VOLTAGE REGULATOR SYSTEM FOR USE WITH FUEL CELL BATTERY

摘要

Intermittent operation of a pump feeding fuel to the battery is controlled by circuits which produce pump operation cycles at intervals determined by energy used in the load circuit as well as additional cycles if the voltage falls below a fixed limit. Compensation for the drop in concentration of the fuel as the result of recirculation of partly spent fuel is provided by lengthening the pump operation cycles or making them more frequent with respect to power energy consumption in the load, or both.