Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1996-07-31
1998-07-14
Tso, Edward
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 7, 320 15, 320 16, H01M 1046, H01M 1044
Patent
active
057809917
ABSTRACT:
A charging apparatus with multiple charge stations is disclosed. The apparatus includes a single power supply which operates under the control of a microprocessor to charge a plurality of battery packs disposed in respective charging stations. Associated with each charging station is a wiring harness assembly which includes an EEPROM memory chip having one or more stored charging algorithms for the type or types of battery packs to be charged at that charging station. The microprocessor reads the charging algorithm from a charging station's memory chip when a battery pack is inserted in the charging station. The microprocessor utilizes a feedback control loop including a resistor network to regulate the charging current and charging voltage supplied to each battery pack being charged. If a plurality of Li-Ion battery packs are disposed in respective charging stations, each pack is sequentially charged such that the voltage across the pack is raised to the rated output voltage of the pack. Then, all of the Li-Ion battery packs are charged in parallel until each is fully charged. The parallel charging reduces total charging time.
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P. 41 of an unknown publication describing various charging methods including cell voltage detection for charging cells, date unknown.
Sixteen page product specification No. LT1511 published by Linear Technology, Constant-Current/Constant-Voltage 3A Battery Charger with Input Current Limiting, published Oct., 1995.
Brake Clifford
Leppo Lee
Telxon Corporation
Tso Edward
LandOfFree
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