Method and apparatus for discharging the capacitors of a boost converter composed of plural bridge devices

摘要

The present invention concerns a method for discharging the capacitors of a boost converter composed of a number n of bridge devices connected in series, the boost converter is connected to electric direct current providing means, each bridge device is composed of plural switches and a capacitor. The method comprises the steps of setting the switches of the bridge devices in n-1 different configurations in order to discharge the capacitors of n-1 different bridge devices within n-1 consecutive periods of time.