Battery charge optimizing system

摘要

An optimizer circuit (24) is interposed between a DC bus (14) and a battery (18) of a power supply system, including two converters (29, 30) in parallel, one that can lower the battery voltage below the bus voltage or directly connect the bus (14) to the battery (18) and one that can raise the voltage to the battery (18) above the bus voltage. A controller (26) actuates the two converters for optimizing battery charging and maintenance and for providing the battery power to the bus (14) if other sources supplying the bus (14) are not available. <IMAGE>