Low power consumption switching device for power source

Details Low power consumption switching device for power source Low power consumption switching device for power source

1998-03-18

1999-06-08

Wells, Kenneth B.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327530, G05F 110

Patent

active

059107502

ABSTRACT:
In order to reduce power consumption of the electronic device while it is inactive, the main switch 32 is shifted to the non-conductive state when the electronic device driven by the battery is stopped and the actuating signal decreases below a predetermined voltage, the actuating signal representing the state where the device is in operation. Thus, the power supplied to the control circuit or the like of the electronic device from the battery becomes zero, should a leak current or the like is ignored, and the power consumption can be reduced. In order to start the electronic device, the switch 34 is turned on and the main switch 32 is forced to the conductive state. That is, when the electronic device is started and the actuating signal exceeds the predetermined voltage, the main switch 32 becomes conductive and the electronic device receives power from the battery. In this state, even if the switch 34 is opened, the main switch 32 still remains conductive unless the actuating signal is stopped. Repeated, the main switch 32 is non-conductive while the electronic device is inactive, so that the waste of power of the battery can be prevented.

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patent: 5812386 (1998-09-01), Youn
patent: 5969465 (1998-12-01), Ishizuka

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