H03F3/45165 - CPC Classification Index

ClassID:

219358 ⎘

H03F3/45165 - CPC Classification

Classification description:

Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit Complementary cross coupled types

Recent Application in this class:

20250309875

POWER-EFFICIENT CLOCK BUFFERS

20250105809

AMPLIFIER WITH PRE-DRIVER HAVING CROSS-COUPLED TRANSISTORS

20230353095

Linearization of differential RF power amplifier by bias control using cross-coupling components

20230275550

Biased amplifier

20210288624

Biased amplifier

20200395896

Dynamic amplifier

20200204129

Biased amplifier

20190288646

Power amplifier for millimeter wave devices

20190190453

Power amplifier for millimeter wave devices

20190115885

Biased amplifier

20180054200

Differential logic with low voltage supply

16234595

Operational transconductance amplifier

13737777

High dynamic range precision variable amplitude controller