Electrical indicating circuit
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United States of America Patent
Stats
-
Dec 9, 1986
Grant Date -
N/A
app pub date -
Mar 26, 1985
filing date -
Mar 26, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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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