Patent ID: 7038432

Claim:
A linear predictive system for a DC—DC converter, wherein said DC—DC converter is configured to generate an output signal based on duty cycle, and wherein said DC—DC converter includes a digital compensation, block configured to convert a feedback error signal into a main duty cycle signal in a first feedback loop, said linear predictive system comprising: a linear predictive controller configured to predict linear changes of said main duty cycle signal in response to changes in said output signal, and configured to produce a predictive duty cycle signal from said output signal in a second feedback loop, wherein said predictive duty cycle signal is indicative of said linear changes; a first combiner configured to subtract said predictive duty cycle signal from said main duty cycle signal to produce a duty cycle delta; a multiplier configured to multiply said duty cycle delta by a gain factor to produce a duty cycle delta sample; and a second combiner configured to add said duty cycle, delta sample to said first duty cycle signal to generate an adjusted duty cycle signal.