Class-A amplifier circuit having output voltage varied...

Details Class-A amplifier circuit having output voltage varied... Class-A amplifier circuit having output voltage varied...

2005-02-22

2005-02-22

Nguyen, Khanh V. (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S264000

Reexamination Certificate

active

06859100

ABSTRACT:
A class-A amplifier circuit having output voltage varied according to input voltage includes a class-A amplifier, a voltage pull-up switch level circuit, an output voltage of the class-A amplifier, a voltage pull-up switch circuit, a voltage pull-down switch level circuit, a voltage pull-down circuit, a voltage pull-down switch circuit, and a bias circuit. The circuit utilizes the voltage pull-up and the voltage pull-down circuits to enable an output voltage of the class-A amplifier to rapidly and precisely change as an input voltage changes. Moreover, the circuit utilizes the voltage pull-up and the voltage pull-down switch circuits to prevent an overshooting from occurring.

REFERENCES:
patent: 6066985 (2000-05-01), Xu
patent: 6285256 (2001-09-01), Wong
patent: 6437645 (2002-08-01), Ivanov et al.

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