ClassID:

219259

H03F3/3023 - 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 asymmetrical driving of the end stage

Sub-classes:
Recent Application in this class:
#1
20210376797
2021-12-02

LOW-NOISE AMPLIFIER SUPPORTING MULTI CARRIER OPERATIONS

#2
20180212572
2018-07-26

Class AB amplifier having cascode stage with filter for improving linearity

#3
20170279423
2017-09-28

Class AB common-source amplifier with constant transconductance

#4
20160269027
2016-09-15

Output buffer with offset cancellation structure and offset cancellation method using the same

#5
20150256138
2015-09-10

Fully differential class A/AB amplifier and method thereof

#6
20150028951
2015-01-29

Operational amplifier circuits

#7
20140103999
2014-04-17

Amplifier, fully-differential amplifier and delta-sigma modulator

#8
20130278341
2013-10-24

Radio frequency front-end circuit and operation method thereof

#9
20130200953
2013-08-08

Operational amplifier circuits

#10
20130043877
2013-02-21

Operational amplifier with different power supply voltages

#11
20110205193
2011-08-25

Operational amplifier with decreased through current, and display panel driver and display device incorporating the same

#12
20110163811
2011-07-07

Fast class AB output stage

#13
20100176849
2010-07-15

Closed loop surge protection technique for differential amplifiers

#14
20100164625
2010-07-01

Slew-rate-enhanced error amp with adaptive transconductance and single dominant pole shared by main and auxiliary amps

#15
20100164618
2010-07-01

Feedback network for cascaded amplifiers

#16
20090289930
2009-11-26

Operational amplifier circuit and display panel driving apparatus

#17
20090278602
2009-11-12

Closed loop surge protection technique for differential amplifiers

#18
20090224830
2009-09-10

Two-stage operational amplifier with class AB output stage

#19
20090091388
2009-04-09

Apparatus for slew rate enhancement of an operational amplifier

#20
20090066416
2009-03-12

Push-pull amplifier

#21
20090027122
2009-01-29

Compact low-power class AB amplifier

#22
20080278233
2008-11-13

Buffer drive

#23
20080191804
2008-08-14

Two-stage operational amplifier with class AB output stage

#24
20050270102
2005-12-08

Power amplifying apparatus

#25
20050162198
2005-07-28

Operational amplifier including low DC gain wideband feed forward circuit and high DC gain narrowband gain circuit

#26
20050134320
2005-06-23

Actuation circuit for MEMS structures

#27
20050030097
2005-02-10

Zero voltage class AB minimal delay output stage and method

#28
20050030092
2005-02-10

Active filter circuit with operational amplifier

#29
20050007195
2005-01-13

Low voltage high gain amplifier circuits