Electrical indicating circuit for a battery charger

Details Electrical indicating circuit for a battery charger Electrical indicating circuit for a battery charger

H - Electricity

02

J

320/12

H02J 7/00 (2006.01) G01R 31/00 (2006.01)

Patent

CA 1230376

: 9 : ABSTRACT OF THE DISCLOSURE In some industrial situations a battery charger is used to supply d.c. power to an electrical equipment, and a battery is connected across the output terminals of the charger so that a "back-up" supply is available if the charger should fail. An indicating circuit is used to generate a warning if an open circuit condition arises in the battery charging circuit. The indicating circuit operates by monitoring the output impedance of the battery charger. If the output impedance exceeds a threshold value the indicating circuit generates a warning signal.

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