CONTROL CIRCUIT AND CONTROL METHOD

摘要

There is provided a control circuit (200) comprising: a sampling controller configured to sample an output voltage (300) of a power converter at an appropriate time slot by opening a control loop; and a soft-start circuit configured to enable soft starting of an internal soft-start reference voltage to start from the sampled output voltage and to control the internal soft-start reference voltage to a predetermined target value in order to pre-charge the output voltage close to an input voltage level, or to continue charging the output voltage to a predetermined output voltage value.