Patents-Review.com
ClassID:

219633 ⎘

H03F2200/411 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising two power stages

Recent Application in this class:
#1
20260149421
2026-05-28

POWER AMPLIFIER BIAS CIRCUIT

 #2
20260012151
2026-01-08

STAGGERING GAIN ADJUSTMENTS OF AMPLIFIERS

 #3
20250007479
2025-01-02

STAGGERING GAIN ADJUSTMENTS OF AMPLIFIERS

 #4
20240364269
2024-10-31

Source Switched Split LNA

 #5
20240235497
2024-07-11

Scalable Periphery Tunable Matching Power Amplifier

 #6
20240136983
2024-04-25

Scalable Periphery Tunable Matching Power Amplifier

 #7
20240007121
2024-01-04

Device and method for reconfigurable common-mode feedback control in a receiver front end

 #8
20240007065
2024-01-04

POWER AMPLIFIER CIRCUIT, RADIO FREQUENCY CHIP AND ELECTRONIC DEVICE

 #9
20230396225
2023-12-07

Multiple-Port Signal Boosters

 #10
20230095390
2023-03-30

POWER AMPLIFIER BIAS CIRCUIT

 #11
20230092413
2023-03-23

RADIOFREQUENCY AMPLIFIER

 #12
20220329215
2022-10-13

Scalable periphery tunable matching power amplifier

 #13
20220311385
2022-09-29

Power amplifier circuit

 #14
20220021360
2022-01-20

Trans-impedance amplifier, chip, and communications device

 #15
20220021351
2022-01-20

APPARATUS AND METHODS FOR OVERLOAD PROTECTION OF RADIO FREQUENCY AMPLIFIERS

 #16
20220021348
2022-01-20

High voltage switch with fast turn-off

 #17
20210336584
2021-10-28

Source switched split LNA

 #18
20210194443
2021-06-24

Multiple-stage power amplifiers and devices with low-voltage driver stages

 #19
20210193484
2021-06-24

Semiconductor chip

 #20
20210159866
2021-05-27

Switched capacitor amplifier circuit, voltage amplification method, and infrared sensor device

 #21
20210126591
2021-04-29

Semiconductor device and power amplifier module

 #22
20210075373
2021-03-11

Apparatus and methods for power amplifiers with positive envelope feedback

 #23
20210058041
2021-02-25

Scalable periphery tunable matching power amplifier

 #24
20210044263
2021-02-11

Power amplifier circuit

 #25
20210013837
2021-01-14

Multiple-stage power amplifiers implemented with multiple semiconductor technologies

 #26
20200412455
2020-12-31

Reduction of second-order non-linear distortion in a wideband communication system

 #27
20200389130
2020-12-10

Multiple-stage power amplifiers implemented with multiple semiconductor technologies

 #28
20200336107
2020-10-22

Multi-mode stacked amplifier

 #29
20200336106
2020-10-22

Power amplifier module

 #30
20200304070
2020-09-24

Power amplifier

 #31
20200295712
2020-09-17

Method and device for controlling power amplification

 #32
20200280286
2020-09-03

Power amplification module

 #33
20200259467
2020-08-13

Apparatus and methods for overload protection of radio frequency amplifiers

 #34
20200228167
2020-07-16

Front-end modules with fixed impedance matching circuits

 #35
20200228067
2020-07-16

Power amplifier circuit

 #36
20200224960
2020-07-16

Multifunctional radio frequency systems and methods for UV sterilization, air purification, and defrost operations

 #37
20200220509
2020-07-09

Trans-impedance amplifier, chip, and communications device

 #38
20200204132
2020-06-25

MULTIPLE-PORT SIGNAL BOOSTERS

 #39
20200177140
2020-06-04

Semiconductor device and power amplifier module

 #40
20200162115
2020-05-21

Devices and methods related to multi-band power amplifier

 #41
20200162027
2020-05-21

Methods for operating amplifiers and related devices

 #42
20200144968
2020-05-07

Multiple-path RF amplifiers with angularly offset signal path directions, and methods of manufacture thereof

 #43
20200144967
2020-05-07

Source switched split LNA

 #44
20200144965
2020-05-07

Power amplifier circuit

 #45
20200106403
2020-04-02

RADIO FREQUENCY AMPLIFIERS WITH AN INJECTION-LOCKED OSCILLATOR DRIVER STAGE AND A STACKED OUTPUT STAGE

 #46
20200099340
2020-03-26

Apparatus and methods for power amplifiers with positive envelope feedback

 #47
20200091879
2020-03-19

Power amplification system with reactance compensation

 #48
20200067406
2020-02-27

Method of modifying a supply voltage to a power amplifier based on estimated number of resource blocks

 #49
20200036349
2020-01-30

Amplification circuit, apparatus for amplifying, low noise amplifier, radio receiver, mobile terminal, base station, and method for amplifying

 #50
20200014334
2020-01-09

Power amplification circuit

 #51
20190341895
2019-11-07

Amplifier system with digital switched attenuator

 #52
20190334481
2019-10-31

Methods for amplifying signals using a Doherty amplifier

 #53
20190326857
2019-10-24

Power amplifier circuit

 #54
20190319093
2019-10-17

Integrated RF front end system

 #55
20190296699
2019-09-26

Semiconductor device and power amplifier module

 #56
20190280654
2019-09-12

Method and system for linearizing an amplifier using transistor-level dynamic feedback

 #57
20190273470
2019-09-05

CURRENT CONTROL USING POWER CELL ISOLATION

 #58
20190267954
2019-08-29

Scalable periphery tunable matching power amplifier

 #59
20190260400
2019-08-22

Power amplification module

 #60
20190253145
2019-08-15

Reduction of second-order non-linear distortion in a wideband communication system

 #61
20190245507
2019-08-08

Broadband power amplifier and matching network for multi-band millimeter-wave 5G communication

 #62
20190243403
2019-08-08

Programmable low dropout regulators with fast transient response when programming output voltage

 #63
20190229692
2019-07-25

Audio signal processor and method of processing audio signal

 #64
20190229681
2019-07-25

Power amplifier module

 #65
20190215023
2019-07-11

Load modulation in signal transmission

 #66
20190214946
2019-07-11

MULTI-MODE POWER AMPLIFIERS WITH PHASE MATCHING

 #67
20190199302
2019-06-27

Power amplifier circuit

 #68
20190199291
2019-06-27

Power amplifying apparatus having bias boosting structure with improved linearity

 #69
20190199290
2019-06-27

Differential amplifier with complementary unit structure

 #70
20190190469
2019-06-20

CIRCUITS FOR POWER-COMBINED POWER AMPLIFIER ARRAYS

 #71
20190181818
2019-06-13

Magnetic operational amplifier

 #72
20190173530
2019-06-06

Processing radio-frequency signals with tunable matching circuits

 #73
20190173439
2019-06-06

Power amplifier circuit

 #74
20190173438
2019-06-06

Multi-branch outphasing system and method

 #75
20190173433
2019-06-06

Power amplifier self-heating compensation circuit

 #76
20190173430
2019-06-06

Multiple-path amplifier with series component along inverter between amplifier outputs

 #77
20190165747
2019-05-30

APPARATUS AND METHOD FOR VOLTAGE DISTRIBUTION

 #78
20190165736
2019-05-30

Envelope trackers providing compensation for power amplifier output load variation

 #79
20190158030
2019-05-23

Amplifier arrangement

 #80
20190148172
2019-05-16

Semiconductor chip

 #81
20190140598
2019-05-09

Multiple-stage power amplifiers implemented with multiple semiconductor technologies

 #82
20190140596
2019-05-09

Power amplification module

 #83
20190140595
2019-05-09

CIRCUITS, DEVICES AND METHODS RELATED TO ADJUSTMENT OF INPUT SIGNAL FOR COMPENSATION OF AMPLIFIER

 #84
20190140594
2019-05-09

Method and device for controlling power amplification

 #85
20190140592
2019-05-09

Low voltage amplifier with gain boost circuit

 #86
20190109565
2019-04-11

Power amplifier module

 #87
20190101325
2019-04-04

Multifunctional radio frequency systems and methods for UV sterilization, air purification, and defrost operations

 #88
20190097590
2019-03-28

Power amplification circuit

 #89
20190097584
2019-03-28

Envelope-shaped bias for power amplifier

 #90
20190089314
2019-03-21

Methods and apparatuses for ruggedizing a power amplifier against breakdown using harmonic tuning

 #91
20190089309
2019-03-21

Multi-mode stacked amplifier

 #92
20190075625
2019-03-07

High-frequency heating device

 #93
20190074806
2019-03-07

Dynamic thermal compensation in a power amplifier

 #94
20190069087
2019-02-28

Direct current mode digital-to-analog converter to class D amplifier

 #95
20190068142
2019-02-28

Semiconductor device

 #96
20190068138
2019-02-28

Vacuum tube audio amplifier

 #97
20190068132
2019-02-28

Power amplifier circuit

 #98
20190068121
2019-02-28

RF amplifier linearity enhancement with dynamically adjusted variable load

 #99
20190052238
2019-02-14

Circuit module having dual-mode wideband power amplifier architecture

 #100
20190013781
2019-01-10

CMOS wideband RF amplifier with gain roll-off compensation for external parasitics

 #101
20190013398
2019-01-10

High power compound semiconductor field effect transistor devices with low doped drain

 #102
20190007006
2019-01-03

Radio frequency switch apparatus with improved harmonic attenuation characteristics

 #103
20180367105
2018-12-20

Power amplifier module

 #104
20180360426
2018-12-20

Multi-stage trans-impedance amplifier (TIA) for an ultrasound device

 #105
20180358929
2018-12-13

Front-end system having switchable amplifier output stage

 #106
20180351518
2018-12-06

Power amplification circuit

 #107
20180351517
2018-12-06

Hybrid RF transceiver circuit

 #108
20180351454
2018-12-06

System efficiency improvement for cellular signals

 #109
20180343027
2018-11-29

Transceiving device

 #110
20180343022
2018-11-29

Power amplification module

 #111
20180342995
2018-11-29

Power amplifier module

 #112
20180337641
2018-11-22

Reduction of second-order non-linear distortion in a wideband communication system

 #113
20180331667
2018-11-15

Switched capacitor amplifier circuit, voltage amplification method, and infrared sensor device

 #114
20180331665
2018-11-15

Amplifier and transmitter, and transmission method

 #115
20180331664
2018-11-15

Multi-stage high frequency amplifier

 #116
20180323758
2018-11-08

Power amplification system with reactance compensation

 #117
20180323752
2018-11-08

Apparatus and methods for overload protection of radio frequency amplifiers

 #118
20180316360
2018-11-01

Complementary current reusing preamp for operational amplifier

 #119
20180316312
2018-11-01

Apparatus and methods for power amplifiers with positive envelope feedback

 #120
20180309417
2018-10-25

Semiconductor device and power amplifier module

 #121
20180309412
2018-10-25

Power amplification circuit

 #122
20180302039
2018-10-18

Source switched split LNA

 #123
20180295442
2018-10-11

Switching in an audio system with multiple playback paths

 #124
20180294779
2018-10-11

Dynamically configurable bias circuit for controlling gain expansion of multi-mode, single chain linear power amplifiers

 #125
20180287565
2018-10-04

Power amplifier module

 #126
20180287562
2018-10-04

Power amplifier circuit

 #127
20180277501
2018-09-27

LDMOS transistor structure and method of manufacture

 #128
20180262164
2018-09-13

Power amplifier self-heating compensation circuit

 #129
20180262163
2018-09-13

Current mirror bias compensation circuit

 #130
20180262162
2018-09-13

Doherty power amplifiers with different operating biases

 #131
20180248521
2018-08-30

Multiple-stage RF amplifier devices

 #132
20180248520
2018-08-30

Circuit system

 #133
20180241364
2018-08-23

Trans-impedance amplifier, chip, and communications device

 #134
20180241349
2018-08-23

Power amplifier module

 #135
20180227008
2018-08-09

Power amplification module, front-end circuit, and communication device

 #136
20180227000
2018-08-09

Multi-band power amplifier

 #137
20180226923
2018-08-09

Power amplifier circuit and high-frequency module

 #138
20180219516
2018-08-02

Radio frequency amplifiers with an injection-locked oscillator driver stage and a stacked output stage

 #139
20180198423
2018-07-12

Preamplifier and method

 #140
20180190601
2018-07-05

High-frequency module

 #141
20180183392
2018-06-28

Gallium nitride power amplifier

 #142
20180176683
2018-06-21

Direct current mode digital-to-analog converter to class D amplifier

 #143
20180175802
2018-06-21

Amplifiers and amplifier modules with shunt inductance circuits that include high-Q capacitors

 #144
20180175801
2018-06-21

Inter-stage network for radio frequency amplifier

 #145
20180159568
2018-06-07

Transmitter, communication unit and method for limiting spectral re-growth

 #146
20180159567
2018-06-07

Transmitter, communication unit and methods for limiting spectral re-growth

 #147
20180152145
2018-05-31

Power amplification circuit

 #148
20180145650
2018-05-24

Split cascode circuits and related communication receiver architectures

 #149
20180145638
2018-05-24

Output stage circuit

 #150
20180138880
2018-05-17

Power amplifier and gain reduction circuit thereof

 #151
20180138874
2018-05-17

Amplifier system with digital switched attenuator

 #152
20180138870
2018-05-17

Scalable periphery tunable matching power amplifier

 #153
20180138868
2018-05-17

METHOD AND SYSTEM FOR LINEARIZING AN AMPLIFIER USING TRANSISTOR-LEVEL DYNAMIC FEEDBACK

 #154
20180138865
2018-05-17

Class-D power amplifier nested inside low-noise differential op-amp feedback loop

 #155
20180138863
2018-05-17

Multi-mode radio frequency (RF) power amplifier circuit

 #156
20180130876
2018-05-10

Integrated RF front end system

 #157
20180123623
2018-05-03

Semiconductor device and operating method thereof

 #158
20180123538
2018-05-03

Source follower based envelope tracking for power amplifier biasing

 #159
20180123518
2018-05-03

Multi-mode power amplifiers with phase matching

 #160
20180097487
2018-04-05

Comparator having a high-speed amplifier and a low-noise amplifier

 #161
20180090455
2018-03-29

Semiconductor device including a LDMOS transistor, monolithic microwave integrated circuit and method

 #162
20180062682
2018-03-01

Filtering architectures and methods for wireless applications

 #163
20180062595
2018-03-01

Semiconductor device with improved variable gain amplification

 #164
20180062592
2018-03-01

Reconfigurable power amplifier

 #165
20180062582
2018-03-01

LOW-NOISE AMPLIFIER HAVING INTER-STAGE FILTER

 #166
20180062580
2018-03-01

Output power cell for cascode amplifiers

 #167
20180055409
2018-03-01

Reconfigurable sensor circuit

 #168
20180054213
2018-02-22

Feed-forward operational amplifier noise cancellation technique and associated filter and delta-sigma modulator

 #169
20180054169
2018-02-22

Amplifier biasing circuits and method

 #170
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

 #171
20180034423
2018-02-01

Power amplifier module

 #172
20180034414
2018-02-01

Active bias circuit for power amplifier, and mobile terminal

 #173
20180026595
2018-01-25

Matching network circuit and radio-frequency power amplifier with odd harmonic rejection and even harmonic rejection and method of adjusting symmetry of differential signals

 #174
20180026585
2018-01-25

Wideband single-ended IM3 distortion nulling

 #175
20180020288
2018-01-18

Direct current mode digital-to-analog converter to class D amplifier

 #176
20180019710
2018-01-18

Source switched split LNA

 #177
20180013391
2018-01-11

Multiple-path RF amplifiers with angularly offset signal path directions, and methods of manufacture thereof

 #178
20180006613
2018-01-04

Amplifier and radiation detector

 #179
20180006608
2018-01-04

BIAS CIRCUIT

 #180
20170366150
2017-12-21

Amplification apparatus having single-input multi-output structure

 #181
20170359040
2017-12-14

Amplification circuit, apparatus for amplifying, low noise amplifier, radio receiver, mobile terminal, base station, and method for amplifying

 #182
20170359029
2017-12-14

Amplifiers operating in envelope tracking mode or non-envelope tracking mode

 #183
20170353162
2017-12-07

Power amplification circuit

 #184
20170324451
2017-11-09

Compensating amplifier phase in a diversity receiver front end

 #185
20170324388
2017-11-09

Apparatus and methods for power amplifiers with an injection-locked oscillator driver stage

 #186
20170317650
2017-11-02

Power amplification circuit

 #187
20170310291
2017-10-26

Amplifier circuit and amplifier arrangement

 #188
20170310286
2017-10-26

Power amplification circuit

 #189
20170302227
2017-10-19

Power amplifier having selective signal paths

 #190
20170294889
2017-10-12

System and method to directly couple to analog to digital converter having lower voltage reference

 #191
20170288623
2017-10-05

Current reuse amplifier

 #192
20170288616
2017-10-05

Power amplification circuit

 #193
20170288611
2017-10-05

Power amplification module

 #194
20170288609
2017-10-05

Multi-mode stacked amplifier

 #195
20170279424
2017-09-28

Apparatus and method for variable voltage distribution

 #196
20170279413
2017-09-28

Power amplification circuit

 #197
20170264253
2017-09-14

Power amplifier with input power protection circuits

 #198
20170264252
2017-09-14

Active linearization for broadband amplifiers

 #199
20170243939
2017-08-24

Heterojunction bipolar transistor

 #200
20170237403
2017-08-17

Multiplexed multi-stage low noise amplifier uses gallium arsenide and CMOS dice

 #201
20170237400
2017-08-17

Power amplifier

 #202
20170230018
2017-08-10

Receiver circuit and system using the same

 #203
20170230012
2017-08-10

Radio frequency (RF) amplifiers with voltage limiting using non-linear feedback

 #204
20170230011
2017-08-10

Vapor chamber amplifier module

 #205
20170207756
2017-07-20

Power amplification module

 #206
20170207752
2017-07-20

Amplifier with base current reuse

 #207
20170170792
2017-06-15

Broadband power amplifier systems and methods

 #208
20170163223
2017-06-08

Power amplification circuit

 #209
20170149394
2017-05-25

Matching network circuit and radio-frequency power amplifier with odd harmonic rejection and even harmonic rejection and method of adjusting symmetry of differential signals

 #210
20170141736
2017-05-18

Broadband envelope tracking

 #211
20170133989
2017-05-11

Bias control for stacked transistor configuration

 #212
20170126183
2017-05-04

Power amplification circuit

 #213
20170104573
2017-04-13

Dual-input, high power handling, power combining LNA for full duplex communications systems

 #214
20170104457
2017-04-13

Multiplexed multi-stage low noise amplifier uses gallium arsenide and CMOS dies

 #215
20170093350
2017-03-30

Multi-stage amplifier with improved operating efficiency

 #216
20170093340
2017-03-30

Apparatus and methods for capacitive load reduction in a mobile device

 #217
20170093339
2017-03-30

Apparatus and methods for multi-mode power amplifiers

 #218
20170085238
2017-03-23

Power amplifier module

 #219
20170085232
2017-03-23

Power amplification module

 #220
20170077881
2017-03-16

Chopper stabilized amplifier with synchronous switched capacitor noise filtering

 #221
20170077879
2017-03-16

Linearization circuit for a multiple-stage RF power amplifier

 #222
20170077878
2017-03-16

Transimpedance amplifier

 #223
20170077875
2017-03-16

Doherty power amplifier and transmitter

 #224
20170063310
2017-03-02

Linearizer and radio frequency power amplifier using same

 #225
20170054926
2017-02-23

Imaging apparatus and imaging system

 #226
20170047894
2017-02-16

Power amplifier module

 #227
20170040958
2017-02-09

Amplifier with termination circuit and resonant circuit

 #228
20170040956
2017-02-09

Circuits for power-combined power amplifier arrays

 #229
20170040954
2017-02-09

Method and system for linearizing an amplifier using transistor-level dynamic feedback

 #230
20170033745
2017-02-02

Amplifier system and device

 #231
20170026090
2017-01-26

Diversity receiver front end system with amplifier phase compensation

 #232
20170026030
2017-01-26

Multimode reconfigurable amplifier and analog filter including the same

 #233
20170026002
2017-01-26

Architectures and devices related to Doherty amplifiers

 #234
20170019076
2017-01-19

Process-compensated HBT power amplifier bias circuits and methods

 #235
20170018607
2017-01-19

Integrated RF front end system

 #236
20170012590
2017-01-12

Active compensation for power amplifier gain droop

 #237
20170012588
2017-01-12

Apparatus and methods for tunable power amplifiers

 #238
20170010360
2017-01-12

Detection of excessively high interference signal levels during reception of global navigation satellite system signals

 #239
20170005629
2017-01-05

Average power tracking mode power amplifier using dual bias voltage levels

 #240
20160380603
2016-12-29

Flip-chip amplifier with termination circuit

 #241
20160373144
2016-12-22

POWER AMPLIFICATION MODULE

 #242
20160373069
2016-12-22

Power amplifier module

 #243
20160373063
2016-12-22

Current enhanced driver for high-power solid-state radio frequency power amplifiers

 #244
20160359459
2016-12-08

Circuits for low noise amplifiers with interferer reflecting loops

 #245
20160344355
2016-11-24

Amplifier circuit and method for adaptive amplifier biasing

 #246
20160336908
2016-11-17

Electrical signal amplifier, circuit arrangement and method

 #247
20160322944
2016-11-03

Power amplification module

 #248
20160322940
2016-11-03

Power amplifier and method for limiting current in power amplifier

 #249
20160294342
2016-10-06

CMOS RF switch device and method for biasing the same

 #250
20160294333
2016-10-06

Multi-band power amplifier

 #251
20160285499
2016-09-29

Apparatus and methods for power amplifier output matching

 #252
20160285426
2016-09-29

Power amplifiers with tunable notches

 #253
20160285423
2016-09-29

Power amplification module

 #254
20160252917
2016-09-01

Apparatus and methods for generating a variable regulated voltage

 #255
20160241213
2016-08-18

Power amplifier device and circuits

 #256
20160241199
2016-08-18

Control systems and methods for power amplifiers operating in envelope tracking mode

 #257
20160233841
2016-08-11

Amplifier

 #258
20160233839
2016-08-11

Low noise amplifier

 #259
20160226459
2016-08-04

Preamplifier and method

 #260
20160218685
2016-07-28

Multi-stage track-and-hold amplifier

 #261
20160218682
2016-07-28

Systems and methods related to linear load modulated power amplifiers

 #262
20160218674
2016-07-28

Dual-mode power amplifier

 #263
20160211871
2016-07-21

High frequency power amplifier, high frequency front-end circuit, and radio communication device

 #264
20160211809
2016-07-21

Method of generating a pulse width modulation (PWM) signal for an analog amplifier, and a related pulse width modulator

 #265
20160204745
2016-07-14

Linear amplifier using nonlinear amplifying stage

 #266
20160190998
2016-06-30

Amplifier circuit

 #267
20160190993
2016-06-30

Amplifiers operating in envelope tracking mode or non-envelope tracking mode

 #268
20160190990
2016-06-30

Concurrent dual-band signal amplifier

 #269
20160190989
2016-06-30

Optimization methods for amplifier with variable supply power

 #270
20160181995
2016-06-23

Reconfigurable bias and supply drivers for radio frequency power amplifiers

 #271
20160178456
2016-06-23

Method and apparatus for power management

 #272
20160173035
2016-06-16

Amplifier circuit, radio frequency receiver and mobile telecommunications device

 #273
20160164469
2016-06-09

Amplifier dynamic bias adjustment for envelope tracking

 #274
20160164468
2016-06-09

Amplifier dynamic bias adjustment for envelope tracking

 #275
20160142016
2016-05-19

Operational amplifier based circuit with compensation circuit block used for stability compensation

 #276
20160126993
2016-05-05

Diversity receiver front end system with tunable output matching circuit

 #277
20160118943
2016-04-28

Apparatus and methods for capacitive load reduction of an envelope tracker

 #278
20160112018
2016-04-21

Circuits and methods for reducing supply sensitivity in a power amplifier

 #279
20160112009
2016-04-21

Power amplification module and front end circuit

 #280
20160105151
2016-04-14

Switchable dual core power amplifier

 #281
20160087727
2016-03-24

Optical modulator driver circuit and optical transmitter

 #282
20160087593
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