Circuits for quiescent current control

Details Circuits for quiescent current control Circuits for quiescent current control

2007-05-14

2008-12-30

Choe, Henry K (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

C330S269000

Reexamination Certificate

active

07471151

ABSTRACT:
A circuit capable of quiescent current control, the circuit comprising a first operational transconductance amplifier (OTA) including a first output terminal, a first transistor including a first gate coupled to the first output terminal of the first OTA, a second OTA including a second output terminal, a second transistor including a second gate coupled to the second output terminal of the second OTA, a resistive load including a first terminal coupled to the first output terminal and the first gate, and a second terminal coupled to the second terminal and the second gate, a first current source capable of providing a first current flowing toward the first terminal of the resistive load, and a second current source capable of providing a second current flowing away from the second terminal of the resistive load.

REFERENCES:
patent: 4356453 (1982-10-01), Sueyoshi
patent: 4963837 (1990-10-01), Dedic
patent: 5621357 (1997-04-01), Botti et al.
patent: 6255909 (2001-07-01), Muza

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