Buffer amplifier

Details Buffer amplifier Buffer amplifier

2009-07-16

2011-10-04

Nguyen, Hieu (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

C330S264000

Reexamination Certificate

active

08031002

ABSTRACT:
A buffer amplifier has high input impedance and is less affected by temperature by supplying independent bias power to each of amplification units. The buffer amplifier includes a bias supply unit supplying bias power having a preset voltage level, an amplification unit receiving preset driving power and the bias power from the bias supply unit to amplify an input signal, and a compensation unit compensating for current unbalance of the driving power supplied to the amplification unit.

REFERENCES:
patent: 5760649 (1998-06-01), Michail et al.
patent: 6657496 (2003-12-01), Chen et al.
patent: 7728670 (2010-06-01), Kim
patent: 2009/0251217 (2009-10-01), Keerti
patent: 1020040039895 (2004-05-01), None
patent: 1020070003286 (2007-01-01), None
patent: 1020080073875 (2008-08-01), None
Korean Office Action for application No. 10-2008-0122091, issued Jun. 25, 2010.

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