Current generator

Details Current generator Current generator

2008-09-04

2010-06-01

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S541000, C323S314000, C323S316000

Reexamination Certificate

active

07728654

ABSTRACT:
A current generator, including a chopper stabilization operational amplifier, a transistor, and an impedance unit is provided. The chopper stabilization operational amplifier includes a first input terminal, a second input terminal, and an output terminal. The transistor includes a gate coupled to the output terminal of the chopper stabilization operational amplifier, a first source/drain coupled to the first input terminal of the chopper stabilization operational amplifier, and a second source/drain serving as a current output terminal of the current generator. The impedance unit includes a first terminal coupled to the first source/drain of the transistor, and a second terminal coupled to a first voltage.

REFERENCES:
patent: 4317054 (1982-02-01), Caruso et al.
patent: 6570436 (2003-05-01), Kronmueller et al.
patent: 6734723 (2004-05-01), Huijsing et al.
patent: 7208931 (2007-04-01), Aota
patent: 7292095 (2007-11-01), Burt et al.
patent: 7463082 (2008-12-01), Chen
patent: 7560979 (2009-07-01), Hsu et al.

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