基于开关电阻电路的纹波估计与抵消方法及其在快速响应PFC预调节器中的应用

Power-factor-correction (PFC) preregulator commonly suffers from slow dynamic response due to the need to operate with small closed-loop bandwidth for realizing low total harmonic distortion of input current. Ripple cancellation is one of the widely adopted strategies to achieve high power factor and fast dynamic response simultaneously. The main idea is to eliminate the double-line frequency comp...