Amplifiers – With semiconductor amplifying device – Including frequency-responsive means in the signal...
Patent
1989-11-06
1991-02-19
Mottola, Steven
Amplifiers
With semiconductor amplifying device
Including frequency-responsive means in the signal...
330166, 330306, H03F 3191
Patent
active
049947613
ABSTRACT:
A two-stage, interstage transformer-coupled amplifier is provided with a degeneration resistor coupled between the collector of the first stage transistor and the power supply to limit the power dissipated in the first stage transistor. The first and second stages are coupled to ground through capacitor/inductor circuits to eliminate signal noise in the supply voltage. The output is filtered to remove harmonics and provide output impedance matching.
REFERENCES:
patent: 3386045 (1968-05-01), Crothers
patent: 3927380 (1975-12-01), Zaleski
patent: 4879525 (1989-11-01), Larkin
patent: 4890069 (1989-12-01), Duffalo et al.
Handy Robert M.
Motorola Inc.
Mottola Steven
Warren Raymond J.
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