Automatic power control module for battery powered devices

Details Automatic power control module for battery powered devices Automatic power control module for battery powered devices

2004-01-22

2009-08-11

Owens, Douglas W. (Department: 2821)

Electric lamp and discharge devices: systems

Time-controlled

C315S20000A, C315S362000, C315S363000

Reexamination Certificate

active

07573212

ABSTRACT:
A power control module which can be used to automatically open a power circuit for electrically operated devices, particularly battery operated devices, during predetermined periods of non-use. A timer is reset by a motion detector indicating continuing use. The timer controls a transistor switch which closes and opens the power circuit as required. The timing interval can be user-selected e.g., by programming a microprocessor controller. The transition time between conductive and non-conductive states of the transistor can also be controlled to prolong the life of incandescent bulbs or other sensitive load devices.

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