Dc power backup

Details Dc power backup Dc power backup

H - Electricity

02

J

H02J 9/04 (2006.01) E05F 15/12 (2006.01) H02J 7/34 (2006.01) H02J 9/06 (2006.01)

Patent

CA 2479423

A barrier movement operator with a backup source of DC power is disclosed. The power supply of the barrier movement operator sends current limited DC to the backup which uses the DC to charge a battery. The battery is in circuit at all times with the barrier movement operator power supply by means of a power diode and, when an AC mains power failure occurs, DC power is sent from the battery to power the barrier movement operator.

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