Charging circuit for a lead-acid storage battery

Details Charging circuit for a lead-acid storage battery Charging circuit for a lead-acid storage battery

1993-06-15

1994-12-27

Peckman, Kristine L.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 32, H02J 700

Patent

active

053768744

ABSTRACT:
A charging circuit for a lead-acid storage battery for a mobile radio transceiver which operates effectively with an input from a vehicular battery terminal that may vary over a range of 25 volts in output voltage has a control circuit for regulating the charging current connected between the charging current output and the same control input of the same pulse width modulator that is used for output voltage control. The pulse width modulator is part of an integrated circuit which includes also a d.c. to d.c. voltage converter and an output voltage regulator. A branch circuit includes a current sensing resistor (45) of less than 1 ohm. The voltage drop across said sensing resistor is too small to control a control transistor network (46, 52) and therefore a constant voltage is added thereto by a voltage adding resistor network (56, 57, 47, 48) coupled to said transistor network.

REFERENCES:
patent: 4371826 (1983-02-01), Shelly
patent: 4389608 (1983-06-01), Dahl
patent: 4656411 (1987-04-01), Carlson
patent: 4897591 (1990-01-01), Spani
patent: 5177677 (1993-01-01), Nakata et al.
patent: 5192905 (1993-03-01), Karlin et al.
patent: 5227712 (1993-07-01), Boman
MT 9002 SN Charge Unit, Robert Bosch Gmbh, Portable Telephone, Edition 1 (Oct. 1991), pp. 9-11.

Affiliated with

Also associated with

Rating

Charging circuit for a lead-acid storage battery does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Charging circuit for a lead-acid storage battery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charging circuit for a lead-acid storage battery will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-921283