Patent ID: 6072709
Filing Date: 2000-06-06
Classification: H02M

Abstract:
A voltage converter for converting an input voltage into at least two output voltages, comprising:an input resonant circuit which includes a primary winding of a transformer and which receives the input voltage applied in periodically recurrent time intervals,at least first and second output circuits, each of which includes a secondary winding or a part of a secondary winding of the transformer and from which respective first and second output voltages can be derived, the first output circuit having a parallel capacitance of the secondary winding,the first output voltage supplied by the first output circuit constituting a high voltage and the second output voltage constituting a lower voltage with respect to said high voltage,the second output circuit comprising a rectifier arrangement for supplying a DC output voltage,an additional capacitance parallel to the secondary winding of the transformer in the second output circuit, the additional capacitance being dimensioned such that its value transformed to the primary side of the transformer essentially corresponds to the value, transformed to the primary side, of the parallel capacitance of the transformer secondary winding in the first output circuit.