ClassID:

219161

H03F1/307 - 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 influence of variations of temperature or supply voltage or other physical parameters in push-pull amplifiers

Sub-classes:
Recent Application in this class:
#1
20260012138
2026-01-08

PUSH-PULL SOURCE FOLLOWER CIRCUIT USING BIASING TECHNIQUE TO PROGRAM BIAS CURRENT AND OUTPUT MEAN VOLTAGE INDEPENDENTLY

#2
20250007471
2025-01-02

High-Speed, High-Power Operational Amplifier and Linear Amplitude Modulator

#3
20240186965
2024-06-06

Driving circuit for a switching transistor and a driving device including the same

#4
20210184639
2021-06-17

Electrical amplifier

#5
20200395908
2020-12-17

Configurable modal amplifier system

#6
20200067464
2020-02-27

Clamped output amplifier

#7
20190348957
2019-11-14

Audio amplifier circuit

#8
20180287579
2018-10-04

Controlling a power amplification stage of an audio signal amplifier

#9
20180248522
2018-08-30

Operational amplifier, corresponding circuit, apparatus and method

#10
20180167038
2018-06-14

Fully depleted silicon on insulator power amplifier

#11
20170373653
2017-12-28

Current-bootstrap comparator and operational amplifier thereof

#12
20170324386
2017-11-09

RF class AB cascode amplifier with linearization and steering diodes

#13
20170250665
2017-08-31

Controlling a power amplification stage of an audio signal amplifier

#14
20170244367
2017-08-24

High linearity inductorless LNA

#15
20170117858
2017-04-27

Push-pull amplifier, corresponding apparatus and method

#16
20170085230
2017-03-23

Class AB amplifier with bias control

#17
20160028355
2016-01-28

Dynamic current source for amplifier integrator stages

#18
20150357974
2015-12-10

Buffer circuit

#19
20150349716
2015-12-03

Differential output stage of an amplification device, for driving a load

#20
20150168514
2015-06-18

Power amplifier device for a magnetic resonance device and magnetic resonance device

#21
20150084696
2015-03-26

Amplification circuit

#22
20120170780
2012-07-05

Amplification circuit and hearing aid

#23
20110135116
2011-06-09

Method and apparatus for biasing an amplifier

#24
20110043278
2011-02-24

Method and apparatus for biasing an amplifier

#25
20100156532
2010-06-24

Class AB amplifier with resistive level-shifting circuitry

#26
20100061576
2010-03-11

Amplification circuit and hearing aid

#27
20100044835
2010-02-25

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

#28
20090039961
2009-02-12

Low quiescent current output stage and method with improved output drive

#29
20080252370
2008-10-16

Digital audio amplifier and digital audio amplifying method therefor

#30
20080012639
2008-01-17

Dual Mode Audio Amplifier

#31
20060208800
2006-09-21

Biasing stage for an amplifier

#32
20050024143
2005-02-03

Analog electronic device

#33
15687539
2018-12-04

Output stage of operational amplifier and method in the operational amplifier