H03F3/3038 - CPC Classification Index

ClassID:

219268 ⎘

H03F3/3038 - CPC Classification

Classification description:

Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements; Single-ended push-pull amplifiers ; Phase-splitters therefor with field-effect transistors PMOS SEPP output stages

Sub-classes:

H03F3/304 » {using differential amplifiers as phase-splitting element} 3
H03F3/3042 » {with asymmetric control, i.e. one control branch containing a supplementary phase inverting stage} 8

Recent Application in this class:

20250226805

2025-07-10

AMPLIFIER CIRCUIT FOR MICROPHONE, MICROPHONE CIRCUIT AND ELECTRONIC DEVICE

20240235492

2024-07-11

FULLY INTEGRATED CMOS MULTIPLE MOSFET-STACKED DOUBLE PUSH-PULL RF POWER AMPLIFIER

20240136982

2024-04-25

FULLY INTEGRATED CMOS MULTIPLE MOSFET-STACKED DOUBLE PUSH-PULL RF POWER AMPLIFIER

20180052481

2018-02-22

METHOD FOR ULTRA-LOW-POWER AND HIGH-PRECISION REFERENCE GENERATION

20090184603

2009-07-23

Drive circuit