Electric power conversion systems – Phase conversion without intermediate conversion to d.c. – By dynamoelectric machine converter
Patent
1994-10-18
1997-05-13
Shah, Alpesh M.
Electric power conversion systems
Phase conversion without intermediate conversion to d.c.
By dynamoelectric machine converter
363 73, 363164, 363178, 363 32, 322 28, 322 29, 322 44, 322 46, 322 71, 322100, H02P 904, G06F 1130
Patent
active
056301553
ABSTRACT:
An embodiment of the the present invention is a computer system comprised of a main computer circuit having an interruptible CPU, a control program stored in memory connected to the CPU with interrupt procedures, and a power supply that has a mainspring and winder, a generator, a regulator, a power supply, and an internal battery. The power supply is able to accept electrical power from the generator-regulator combination, house current (line voltage) through a standard outlet plug, and the battery. A user is able to input his own kinetic energy into the system by turning a winding key. The action is similar to winding up a large windup alarm clock. A pair of detectors connected to the mainspring sense when the mainspring is fully wound and when it is almost unwound. The unwound condition will interrupt the CPU and one of the interrupt procedures will bring the system to a controlled shut-down. The fully-wound condition will cause the system to be re-enabled to run normally. Both the line voltage and hand-cranking of the mainspring can alternatively be used to recharge the battery.
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Karaki Nobuo
Miyazawa Osamu
Nguyen Dzung C.
Seiko Epson Corporation
Shah Alpesh M.
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