Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1988-07-21
1989-07-11
Hickey, R. J.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
323907, H02J 710, G05F 158
Patent
active
048475475
ABSTRACT:
A battery charger supplies to a battery an output voltage having a desired temperature coefficient of voltage. The charger includes an operational amplifier having a summing junction to which a reference current and a feedback signal derived from the amplifier output are supplied. The V.sub.be multiplier circuit includes a bipolar transistor which is biased into its active region so that the charging voltage supplied by the amplifier is temperature corrected in accordance with a negative coefficient of voltage characteristic of the transistor.
REFERENCES:
patent: 3553565 (1971-01-01), Ebbinge et al.
patent: 3919616 (1975-11-01), Allison
patent: 3967186 (1976-06-01), Adams
patent: 4250445 (1981-02-01), Brokaw
patent: 4313083 (1982-01-01), Gilbert et al.
patent: 4315209 (1982-02-01), Schmoock
Becker Stephen A.
Hickey R. J.
Ishimaru Mikio
John Fluke Mfg. Co. Inc.
Strauss Michael J.
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