Driving circuit capable of enhancing response speed and...

Details Driving circuit capable of enhancing response speed and... Driving circuit capable of enhancing response speed and...

2011-01-04

2011-01-04

Choe, Henry K (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S129000

Reexamination Certificate

active

07863982

ABSTRACT:
A driving circuit of enhancing response speed is disclosed. The driving circuit includes an operational amplifier and a slew rate enhancement unit. The operational amplifier is utilized for generating a driving voltage according to an input voltage. The slew rate enhancement unit is coupled to the operational amplifier, and is utilized for generating a compensation current to the operational amplifier to enlarge a bias current of the operational amplifier according to voltage difference between the input voltage and the driving voltage when variation of the input voltage occurs.

REFERENCES:
patent: 6593812 (2003-07-01), Sundstrom
patent: 6597898 (2003-07-01), Iwata et al.
patent: 6683496 (2004-01-01), Poggi et al.
patent: 6745016 (2004-06-01), Iwata et al.
patent: 7339430 (2008-03-01), Chiu
patent: 7372329 (2008-05-01), Tan

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