Monolithic voltage controlled element

Amplifiers – With semiconductor amplifying device – Including differential amplifier

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Details

330261, 330285, 330257, H03F 345, H03G 310

Patent

active

045609470

ABSTRACT:
A monolithically fabricated voltage controlled element includes first and second pairs of transistors where bases of two of the transistors are connected to a reference voltage and bases of the remaining two transistors are connected to a control signal, emitters of transistors of respective pairs are connected together, where differences in collector currents between transistors of said pairs define output signals from said element, and includes circuitry providing variable compensation, user-selectable class A or class AB operation and distortion correction.

REFERENCES:
patent: 3908172 (1975-09-01), Aschermann et al.

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