1976-11-01
1978-06-13
Griffin, Robert L.
325 18, 325144, 325186, 325492, H04B 144
Patent
active
040951847
ABSTRACT:
A power booster assembly for a transceiver including a secondary rechargeable battery which is charged by a charging circuit during the receive mode of the transceiver and is automatically switched into series with a primary power source to power the transceiver during the transmit mode. A switching circuit connects or switches the secondary battery into series with the primary power source. In a first embodiment of the invention a sampling circuit senses the presence of a radio frequency voltage during the transmit mode to accomplish the switching. In a second embodiment of the invention the sensing circuit is responsive to the power load of the transceiver during the transmit mode to accomplish the switching. An adjustable resistor compensates for the power load differentials between the transmit mode and the receiver mode for different transceiver designs in the second embodiment.
REFERENCES:
patent: 2844712 (1958-07-01), Noizeux
patent: 2896073 (1959-07-01), Westphal
patent: 3307051 (1967-02-01), Parsons
patent: 3327215 (1967-06-01), Battin et al.
patent: 3364427 (1968-01-01), Bennett
patent: 3763415 (1973-10-01), Ownby
Hochstein Peter A.
Shih Kelvin
Griffin Robert L.
Ng Jin F.
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