ClassID:

219789

H03F2203/30111 - 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 single-ended push-pull [SEPP]; Phase-splitters therefor A resistor being added in the push stage of the SEPP amplifier

Recent Application in this class:
#1
20210376797
2021-12-02

LOW-NOISE AMPLIFIER SUPPORTING MULTI CARRIER OPERATIONS

#2
20190165612
2019-05-30

WIRELESS ELECTRIC FIELD POWER TRANSFER SYSTEM, METHOD, TRANSMITTER AND RECEIVER THEREFOR

#3
20170085230
2017-03-23

Class AB amplifier with bias control

#4
20160204752
2016-07-14

Apparatus and method in apparatus

#5
20160134240
2016-05-12

Method and circuitry for CMOS transconductor linearization

#6
20150054584
2015-02-26

Class AB signal generation apparatus

#7
20140184340
2014-07-03

Integrated circuit for use in a hybrid output stage

#8
20130271219
2013-10-17

Apparatus and methods for frequency compensation of an amplifier

#9
20130181778
2013-07-18

High fidelity current dumping audio amplifier with combined feedback-clean feedback

#10
20130169364
2013-07-04

Amplifier and transceiver including the amplifier

#11
20130147427
2013-06-13

Wireless resonant electric field power transfer system and method using high Q-factor coils

#12
20120092070
2012-04-19

Acoustic pseudo-triode characteristic amplification device and acoustic pseudo-triode characteristic push-pull amplification device

#13
20110163811
2011-07-07

Fast class AB output stage

#14
20110147465
2011-06-23

RFID device

#15
20100271129
2010-10-28

Output circuit using analog amplifier

#16
20100164618
2010-07-01

Feedback network for cascaded amplifiers

#17
20090256634
2009-10-15

Output distortion cancellation circuit

#18
20090245541
2009-10-01

Audio Power Amplifier with Feedback-Shifting Technology

#19
20090231033
2009-09-17

Amplifier circuit

#20
20090206934
2009-08-20

Amplifier auto biasing

#21
20090115528
2009-05-07

Low cost high performance power amplifier utilizing two-stage-included local negative feedback with feedback-shifting technology

#22
20080211483
2008-09-04

Electronic device with an amplifier output stage and an over-current detection means

#23
20070159254
2007-07-12

Power amplifier circuit and test apparatus