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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:

Class Number Class Name Patents
330/268 To eliminate crossover distortion 103


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8692179 Optical communication system using grounded coplanar waveguide Apr. 8, 2014
8665023 Class-AB/B amplifier with quiescent control circuit Mar. 4, 2014
8624673 Self-biasing radio frequency circuitry Jan. 7, 2014
8552802 Amplifying circuit and current-voltage conversion circuit Oct. 8, 2013
8547175 Output circuit Oct. 1, 2013
8536947 Class AB amplifier with resistive level-shifting circuitry Sep. 17, 2013
8502605 Acoustic pseudo-triode characteristic amplification device and acoustic pseudo-triode characteristic push-pull amplification device Aug. 6, 2013
8497736 Direct DC coupled push-pull BJT driver for power amplifier with built-in gain and bias current signal dependent expansion Jul. 30, 2013
8493051 Fast-settling precision voltage follower circuit and method Jul. 23, 2013
8487687 Output buffer circuit and method for avoiding voltage overshoot Jul. 16, 2013
8441319 Method and apparatus for biasing rail to rail DMOS amplifier output stage May. 14, 2013
8405460 Circuitry for biasing amplifiers Mar. 26, 2013
8400221 Method and apparatus for biasing an amplifier Mar. 19, 2013
8373505 Dynamic current boost in class AB amplifier for low distortion Feb. 12, 2013
8354886 Arrangement for calibrating the quiescent operating point of a push-pull amplifier Jan. 15, 2013
8331893 Receiver having a gain-controllable input stage Dec. 11, 2012
8310307 Amplifying circuit Nov. 13, 2012
8294518 Class-AB/B amplifier and quiescent control circuit for implementation with same Oct. 23, 2012
8193863 Push-pull output circuit Jun. 5, 2012
8159304 Apparatus and method for feed-forwarding in a current-feedback amplifier Apr. 17, 2012
8130038 Class AB operational amplifier and output stage quiescent current control method Mar. 6, 2012
8031002 Buffer amplifier Oct. 4, 2011
7999618 High bandwidth, rail-to-rail differential amplifier with output stage amplifier Aug. 16, 2011
7948316 Low bias current amplifier May. 24, 2011
7944302 Method and apparatus for biasing an amplifier May. 17, 2011
7936217 High-linearity complementary amplifier May. 3, 2011
7920025 Operational amplifier and method of driving liquid crystal display Apr. 5, 2011
7907013 Class AB output stage with programmable bias point control Mar. 15, 2011
7872531 Amplifier bias techniques Jan. 18, 2011
7834699 Audio compensation method and audio apparatus with class AB power amplifier Nov. 16, 2010
7825732 Compensation for amplifiers driving a capacitive load Nov. 2, 2010
7800447 Operational amplifier with improved current monitoring and scalable output Sep. 21, 2010
7786804 Driving amplifier circuit with digital control and DC offset equalization Aug. 31, 2010
7772926 Setting the DC operating current of a rail-to-rail output stage of an op-amp Aug. 10, 2010
7764123 Rail to rail buffer amplifier Jul. 27, 2010
7733182 Hybrid class AB super follower Jun. 8, 2010
7728670 Method and apparatus for an amplifier Jun. 1, 2010
7710200 Output buffer and power amplifier comprising thereof May. 4, 2010
7667540 Class-AB driver design with improved frequency response Feb. 23, 2010
7646244 Apparatus and method for unity gain buffer with high switching speed and low quiescent current Jan. 12, 2010
7642853 High-swing operational amplifier output stage using adaptive biasing Jan. 5, 2010
7629849 Driving amplifier circuit with digital control Dec. 8, 2009
7626458 Common-mode bandwidth reduction circuit and method for differential applications Dec. 1, 2009
7619476 Biasing stage for an amplifier Nov. 17, 2009
7595625 Current mirror Sep. 29, 2009
7595690 Voltage-clamping device and operational amplifier and design method thereof Sep. 29, 2009
7583148 Transconductance control circuit, method of controlling transconductance, and a power amplifier Sep. 1, 2009
7567628 Symmetric differential slicer Jul. 28, 2009
7557658 Low voltage amplifier having a class-AB control circuit Jul. 7, 2009
7548114 Apparatus for slew rate enhancement of an operational amplifier Jun. 16, 2009

1 2 3 4 5 6 7 8










 
 
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