Amplifying circuit

Details Amplifying circuit Amplifying circuit

1992-03-05

1992-12-15

LaRoche, Eugene R.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330260, 330267, H03F 316

Patent

active

051720736

ABSTRACT:
At the time of driving no load, a non-inverted input of a differential amplifier is switched from an output terminal to a reference voltage source. Thus, a constant current source circuit consisting of the reference voltage source, the differential amplifier, and an output stage transistor is provided to control an idling current flowing through output stage transistors to an appropriate level.

REFERENCES:
patent: 4866398 (1989-09-01), Gulczynski
patent: 4888559 (1989-12-01), Sevenhans et al.
patent: 4931797 (1990-06-01), Kagawa et al.
patent: 4963837 (1990-10-01), Dedic
A Highly Linear CMOS Buffer Amplifier, Fisher et al, IEEE Journal of Solid-State Circuit, vol. SC-22, No. 3, Jun. 1987.
Transconductance Amplifiers, K. Lewiss, Electronic & Wireless World, Jun. 1987.

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