Patent ID: 8159839
Filing Date: 2012-04-17
Classification: H02J,H02M,Y02B,Y04S

Abstract:
1. A control circuit for use in a power converter, comprising: a drive signal generator coupled to generate a drive signal to control switching of a power switch coupled to the control circuit to regulate a flow of energy to an output of the power converter in response to an energy requirement of one or more loads coupled to the output of the power converter; a regulator circuit coupled to charge a capacitor, the capacitor to determine a time period, the regulator circuit coupled to not charge the capacitor if the energy requirement of the one or more loads coupled to the output of the power converter falls below a threshold, the regulator coupled to again charge the capacitor after the time period has elapsed; and an unregulated dormant mode control circuit coupled to render dormant the drive signal generator and the regulator circuit during the time period thereby causing regulation of the flow of energy to the output of power converter output to cease, the unregulated dormant mode control circuit further coupled to power up the drive signal generator and the regulator after the time period has elapsed.