Amplifiers – With semiconductor amplifying device – Including push-pull amplifier
Patent
1978-04-28
1979-08-21
Dahl, Lawrence J.
Amplifiers
With semiconductor amplifying device
Including push-pull amplifier
330 51, 330151, 330262, 330296, H03F 318
Patent
active
041654943
ABSTRACT:
A bi-state linear amplifier is provided which, in response to a first state of a control signal, functions as a linear amplifier, and in response to a second state of a control signal, is cut off to define a high output impedance. The amplifier includes a control circuit responsive to relatively low-current control signals for selectively opening and closing the internal amplification circuit of the amplifier.
REFERENCES:
patent: 3514637 (1970-05-01), Herrmann
patent: 3562656 (1971-02-01), Bateman
patent: 4085383 (1978-04-01), Palm et al.
Circuit Technology Incorporated
Dahl Lawrence J.
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