Ac driven clock timing device with auxiliary dc backup

Details Ac driven clock timing device with auxiliary dc backup Ac driven clock timing device with auxiliary dc backup

G - Physics

04

C

58/0.2

G04C 3/00 (2006.01) G04C 3/14 (2006.01) G04C 13/04 (2006.01) G04G 7/00 (2006.01) G04G 19/10 (2006.01) H04N 7/00 (2006.01)

Patent

CA 1066513

ABSTRACT OF THE DISCLOSURE Apparatus for driving a timing device from an external AC power source and, in the event that the AC power source fails, from an auxiliary DC source. The driving apparatus includes a pulse producing circuit which produces periodic pulses in response to timing pulses. A timing pulse circuit, including an oscillator which produces an oscillating voltage having a frequency substantially proportional to the AC power source frequency, applies the timing pulses to the pulse producing circuit. A DC power supply receives the voltage which is supplied by the AC power source and generates a DC energizing voltage to energize the various circuits of the apparatus, including the pulse producing circuit and the oscillator. In the event that the AC power source fails, the voltage produced by the auxiliary DC source is used to energize the various circuits of the apparatus. A storage device is included in the DC power supply for receiving and storing the generated DC energizing voltage so as to maintain a sufficient energizing voltage during the interim between the failure of the AC power source and the time that the auxiliary DC source reaches a satisfactory energizing level. A driving circuit responds to the periodic pulses produced by the pulse producing circuit to supply driving energy to the timing device. The timing device comprises a single clock or clock system or, in the alternative, a master clock which is used to drive and control one or more slave clocks.

266252

Affiliated with

Also associated with

Rating

Ac driven clock timing device with auxiliary dc backup does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ac driven clock timing device with auxiliary dc backup, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ac driven clock timing device with auxiliary dc backup will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-239591