ClassID:

219591

H03F2200/297 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers the loading circuit of an amplifying stage comprising a capacitor

Recent Application in this class:
#1
20250392259
2025-12-25

OPERATIONAL AMPLIFIER AND CURRENT INTEGRATOR USING THE SAME

#2
20250260370
2025-08-14

Cascode Amplifier Bias Circuits

#3
20250150034
2025-05-08

Body Tie Optimization for Stacked Transistor Amplifier

#4
20250080062
2025-03-06

Method for Improving Sound Play Effect and Related Apparatus

#5
20240364269
2024-10-31

Source Switched Split LNA

#6
20240348211
2024-10-17

Cascode amplifier bias circuits

#7
20240154590
2024-05-09

CASCODE AMPLIFIER WITH IMPROVED AMPLIFICATION CHARACTERISTICS

#8
20240056044
2024-02-15

PRECISION OPERATIONAL AMPLIFIER USING FLOATING INPUT STAGE

#9
20230387864
2023-11-30

Cascode amplifier bias circuits

#10
20230283237
2023-09-07

Body tie optimization for stacked transistor amplifier

#11
20220407475
2022-12-22

Switched capacitor amplifying apparatus and method having gain adjustment mechanism

#12
20220368287
2022-11-17

Cascode amplifier bias circuits

#13
20220345088
2022-10-27

Voltage control device

#14
20220006431
2022-01-06

High gain resonant amplifier for resistive output impedance

#15
20210336584
2021-10-28

Source switched split LNA

#16
20210320626
2021-10-14

Quadrature combined Doherty amplifiers

#17
20210067096
2021-03-04

Body tie optimization for stacked transistor amplifier

#18
20210036668
2021-02-04

Amplifier for driving a capacitive load

#19
20210013841
2021-01-14

Cascode amplifier bias circuits

#20
20200382070
2020-12-03

Quadrature combined doherty amplifiers

#21
20200350867
2020-11-05

Power amplifier

#22
20200168734
2020-05-28

Self-biasing and self-sequencing of depletion mode transistors

#23
20200144967
2020-05-07

Source switched split LNA

#24
20200124658
2020-04-23

Constant power circuit with variable heating and measurement current capability

#25
20200083850
2020-03-12

Control circuit with bypass function

#26
20200076387
2020-03-05

Complementary variable gain amplification

#27
20200052664
2020-02-13

MATRIX POWER AMPLIFIER

#28
20200007089
2020-01-02

Low noise differential amplifier

#29
20200005882
2020-01-02

Method and system for a track and hold amplifier with extended dynamic range

#30
20190379330
2019-12-12

Body tie optimization for stacked transistor amplifier

#31
20190372533
2019-12-05

Wideband low noise amplifier (LNA) with a reconfigurable bandwidth for millimeter-wave 5G communication

#32
20190341893
2019-11-07

RF power amplifier with frequency selective impedance matching network

#33
20190288651
2019-09-19

Matrix power amplifier

#34
20190273471
2019-09-05

Low noise differential amplifier

#35
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

#36
20190245085
2019-08-08

Self-biasing and self-sequencing of depletion-mode transistors

#37
20190229684
2019-07-25

System and method for reducing output harmonics

#38
20190229077
2019-07-25

Packaged RF power amplifier having a high power density

#39
20190207561
2019-07-04

Amplifying device comprising a compensation circuit

#40
20190190464
2019-06-20

RF power transistors with impedance matching circuits, and methods of manufacture thereof

#41
20190165739
2019-05-30

Quadrature combined doherty amplifiers

#42
20190158031
2019-05-23

Cascode amplifier bias circuits

#43
20190149106
2019-05-16

OUTPUT CIRCUIT OF AMPLIFIER

#44
20190131462
2019-05-02

Pseudo-resistor structure, a closed-loop operational amplifier circuit and a bio-potential sensor

#45
20190123696
2019-04-25

Low noise amplifier and radio frequency amplification method using the same

#46
20190116331
2019-04-18

Amplifier, and analog-to-digital conversion circuit and image sensor including the same

#47
20190115876
2019-04-18

Power amplifier with nulling monitor circuit

#48
20190052238
2019-02-14

Circuit module having dual-mode wideband power amplifier architecture

#49
20190036491
2019-01-31

Dynamic amplification circuit

#50
20190033431
2019-01-31

Circuit device, physical quantity measuring device, electronic apparatus, and vehicle

#51
20190028075
2019-01-24

Semiconductor integrated circuit

#52
20190020314
2019-01-17

RF amplifier with conductor-less region underlying filter circuit inductor, and methods of manufacture thereof

#53
20190007004
2019-01-03

High gain resonant amplifier for resistive output impedance

#54
20190007001
2019-01-03

Method for improving linearity of radio frequency power amplifier, compensation circuit and communications terminal

#55
20180358931
2018-12-13

Power amplifier

#56
20180342992
2018-11-29

Power amplifier circuit

#57
20180302039
2018-10-18

Source switched split LNA

#58
20180248522
2018-08-30

Operational amplifier, corresponding circuit, apparatus and method

#59
20180205351
2018-07-19

Amplifier system for use as high sensitivity selective receiver without frequency conversion

#60
20180205350
2018-07-19

Amplifier system for use as high sensitivity selective receiver without frequency conversion

#61
20180183394
2018-06-28

Dynamic amplifier and chip using the same

#62
20180175807
2018-06-21

LNA with programmable linearity

#63
20180175801
2018-06-21

Inter-stage network for radio frequency amplifier

#64
20180159475
2018-06-07

Body tie optimization for stacked transistor amplifier

#65
20180145633
2018-05-24

Distributed pole-zero compensation for an amplifier

#66
20180097484
2018-04-05

Matrix power amplifier

#67
20180097481
2018-04-05

Fully integrated low-noise amplifier

#68
20180083578
2018-03-22

Cascode amplifier bias circuits

#69
20180026591
2018-01-25

Logarithmic detector amplifier system for use as high sensitivity selective receiver without frequency conversion

#70
20170360315
2017-12-21

Conversion circuit and detection circuit

#71
20170346456
2017-11-30

Active RC filters

#72
20170331366
2017-11-16

Switched-capacitor buffer and related methods

#73
20170302232
2017-10-19

Class D amplifier

#74
20170187337
2017-06-29

Advanced amplifier system for ultra-wide band RF communication

#75
20170141733
2017-05-18

Distributed pole-zero compensation for an amplifier

#76
20170093350
2017-03-30

Multi-stage amplifier with improved operating efficiency

#77
20170040959
2017-02-09

Apparatus and method for precharging a load

#78
20160299519
2016-10-13

Zero drift, limitless and adjustable reference voltage generation

#79
20160285418
2016-09-29

RF amplifier with conductor-less region underlying filter circuit inductor, and methods of manufacture thereof

#80
20160218685
2016-07-28

Multi-stage track-and-hold amplifier

#81
20160173041
2016-06-16

Hot-swap current-sensing system

#82
20160056775
2016-02-25

Signal output circuit

#83
20150371770
2015-12-24

Broadband power amplifier having high efficiency

#84
20150355653
2015-12-10

Linear voltage regulator utilizing a large range of bypass-capacitance

#85
20150102858
2015-04-16

Distributed pole-zero compensation for an amplifier

#86
20120286868
2012-11-15

Class D power amplifier

#87
20120044021
2012-02-23

Differential amplifier circuit

#88
20110298643
2011-12-08

Adaptive bias current generator methods and apparatus

#89
20100237939
2010-09-23

Adaptive operational transconductance amplifier load compensation

#90
20100214277
2010-08-26

OUTPUT CIRCUIT AND DRIVING CIRCUIT FOR DISPLAY DEVICE

#91
20100134462
2010-06-03

Voltage amplifier and driving device of display device using the voltage amplifier

#92
20100127775
2010-05-27

Amplifier for driving external capacitive loads

#93
20100033251
2010-02-11

Output stage circuit and operational amplifier

#94
20090295477
2009-12-03

Ahuja compensation circuit for operational amplifier

#95
20090243691
2009-10-01

Signal output circuit

#96
20090224829
2009-09-10

Adaptive operational transconductance amplifier load compensation

#97
20090212862
2009-08-27

OP-AMP CIRCUIT AND OP-AMP CIRCUIT DRIVING METHOD

#98
20090184603
2009-07-23

Drive circuit

#99
20090153249
2009-06-18

Rail to rail buffer amplifier

#100
20090140811
2009-06-04

Amplifying circuit

#101
20090140810
2009-06-04

Variable gain amplifier

#102
20080284406
2008-11-20

Adaptive bias current generator methods and apparatus

#103
20080272846
2008-11-06

Adaptive biasing input stage and amplifiers including the same

#104
20080111590
2008-05-15

Buffer for driving capacitive load

#105
20070290726
2007-12-20

Driving device and driving method

#106
20070103227
2007-05-10

Voltage buffer for capacitive loads

#107
20060007726
2006-01-12

Voltage buffer for capacitive loads

#108
16511099
2021-01-05

Integration of vertical GaN varactor with HEMT

#109
15268257
2018-01-30

Body tie optimization for stacked transistor amplifier