ClassID:

219951

H03F2203/45292 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by; Indexing scheme relating to differential amplifiers the AAC comprising biasing means controlled by the signal

Recent Application in this class:
#1
20210273619
2021-09-02

Pre-driver stage with adjustable biasing

#2
20150349723
2015-12-03

Hybrid power amplifier having electrical and thermal conduction path

#3
20150244328
2015-08-27

PPA linearization

#4
20150200635
2015-07-16

Operational transconductance amplifier, reconfigurable fully differential voltage sensing amplifier and reconfigurable fully differential capacitive sensing amplifier

#5
20150102840
2015-04-16

Cascoded comparator with dynamic biasing for column parallel single slope ADCs

#6
20150097596
2015-04-09

Cascoded comparator with dynamic biasing for column parallel single slope ADCs

#7
20140210560
2014-07-31

Triple cascode power amplifier

#8
20140132348
2014-05-15

Differential amplifier

#9
20130324062
2013-12-05

Power detector with temperature compensation

#10
20130043877
2013-02-21

Operational amplifier with different power supply voltages

#11
20130027135
2013-01-31

Systems and methods for adaptive bias circuits for a power amplifier

#12
20120307122
2012-12-06

Low common mode driver

#13
20120194261
2012-08-02

Cascoded comparator with dynamic biasing for column parallel single slope ADCs

#14
20110204978
2011-08-25

Comparator circuit

#15
20110057727
2011-03-10

Adaptive common mode bias for differential amplifier input circuits

#16
20100213985
2010-08-26

Fast common mode feedback control for differential driver

#17
20100182087
2010-07-22

Anti-pop method and apparatus for class AB amplifiers

#18
20100164629
2010-07-01

Method and system for a highly efficient power amplifier utilizing dynamic baising and predistortion

#19
20100156683
2010-06-24

Amplifier circuit and A/D converter

#20
20100013556
2010-01-21

Transconductance amplifier

#21
20090289716
2009-11-26

Amplifier circuit having dynamically biased configuration

#22
20090256636
2009-10-15

Amplifier arrangement and method for signal amplification

#23
20090251215
2009-10-08

Amplifier output stage with extended operating range and reduced quiescent current

#24
20090243392
2009-10-01

METHODS FOR SHIFTING COMMON MODE BETWEEN DIFFERENT POWER DOMAINS AND APPARATUS THEREOF

#25
20090219095
2009-09-03

Operational transconductance amplifier (OTA)

#26
20090195313
2009-08-06

Boosted tail-current circuit

#27
20090096490
2009-04-16

Transconductor

#28
20090066416
2009-03-12

Push-pull amplifier

#29
20090058522
2009-03-05

Differential amplifier

#30
20090033425
2009-02-05

Method and system for a highly efficient power amplifier utilizing dynamic biasing and predistortion

#31
20090027126
2009-01-29

Method for adaptive biasing of fully differential gain boosted operational amplifiers

#32
20090027123
2009-01-29

Controlled transconductance differential stage

#33
20090027122
2009-01-29

Compact low-power class AB amplifier

#34
20080278233
2008-11-13

Buffer drive

#35
20080273106
2008-11-06

Class AB amplifier and imagers and systems using same

#36
20080272846
2008-11-06

Adaptive biasing input stage and amplifiers including the same

#37
20080272845
2008-11-06

Operational transconductance amplifier (OTA)

#38
20080246543
2008-10-09

Common mode feedback for large output swing and low differential error

#39
20080136526
2008-06-12

Method and system for a highly efficient power amplifier utilizing dynamic biasing and predistortion

#40
20080106337
2008-05-08

Bias current compensation circuit for a differential input stage

#41
20080036532
2008-02-14

Transmitter power amplifier working at different power supplies

#42
20080007338
2008-01-10

Regulated cascode circuit, an amplifier including the same, and method of regulating a cascode circuit

#43
20070296498
2007-12-27

High linearity low noise variable gain amplifier with continuous gain control

#44
20070285164
2007-12-13

Operational amplifier

#45
20070188232
2007-08-16

Wideband CMOS gain stage

#46
20070146008
2007-06-28

Semiconductor circuit comprising vertical transistor

#47
20070109043
2007-05-17

Operational amplifier with zero offset

#48
20070052451
2007-03-08

DIFFERENTIAL INVERTER CIRCUIT

#49
20070046374
2007-03-01

Linearity-improved differential amplification circuit

#50
20060202759
2006-09-14

Transistor biasing independent of inductor voltage drop

#51
20060001490
2006-01-05

Differential dual port current conveyor circuit

#52
20050258902
2005-11-24

Wideband CMOS gain stage

#53
20050248382
2005-11-10

Resistor compensation apparatus

#54
20050200411
2005-09-15

Differential amplifier without common mode feedback

#55
20050012526
2005-01-20

Differential inverter circuit

#56
15684034
2018-12-25

Differential amplifier with common-mode biasing technique