Malfunction prevention circuit for a battery charger

Details Malfunction prevention circuit for a battery charger Malfunction prevention circuit for a battery charger

1996-01-22

1997-07-01

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 27, 320 28, H02J 700

Patent

active

056442114

ABSTRACT:
A malfunction preventing circuit for a battery charger of a two-terminal structure comprises charging terminals between which a battery is to be attached and connected; and an attachment detecting unit of a high impedance which detects a voltage across the charging terminals, thereby detecting the attachment of the battery, a circuit for connecting a low-impedance element to an output circuit of the battery charger via a switch is disposed, and means for, when an input power (AC power) for the battery charger is supplied, causing the switch to operate so that the low-impedance element is connected to the output circuit to lower the output impedance is disposed.

REFERENCES:
patent: 4546302 (1985-10-01), Smith
patent: 4868706 (1989-09-01), Zaderej
patent: 5471128 (1995-11-01), Patino et al.
patent: 5504411 (1996-04-01), McCaleb et al.

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