Continuous electric power supply circuit regulated by a reversib

Details Continuous electric power supply circuit regulated by a reversib Continuous electric power supply circuit regulated by a reversib

1997-07-11

1999-01-19

Nguyen, Matthew

Electric power conversion systems

Current conversion

Including automatic or integral protection means

H02M 710

Patent

active

058620460

ABSTRACT:
This invention provides protection against power supply failure, in particular of electronic circuits of timepieces powered by photovoltaic batteries. The invention comprises a continuous electric power supply comprising: an electrical continuous source (G) coupled to a power output (VDD, GND); energy storing means (6); and a reversible dc/dc electric converter (5) coupled both to the power output (VDD, GND) and to the energy storing means (6). The converter (5) comprises switching means (T1, T2, T3, T4) for modifying its configuration. The power supply storing means (6) comprise essentially a capacitor (C). Preferably, the reversible converter (5) is a dc/dc converter, the converter being a voltage multiplier in a first configuration and being a voltage divider in a second configuration.

REFERENCES:
patent: 4279010 (1981-07-01), Morihisa
patent: 4451743 (1984-05-01), Suzuki et al.
patent: 4908523 (1990-03-01), Snowden et al.
Patent Abstracts of Japan vol. 018, No. 332 (E-1567), 23 Jun. 1994 & JP 06 078473A (Japan Storage Battery Co Ltd; Others:01), 18 Mar. 1994.
Patent Abstracts of Japan vol. 018, No. 515 (E-1611), 28 Sep. 1994 & JP 06 178461A (Japan Storage Battery Co Ltd), 24 Jun. 1994.
Patent Abstracts of Japan, vol. 096, No. 003, 29 Mar. 1996 & JP 07 298516A (Yuasa Corp), 10 Nov. 1995.
Patent Abstracts of Japan vol. 095, No. 006, 31 Jul. 1995 & JP 07 059271A (S II Project KK), 3 Mar. 1995.

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