| 摘要 |
A feedback control circuit for a power converter and a power converter system, includes a sampling network, configured to sample an input or output of the power converter, and output a first sampled signal; a filtering network, configured to receive the first sampled signal and output a second sampled signal, the filtering network filtering a ripple signal at a preset frequency out from the first sampled signal, so as to remain signals therein outside the preset frequency, while maintaining a phase delay between the second sampled signal and the first sampled signal within a preset range; a control and drive circuit, configured to receive the second sampled signal, and regulate in accordance with the second sampled signal a control signal outputted from the control and drive circuit to the power converter. |
