Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1992-03-31
1993-09-21
Hickey, R. J.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 59, 320DIG2, H02J 704
Patent
active
052472388
ABSTRACT:
A battery charging circuit is provided with a thermally controlled cut-off switch whose normally closed contacts are in series with the main terminals of a thyristor. The thyristor is switched ON on commencement of battery charging by the charging of a capacitor C1, which remains charged even when the contacts of the cut-off switch open as a result of the battery temperature rising upon completion of charging. Consequently, the thyristor remains latched OFF by the capacitor even when the contacts of the cut-off switch close, and can only be turned ON again by disconnecting the battery or power supply, disconnection of the battery or power supply causing capacitor C1 to discharge through a charge maintenance by-pass circuit connected in parallel with the thermal switch and thyristor.
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patent: 4528492 (1985-07-01), Inaniwa et al.
patent: 4623832 (1986-11-01), Fujiwara
patent: 4686444 (1987-08-01), Park
patent: 4712055 (1987-12-01), Houser, Jr.
patent: 4853607 (1989-08-01), Walter et al.
patent: 4998056 (1991-03-01), Cole
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