ClassID:

220043

H03F2203/45476 - 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 CSC comprising a mirror circuit

Recent Application in this class:
#1
20250373216
2025-12-04

TRANSCONDUCTANCE AMPLIFIER, CONTROLLER CIRCUIT, AND DC/DC CONVERTER INCLUDING CONTROLLER CIRCUIT

#2
20250293648
2025-09-18

METHODS AND APPARATUS TO OPERATE A BUFFER STAGE IN AMPLIFIER CIRCUITRY

#3
20220311397
2022-09-29

Amplifier circuit and display apparatus including the same

#4
20160344355
2016-11-24

Amplifier circuit and method for adaptive amplifier biasing

#5
20150122035
2015-05-07

Detection device, sensor, electronic apparatus, and moving object

#6
20150077579
2015-03-19

Angular velocity sensor, and electronic apparatus using same

#7
20150015333
2015-01-15

Differential measurements with a large common mode input voltage

#8
20140354360
2014-12-04

High frequency module and portable terminal using same

#9
20140240044
2014-08-28

Dual path operational amplifier

#10
20140240043
2014-08-28

Amplifier circuit with improved slew rate

#11
20130043877
2013-02-21

Operational amplifier with different power supply voltages

#12
20120268204
2012-10-25

Apparatus and method for equalization

#13
20100253433
2010-10-07

Low phase noise amplifier circuit

#14
20090295486
2009-12-03

Operational amplifier having adjustable bias current and related source driver of display thereof

#15
20080238549
2008-10-02

Amplifier electronic circuit comprising a differential pair and a feedback system

#16
20080174367
2008-07-24

Tail-current steering circuit and method for rail-to-rail operational amplifier input stage

#17
20080157875
2008-07-03

Method and system for precise current matching in deep sub-micron technology

#18
20080136522
2008-06-12

Amplifier with current mirror bias adjust

#19
20080074188
2008-03-27

Output differential stage

#20
20070273443
2007-11-29

Operational amplifier circuit

#21
20070057733
2007-03-15

Low noise amplifier with switch gain control

#22
20060238249
2006-10-26

Control circuit for operational amplifier and method thereof

#23
20060132239
2006-06-22

Input tracking current mirror for a differential amplifier system

#24
20060017499
2006-01-26

Subtractor circuit and power detector arrangement having that subtractor circuit