Patent ID: 7724545
Filing Date: 2010-05-25
Classification: H02M,Y02B,Y02P

Abstract:
1. A switching converter for power factor correction comprising: input terminals for receiving an input voltage, an inductive storage element coupled to at least one of the input terminals, a rectifier arrangement, connected to the inductive storage element, having output terminals for providing an output voltage, a control arrangement configured to control a current drawn by the inductive storage element, the control arrangement configured to magnetize the inductive storage element during an actuation period for a magnetization time, demagnetize inductive storage element for a demagnetization time, and wait a waiting time before a subsequent magnetization time, a damping circuit including a damping element inductively coupled to the inductive storage element, configured to be activated and deactivated dependent at least in part on a magnetization state of the inductive storage element, the damping circuit being adapted in its activated state to draw energy from the inductive storage element.