Patents-Review.com
ClassID:

220151 ⎘

H03F2203/45692 - 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 one or more resistors in series with a capacitor coupled to the LC by feedback

Recent Application in this class:
#1
20260058610
2026-02-26

TRACKING AMPLIFIER FOR INDUCTIVE LOADS

 #2
20250183859
2025-06-05

TRANS-IMPEDANCE AMPLIFIER FOR ULTRASOUND DEVICE AND RELATED APPARATUS AND METHODS

 #3
20240120891
2024-04-11

Trans-impedance amplifier for ultrasound device and related apparatus and methods

 #4
20210384872
2021-12-09

Trans-impedance amplifier for ultrasound device and related apparatus and methods

 #5
20200395905
2020-12-17

MULTI-STAGE AND FEED FORWARD COMPENSATED COMPLEMENTARY CURRENT FIELD EFFECT TRANSISTOR AMPLIFIERS

 #6
20200014349
2020-01-09

LOW NOISE TRANS-IMPEDANCE AMPLIFIERS BASED ON COMPLEMENTARY CURRENT-INJECTION FIELD-EFFECT TRANSISTOR DEVICES

 #7
20190334491
2019-10-31

CONTROL CIRCUIT

 #8
20190140603
2019-05-09

Trans-impedance amplifier for ultrasound device and related apparatus and methods

 #9
20190115876
2019-04-18

Power amplifier with nulling monitor circuit

 #10
20180226930
2018-08-09

Multi-stage and feed forward compensated complementary current field effect transistor amplifiers

 #11
20180219519
2018-08-02

Low noise trans-impedance amplifiers based on complementary current field-effect transistor devices

 #12
20180152156
2018-05-31

Operational amplifier and differential amplifying circuit thereof

 #13
20180123524
2018-05-03

Single-ended amplifier circuit with improved chopper configuration

 #14
20170163225
2017-06-08

Trans-impedance amplifier for ultrasound device and related apparatus and methods

 #15
20160373077
2016-12-22

Operational amplifier circuit

 #16
20150077579
2015-03-19

Angular velocity sensor, and electronic apparatus using same

 #17
20140112418
2014-04-24

Receiver using impedance shaping

 #18
20110128277
2011-06-02

Operational amplifier and liquid crystal drive device using same, as well as parameter setting circuit, semiconductor device, and power supply unit

 #19
20100327974
2010-12-30

Operational amplifiers having low-power unconditionally-stable common-mode feedback

 #20
20090284315
2009-11-19

Operational amplifier

 #21
20080111627
2008-05-15

Analog circuit, electronic instrument, and operational amplifier

 #22
20070194847
2007-08-23

Operational amplifier

 #23
20070188231
2007-08-16

Multi-path common mode feedback for high speed multi-stage amplifiers

 #24
20060017499
2006-01-26

Subtractor circuit and power detector arrangement having that subtractor circuit

 #25
20050248404
2005-11-10

Variable-gain amplifier having error amplifier with constant loop gain