Patents-Review.com
ClassID:

219262 ⎘

H03F3/3028 - CPC Classification

Classification description:

Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; Single-ended push-pull amplifiers ; Phase-splitters therefor with field-effect transistors; CMOS common source output SEPP amplifiers with symmetrical driving of the end stage

Sub-classes:
Recent Application in this class:
#1
20250070719
2025-02-27

HIGH EFFICIENCY ULTRA-WIDEBAND AMPLIFIER

 #2
20220224288
2022-07-14

Local oscillator buffer

 #3
20210351746
2021-11-11

High efficiency ultra-wideband amplifier

 #4
20190190465
2019-06-20

Switched-capacitor power amplifiers

 #5
20190165733
2019-05-30

High efficiency ultra-wideband amplifier

 #6
20190081600
2019-03-14

Transadmittance amplifier

 #7
20180145639
2018-05-24

Amplifier for contorlling output range and multi-stage amplification device using the same

 #8
20170063316
2017-03-02

High efficiency ultra-wideband amplifier

 #9
20170040957
2017-02-09

Power amplifier having stack structure

 #10
20170005633
2017-01-05

Trans-impedance amplifier with replica gain control

 #11
20160365859
2016-12-15

Wideband highly-linear low output impedance D2S buffer circuit

 #12
20160308501
2016-10-20

Electronic device for a radiofrequency signal reception chain, comprising a low-noise transimpedance amplifier stage

 #13
20160149548
2016-05-26

Trans-impedance amplifier with replica gain control

 #14
20160065153
2016-03-03

Inverter type power amplifier

 #15
20150270816
2015-09-24

Performance of off-chip connection for power amplifier

 #16
20150270815
2015-09-24

Current feedback output circuit

 #17
20150270811
2015-09-24

Operational amplifier and driving circuit

 #18
20150263679
2015-09-17

Inverting amplifier

 #19
20150236651
2015-08-20

Multi-mode bias modulator and envelope tracking power amplifier using the same

 #20
20150188495
2015-07-02

Current controlled transconducting inverting amplifiers

 #21
20150171804
2015-06-18

Power amplifier having stack structure

 #22
20150084697
2015-03-26

Amplifier

 #23
20140184340
2014-07-03

Integrated circuit for use in a hybrid output stage

 #24
20140167850
2014-06-19

Current feedback output circuit

 #25
20140132349
2014-05-15

Self-biasing radio frequency circuitry

 #26
20130257535
2013-10-03

Fully differential amplifier topology to drive dynamic speakers in class AB mode

 #27
20130249635
2013-09-26

Amplifier for output buffer and signal processing apparatus using the same

 #28
20130207724
2013-08-15

Crossover performance of power amplifier

 #29
20130194039
2013-08-01

Differential amplifier circuit with ultralow power consumption provided with adaptive bias current generator circuit

 #30
20130169364
2013-07-04

Amplifier and transceiver including the amplifier

 #31
20130141165
2013-06-06

Performance of off-chip connection for power amplifier

 #32
20130049866
2013-02-28

Amplifier circuit with noise suppression and related noise suppression method thereof

 #33
20130033324
2013-02-07

Amplifier and associated receiver

 #34
20120319777
2012-12-20

Method and apparatus for biasing rail to rail DMOS amplifier output stage

 #35
20120270512
2012-10-25

Transfer Gate Circuit and Power Combining Circuit, Power Amplifying Circuit, Transmission Device, and Communication Device Using the Transfer Gate Circuit

 #36
20120268212
2012-10-25

Amplifier arrangement and method for operating an amplifier arrangement

 #37
20120249242
2012-10-04

Apparatus and methods for electronic amplification

 #38
20120188016
2012-07-26

Circuitry for biasing amplifiers

 #39
20120182072
2012-07-19

Self-biasing radio frequency circuitry

 #40
20120112840
2012-05-10

Semiconductor integrated circuit device

 #41
20120064852
2012-03-15

Low noise amplifier having both ultra-high linearity and low noise characteristic and radio receiver including the same

 #42
20120044021
2012-02-23

Differential amplifier circuit

 #43
20120025914
2012-02-02

CMOS power amplifier

 #44
20120001696
2012-01-05

Semiconductor integrated circuit device

 #45
20110285466
2011-11-24

POWER AMPLIFIER CIRCUIT

 #46
20110235689
2011-09-29

Power amplifier and semiconductor integrated circuit

 #47
20110133839
2011-06-09

Arrangement for calibrating the quiescent operating point of a push-pull amplifier

 #48
20110128073
2011-06-02

Semiconductor integrated circuit

 #49
20110109393
2011-05-12

Stacked pre-driver amplifier

 #50
20100265273
2010-10-21

Operational amplifier, driver and display

 #51
20100244964
2010-09-30

Semiconductor integrated circuit device

 #52
20100134188
2010-06-03

Buffer amplifier

 #53
20100134187
2010-06-03

Methods and apparatus to reduce idle current in power amplifiers

 #54
20100134186
2010-06-03

Low power operational amplifier

 #55
20100044835
2010-02-25

Setting the DC operating current of a rail-to-rail output stage of an op-amp

 #56
20100013558
2010-01-21

Driving circuit capable of enhancing response speed and related method

 #57
20090304092
2009-12-10

Low offset input circuit and transmission system with the input circuit

 #58
20090295481
2009-12-03

High speed differential to single ended converting circuit

 #59
20090267691
2009-10-29

Amplifier circuit

 #60
20090115524
2009-05-07

Output stage circuit and operational amplifier thereof

 #61
20090102558
2009-04-23

Operational amplifier

 #62
20090085688
2009-04-02

Semiconductor circuit, and computing device and communications device using the same

 #63
20070273442
2007-11-29

High-efficiency class-AB amplifier

 #64
20070085603
2007-04-19

Slew rate enhancement circuit via dynamic output stage for adjusting gamma curve

 #65
20070046378
2007-03-01

Operational amplifier output stage and method

 #66
20060255856
2006-11-16

Operational amplifier with less offset voltage

 #67
20060139085
2006-06-29

Differential circuit and receiver with same

 #68
20050077961
2005-04-14

Class AB rail-to-rail operational amplifier

 #69
20050052240
2005-03-10

High isolation/high speed buffer amplifier