Patent ID: 9572224
Date: 2017-02-14
CPC Classifications: H05B,Y02B

Claim:
1. A bleeder control circuit for a controller of a power converter, wherein the bleeder control circuit is operable to receive an input current sense signal representative of an input current of the power converter and a temperature signal representative of a temperature of the power converter, wherein the bleeder control circuit is configured to output an adjustable bleeder control signal to control a bleeder current of a bleeder circuit of the power converter based at least in part on the input current sense signal and the temperature signal, wherein the bleeder control circuit is configured to output the bleeder control signal at a level that causes the bleeder current to be substantially equal to zero in response to the input current sense signal being greater than or equal to a reference signal, and wherein the bleeder control circuit is configured to output the bleeder control signal at a level that causes the bleeder current to be greater than zero in response to the input current sense signal being less than the reference signal.