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Class Information
Number: 330/274
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including push-pull amplifier > Having particular biasing arrangement > To eliminate crossover distortion
Description: Subject matter wherein distortion which occurs at the points of operation where the input signals cross over the zero reference points is eliminated.

Patents under this class:

Patent Number Title Of Patent Date Issued
8478210 Apparatus and method of digital predistortion for power amplifiers with dynamic nonlinearities Jul. 2, 2013
7535973 Correction method and correction loop for a complex digital signal May. 19, 2009
7368992 Load-invariant amplifier May. 6, 2008
7271655 Power amplifier end stage Sep. 18, 2007
6693490 Adjustable gain control system and method thereof Feb. 17, 2004
6630865 Push-pull amplifiers Oct. 7, 2003
6417733 High output voltage swing class AB operational amplifier output stage Jul. 9, 2002
6369653 Apparatus and methods for improved control of quiescent state of output transistors in a class AB amplifier Apr. 9, 2002
6353298 Low distortion audio range class-AB full H-bridge pre-driver amplifier Mar. 5, 2002
6292057 Output stage of an operational amplifier and method having a latchup-free sourcing current booster for driving low impedance loads Sep. 18, 2001
5952881 Power stage, particularly for an operational amplifier Sep. 14, 1999
5889433 Amplifier having a high current efficiency Mar. 30, 1999
5751555 Electronic component having reduced capacitance May. 12, 1998
5500625 Controlled current output stage amplifier circuit and method Mar. 19, 1996
5361041 Push-pull amplifier Nov. 1, 1994
5160897 Push-pull power amplifying circuit Nov. 3, 1992
5019789 Adaptive bias circuit for preventing turnoff in a push-pull stage May. 28, 1991
4803442 Low power buffer amplifier Feb. 7, 1989
4647866 Audio amplifier output stage Mar. 3, 1987
4587491 IC class AB amplifier output stage May. 6, 1986
4558288 Emitter-follower type SEPP circuit Dec. 10, 1985
4509020 Push-pull amplifier Apr. 2, 1985
4482868 Output stage for a driver circuit having low quiescent output current Nov. 13, 1984
4442409 Push-pull non-complementary transistor amplifier Apr. 10, 1984
4405902 Push-pull output stage Sep. 20, 1983
4366448 Power-amplifying circuit Dec. 28, 1982
4342966 Power amplifier circuitry Aug. 3, 1982
4336504 Push-pull output circuit Jun. 22, 1982
4316149 Power amplifier Feb. 16, 1982
4306199 Push-pull amplifier Dec. 15, 1981
4300103 Push-pull amplifier Nov. 10, 1981
4266199 Linear alternating-current amplifier May. 5, 1981
4217556 Output amplifying circuit Aug. 12, 1980
4215318 Push-pull amplifier Jul. 29, 1980
4035737 Low noise amplifier Jul. 12, 1977
RE29273 Direct-current-coupled transistor power amplifiers Jun. 21, 1977

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