Smoke detector with capacitor back-up

Details Smoke detector with capacitor back-up Smoke detector with capacitor back-up

H - Electricity

02

J

H02J 15/00 (2006.01) H02J 9/06 (2006.01)

Patent

CA 2077228

ABSTRACT A power supply circuit for use in an alarm circuit powered by an AC source, comprising a large capacitor intermediate the alarm circuit and the AC source for receiving and storing electrical charge from the AC source and discharging in the event of failure of the AC source thereby powering the alarm circuit.

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