Output signal control from a DAC-driven amplifier-based driver

Details Output signal control from a DAC-driven amplifier-based driver Output signal control from a DAC-driven amplifier-based driver

2005-03-08

2005-03-08

Ton, My-Trang Nu (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S104000

Reexamination Certificate

active

06864726

ABSTRACT:
An apparatus and a method to control an output signal from a DAC-driven amplifier-based driver are disclosed. The apparatus includes an amplifier and a driver. The amplifier has a negative input terminal, a positive input terminal, and a first output terminal. The driver has an input terminal and a second output terminal, the input terminal coupled to the first output terminal of the amplifier and the second output terminal coupled to the positive input terminal of the amplifier to provide a positive feedback to the amplifier. In another embodiment, the apparatus includes a first driver to drive an output signal, the first driver having a first input terminal and a first output terminal, a second driver to generate a feedback, the second driver having a second input terminal and a second output terminal, and an amplifier having a third input terminal to receive an input signal, a fourth input terminal, and a third output terminal, the third output terminal coupled to the first input terminal of the first driver and the second input terminal of the second driver, the fourth input terminal coupled to the second output terminal of the second driver.

REFERENCES:
patent: 4763021 (1988-08-01), Stickel
patent: 4864216 (1989-09-01), Kalata et al.
patent: 4943784 (1990-07-01), Rybicki
patent: 5519344 (1996-05-01), Proebsting
patent: 5739712 (1998-04-01), Fujii
patent: 5892381 (1999-04-01), Koifman et al.
patent: 6388477 (2002-05-01), Juang
patent: 6563371 (2003-05-01), Buckley et al.

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