Charge and discharge control circuit and chargeable power supply

Details Charge and discharge control circuit and chargeable power supply Charge and discharge control circuit and chargeable power supply

1998-05-04

2000-05-09

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

Regulated discharging

361 79, H01M 1044, H02H 318

Patent

active

060608633

ABSTRACT:
To improve operation reliability of a charge and discharge control circuit and a chargeable power supply unit using it, and to improve the life of secondary cell. In the charge and discharge control circuit of the chargeable power supply unit, the circuit surely keeps control operation during voltage of the cell falls down because of discharge current and, over-current state and over-discharge state occur at the same time. After detecting the stop of discharge current, the circuit stops control operation turning in over-discharge state so as to hold down useless power consumption

REFERENCES:
patent: 5493197 (1996-02-01), Eguchi et al.
patent: 5519563 (1996-05-01), Higashijima et al.

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