Load drive control apparatus having minimized power...

Details Load drive control apparatus having minimized power... Load drive control apparatus having minimized power...

2007-02-06

2007-02-06

Sircus, Brian (Department: 2836)

Electrical transmission or interconnection systems

Switching systems

Switch actuation

Reexamination Certificate

active

10606863

ABSTRACT:
In a load drive control system containing a control apparatus and a drive apparatus which drives a load in accordance with a drive control signal supplied from the control apparatus, a single signal produced from the control apparatus serves both as the drive control signal and as a power supply enabling control signal for the drive apparatus, without the need to provide an internal DC power supply in the drive apparatus. A switching element in the drive apparatus is controlled to apply a supply voltage from a drive power source to circuits in the drive apparatus only while the drive control signal is being supplied from the control apparatus.

REFERENCES:
patent: 4636711 (1987-01-01), Freymuth
patent: 6232758 (2001-05-01), Konda et al.
patent: 6778001 (2004-08-01), Mayama et al.
patent: 9-160684 (1997-06-01), None
patent: 2000-115997 (2000-04-01), None
patent: 2001-231290 (2001-08-01), None

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