Patents-Review.com
ClassID:

219686 ⎘

H03F2200/555 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers A voltage generating circuit being realised for biasing different circuit elements

Recent Application in this class:
#1
20250330132
2025-10-23

FAULT PROTECTION OF SYMBOL BASED ENVELOPE TRACKERS

 #2
20250330129
2025-10-23

OPEN LOOP PROCESS AND TEMPERATURE INDEPENDENT BIAS CIRCUIT FOR STACKED DEVICE AMPLIFIERS

 #3
20250323603
2025-10-16

BIAS CIRCUIT FOR CASCODE FET AMPLIFIER WITH VARIABLE DRAIN BIAS

 #4
20250260370
2025-08-14

Cascode Amplifier Bias Circuits

 #5
20250211174
2025-06-26

DOHERTY AMPLIFIER

 #6
20250183859
2025-06-05

TRANS-IMPEDANCE AMPLIFIER FOR ULTRASOUND DEVICE AND RELATED APPARATUS AND METHODS

 #7
20250125775
2025-04-17

DEVICES AND METHODS FOR DETECTING A SATURATION CONDITION OF A POWER AMPLIFIER

 #8
20250070719
2025-02-27

HIGH EFFICIENCY ULTRA-WIDEBAND AMPLIFIER

 #9
20250030386
2025-01-23

POWER AMPLIFIER SYSTEMS INCLUDING CONTROL INTERFACE AND WIRE BOND PAD

 #10
20240348211
2024-10-17

Cascode amplifier bias circuits

 #11
20240136991
2024-04-25

Pulse-Shaping Networks with Coupled Magnetics

 #12
20240120891
2024-04-11

Trans-impedance amplifier for ultrasound device and related apparatus and methods

 #13
20240056034
2024-02-15

BIAS CIRCUIT AND POWER AMPLIFIER CIRCUIT

 #14
20230412132
2023-12-21

Voltage Generation Circuitry with Reduced Settling Time

 #15
20230387864
2023-11-30

Cascode amplifier bias circuits

 #16
20230378915
2023-11-23

Devices and methods for detecting a saturation condition of a power amplifier

 #17
20230143127
2023-05-11

Comparator integration time stabilization technique utilizing common mode mitigation scheme

 #18
20230127206
2023-04-27

REGULATED SUPPLY FOR IMPROVED SINGLE-ENDED CHOPPING PERFORMANCE

 #19
20220393653
2022-12-08

Power amplifier modules including semiconductor resistor and tantalum nitride terminated through wafer via

 #20
20220368287
2022-11-17

Cascode amplifier bias circuits

 #21
20220302881
2022-09-22

OPEN LOOP PROCESS AND TEMPERATURE INDEPENDENT BIAS CIRCUIT FOR STACKED DEVICE AMPLIFIERS

 #22
20220123693
2022-04-21

Doherty power amplifiers and devices with low voltage driver stage in carrier-path and high voltage driver stage in peaking-path

 #23
20220014155
2022-01-13

Devices and methods for detecting a saturation condition of a power amplifier

 #24
20210399692
2021-12-23

Multi-stage decoupling networks integrated with on-package impedance matching networks for RF power amplifiers

 #25
20210384872
2021-12-09

Trans-impedance amplifier for ultrasound device and related apparatus and methods

 #26
20210367557
2021-11-25

Amplifying circuit and amplifying device with start-up function

 #27
20210351746
2021-11-11

High efficiency ultra-wideband amplifier

 #28
20210341959
2021-11-04

Current mirror arrangements with semi-cascoding

 #29
20210320628
2021-10-14

Power amplification module

 #30
20210305944
2021-09-30

Device and device protection system

 #31
20210208184
2021-07-08

Dynamically controlled auto-ranging current sense circuit

 #32
20210167734
2021-06-03

Apparatus and methods for envelope tracking systems with automatic mode selection

 #33
20210058037
2021-02-25

Amplifier device

 #34
20210050826
2021-02-18

Power amplifier systems with control interface and bias circuit

 #35
20210028749
2021-01-28

Power amplifier

 #36
20210013841
2021-01-14

Cascode amplifier bias circuits

 #37
20200395896
2020-12-17

Dynamic amplifier

 #38
20200350876
2020-11-05

Bias circuitry

 #39
20200343865
2020-10-29

Wide bandwidth envelope trackers

 #40
20200313629
2020-10-01

Power amplifier circuit

 #41
20200304070
2020-09-24

Power amplifier

 #42
20200280286
2020-09-03

Power amplification module

 #43
20200235708
2020-07-23

Power amplifier and impedance adjustment circuit

 #44
20200169226
2020-05-28

Power amplification module

 #45
20200168734
2020-05-28

Self-biasing and self-sequencing of depletion mode transistors

 #46
20200162032
2020-05-21

Devices and methods for detecting a saturation condition of a power amplifier

 #47
20200099343
2020-03-26

Apparatus and methods for envelope tracking systems with automatic mode selection

 #48
20200099339
2020-03-26

Amplifier device

 #49
20200091870
2020-03-19

ENHANCED AMPLIFIER EFFICIENCY THROUGH CASCODE CURRENT STEERING

 #50
20200052651
2020-02-13

Power amplifier device with improved response speed

 #51
20190379332
2019-12-12

SCHOTTKY ENHANCED BIAS CIRCUIT

 #52
20190319585
2019-10-17

DYNAMIC ERROR VECTOR MAGNITUDE DUTY CYCLE CORRECTION

 #53
20190267950
2019-08-29

Adaptive multiband power amplifier apparatus

 #54
20190260400
2019-08-22

Power amplification module

 #55
20190245493
2019-08-08

Power amplifier

 #56
20190245085
2019-08-08

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

 #57
20190214946
2019-07-11

MULTI-MODE POWER AMPLIFIERS WITH PHASE MATCHING

 #58
20190207568
2019-07-04

Self biased dual mode differential CMOS TIA for 400G fiber optic links

 #59
20190199290
2019-06-27

Differential amplifier with complementary unit structure

 #60
20190165733
2019-05-30

High efficiency ultra-wideband amplifier

 #61
20190158045
2019-05-23

Power amplifier modules including transistor with grading and semiconductor resistor

 #62
20190158031
2019-05-23

Cascode amplifier bias circuits

 #63
20190140603
2019-05-09

Trans-impedance amplifier for ultrasound device and related apparatus and methods

 #64
20190140596
2019-05-09

Power amplification module

 #65
20190109574
2019-04-11

System and method for biasing an RF circuit

 #66
20190103847
2019-04-04

Power amplifier circuit

 #67
20190097590
2019-03-28

Power amplification circuit

 #68
20190052233
2019-02-14

Power amplification module

 #69
20190020315
2019-01-17

Apparatus and methods for envelope tracking systems with automatic mode selection

 #70
20190006998
2019-01-03

Amplifier arrangement and switched capacitor integrator

 #71
20180375483
2018-12-27

Wide bandwidth envelope trackers

 #72
20180367171
2018-12-20

Linearization of a radiofrequency-signal transmission chain

 #73
20180351518
2018-12-06

Power amplification circuit

 #74
20180337637
2018-11-22

Class-H switching amplifier circuit having supply voltage proportional to an audio signal

 #75
20180331658
2018-11-15

Power amplifying apparatus with boost function

 #76
20180323761
2018-11-08

Output circuit

 #77
20180323750
2018-11-08

Sensor bias circuit for improved noise performance

 #78
20180316325
2018-11-01

Amplifier circuit that amplifies differential signal and optical module that includes amplifier circuit

 #79
20180309412
2018-10-25

Power amplification circuit

 #80
20180302036
2018-10-18

Apparatus and methods for envelope tracking systems

 #81
20180294778
2018-10-11

Amplifier used to improve operational performance under bypass mode

 #82
20180294774
2018-10-11

High-frequency semiconductor amplifier circuit

 #83
20180269838
2018-09-20

Schottky enhanced bias circuit

 #84
20180254746
2018-09-06

Stacked PA power control

 #85
20180248523
2018-08-30

Radio-frequency devices having AM-PM distortion correction features

 #86
20180234061
2018-08-16

Multi-mode power amplifier

 #87
20180198426
2018-07-12

Low supply Class AB output amplifier

 #88
20180191331
2018-07-05

Band pass filter utilizing parallel resonance of BAW resonator

 #89
20180191320
2018-07-05

Amplifier with auxiliary path for maximizing power supply rejection ratio

 #90
20180191308
2018-07-05

Amplifier device

 #91
20180191307
2018-07-05

Charge-steering amplifier circuit and control method thereof

 #92
20180191306
2018-07-05

Op-amp IC chip

 #93
20180183389
2018-06-28

Enhanced amplifier efficiency through cascode current steering

 #94
20180175800
2018-06-21

RF power amplifier bias modulation with programmable stages

 #95
20180159482
2018-06-07

Radio frequency module and communication device

 #96
20180152151
2018-05-31

Bias control circuit and power amplification module

 #97
20180145641
2018-05-24

RF power detector circuits

 #98
20180138861
2018-05-17

Dynamic error vector magnitude duty cycle correction

 #99
20180123535
2018-05-03

Differential current to voltage converter

 #100
20180123529
2018-05-03

Adaptive multiband power amplifier apparatus

 #101
20180123521
2018-05-03

Amplifier

 #102
20180123518
2018-05-03

Multi-mode power amplifiers with phase matching

 #103
20180109227
2018-04-19

Amplifier with adjustable gain

 #104
20180097488
2018-04-05

Fully differential operational amplifier

 #105
20180083578
2018-03-22

Cascode amplifier bias circuits

 #106
20180076772
2018-03-15

Apparatus and methods for envelope tracking systems with automatic mode selection

 #107
20180069509
2018-03-08

Universal RF amplifier controller

 #108
20180069508
2018-03-08

High-frequency semiconductor amplifier circuit

 #109
20180062581
2018-03-01

High frequency semiconductor amplifier circuit

 #110
20180041195
2018-02-08

Buffer stage and control circuit

 #111
20180041171
2018-02-08

Selectable current limiter circuit

 #112
20180041169
2018-02-08

Power amplifier

 #113
20180006620
2018-01-04

Low supply class AB output amplifier

 #114
20180006617
2018-01-04

Self biased dual mode differential CMOS TIA for 400G fiber optic links

 #115
20180006608
2018-01-04

BIAS CIRCUIT

 #116
20170373643
2017-12-28

Power control method, device and communication terminal for radio frequency power amplifier

 #117
20170359038
2017-12-14

Power amplifier circuit

 #118
20170353165
2017-12-07

Differential amplifiers

 #119
20170353162
2017-12-07

Power amplification circuit

 #120
20170346456
2017-11-30

Active RC filters

 #121
20170331441
2017-11-16

Output circuit

 #122
20170317650
2017-11-02

Power amplification circuit

 #123
20170310286
2017-10-26

Power amplification circuit

 #124
20170302231
2017-10-19

Methods, modules and devices for detecting a saturation condition of a power amplifier

 #125
20170288616
2017-10-05

Power amplification circuit

 #126
20170288614
2017-10-05

High-frequency signal amplifier circuit, power amplifier module, front-end circuit, and communication apparatus

 #127
20170288612
2017-10-05

Efficient wide bandwidth envelope tracking power supply

 #128
20170288611
2017-10-05

Power amplification module

 #129
20170279417
2017-09-28

Amplifier used to improve operational performance under bypass mode

 #130
20170264253
2017-09-14

Power amplifier with input power protection circuits

 #131
20170264247
2017-09-14

Power amplification apparatus and method for controlling power amplification apparatus

 #132
20170257070
2017-09-07

Power amplifier modules with bonding pads and related systems, devices, and methods

 #133
20170244371
2017-08-24

Linear gain code interleaved automatic gain control circuit

 #134
20170237400
2017-08-17

Power amplifier

 #135
20170230013
2017-08-10

Power amplification circuit

 #136
20170230006
2017-08-10

Wideband adaptive bias circuits for power amplifiers

 #137
20170207758
2017-07-20

Power amplifier system and associated control circuit and control method

 #138
20170207756
2017-07-20

Power amplification module

 #139
20170194919
2017-07-06

Radio-frequency and bias signal coupling in power amplifier devices

 #140
20170179892
2017-06-22

Bias control circuit and power amplification module

 #141
20170179885
2017-06-22

Off-chip distributed drain biasing of high power distributed amplifier monolithic microwave integrated circuit (MMIC) chips

 #142
20170163225
2017-06-08

Trans-impedance amplifier for ultrasound device and related apparatus and methods

 #143
20170163223
2017-06-08

Power amplification circuit

 #144
20170149403
2017-05-25

Class-D amplifier, audio processing apparatus and method of driving class-D amplifier

 #145
20170141748
2017-05-18

Amplifier system, controller of main amplifier and associated control method

 #146
20170133988
2017-05-11

Distortion correction in cascode power amplifiers

 #147
20170127360
2017-05-04

Power amplifying apparatus and method using same

 #148
20170126183
2017-05-04

Power amplification circuit

 #149
20170111013
2017-04-20

Voltage follower circuit to mitigate gain loss caused by finite output impedance of transistors

 #150
20170111012
2017-04-20

Method and apparatus for maintaining DC bias

 #151
20170093345
2017-03-30

Power amplification module

 #152
20170093339
2017-03-30

Apparatus and methods for multi-mode power amplifiers

 #153
20170085232
2017-03-23

Power amplification module

 #154
20170077882
2017-03-16

Class-D amplifier with pulse-width modulation common-mode control and associated method for performing class-D amplification

 #155
20170077881
2017-03-16

Chopper stabilized amplifier with synchronous switched capacitor noise filtering

 #156
20170077879
2017-03-16

Linearization circuit for a multiple-stage RF power amplifier

 #157
20170063316
2017-03-02

High efficiency ultra-wideband amplifier

 #158
20170047953
2017-02-16

Apparatus and methods for envelope tracking systems

 #159
20170047901
2017-02-16

PROTECTION CIRCUIT FOR POWER AMPLIFIER

 #160
20170040962
2017-02-09

Power amplifier having biasing with selectable bandwidth

 #161
20170040955
2017-02-09

Dynamic bias modulator with multiple output voltage converter and power amplification apparatus using the same

 #162
20170033811
2017-02-02

Supply modulators with voltage and frequency partitioning

 #163
20170033746
2017-02-02

Dynamic error vector magnitude duty cycle correction

 #164
20170026008
2017-01-26

PROTECTION CIRCUIT OF POWER AMPLIFICATION CIRCUIT AND POWER AMPLIFICATION CIRCUIT USING THE SAME

 #165
20170026005
2017-01-26

Compression control of cascode power amplifiers

 #166
20170026000
2017-01-26

LINEARIZING CIRCUIT AND METHOD FOR AMPLIFIER

 #167
20170019076
2017-01-19

Process-compensated HBT power amplifier bias circuits and methods

 #168
20170019074
2017-01-19

Low noise amplifier

 #169
20160380602
2016-12-29

Power amplifier modules including tantalum nitride terminated through wafer via and related systems, devices, and methods

 #170
20160380594
2016-12-29

Power amplifier modules with harmonic termination circuit and related systems, devices, and methods

 #171
20160379944
2016-12-29

Power amplifier modules with power amplifier and transmission line and related systems, devices, and methods

 #172
20160353394
2016-12-01

RADIO COMMUNICATION DEVICE

 #173
20160352288
2016-12-01

Multistage amplifier

 #174
20160344360
2016-11-24

System and method for high input capacitive signal amplifier

 #175
20160336979
2016-11-17

Reference circuits for biasing radio frequency electronics

 #176
20160320781
2016-11-03

Memory effect reduction using low impedance biasing

 #177
20160315593
2016-10-27

Constant transconductance bias circuit

 #178
20160301368
2016-10-13

Hot carrier injection compensation

 #179
20160294329
2016-10-06

Semiconductor device

 #180
20160285423
2016-09-29

Power amplification module

 #181
20160285422
2016-09-29

Signal processing device, and driving method and program thereof

 #182
20160276988
2016-09-22

Voltage detecting circuit and power amplifier

 #183
20160276982
2016-09-22

Power amplifier

 #184
20160265970
2016-09-15

Event-based vision sensor and difference amplifier with reduced noise and removed offset

 #185
20160261237
2016-09-08

Distributed amplifier

 #186
20160254785
2016-09-01

Apparatus and method for power supply modulation

 #187
20160248381
2016-08-25

Power amplification device and method

 #188
20160248379
2016-08-25

Power amplifier bias signal multiplexing

 #189
20160241202
2016-08-18

Enhanced amplifier efficiency through cascode current steering

 #190
20160233838
2016-08-11

Reconfigurable power amplifier capable of selecting wide band frequency and method for selecting wide band frequency

 #191
20160218688
2016-07-28

Preamplifier circuit for a microelectromechanical capacitive acoustic transducer

 #192
20160211804
2016-07-21

Amplifier bias circuit

 #193
20160204744
2016-07-14

Amplifying device and radio communication device

 #194
20160195884
2016-07-07

Circuits and method for controlling transient fault conditions in a low dropout voltage regulator

 #195
20160191274
2016-06-30

Method and apparatus for minimizing within-die variations in performance parameters of a processor

 #196
20160191086
2016-06-30

Compression control through amplitude adjustment of a radio frequency input signal

 #197
20160191002
2016-06-30

Compression control through power amplifier voltage adjustment

 #198
20160191001
2016-06-30

Compression control through power amplifier load adjustment

 #199
20160190998
2016-06-30

Amplifier circuit

 #200
20160181989
2016-06-23

Multi-mode power amplifier

 #201
20160181984
2016-06-23

Quasi-switched, multi-band, high-power amplifier and method

 #202
20160173065
2016-06-16

Half-power buffer and/or amplifier

 #203
20160164475
2016-06-09

High bandwidth amplifier

 #204
20160164471
2016-06-09

Radio frequency devices with surface-mountable capacitors for decoupling and methods thereof

 #205
20160164465
2016-06-09

Buffer circuit capable of improving amplification performance

 #206
20160156318
2016-06-02

Self setting power supply using negative output impedance

 #207
20160142016
2016-05-19

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

 #208
20160142014
2016-05-19

Bias circuit for use with amplifier circuit, control method thereof, and signal amplifier

 #209
20160134243
2016-05-12

BIAS-BOOSTING CIRCUIT WITH DUAL CURRENT MIRRORS FOR RF POWER AMPLIFIER

 #210
20160134242
2016-05-12

Power amplifier

 #211
20160134241
2016-05-12

Power amplifier

 #212
20160126897
2016-05-05

Semiconductor amplifier bias circuit and semiconductor amplifier device

 #213
20160118947
2016-04-28

Self biased dual mode differential CMOS TIA for 400G fiber optic links

 #214
20160118942
2016-04-28

Predistortion in radio frequency transmitter

 #215
20160118940
2016-04-28

Power density matching for power amplifiers

 #216
20160118939
2016-04-28

Amplifier and amplification method

 #217
20160112087
2016-04-21

Method for compensating a power amplification unit of a wireless RF module

 #218
20160112018
2016-04-21

Circuits and methods for reducing supply sensitivity in a power amplifier

 #219
20160112010
2016-04-21

Low noise amplifier and chip

 #220
20160099692
2016-04-07

High gain, high slew rate amplifier

 #221
20160099686
2016-04-07

Linearity and noise improvement for multilevel power amplifier systems using multi-pulse drain transitions

 #222
20160094184
2016-03-31

Schottky enhanced bias circuit

 #223
20160079927
2016-03-17

Power amplifier

 #224
20160079924
2016-03-17

BIAS CIRCUIT, OPERATIONAL AMPLIFIER, AND DELTA SIGMA TYPE AD CONVERTER

 #225
20160072446
2016-03-10

Operational amplifying circuit and semiconductor device comprising the same

 #226
20160056769
2016-02-25

Power amplification module

 #227
20160049907
2016-02-18

Bias adjustment circuitry for balanced amplifiers

 #228
20160036389
2016-02-04

Envelope tracking with low frequency loss correction

 #229
20160036388
2016-02-04

Adaptive envelope tracking for biasing radio frequency power amplifiers

 #230
20160036386
2016-02-04

Dynamic bias current adjustment for power amplifiers

 #231
20160013756
2016-01-14

Unity gain buffers and related method

 #232
20150381120
2015-12-31

Slew rate control boost circuits and methods

 #233
20150365054
2015-12-17

Multi-band amplifier, method for controlling thereof

 #234
20150349816
2015-12-03

Apparatus and method for removing noise of power amplifier in mobile communication system

 #235
20150349729
2015-12-03

Amplifier circuit, bi-stage amplifier circuit, multi-stage amplifier circuit, RF-amplifier circuit, receiver section, RF-transceiver, and integrated circuit

 #236
20150349717
2015-12-03

Amplifier circuit with improved accuracy

 #237
20150349715
2015-12-03

Power amplifier bias circuit having parallel emitter follower

 #238
20150333704
2015-11-19

Method for class-B amplifier mismatch correction

 #239
20150333702
2015-11-19

Radio frequency amplifying circuit and power amplifying module

 #240
20150326258
2015-11-12

Apparatus and method for controlling power amplifier bias

 #241
20150326184
2015-11-12

Apparatus and methods for envelope trackers

 #242
20150326112
2015-11-12

Power stabilization circuit and method

 #243
20150311867
2015-10-29

High-frequency amplifier circuit

 #244
20150295549
2015-10-15

High-frequency amplifier circuit

 #245
20150295539
2015-10-15

Power amplifier circuit for communication systems

 #246
20150288338
2015-10-08

Power amplifier circuit capable of adjusting gain dynamically

 #247
20150280655
2015-10-01

Hot carrier injection compensation

 #248
20150270809
2015-09-24

Power amplification module

 #249
20150263677
2015-09-17

System and method for adaptive linearization of RF amplifiers

 #250
20150256136
2015-09-10

Method, apparatus and system for level shifting of common mode voltage from input to output for capacitive feedback transimpedance amplifier

 #251
20150256131
2015-09-10

Constant transconductance bias circuit

 #252
20150256130
2015-09-10

Amplifier structure

 #253
20150249479
2015-09-03

RF switch with integrated tuning

 #254
20150249435
2015-09-03

Analog amplifier for recovering abnormal operation of common mode feedback

 #255
20150249434
2015-09-03

Amplifier circuit and amplifier circuit IC chip

 #256
20150248136
2015-09-03

Current control for output device biasing stage

 #257
20150244328
2015-08-27

PPA linearization

 #258
20150222234
2015-08-06

Power amplifier module

 #259
20150222231
2015-08-06

Microwave amplifier device

 #260
20150214908
2015-07-30

Power amplifier

 #261
20150200633
2015-07-16

Quick comparison circuit

 #262
20150194937
2015-07-09

AMPLIFIER CIRCUIT

 #263
20150180427
2015-06-25

Power amplification circuit and power amplification module

 #264
20150180422
2015-06-25

Pseudo-envelope following power management system

 #265
20150155836
2015-06-04

Nonlinear load pre-distortion for open loop envelope tracking

 #266
20150155835
2015-06-04

Reduced power amplifier load impact for open loop envelope tracking

 #267
20150133186
2015-05-14

Multimode power amplifier bias circuit with selectable bandwidth

 #268
20150130540
2015-05-14

Amplifier

 #269
20150097534
2015-04-09

Circuits and method for controlling transient fault conditions in a low dropout voltage regulator

 #270
20150084697
2015-03-26

Amplifier

 #271
20150077187
2015-03-19

Dynamic error vector magnitude duty cycle correction

 #272
20150054550
2015-02-26

Signal processing device, and driving method and program thereof

 #273
20140306769
2014-10-16

Dual instantaneous envelope tracking

 #274
20140300422
2014-10-09

High output power amplifier

 #275
20140285268
2014-09-25

Radio frequency amplifying circuit and power amplifying module

 #276
20140266466
2014-09-18

Internally, resistively, sensed darlington amplifier

 #277
20140266449
2014-09-18

Methods and apparatuses for slew rate enhancement of amplifiers

 #278
20140266426
2014-09-18

Self setting power supply using negative output impedance

 #279
20140240049
2014-08-28

Bias circuit and amplifier controlling bias voltage

 #280
20140232589
2014-08-21

Receiver circuit, phased-array receiver and radar system

 #281
20140232459
2014-08-21

Bias circuit and amplifier with current limit function

 #282
20140232458
2014-08-21

Method and apparatus for a multi-standard, multi-mode, dynamic, DC-DC converter for radio frequency power amplifiers

 #283
20140213204
2014-07-31

Apparatus and methods for envelope tracking in radio frequency systems

 #284
20140210560
2014-07-31

Triple cascode power amplifier

 #285
20140203869
2014-07-24

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