Patent ID: 8823344
Filing Date: 2014-09-02
Classification: H02M,Y02B

Abstract:
1. A control circuit comprising: a first control circuit coupled to a first switch and a second switch of a power supply, wherein the first control circuit is configured to switch the first switch and a second switch in a complementary manner in accordance with a comparison result of a first reference voltage and a voltage value of a feedback voltage corresponding to an output voltage of the power supply; a first comparison circuit configured to compare one of a voltage value of the output voltage and the voltage value of the feedback voltage with a second reference value; and a second comparison circuit configured to compare a current value of a coupling point current flowing through a point between the first switch and the second switch with a third reference value; and a second control circuit configured to disable complementary switching of the first switch and the second switch and configured to inactivate the second switch in accordance with an output signal from the first comparison circuit, wherein the second control circuit enables the disabled complementary switching in accordance with an output signal of the second comparison circuit.