Electricity: battery or capacitor charging or discharging – Battery or cell discharging – With charging
Patent
1999-10-29
2000-12-05
Tso, Edward H.
Electricity: battery or capacitor charging or discharging
Battery or cell discharging
With charging
307 66, H01M 1044, H01M 1046
Patent
active
061571687
ABSTRACT:
A secondary power supply with a battery charging circuit for use with a primary power supply having an AC power relay coupled to a AC power source and a DC/DC power converter is disclosed. The secondary power supply includes a battery bank having positive and negative terminals, wherein the negative terminal is coupled to a negative power rail of the primary power supply. An auxiliary switch in the AC power relay, having first and second contacts coupled to the positive terminal of the battery bank and a positive power rail of the primary power supply, respectively, is closed in response to a loss of the AC power source. A battery charger circuit, coupled to the auxiliary switch and the battery bank, utilizes a voltage output from the DC/DC power converter to regulate charging of the battery bank. The battery charger circuit, in one embodiment, includes a regulation circuit that senses a plurality of electrical characteristics of the battery bank and, in response thereto, generates a control signal. Next, a drive circuit, coupled to the regulation circuit, receives the control signal and, in response thereto, selectively couples the battery bank to a DC power rail of the power supply.
REFERENCES:
patent: 4200830 (1980-04-01), Oughton et al.
patent: 4258304 (1981-03-01), Bourke
patent: 4366390 (1982-12-01), Rathmann
patent: 4607208 (1986-08-01), Vreeland
patent: 4827151 (1989-05-01), Okado
patent: 5126585 (1992-06-01), Boys John T.
patent: 5247205 (1993-09-01), Mototani et al.
patent: 5581171 (1996-12-01), Kerfoot et al.
patent: 5689412 (1997-11-01), Chen
patent: 5764030 (1998-06-01), Gaza
patent: 5773963 (1998-06-01), Blanc et al.
patent: 5909360 (1999-06-01), Lavin et al.
"Personal Computer System Smartswitch Battery Backup Controller", IBM Technical Disclosure Bulletin, vol. 32, No. 5B, Oct. 1989, p. 70-71.
"Uninterruptable Power Source", Chorpenning, JS, http://infogate.ibm.com, Jul. 14, 1999 3:06pm, p. 1 of 2.
Bogdon Bernard D.
Dillon Andrew
International Business Machines - Corporation
Tso Edward H.
LandOfFree
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