Patent ID: 6594165
Filing Date: 2003-07-15
Classification: H02M

Abstract:
A circuit for converting an AC voltage into a DC voltage for at least one device, the circuit comprising:an AC voltage supply; a rectifier module having two inputs connected to the AC voltage supply, and two outputs connected two output lines with external terminals for coupling to at least one device; a main capacitor connected in parallel to a device to be connected between the two external terminals of the rectifier module; and at least one induction coil arranged between the AC voltage supply and the rectifier module, characterized in that the circuit further comprises: a further capacitor connected in parallel to the main capacitor between the two outputs of the rectifier module; a diode connected in one of the output lines of the rectifier module, said diode separating the main capacitor from the further capacitor; and an active converter having an input connected between the diode and one of the outputs of the rectifier module, said active converter discharging the further capacitor, at least in part, in the second half of each half-wave supplied by the AC voltage supply.