ClassID:

219665

H03F2200/498 - CPC Classification

Classification description:

Indexing scheme relating to amplifiers A resistor being added in the source circuit of a transistor amplifier stage as degenerating element

Recent Application in this class:
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Cascode amplifier bias circuits

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Cascode amplifier bias circuits

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Cascode amplifier bias circuits

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LOW NOISE FRONT-END FOR A HEART RATE MONITOR USING PHOTO-PLETHYSMOGRAPHY

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20190158031
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#13
20190115876
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Power amplifier with nulling monitor circuit

#14
20180316318
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Differential amplifier with extended bandwidth and THD reduction

#15
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Methods and apparatuses for differential signal termination

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20180198420
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Gate drive circuit and method of operating the same

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Matrix power amplifier

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20180083578
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Cascode amplifier bias circuits

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20170359039
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Source-degenerated amplification stage with rail-to-rail output swing

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Class AB common-source amplifier with constant transconductance

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20170141748
2017-05-18

Amplifier system, controller of main amplifier and associated control method

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20160365859
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Wideband highly-linear low output impedance D2S buffer circuit

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Gain invariant impedance feedback amplifier

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Bias point setting for third order linearity optimization of class A amplifier

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20120046004
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High performance transmitter preamplification chain with calibration feedback

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20120008240
2012-01-12

High efficiency amplifier with reduced electromagnetic interference

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20090309663
2009-12-17

Power amplifiers having improved protection against avalanche current

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20090245425
2009-10-01

Antenna device, demodulating device and receiving device

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20080303593
2008-12-11

MuGFET circuit for increasing output resistance

#31
20080156982
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Base line restoration circuit

#32
20080094041
2008-04-24

Switched capacitor controller and method therefor

#33
20070247535
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Solid-state image sensing device and image sensing device

#34
15582439
2018-05-22

Differential amplifier with extended bandwidth and THD reduction