Electric power conversion systems – Current conversion – Using semiconductor-type converter
Patent
2000-04-13
2000-12-12
Berhane, Adolf Deneke
Electric power conversion systems
Current conversion
Using semiconductor-type converter
307 66, H02M 7155
Patent
active
061607274
ABSTRACT:
An automatic power control device has a charge battery, a voltage level circuit, a power circuit, and a first and a second photo control circuit. The voltage level circuit has an indication lamp, a switch connected with the indication lamp in parallel, two resistors respectively connected to an end of the switch, and two neon lamps connected to the two resistors, so as to turn on one or two neon lamps by turning the switch off or on thereby generating light. The first and second photo control circuits are provided for detecting the light from the neon lamps to activate the power circuit for selectively supplying power to a load and the charge battery. Each photo control circuit has a photo resistor for detecting the light. The first photo control circuit has a first relay to control the power supply of the power circuit. The second photo control circuit has a second relay for determining whether the power circuit or the charge battery supplies power.
REFERENCES:
patent: 4055789 (1977-10-01), Lasater
patent: 5705898 (1998-01-01), Yamashita et al.
patent: 5859499 (1999-01-01), McAfee et al.
patent: 5910689 (1999-06-01), Ertz, III et al.
patent: 5982098 (1999-11-01), Redgate
patent: 6037758 (2000-03-01), Perez
patent: 6038118 (2000-03-01), Guerra
patent: 6057609 (2000-05-01), Nagai et al.
Liao Kuang-Hua
Liu Shu-Chen
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