Circuit arrangement and method for pulsated charging of batteries

Abstract

A circuit arrangement for pulsated charging of batteries that comprises: an alternating current source that has a predetermined inductance; a pair of bridge branches each comprising a parallel arrangement of a capacitor and a semiconductor switch element being preferably a diode or a thyristor, and the branches are connected to respective ones of the terminals of the source in such a way that the semiconductor elements in both branches are connected with similar electrodes to the associated one of the terminals; and a rectifier with alternative current terminals connected to the free ends of the bridge branches and with direct current terminals connected to the battery to be charged. A method for pulse charging batteries by using an alternating current source has also been provided which is characterized by the steps of modifying the increasing portions of the charging pulses by the addition of energy stored in reactive elements to increase in a larger extent relative to the rate of increase of said source and the decreasing portions to decrease more rapidly relative to the rate of decrease of the source.

Dependencies are inferred from the claim text.