Patent ID: 7586761
Filing Date: 2009-09-08
Classification: H02M

Abstract:
1. A converter having a plurality of channels and comprising: a transformer comprising a primary winding and at least one secondary winding; first switch means connected to the primary winding, the first switch means serving to chop a substantially DC voltage in compliance with a first squarewave periodic signal so as to form an input signal, the input signal presenting a positive sequence phase and a freewheel phase; second switch means at the input of one of the channels, the second switch means serving to chop an output signal at the secondary winding corresponding to said channel in compliance with a second squarewave periodic signal; measurement means connected to the primary winding for measuring a primary current at distinct times during the positive sequence phase of the input signal to obtain a plurality of measured values; storage means for storing said plurality of measured values of the primary current; and processor means for processing said plurality of measured values of the primary current in order to evaluate the secondary current flowing in each of said plurality of channels.