Electric power conversion systems – Current conversion – With starting arrangement
Patent
1988-03-25
1989-07-04
Beha, Jr., William H.
Electric power conversion systems
Current conversion
With starting arrangement
363 61, 363143, H02M 710
Patent
active
048456071
ABSTRACT:
In an automatic voltage switching power source having a full-wave rectifier circuit and a voltage doubler circuit, a controller comprises a plurality of voltage level detectors which are associated with an input ac voltage and detect different voltages, and a switching signal generator which generates a delayed signal for switching between the full-wave rectifier and voltage doubler circuits based on the logical product of the outputs of the voltage level detectors, thereby preventing the electric circuit of the power source and the electric device to be supplied with the power from being damaged by excessively high voltages.
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patent: 4540892 (1985-09-01), Carvalho
patent: 4665323 (1987-05-01), Russell et al.
patent: 4780805 (1988-10-01), Chewuk et al.
patent: 4783729 (1988-11-01), Konopka
patent: 4805083 (1989-02-01), Konopka
"110 VAC/200 VAC Detector Switch," IBM Tech. Discl. Bul., vol. 27, No. 10B, pp. 6214, 6215, Mar. 1985.
"Automatic Input-Selecting Power Supply," IBM Tech. Discl. Bul., vol. 28, No. 3, pp. 1246, 1247, Aug. 1985.
Kato Noboru
Nakao Fumiaki
Beha Jr. William H.
Fuji Electrochemical Co. Ltd.
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