RF amplifier protector and method

Details RF amplifier protector and method RF amplifier protector and method

1991-12-02

1993-03-23

Pascal, Robert J.

Amplifiers

With semiconductor amplifying device

Including protection means

330207P, 455117, H03F 152

Patent

active

051968088

ABSTRACT:
An amplifier protector and method for preventing power overload of a power amplifier and destruction of transmission circuitry and printed wiring board. The protector continually monitors the peak forward and reflected voltages of the transmitter output which are proportional to the forward and reflected power. An associated processor determines whether the forward voltage is below a threshold voltage which indicates a circuit malfunction. If the circuit malfunction is detected, the processor via an automatic level control circuit turns off the power amplifier in a timely fashion to prevent damage to the transmission circuitry.

REFERENCES:
patent: 3852669 (1974-12-01), Bowman et al.
patent: 3969683 (1976-07-01), Fabricius
patent: 4165493 (1979-08-01), Harrington
patent: 4353037 (1982-10-01), Miller
patent: 4485349 (1984-11-01), Siegel et al.
patent: 5043676 (1991-08-01), Sato et al.

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