Power converter and slope signal generator and slope signal generation method thereof

Abstract

This disclosure relates to a power converter, a slope signal generator and a slope signal generation method thereof. The power converter comprises an inductor and a switch transistor coupled between the input terminal and the output terminal. The slope signal generator comprises: a proportion transformation circuit, for performing proportion transformation on the current sense signal of the inductor to obtain a replicated signal; and an offset compensation circuit, for performing offset compensation on the replicated signal to obtain a slope signal, wherein the slope change of the slope signal characterizes the inductance value change of the inductor. The slope signal generator of the power converter can adaptively adjust the slope of the slope signal during the switching cycle, dynamically compensate for the fluctuation of the inductance value, improve the effect of suppressing subharmonic oscillation, thus enhancing the input and output voltage range and stability of the power converter.

Dependencies are inferred from the claim text.