H03F2203/45338 - CPC Classification Index

ClassID:

219974 ⎘

H03F2203/45338 - 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 AAC comprising one or more series circuits of a resistor and a capacitor as feedback circuit elements

Recent Application in this class:

20210104986

Fully differential amplifier including feedforward path

20200052664

MATRIX POWER AMPLIFIER

20190386624

High-linearity variable gain amplifier with bypass path

20190288651

Matrix power amplifier

20190199304

Operational amplifier

20190115876

Power amplifier with nulling monitor circuit

20180131339

High-linearity variable gain amplifier with bypass path

20180097484

Matrix power amplifier

20160142016

Operational amplifier based circuit with compensation circuit block used for stability compensation

20130057344

DIFFERENTIAL RF AMPLIFIER

20120242408

Low noise variable gain amplifier utilizing variable feedback techniques with constant input/output impedance

20110109388

Differential RF amplifier

20070296492

Single stage balanced voltage amplifier

20060057990

Gain boosting RF gain stage with cross-coupled capacitors