Device for charging a secondary battery having interrupt means t

Details Device for charging a secondary battery having interrupt means t Device for charging a secondary battery having interrupt means t

1993-06-15

1995-04-18

Stephan, Steven L.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 22, 320 40, H02J 704

Patent

active

054081700

ABSTRACT:
A charging equipment for charging a secondary battery in a constant-current and constant-voltage mode, including a switching device for interrupting a charging current from flowing into the secondary battery at a predetermined period, a charging control device for controlling the operation of the switching device to control the charging, and a voltage detection device for detecting a voltage at a position near to the switching device (e.g., at the input or output side of the switching device) before the charging current is interrupted and a voltage between the switching device and the secondary battery after the charging current is interrupted, thereby calculating a voltage difference between the voltages, the charging control device controlling the operation of the switching device on the basis of the voltage difference of the voltage detection device.

REFERENCES:
patent: 4354148 (1982-10-01), Tada et al.
patent: 5175485 (1992-12-01), Joo
patent: 5179335 (1993-01-01), Nor
patent: 5237259 (1993-08-01), Sanpei
patent: 5277712 (1993-07-01), Boman

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