Patent ID: 6580593
Filing Date: 2003-06-17
Classification: H02H,H02M

Abstract:
A power supply circuit, comprising:a first terminal to be coupled to an energy transfer element having an energy transfer element input and output, the energy transfer element input coupled to a first terminal of a power supply input; a second terminal to be coupled to a second terminal of the power supply input; a third terminal to be coupled to receive at least feedback information of a power supply output; a control circuitry coupled to the first, second and third terminals, the control circuitry to control power delivered to the power supply output from the power supply input in response to said at least feedback information of the power supply output; and an auto-restart circuit coupled to the third terminal and the control circuitry, the auto-restart circuit coupled to the control circuitry to repeatedly enable and disable the power supply during a fault condition, wherein a duration of at least one disable period following a detection of a fault condition of the power supply is smaller than durations of subsequent disable periods.