Buffer circuit and driver IC

Details Buffer circuit and driver IC Buffer circuit and driver IC

2006-11-28

2006-11-28

Nguyen, Khanh Van (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S069000, C330S260000

Reexamination Certificate

active

07142055

ABSTRACT:
A load is commonly driven by means of operational amplification means which buffers an input voltage and produces an output voltage; and by means of output acceleration means which outputs a large electric current greater than the electric current output from the operational amplification means when a voltage difference of a predetermined offset voltage or more exists between the input and output voltages. As a result, when a change has arisen in the input voltage, the electric current is supplied to the load primarily from the output acceleration circuit until the difference between the input and output voltages becomes the predetermined offset voltage or less. Subsequently, the electric current is caused to flow to the load from the operational amplification means until the input and output voltages become equal to each other.

REFERENCES:
patent: 5923219 (1999-07-01), Ide et al.
patent: 6091294 (2000-07-01), Shirai et al.
patent: 6285256 (2001-09-01), Wong
patent: 6310520 (2001-10-01), Walden

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