Patent ID: 6969980
Filing Date: 2005-11-29
Classification: H02M

Abstract:
1. A pulse width modulator operable so as to provide control signals for controlling on and off operations of a pair of switches of a passive network, a feedback voltage signal being obtained from the passive network, said pulse width modulator comprising: an amplifier module adapted to receive the feedback voltage signal, and operable so as to generate first and second non-inverted voltage signals and first and second inverted voltage signals in response to the feedback voltage signal; a comparator module including a filter module coupled between said amplifier module and said comparator module, said filter module being operable so as to attenuate high frequency components of one set of the first and second non-inverted voltage signals and the first and second inverted voltage signals; and a flip-flop having an input side that receives the first and second differential voltage signals, and an output side that provides the control signals in response to the first and second differential voltage signals.