Patent ID: 6958924
Filing Date: 2005-10-25
Classification: H02M

Abstract:
1. Device for reversible conversion of electrical energy, comprising: a DC voltage source ( a current source connection connecting to a current source ( at least two parallel-connected stages ( the at least two stages comprising a first stage and a last stage, each stage comprising at least two switching cells ( each switching cell comprising two switches ( each capacitor sized to maintain between homologous terminals of the two switches of each switching cell a load voltage equal to a fraction of the voltage of the DC voltage source ( control devices ( operating means ( wherein said at least two stages define two end groups of switches and at least one intermediate group of switches, the intermediate group of switches comprising switches common to two successive adjacent stages, each of the two end groups of switches comprising respectively the switches of each switching cell belonging respectively to the first and last stages, the intermediate group comprising series connected pairs of switches ( the capacitors (