Linear power amplifier utilizing current feedback

Details Linear power amplifier utilizing current feedback Linear power amplifier utilizing current feedback

1991-10-15

1993-08-24

Dwyer, James L.

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

340572, 455 41, 455121, H04B 104

Patent

active

052396967

ABSTRACT:
A transmitter for an electronic article surveillance system having a power amplifier for forming a drive signal for causing a current to flow through an antenna. The magnitude of the current flowing through the antenna is sensed and, based upon the sensed current, the drive signal is continuously controlled.

REFERENCES:
patent: 4097687 (1978-06-01), Yamaguchi
patent: 4658241 (1987-04-01), Torre
patent: 4859991 (1989-08-01), Watkins et al.
patent: 5081713 (1992-01-01), Miyazaki

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