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Class Information
Number: 330/259
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including differential amplifier > Having d.c. feedback bias control for stabilization
Description: Subject matter including a feedback circuit for direct currents for the purpose of operating point stabilization.










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

Patent Number Title Of Patent Date Issued
8692616 Operational amplifier, analog arithmetic circuit, and analog to digital converter Apr. 8, 2014
8674766 Differential amplifier stage with integrated offset cancellation circuit Mar. 18, 2014
8593218 Fast settling low power low noise amplifier Nov. 26, 2013
8482352 Differential amplifier stage with integrated offset cancellation circuit Jul. 9, 2013
8482265 Current balance circuit utilizing multiplexers and triangular wave generators Jul. 9, 2013
8456240 Differential amplifier stage with integrated offset cancellation circuit Jun. 4, 2013
8456215 Limiting amplifier and method thereof Jun. 4, 2013
8456235 Regulator circuit Jun. 4, 2013
8432223 Differential amplifier circuit Apr. 30, 2013
8400214 Class AB output stage Mar. 19, 2013
8390742 Semiconductor integrated circuit and video signal output circuit Mar. 5, 2013
8368673 Output buffer and source driver using the same Feb. 5, 2013
8258865 Signal generating apparatus and method thereof Sep. 4, 2012
8242842 Input common mode circuit Aug. 14, 2012
8237502 Amplifier with bias stabilizer Aug. 7, 2012
8228108 High speed fully differential resistor-based level formatter Jul. 24, 2012
8195096 Apparatus and method for enhancing DC offset correction speed of a radio device Jun. 5, 2012
8183921 Offset cancellation for continuous-time circuits May. 22, 2012
8149955 Single ended multiband feedback linearized RF amplifier and mixer with DC-offset and IM2 suppression feedback loop Apr. 3, 2012
8138834 Current control circuit, class AB operational amplifier system and current control method Mar. 20, 2012
8139792 Amplifier circuits, methods of starting and stopping amplifier circuits Mar. 20, 2012
8130036 Input common mode circuit Mar. 6, 2012
8120425 System and method for common mode translation Feb. 21, 2012
8121160 Driver circuit for semiconductor laser diode driven in differential mode Feb. 21, 2012
8102211 Rail-to-rail input stage circuit with dynamic bias control Jan. 24, 2012
8098098 Amplifier circuit, integrated circuit device, and electronic instrument Jan. 17, 2012
8089323 Green technology: green circuit and device designs of green chip Jan. 3, 2012
8085093 Differentially compensated input pair Dec. 27, 2011
8076973 Fully differential amplifier with continuous-time offset reduction Dec. 13, 2011
8058929 Maintaining loop linearity in presence of threshold adjustment Nov. 15, 2011
8050642 Variable gain amplifier and receiver including the same Nov. 1, 2011
8031001 Differential amplifier, reference voltage generating circuit, differential amplifying method, and reference voltage generating method Oct. 4, 2011
8031000 Differential amplifier, sample-and-hold circuit, and amplifier circuit Oct. 4, 2011
8023911 Amplifying device and radio Sep. 20, 2011
8022728 Common-mode voltage controller Sep. 20, 2011
8022767 High-speed, multi-stage class AB amplifiers Sep. 20, 2011
7994859 High-speed, multi-stage class AB amplifiers Aug. 9, 2011
7924096 Input buffer with impedance cancellation Apr. 12, 2011
7917114 DC cancellation circuit Mar. 29, 2011
7902900 Limiting amplifiers Mar. 8, 2011
7898332 Semiconductor integrated circuit device Mar. 1, 2011
7834696 Common mode control circuitry for multi-stage operational amplifiers Nov. 16, 2010
7825729 Class AB rail-to-rail operational amplifier Nov. 2, 2010
7787853 Method and device for the reduction of the DC component of a signal transposed into baseband, in particular in a receiver of the direct conversion type Aug. 31, 2010
7782137 Differential circuit providing a function to cancel input offset voltage Aug. 24, 2010
7768352 High-speed, multi-stage class AB amplifiers Aug. 3, 2010
7768328 Semiconductor circuit Aug. 3, 2010
7764942 Tuning circuitry utilizing frequency translation of an impedance from a fixed-filter frequency response Jul. 27, 2010
7756279 Microphone preamplifier Jul. 13, 2010
7750737 Common mode stabilization in a fully differential amplifier Jul. 6, 2010

1 2 3 4 5 6 7










 
 
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