ClassID:

219534

H03F2200/141 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers the feedback circuit of the amplifier stage comprising a resistor and a capacitor in series, at least one of them being an active one

Recent Application in this class:
#1
20260063674
2026-03-05

Improving Linearity and Mitigating Process Variations for a Radio-frequency Power Detector

#2
20250202446
2025-06-19

DIFFERENTIAL AMPLIFIER

#3
20250015764
2025-01-09

MULTIBAND DOHERTY POWER AMPLIFIER

#4
20240097620
2024-03-21

SYSTEM AND METHOD OF PROTECTING A LOW VOLTAGE CAPACITOR OF AN ERROR AMPLIFIER OPERATING IN A HIGHER VOLTAGE DOMAIN

#5
20220131505
2022-04-28

Active feedback wideband low-noise amplifier

#6
20210111682
2021-04-15

Signal output circuit

#7
20200313633
2020-10-01

Amplifier with a compensator with a network of at least third order

#8
20200150252
2020-05-14

Trans-impedance amplifier (TIA) for ultrasound devices

#9
20190377100
2019-12-12

METAL DETECTOR FOR BURIED AND CORRODED PIPELINE

#10
20180234062
2018-08-16

Triangular-wave voltage generator and corresponding class-D amplifier circuit

#11
20130214863
2013-08-22

Front-end system for radio devices

#12
20120105158
2012-05-03

Feedback amplifier

#13
20110298533
2011-12-08

Semiconductor device having a bias resistor circuit

#14
20110109389
2011-05-12

Amplifier circuit, integrated circuit and radio frequency communication unit

#15
20110057728
2011-03-10

Amplifier circuit, integrated circuit and radio frequency communication unit

#16
20090315624
2009-12-24

Active resistor used in a feedback amplifier particularly useful for proximity communication

#17
20080055005
2008-03-06

Feedback-type variable gain amplifier and method of controlling the same

#18
20070096826
2007-05-03

Methods and system of feedback in amplifier circuit

#19
20060197599
2006-09-07

Variable gain wideband amplifier

#20
20060114059
2006-06-01

Power amplifier with controllable feedback loop

#21
20050270104
2005-12-08

Broadband amplifier with improved noise figure and distortion characteristics