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Class Information
Number: 330/265
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including push-pull amplifier > Having complementary symmetry > And feedback means
Description: Subject matter wherein a portion of the amplifier stage output signal is returned to the input of the amplifier.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7432764 |
Push-pull amplifier with transformational negative feedback |
Oct. 7, 2008 |
| 7368992 |
Load-invariant amplifier |
May. 6, 2008 |
| 7348850 |
Electronic circuit for amplification of a bipolar signal |
Mar. 25, 2008 |
| 7321752 |
Linear amplification arrangement with non-linear amplifier element for a mobile radio device |
Jan. 22, 2008 |
| 7242250 |
Power amplifier |
Jul. 10, 2007 |
| 7164317 |
Apparatus and method for a low-voltage class AB amplifier with split cascode |
Jan. 16, 2007 |
| 7119611 |
On-chip calibrated source termination for voltage mode driver and method of calibration thereof |
Oct. 10, 2006 |
| 7088182 |
Class AB output stage circuit with stable quiescent current |
Aug. 8, 2006 |
| 6970044 |
Audio signal amplifier circuit and electronic apparatus having the same |
Nov. 29, 2005 |
| 6933785 |
Common mode bias control loop for output stages |
Aug. 23, 2005 |
| 6933784 |
Output stage for high gain and low distortion operational amplifier |
Aug. 23, 2005 |
| 6809590 |
Output stage using positive feedback to provide large current sourcing capability |
Oct. 26, 2004 |
| 6801087 |
Integrated circuit with an analog amplifier |
Oct. 5, 2004 |
| 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 |
| 6741133 |
High output amplifier for stable operation |
May. 25, 2004 |
| 6717470 |
Voltage amplifier with output stages having high capacitive load tolerance |
Apr. 6, 2004 |
| 6657496 |
Amplifier circuit with regenerative biasing |
Dec. 2, 2003 |
| 6646508 |
Wide bandwidth, current sharing, MOSFET audio power amplifier with multiple feedback loops |
Nov. 11, 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 |
| 6621333 |
Circuit and method to counter offset voltage induced by load changes |
Sep. 16, 2003 |
| 6603356 |
Method and circuit for controlling quiescent current of amplifier |
Aug. 5, 2003 |
| 6593813 |
Negative feed-back amplifier and method for negative feed-back |
Jul. 15, 2003 |
| 6538514 |
Compensation method in a class-G amplifier output stage |
Mar. 25, 2003 |
| 6538590 |
Transient noise reduction circuits, systems and methods in power digital-to-analog converters |
Mar. 25, 2003 |
| 6535064 |
Current-feedback amplifier exhibiting reduced distortion |
Mar. 18, 2003 |
| 6525602 |
Input stage for a buffer with negative feed-back |
Feb. 25, 2003 |
| 6496068 |
Multi-stage amplifier circuit |
Dec. 17, 2002 |
| 6492870 |
Class AB, high speed, input stage with base current compensation for fast settling time |
Dec. 10, 2002 |
| 6483168 |
Integrated circuit having resistor formed over emitter of vertical bipolar transistor |
Nov. 19, 2002 |
| 6414549 |
Wide bandwidth, current sharing, MOSFET audio power amplifier with multiple feedback loops |
Jul. 2, 2002 |
| 6377126 |
Current feedback amplification circuit and associated process |
Apr. 23, 2002 |
| 6314523 |
Apparatus for distributing power to a system of independently powered devices |
Nov. 6, 2001 |
| 6285256 |
Low-power CMOS voltage follower using dual differential amplifiers driving high-current constant-voltage push-pull output buffer |
Sep. 4, 2001 |
| 6268770 |
Wide bandwidth, current sharing, MOSFET audio power amplifier with multiple feedback loops |
Jul. 31, 2001 |
| 6194966 |
Cmos class ab operational amplifier operating from a single 1.5v cell |
Feb. 27, 2001 |
| 6184750 |
Control circuit driven by a differential input voltage and method for controlling same |
Feb. 6, 2001 |
| 6064434 |
Beam current measurement |
May. 16, 2000 |
| 6043691 |
Pulse shaper circuit |
Mar. 28, 2000 |
| 5973564 |
Operational amplifier push-pull output stage with low quiescent current |
Oct. 26, 1999 |
| 5973563 |
High power output stage with temperature stable precisely controlled quiescent current and inherent short circuit protection |
Oct. 26, 1999 |
| 5963094 |
Monolithic class AB shunt-shunt feedback CMOS low noise amplifier having self bias |
Oct. 5, 1999 |
| 5907262 |
Folded-cascode amplifier stage |
May. 25, 1999 |
| 5825247 |
Electric power amplifier and method for its operation |
Oct. 20, 1998 |
| 5815040 |
Wide bandwidth, current sharing, MOSFET audio power amplifier with multiple feedback loops |
Sep. 29, 1998 |
| 5786731 |
Class AB complementary transistor output stage having large output swing and large output drive |
Jul. 28, 1998 |
| 5768399 |
Low distortion amplifier |
Jun. 16, 1998 |
| 5760649 |
Buffer amplifier with output non-linearity compensation and adjustable gain |
Jun. 2, 1998 |
| 5745587 |
Hearing aid amplifier circuitry |
Apr. 28, 1998 |
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