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Class Information
Number: 330/267
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including push-pull amplifier > Having complementary symmetry > And particular biasing arrangement
Description: Subject matter with specific details or distinctive characteristics of the biasing means applied to the amplifying device.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7411455 |
High output current buffer |
Aug. 12, 2008 |
| 7405622 |
Operational amplifier with less offset |
Jul. 29, 2008 |
| 7405624 |
Class AB source follower |
Jul. 29, 2008 |
| 7403072 |
Integrated circuit devices having a control circuit for biasing an amplifier output stage and methods of operating the same |
Jul. 22, 2008 |
| 7394316 |
High speed, high current gain voltage buffer and method |
Jul. 1, 2008 |
| 7372333 |
Monolithic supply-modulated RF power amplifier and DC-DC power converter IC |
May. 13, 2008 |
| 7362176 |
High efficiency linear amplifier |
Apr. 22, 2008 |
| 7304538 |
Accurate quiescent current control scheme in floating controlled class AB amplifier |
Dec. 4, 2007 |
| 7298211 |
Power amplifying apparatus |
Nov. 20, 2007 |
| 7271653 |
Amplifier with a voltage-controlled quiescent current and output current |
Sep. 18, 2007 |
| 7253685 |
Class AB amplifier having adjustable quiescent current and output current |
Aug. 7, 2007 |
| 7224227 |
Apparatus and method for correction of error caused by reverse saturation current mismatch |
May. 29, 2007 |
| 7199657 |
Amplification gain stages having replica stages for DC bias control |
Apr. 3, 2007 |
| 7193459 |
Power amplifier control technique for enhanced efficiency |
Mar. 20, 2007 |
| 7164317 |
Apparatus and method for a low-voltage class AB amplifier with split cascode |
Jan. 16, 2007 |
| 7135927 |
Ultra fast, low noise operational amplifier with dynamic biasing |
Nov. 14, 2006 |
| 7113041 |
Operational amplifier |
Sep. 26, 2006 |
| 7102440 |
High output current wideband output stage/buffer amplifier |
Sep. 5, 2006 |
| 7091787 |
Transconductance amplifier with temperature sensitive current limiting |
Aug. 15, 2006 |
| 7078973 |
Bipolar rail-to-rail output stage |
Jul. 18, 2006 |
| 7030696 |
Differential amplifier and semiconductor device |
Apr. 18, 2006 |
| 7009451 |
Image display apparatus and high voltage driver circuit |
Mar. 7, 2006 |
| 7009450 |
Low distortion and high slew rate output stage for voltage feedback amplifier |
Mar. 7, 2006 |
| 6954105 |
Disk drive and error amplifier therefor and related methods |
Oct. 11, 2005 |
| 6940353 |
High frequency power amplifier |
Sep. 6, 2005 |
| 6933784 |
Output stage for high gain and low distortion operational amplifier |
Aug. 23, 2005 |
| 6922105 |
Operational amplifier |
Jul. 26, 2005 |
| 6914486 |
System and method for improved bias matching |
Jul. 5, 2005 |
| 6903610 |
Operational amplifying circuit and push-pull circuit |
Jun. 7, 2005 |
| 6903609 |
Operational amplifier |
Jun. 7, 2005 |
| 6897729 |
Self-calibrating gain control circuit for low noise amplifier |
May. 24, 2005 |
| 6882225 |
Multi-stage power amplifier for audio frequencies |
Apr. 19, 2005 |
| 6879213 |
Rail to rail class AB output for an amplifier |
Apr. 12, 2005 |
| 6870426 |
Output stage, amplifier and associated method for limiting an amplifier output |
Mar. 22, 2005 |
| 6864747 |
Amplifier device with an adjustable operating-control |
Mar. 8, 2005 |
| 6842525 |
Signal amplification circuit and process for neutralizing noise from a power supply voltage |
Jan. 11, 2005 |
| 6794943 |
Ultra linear high speed operational amplifier output stage |
Sep. 21, 2004 |
| 6784738 |
Method and apparatus for gain control in a CMOS low noise amplifier |
Aug. 31, 2004 |
| 6784739 |
Class AB amplifier circuit |
Aug. 31, 2004 |
| 6781442 |
Self-bias adjustment circuit |
Aug. 24, 2004 |
| 6774723 |
Output stage with stable quiescent current |
Aug. 10, 2004 |
| 6714076 |
Buffer circuit for op amp output stage |
Mar. 30, 2004 |
| 6703900 |
Fast, stable overload recovery circuit and method |
Mar. 9, 2004 |
| 6670851 |
Cascode amplifier integrated circuit with frequency compensation capability |
Dec. 30, 2003 |
| 6657495 |
Operational amplifier output stage and method |
Dec. 2, 2003 |
| 6657496 |
Amplifier circuit with regenerative biasing |
Dec. 2, 2003 |
| 6636117 |
Input/output buffer incorporating filter for powerline communications line |
Oct. 21, 2003 |
| 6630866 |
High beta output stage for high speed operational amplifier |
Oct. 7, 2003 |
| 6624701 |
Current amplifier |
Sep. 23, 2003 |
| 6624700 |
Radio frequency power amplifier for cellular telephones |
Sep. 23, 2003 |
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