Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1979-08-13
1981-09-29
Truhe, J. V.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320DIG1, 318139, H02J 706, H02J 734
Patent
active
042925789
ABSTRACT:
A power transistor used in a chopper circuit to control field excitation of a vehicle motor when in a power mode is also used to control charging current from an a-c to d-c rectifier to the vehicle battery when in a battery charging mode. Two isolating diodes and a small high frequency filter inductor are the only elements required in the chopper circuit to reconfigure the circuit for power or charging modes of operation.
REFERENCES:
patent: 3417307 (1968-12-01), Kosa et al.
patent: 3808481 (1974-04-01), Rippel
patent: 3970912 (1976-07-01), Hoffman
patent: 4008423 (1977-02-01), Christianson et al.
patent: 4084119 (1978-04-01), Kato et al.
patent: 4091319 (1978-05-01), Nguyen
General Electric Co. Report No. SRD-78-073 (pp. 3.2-19 through 3.2-23) submitted to Dept. of Energy in 7/78.
Crouch Keith E.
Steigerwald Robert L.
Wilson James W. A.
Clouse Clifton E.
Denny James E.
Gaither Roger S.
Moose Richard M.
The United States of America as represented by the United States
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