LNK6xxx

Hi,

The capacitor directly connected on BP pin supplies internal bias only. Additional electronics can be powered from auxiliary winding output capacitor. There should be a resistor connected between auxiliary output capacitor and BP pin capacitor.