Controlling apparatus for loads

Details Controlling apparatus for loads Controlling apparatus for loads

1997-04-18

1999-04-27

Gaffin, Jeffrey

Electrical transmission or interconnection systems

Plural load circuit systems

Selectively connected or controlled load circuits

307 41, 358296, H02J 100

Patent

active

058982337

ABSTRACT:
A control apparatus controls power supply to a first load which generates a higher counterelectromotive force upon interruption of power supply and a second load which generates a lower counterelectromotive force upon interruption of power supply. The control apparatus includes a CPU of a facsimile machine for example. Before interrupting power supply to the first load, the CPU determines whether or not the second load is under power supply. When the second load is determined to be under power supply, the CPU immediately interrupts power supply to the first load. When the second load is determined not to be under power supply, the CPU first starts power supply to the second load and subsequently interrupts power supply to the first load.

REFERENCES:
patent: 5502546 (1996-03-01), Muto
patent: 5530556 (1996-06-01), Miura et al.
patent: 5691630 (1997-11-01), Chosa

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