H03F1/3217 - CPC Classification Index

ClassID:

219167 ⎘

H03F1/3217 - CPC Classification

Classification description:

Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements; Modifications of amplifiers to reduce non-linear distortion in single ended push-pull amplifiers

Recent Application in this class:

20250070719

2025-02-27

HIGH EFFICIENCY ULTRA-WIDEBAND AMPLIFIER

20240235492

2024-07-11

FULLY INTEGRATED CMOS MULTIPLE MOSFET-STACKED DOUBLE PUSH-PULL RF POWER AMPLIFIER

20240136982

2024-04-25

FULLY INTEGRATED CMOS MULTIPLE MOSFET-STACKED DOUBLE PUSH-PULL RF POWER AMPLIFIER

20230412128

2023-12-21

OUTPHASING AMPLIFIER AND SIGNAL PROCESSOR FOR OUTPHASING AMPLIFIER

20230327610

2023-10-12

SIGNAL AMPLIFYING CIRCUIT AND SIGNAL PROCESSING SYSTEM AND ANALOG-TO-DIGITAL CONVERTING SYSTEM COMPRISING THE SAME

20210351746

2021-11-11

High efficiency ultra-wideband amplifier

20190341890

2019-11-07

Amplification device

20190229684

2019-07-25

System and method for reducing output harmonics

20190165733

2019-05-30

High efficiency ultra-wideband amplifier

#10

20180287579

2018-10-04

Controlling a power amplification stage of an audio signal amplifier

#11

20170324386

2017-11-09

RF class AB cascode amplifier with linearization and steering diodes

#12

20170324383

2017-11-09

Calibration of push-pull amplifier to a low second order distortion

#13

20170302232

2017-10-19

Class D amplifier

#14

20170250665

2017-08-31

Controlling a power amplification stage of an audio signal amplifier

#15

20170244367

2017-08-24

High linearity inductorless LNA

#16

20170063316

2017-03-02

High efficiency ultra-wideband amplifier

#17

20170040953

2017-02-09

Systems and methods related to linear and efficient broadband power amplifiers

#18

20160164474

2016-06-09

Systems and methods related to linear and efficient broadband power amplifiers

#19

20160134240

2016-05-12

Method and circuitry for CMOS transconductor linearization

#20

20150054584

2015-02-26

Class AB signal generation apparatus

#21

20140111281

2014-04-24

Low dissipation amplifier

#22

20120169418

2012-07-05

Low dissipation amplifier

#23

20110215867

2011-09-08

Reducing pulse error distortion

#24

20110133839

2011-06-09

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

#25

20100214024

2010-08-26

Low dissipation amplifier

#26

20100039180

2010-02-18

Amplifying circuit

#27

20090153248

2009-06-18

Amplifier with dynamic bias

#28

20080032656

2008-02-07

Controllable power operational transconductance amplifier

#29

20070164821

2007-07-19

Load-invariant amplifier

#30

20070040608

2007-02-22

Feedback controller for PWM amplifier

#31

20050140437

2005-06-30

Bias system and method

#32

20050077961

2005-04-14

Class AB rail-to-rail operational amplifier