Battery charging circuit for charging NIMH and NICD batteries

Details Battery charging circuit for charging NIMH and NICD batteries Battery charging circuit for charging NIMH and NICD batteries

1994-02-03

1996-02-06

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 20, 320 22, 320 23, 320 35, 320 39, H02J 704

Patent

active

054898366

ABSTRACT:
An improved battery charging circuit provides a single circuit for charging both Ni-MH and Ni-Cd batteries. Separate circuits are provided for sensing an end of charge sequence for both battery types. Both circuits operate simultaneously, and one circuit will generate and end of charge signal when a battery corresponding to its type is fully charged. When either circuit signals that a sequence is complete, charging ends. This provides for charging either type of battery without the necessity for determining the type of battery being charged.

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International Conference On Consumer Electronics, 2 Jun. 1992, Rosemont, Illinois, pp. 414-415, "Versatile Battery Management ic for NiCd and NiMH Charging Systems".
Electronic Design, vol. 41, No. 14, 8 Jul. 1993, Hasbrouck Heights, New JMersey, pp. 47-61, "Battery Based Systems Demand Unique ICs".
Electronique Radio Plans, No. 543, Feb. 1993, Paris France, pp. 57-64, "Les Circuits Integres Pour Chargeurs Rapides".

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