ClassID:

220118

H03F2203/45626 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by; Indexing scheme relating to differential amplifiers the LC comprising biasing means controlled by the input signal

Recent Application in this class:
#1
20150028951
2015-01-29

Operational amplifier circuits

#2
20140266107
2014-09-18

USB regulator with current buffer to reduce compensation capacitor size and provide for wide range of ESR values of external capacitor

#3
20130200953
2013-08-08

Operational amplifier circuits

#4
20130194039
2013-08-01

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

#5
20130127533
2013-05-23

Operational amplifier having low power consumption

#6
20120169422
2012-07-05

Amplifier with non-linear current mirror

#7
20100289582
2010-11-18

Fully-differential amplifier circuit

#8
20100182087
2010-07-22

Anti-pop method and apparatus for class AB amplifiers

#9
20100013558
2010-01-21

Driving circuit capable of enhancing response speed and related method

#10
20090256636
2009-10-15

Amplifier arrangement and method for signal amplification

#11
20090224830
2009-09-10

Two-stage operational amplifier with class AB output stage

#12
20090219095
2009-09-03

Operational transconductance amplifier (OTA)

#13
20090146738
2009-06-11

Operational amplifier

#14
20090135536
2009-05-28

Over-current protection in linear regulators

#15
20090115527
2009-05-07

Output stage circuit and operational amplifier thereof

#16
20090096523
2009-04-16

Differential amplification circuit

#17
20090079503
2009-03-26

Overload recovery circuit for folded cascode amplifiers

#18
20090066415
2009-03-12

Operational amplifier having high slew rate and stability, and operating method thereof

#19
20090051431
2009-02-26

High-swing operational amplifier output stage using adaptive biasing

#20
20090027126
2009-01-29

Method for adaptive biasing of fully differential gain boosted operational amplifiers

#21
20090027122
2009-01-29

Compact low-power class AB amplifier

#22
20090021284
2009-01-22

Low voltage differential signal receiver

#23
20080272846
2008-11-06

Adaptive biasing input stage and amplifiers including the same

#24
20080272845
2008-11-06

Operational transconductance amplifier (OTA)

#25
20080265990
2008-10-30

Semiconductor circuit

#26
20080252375
2008-10-16

Voltage-clamping device and operational amplifier and design method thereof

#27
20080224777
2008-09-18

Rail-to-rail amplifier circuit and semiconductor device

#28
20080218254
2008-09-11

Reduced jitter amplification methods and apparatuses

#29
20080191804
2008-08-14

Two-stage operational amplifier with class AB output stage

#30
20080180174
2008-07-31

Output buffer with a controlled slew rate offset and source driver including the same

#31
20080136522
2008-06-12

Amplifier with current mirror bias adjust

#32
20080036538
2008-02-14

RAIL-TO-RAIL CLASS AB AMPLIFIER

#33
20080030279
2008-02-07

Circuit with Q-enhancement cell having feedback loop

#34
20080024211
2008-01-31

Multi-operational amplifier system

#35
20070273443
2007-11-29

Operational amplifier circuit

#36
20070242146
2007-10-18

Apparatus and methods providing dynamic biasing of cascode transistors in class AB amplifiers

#37
20070152722
2007-07-05

Comparator, sample-and-hold circuit, differential amplifier, two-stage amplifier, and analog-to-digital converter

#38
20070132699
2007-06-14

Output buffer for reducing EMI, source driver including the same, and display device including the same

#39
20070120599
2007-05-31

Multi-operational amplifier system

#40
20070080723
2007-04-12

Output buffer circuit

#41
20070070536
2007-03-29

Apparatus and method for controlling common mode voltage of a disk drive write head

#42
20070026815
2007-02-01

Over-current protection in linear regulators

#43
20060202721
2006-09-14

Differential comparator with extended common mode voltage range

#44
20060012431
2006-01-19

Class AB amplifier having adjustable quiescent current and output current

#45
20050162230
2005-07-28

Multi-operational amplifier system

#46
20050128000
2005-06-16

Ultra fast, low noise operational amplifier with dynamic biasing