Patent ID: 7952895
Filing Date: 2011-05-31
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 to be coupled to the control circuit to regulate a flow of energy to a power converter output in response to an energy requirement of one or more loads to be coupled to the power converter output; and an unregulated dormant mode control circuit coupled to render dormant the drive signal generator thereby ceasing the regulation of the flow of energy to the power converter output by the drive signal generator when the energy requirement of the one or more loads falls below a threshold, the drive signal generator coupled to be unresponsive to changes in the energy requirements of the one or more loads when dormant, the unregulated dormant mode control circuit coupled to power up the drive signal generator after a period of time has elapsed, the drive signal generator coupled to again be responsive to changes in the energy requirement of the one or more loads after the period of time has elapsed.