Power supply feedback control using sensed duty cycle

摘要

A feedback control circuit 10 is to be used with a power supply 12 . Circuit 10 has a feedback controller 14 for providing a feedback signal to the power supply 12 in both continuous current mode and discontinuous current mode. A duty cycle sensor controller 16 is connected to the feedback controller for sensing a duty cycle of the power supply 12 . The feedback controller optimizes the feedback signal provided to the power supply 12 for continuous current mode or discontinuous current mode based on the sensed duty cycle.