Patent ID: 6323627
Filing Date: 2001-11-27
Classification: H02M,H05B,Y02B

Abstract:
A DC-DC voltage converter comprising:an inductance arrangement;a reactance coil, wherein:the reactance coil includes a primary winding, a secondary winding and a connecting tap between the primary winding and the secondary winding;the reactance coil is connected as a transformer to have a transformation ratio; anda DC supply voltage is supplied to the primary winding of the reactance coil over the inductance arrangement;a controllable switching transistor arrangement for turning on and off the DC supply voltage, wherein a contact gap of the controllable switching transistor arrangement is set at a reference potential at the connecting tap;an output capacitor, wherein an output voltage for a load is applicable across the output capacitor;a diode having an anode-cathode segment, wherein the anode-cathode segment of the diode and the output capacitor is set at the reference potential and is in series with the secondary winding of the reactance coil; anda capacitance arrangement arranged in parallel with the contact gap of the controllable switching transistor arrangement so that a series resonant circuit, which is operative in a turn-on phase and a turn-off phase of the controllable switching transistor arrangement, is provided by the inductance arrangement and the capacitance arrangement.