Patent ID: 7755917

Claim:
A power supply regulator, comprising: a compare circuit to be coupled to receive a feedback signal representative of an output level of a power supply to cause a feedback state signal to be generated having a first feedback state that represents an output level of the power supply that is above a threshold level and a second feedback state that represents an output level of the power supply that is below the threshold level; an adjustment circuit coupled to the compare circuit and further including a modulation source coupled to output a modulation signal to adjust the feedback state signal from a current state to an alternate state in a subsequent switching period in response to at least one of adjusting the threshold level or adjusting the feedback signal, wherein the feedback state is determined in response to the modulation signal and the feedback signal, and the modulation signal is determined in response to the feedback state; and a control circuit to be coupled to a power switch and is to be coupled to receive an oscillating signal and the feedback state signal, the control circuit to control switching of the power switch in response to the oscillating signal and the feedback state signal to regulate the output level of the power supply.