Power control circuit for a battery operated device

Details Power control circuit for a battery operated device Power control circuit for a battery operated device

1997-01-14

1998-08-04

Vo, Nguyen

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455575, 455343, H04B 138, H04M 100

Patent

active

057909610

ABSTRACT:
A circuit is disclosed for switching power to a battery operated device, particularly a portable radio transceiver. The power control circuit uses an on/off switch that remains in a fixed "on" or "off" position instead of using a momentary push button switch. The circuit allows powering down the radio to prevent deep discharging of the battery even though the switch remains in the "on" position. Also, the circuit allows the radio to continue to be powered up under microprocessor control after the switch is placed in the "off" position.

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