ClassID:

219570

H03F2200/24 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers the supply or bias voltage or current at the source side of a FET being continuously controlled by a controlling signal

Recent Application in this class:
#1
20250343518
2025-11-06

HIGH EFFICIENCY POWER AMPLIFIER WITH DIRECT BATTERY SUPPLY CONNECTION, RADIO FREQUENCY MODULE, AND MOBILE DEVICE INCLUDING THE SAME

#2
20250183853
2025-06-05

DOHERTY AMPLIFIER CIRCUIT

#3
20240039481
2024-02-01

AMPLIFIER

#4
20240022223
2024-01-18

VARIABLE GAIN AMPLIFIER WITH SUBTHRESHOLD BIASING

#5
20230412135
2023-12-21

VARIABLE GAIN AMPLIFIER WITH SUBTHRESHOLD BIASING

#6
20230073635
2023-03-09

RADIO-FREQUENCY CIRCUIT AND COMMUNICATION DEVICE

#7
20210234514
2021-07-29

Circuits and methods to reduce distortion in an amplifier

#8
20190263712
2019-08-29

Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers

#9
20180175807
2018-06-21

LNA with programmable linearity

#10
20180034431
2018-02-01

Integrated circuit arrangement for a microphone, microphone system and method for adjusting one or more circuit parameters of the microphone system

#11
20170353165
2017-12-07

Differential amplifiers

#12
20160373077
2016-12-22

Operational amplifier circuit

#13
20160329869
2016-11-10

Amplifier with compensation of gain in low frequencies

#14
20160320781
2016-11-03

Memory effect reduction using low impedance biasing

#15
20160315593
2016-10-27

Constant transconductance bias circuit

#16
20160087589
2016-03-24

Amplifier with base current reuse

#17
20160065135
2016-03-03

High-frequency amplifier circuit

#18
20160049907
2016-02-18

Bias adjustment circuitry for balanced amplifiers

#19
20150318829
2015-11-05

Low noise amplifier for MEMS capacitive transducers

#20
20150256131
2015-09-10

Constant transconductance bias circuit

#21
20150249437
2015-09-03

Variable gain multistage amplifier and receiver

#22
20150244328
2015-08-27

PPA linearization

#23
20150145600
2015-05-28

Circuits and methods for power amplification with extended high efficiency

#24
20150123728
2015-05-07

Memory effect reduction using low impedance biasing

#25
20140333382
2014-11-13

Method and system for providing automatic gate bias and bias sequencing for field effect transistors

#26
20120194380
2012-08-02

Temperature compensating device and satellite signal receiving system

#27
20120169422
2012-07-05

Amplifier with non-linear current mirror

#28
20120139644
2012-06-07

Dual use transistor

#29
20100237948
2010-09-23

System and method for dynamic drain voltage adjustment to control linearity, output power, and efficiency in RF power amplifiers

#30
20100066454
2010-03-18

High-power common-base amplifier employing current source output bias

#31
20090289722
2009-11-26

Bonded wafer package module

#32
20090289716
2009-11-26

Amplifier circuit having dynamically biased configuration

#33
20080242257
2008-10-02

FIELD EFFECT TRANSISTOR AMPLIFIER WITH LINEARIZATION

#34
20080211583
2008-09-04

System and method for dynamic drain voltage adjustment to control linearity, output power, and efficiency in RF power amplifiers

#35
20080136524
2008-06-12

Amplifier circuit, semiconductor device, and controlling method

#36
20080030233
2008-02-07

Stacked buffers

#37
20060091956
2006-05-04

Amplifying a signal using a control modulator that provides a bias resistance

#38
20050176399
2005-08-11

Field effect transistor amplifier with linearization