초록 ▼

A fuel cell stand-by energy supply system is provided for supplying electrical power to a device operated by power from an electrical utility in the event of a power failure. The system is comprised of a microcontroller which is connected to a detector capable of detecting power failure. The microco

A fuel cell stand-by energy supply system is provided for supplying electrical power to a device operated by power from an electrical utility in the event of a power failure. The system is comprised of a microcontroller which is connected to a detector capable of detecting power failure. The microcontroller monitors this detector and one or more conditions of the device to which electrical power is fed. The microcontroller operates a fuel cell switch to connect the fuel cell d.c. supply directly to the d.c. device or to a voltage conditioning circuit to produce an operative a.c. supply which is connected to the device to continue operation thereof during the power failure. The microcontroller monitors and manages the load in relation to the fuel cell power. The microcontroller also performs an autodiagnostic of the fuel cell.

대표청구항 ▼

[ We claim:] [1.] A fuel cell stand-by energy supply system for supplying electrical power to a device operated by power from an electrical utility in the event of a power failure, said stand-by energy supply system comprising detection means for detecting a power failure, control circuit means for

[ We claim:] [1.] A fuel cell stand-by energy supply system for supplying electrical power to a device operated by power from an electrical utility in the event of a power failure, said stand-by energy supply system comprising detection means for detecting a power failure, control circuit means for monitoring said detection means and one or more conditions of said device, said control circuit means operating a fuel cell switch to connect a fuel cell or an integration fuel cell and battery d.c. supply directly or to a voltage conditioning circuit to produce an operative a.c. supply and for connecting said a.c. supply to said device to continue operation thereof during said power failure, said control circuit means having power sensing means and means to control the operation of said device so as to maximize the use of the power available in said fuel cell.