Patent ID: 6806694
Filing Date: 2004-10-19
Classification: H02H,H02M,Y02B,Y10S

Abstract:
A switching regulator, comprising:an intermediate circuit capacitor at which an output voltage can be tapped; a current measuring element; a diode connected to said intermediate circuit capacitor; a power switch connected to said current measuring element and connected in parallel with said intermediate circuit capacitor through said diode, said power switch controlling a charging current of said intermediate circuit capacitor; and a drive circuit receiving an intermediate circuit input voltage, the output voltage from said intermediate circuit capacitor and an output current at said current measuring element, said drive circuit controlling electrical output parameters and a power factor of the switching regulator in accordance with an adjustable desired value by controlling a duty ratio of said power switch, said drive circuit having a start circuit set up for dynamically increasing a current limiting level for said power switch during a specific start time after a switch-on instant of the switching regulator from an initially low level up to a current-limiting desired level at an end of the specific start time, without said drive circuit limiting the duty ratio of said power switch during the specific start time.