Method for pulsed charging of a battery in a standalone system comprising a supercapacitor

摘要

The method involves determining dynamic internal resistance of a battery (1) by a charge controlling circuit (3) from measured amplitudes of current pulse and voltage rise at terminals of the battery. A maximal current threshold acceptable by the battery is determined based on a predefined maximal voltage threshold, the resistance and open circuit voltage at the terminals. Value of charging current of the battery is limited to a value less than the maximal current threshold by controlling closing duration of an electronic interrupter (5), during a subsequent current pulse.