Patent ID: 8040117

Claim:
A regulated power control apparatus comprising a closed loop negative feedback system: a clock generator circuit configured for generating a clock signal at a predetermined frequency as a low frequency modulator; an amplifier circuit coupled with the clock generator circuit, wherein the amplifier circuit includes a modulated gain circuit coupled with the clock generator circuit, wherein the amplifier circuit is configured to receive the clock signal at a switching element of the modulated gain circuit; a controller circuit configured for receiving a modulated error signal of the amplifier circuit; a switching circuit configured for receiving the modulated error signal, wherein the error signal is modulated using the clock signal to vary a gain value of the gain circuit according to the predetermined frequency of the clock signal; and an output circuit coupled with the switching circuit, the output circuit configured for generating a regulated voltage signal, wherein the controller circuit uses the modulated error signal to substantially reduce harmonic distribution in a switching frequency of the switching circuit.