ONLINE UNDERVOLTAGE AUXILIARY CHARGING CONTROL CIRCUIT AND CONTROL METHOD FOR STORAGE BATTERIES

摘要

A control method of an online undervoltage auxiliary charging control circuit for storage batteries. Each storage battery (B1, B2, … Bn) is provided with the undervoltage auxiliary charging control circuit, and a series-connection circuit structure is used among contact switch circuits (SQ) of the storage batteries. In order to enable all undervoltage storage batteries to have a chance to obtain auxiliary charging, the storage batteries that are already subjected to auxiliary charging do not obtain auxiliary charging any more within regulated time. By using the control method of the online undervoltage auxiliary charging control circuit for storage batteries, a simple structure and safety and reliability are achieved.