Patent ID: 8278902

Claim:
A converter for converting an input DC voltage to an output DC voltage, the converter comprising: a switching power converter for converting an input DC voltage to an output DC voltage comprising a switch to selectively connect the input DC voltage to an energy storage device and provide the output DC voltage therefrom; and a switching controller operatively connected to the switching power converter to control the switch, wherein the switching controller comprises: a spread spectrum clock signal generator for generating a pulse width modulation centering signal; an error amplifier operatively connected to receive the pulse width modulation centering signal from the spread spectrum clock signal generator, to receive a switching voltage measured after the switching of the switching power converter, to receive an output voltage from the switching power converter for generating an analog error signal based on the switching voltage, the output voltage, the pulse width modulation centering signal and a reference; and a pulse width modulated signal generator operatively connected to the spread spectrum clock signal generator, the error amplifier and the switching power converter to generate a pulse width modulation signal to control the switch of the switching power converter therefrom based on the pulse width modulation centering signal and the analog error signal.