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Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
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CPC
H03F3/00
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Parent Industries
H
ELECTRICITY
H03
Electronic circuits
H03F
AMPLIFIERS
Current Industry
H03F3/00
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
Sub Industries
H03F3/005
using switched capacitors
H03F3/02
with tubes only
H03F3/04
with semiconductor devices only
H03F3/06
using hole storage effect
H03F3/08
controlled by light
H03F3/082
with FET's
H03F3/085
using opto-couplers between stages
H03F3/087
with IC amplifier blocks
H03F3/10
with diodes
H03F3/12
with Esaki diodes
H03F3/14
with amplifying devices having more than three electrodes or more than two PN junctions
H03F3/16
with field-effect devices
H03F3/165
with junction-FET's
H03F3/181
Low frequency amplifiers
H03F3/183
with semiconductor devices only
H03F3/185
with field-effect devices
H03F3/1855
with junction-FET devices
H03F3/187
in integrated circuits
H03F3/189
High frequency amplifiers
H03F3/19
with semiconductor devices only
H03F3/191
Tuned amplifiers
H03F3/193
with field-effect devices
H03F3/1935
with junction-FET devices
H03F3/195
in integrated circuits
H03F3/20
Power amplifiers
H03F3/21
with semiconductor devices only
H03F3/211
using a combination of several amplifiers
H03F3/213
in integrated circuits
H03F3/217
Class D power amplifiers Switching amplifiers
H03F3/2171
with field-effect devices
H03F3/2173
of the bridge type
H03F3/2175
using analogue-digital or digital-analogue conversion
H03F3/2176
Class E amplifiers
H03F3/2178
using more than one switch or switching amplifier in parallel or in series
H03F3/22
with tubes only
H03F3/24
of transmitter output stages
H03F3/245
with semiconductor devices only
H03F3/26
Push-pull amplifiers Phase-splitters therefor
H03F3/265
with field-effect transistors only
H03F3/28
with tubes only
H03F3/30
Single-ended push-pull [SEPP] amplifiers Phase-splitters therefor
H03F3/3001
with field-effect transistors
H03F3/3008
Bifet SEPP output stages
H03F3/301
CMOS common drain output SEPP amplifiers
H03F3/3011
with asymmetrical driving of the end stage
H03F3/3013
using a common drain driving stage
H03F3/3015
using a common source driving stage
H03F3/3016
with symmetrical driving of the end stage
H03F3/3018
using opamps as driving stages
H03F3/302
using two SEPP driving stages
H03F3/3022
CMOS common source output SEPP amplifiers
H03F3/3023
with asymmetrical driving of the end stage
H03F3/3025
using a common drain driving stage
H03F3/3027
using a common source driving stage
H03F3/3028
with symmetrical driving of the end stage
H03F3/303
using opamps as driving stages
H03F3/3032
using two SEPP driving stages
H03F3/3033
NMOS SEPP output stages
H03F3/3035
using differential amplifiers as phase-splitting elements
H03F3/3037
with asymmetric control
H03F3/3038
PMOS SEPP output stages
H03F3/304
using differential amplifiers as phase-splitting element
H03F3/3042
with asymmetric control
H03F3/3044
Junction FET SEPP output stages
H03F3/3045
with asymmetrical driving of the end stage
H03F3/3047
using a common drain driving stage
H03F3/3049
using a common source driving stage
H03F3/305
with symmetrical driving of the end stage
H03F3/3052
using opamps as driving stages
H03F3/3054
using two SEPP driving stages
H03F3/3055
Parallelled mixed SEPP stages
H03F3/3057
with asymmetrical driving of the end stage
H03F3/3059
with symmetrical driving of the end stage
H03F3/3061
Bridge type
H03F3/3062
with asymmetrical driving of the end stage
H03F3/3064
with symmetrical driving of the end stage
H03F3/3066
the collectors of complementary power transistors being connected to the output
H03F3/3067
with asymmetrical driving of the end stage
H03F3/3069
the emitters of complementary power transistors being connected to the output
H03F3/3071
with asymmetrical driving of the end stage
H03F3/3072
using Darlington transistors
H03F3/3074
using parallel power transistors
H03F3/3076
with symmetrical driving of the end stage
H03F3/3077
using Darlington transistors
H03F3/3079
using parallel power transistors
H03F3/3081
Duplicated single-ended push-pull arrangements
H03F3/3083
the power transistors being of the same type
H03F3/3084
one of the power transistors being controlled by the output signal
H03F3/3086
two power transistors being controlled by the input signal
H03F3/3088
with asymmetric control
H03F3/3089
comprising field-effect transistors in the control circuit
H03F3/3091
comprising two complementary transistors for phase-splitting
H03F3/3093
comprising a differential amplifier as phase-splitting element
H03F3/3094
Phase splitters therefor
H03F3/3096
using a single transistor with output on emitter and collector as phase splitter
H03F3/3098
using a transformer as phase splitter
H03F3/34
Dc amplifiers in which all stages are dc-coupled
H03F3/343
with semiconductor devices only
H03F3/3432
with bipolar transistors
H03F3/3435
using Darlington amplifiers
H03F3/3437
with complementary transistors
H03F3/345
with field-effect devices
H03F3/3455
with junction-FET's
H03F3/347
in integrated circuits
H03F3/36
with tubes only
H03F3/38
Dc amplifiers with modulator at input and demodulator at output Modulators or demodulators specially adapted for use in such amplifiers
H03F3/387
with semiconductor devices only
H03F3/393
with field-effect devices
H03F3/40
with tubes only
H03F3/42
Amplifiers with two or more amplifying elements having their dc paths in series with the load, the control electrode of each element being excited by at least part of the input signal
H03F3/423
with MOSFET's
H03F3/426
with junction-FET's
H03F3/44
with tubes only
H03F3/45
Differential amplifiers
H03F3/45071
with semiconductor devices only
H03F3/45076
characterised by the way of implementation of the active amplifying circuit in the differential amplifier
H03F3/4508
using bipolar transistors as the active amplifying circuit
H03F3/45085
Long tailed pairs
H03F3/45089
Non-folded cascode stages
H03F3/45094
Folded cascode stages
H03F3/45098
PI types
H03F3/45103
Non-folded cascode stages
H03F3/45107
Folded cascode stages
H03F3/45112
Complementary long tailed pairs having parallel inputs and being supplied in parallel
H03F3/45116
Non-folded cascode stages
H03F3/45121
Folded cascode stages
H03F3/45125
Complementary PI types having parallel inputs and being supplied in parallel
H03F3/4513
Non-folded cascode stages
H03F3/45134
Folded cascode stages
H03F3/45139
Complementary long tailed pairs having parallel inputs and being supplied in series
H03F3/45143
Non-folded cascode stages
H03F3/45147
Folded cascode stages
H03F3/45152
Complementary PI types having parallel inputs and being supplied in series
H03F3/45156
Non-folded cascode stages
H03F3/45161
Folded cascode stages
H03F3/45165
Complementary cross coupled types
H03F3/4517
Complementary non-cross coupled types
H03F3/45174
Mirror types
H03F3/45179
using MOSFET transistors as the active amplifying circuit
H03F3/45183
Long tailed pairs
H03F3/45188
Non-folded cascode stages
H03F3/45192
Folded cascode stages
H03F3/45197
Pl types
H03F3/45201
Non-folded cascode stages
H03F3/45206
Folded cascode stages
H03F3/4521
Complementary long tailed pairs having parallel inputs and being supplied in parallel
H03F3/45215
Non-folded cascode stages
H03F3/45219
Folded cascode stages
H03F3/45224
Complementary Pl types having parallel inputs and being supplied in parallel
H03F3/45228
Non-folded cascode stages
H03F3/45233
Folded cascode stages
H03F3/45237
Complementary long tailed pairs having parallel inputs and being supplied in series
H03F3/45242
Non-folded cascode stages
H03F3/45246
Folded cascode stages
H03F3/45251
Complementary Pl types having parallel inputs and being supplied in series
H03F3/45255
Non-folded cascode stages
H03F3/4526
Folded cascode stages
H03F3/45264
Complementary cross coupled types
H03F3/45269
Complementary non-cross coupled types
H03F3/45273
Mirror types
H03F3/45278
using BiFET transistors as the active amplifying circuit
H03F3/45282
Long tailed pairs
H03F3/45286
Non-folded cascode stages
H03F3/45291
Folded cascode stages
H03F3/45295
Pl types
H03F3/453
Non-folded cascode stages
H03F3/45304
Folded cascode stages
H03F3/45309
Complementary long tailed pairs having parallel inputs and being supplied in parallel
H03F3/45313
Non-folded cascode stages
H03F3/45318
Folded cascode stages
H03F3/45322
Complementary Pl types having parallel inputs and being supplied in parallel
H03F3/45327
Non-folded cascode stages
H03F3/45331
Folded cascode stages
H03F3/45336
Complementary long tailed pairs having parallel inputs and being supplied in series
H03F3/4534
Non-folded cascode stages
H03F3/45345
Folded cascode stages
H03F3/45349
Complementary Pl types having parallel inputs and being supplied in series
H03F3/45354
Non-folded cascode stages
H03F3/45358
Folded cascode stages
H03F3/45363
Complementary cross coupled types
H03F3/45367
Complementary non-cross coupled types
H03F3/45372
Mirror types
H03F3/45376
using junction FET transistors as the active amplifying circuit
H03F3/45381
Long tailed pairs
H03F3/45385
Non-folded cascode stages
H03F3/4539
Folded cascode stages
H03F3/45394
Pl types
H03F3/45399
Non-folded cascode stages
H03F3/45403
Folded cascode stages
H03F3/45408
Complementary long tailed pairs having parallel inputs and being supplied in parallel
H03F3/45412
Non-folded cascode stages
H03F3/45417
Folded cascode stages
H03F3/45421
Complementary Pl types having parallel inputs and being supplied in parallel
H03F3/45426
Non-folded cascode stages
H03F3/4543
Folded cascode stages
H03F3/45434
Complementary long tailed pairs having parallel inputs and being supplied in series
H03F3/45439
Non-folded cascode stages
H03F3/45443
Folded cascode stages
H03F3/45448
Complementary Pl types having parallel inputs and being supplied in series
H03F3/45452
Non-folded cascode stages
H03F3/45457
Folded cascode stages
H03F3/45461
Complementary cross coupled types
H03F3/45466
Complementary non-cross coupled types
H03F3/4547
Mirror types
H03F3/45475
using IC blocks as the active amplifying circuit
H03F3/45479
characterised by the way of common mode signal rejection
H03F3/45484
in differential amplifiers with bipolar transistors as the active amplifying circuit
H03F3/45488
by using feedback means
H03F3/45493
Measuring at the loading circuit of the differential amplifier
H03F3/45497
Controlling the input circuit of the differential amplifier
H03F3/45502
Controlling the common emitter circuit of the differential amplifier
H03F3/45506
Controlling the active amplifying circuit of the differential amplifier
H03F3/45511
Controlling the loading circuit of the differential amplifier
H03F3/45515
Measuring at the active amplifying circuit of the differential amplifier
H03F3/4552
Controlling the input circuit of the differential amplifier
H03F3/45524
Controlling the common emitter circuit of the differential amplifier
H03F3/45529
Controlling the active amplifying circuit of the differential amplifier
H03F3/45533
Measuring at the common emitter circuit of the differential amplifier
H03F3/45538
Controlling the input circuit of the differential amplifier
H03F3/45542
Controlling the common emitter circuit of the differential amplifier
H03F3/45547
by using feedforward means
H03F3/45551
Measuring at the input circuit of the differential amplifier
H03F3/45556
Controlling the input circuit of the differential amplifier
H03F3/4556
Controlling the common emitter circuit of the differential amplifier
H03F3/45565
Controlling the active amplifying circuit of the differential amplifier
H03F3/45569
Controlling the loading circuit of the differential amplifier
H03F3/45573
Measuring at the active amplifying circuit of the differential amplifier
H03F3/45578
Controlling the loading circuit of the differential amplifier
H03F3/45582
Measuring at the common emitter circuit of the differential amplifier
H03F3/45587
Controlling the active amplifying circuit of the differential amplifier
H03F3/45591
Controlling the loading circuit of the differential amplifier
H03F3/45596
by offset reduction
H03F3/456
by using a feedback circuit
H03F3/45605
using switching means
H03F3/45609
by using a feedforward circuit
H03F3/45614
using switching means
H03F3/45618
by using balancing means
H03F3/45623
using switching means
H03F3/45627
by using cross switches
H03F3/45632
in differential amplifiers with FET transistors as the active amplifying circuit
H03F3/45636
by using feedback means
H03F3/45641
Measuring at the loading circuit of the differential amplifier
H03F3/45645
Controlling the input circuit of the differential amplifier
H03F3/4565
Controlling the common source circuit of the differential amplifier
H03F3/45654
Controlling the active amplifying circuit of the differential amplifier
H03F3/45659
Controlling the loading circuit of the differential amplifier
H03F3/45663
Measuring at the active amplifying circuit of the differential amplifier
H03F3/45668
Controlling the input circuit of the differential amplifier
H03F3/45672
Controlling the common source circuit of the differential amplifier
H03F3/45677
Controlling the active amplifying circuit of the differential amplifier
H03F3/45681
Measuring at the common source circuit of the differential amplifier
H03F3/45686
Controlling the input circuit of the differential amplifier
H03F3/4569
Controlling the common source circuit of the differential amplifier
H03F3/45695
by using feedforward means
H03F3/45699
Measuring at the input circuit of the differential amplifier
H03F3/45704
Controlling the input circuit of the differential amplifier
H03F3/45708
Controlling the common source circuit of the differential amplifier
H03F3/45713
Controlling the active amplifying circuit of the differential amplifier
H03F3/45717
Controlling the loading circuit of the differential amplifier
H03F3/45721
Measuring at the active amplifying circuit of the differential amplifier
H03F3/45726
Controlling the loading circuit of the differential amplifier
H03F3/4573
Measuring at the common source circuit of the differential amplifier
H03F3/45735
Controlling the active amplifying circuit of the differential amplifier
H03F3/45739
Controlling the loading circuit of the differential amplifier
H03F3/45744
by offset reduction
H03F3/45748
by using a feedback circuit
H03F3/45753
using switching means
H03F3/45757
by using a feedforward circuit
H03F3/45762
using switching means
H03F3/45766
by using balancing means
H03F3/45771
using switching means
H03F3/45775
by using cross switches
H03F3/4578
in differential amplifiers with BiFET transistors as the active amplifying circuit
H03F3/45784
by using feedback means
H03F3/45789
Measuring at the loading circuit of the differential amplifier
H03F3/45793
Controlling the input circuit of the differential amplifier
H03F3/45798
Controlling the common source circuit of the differential amplifier
H03F3/45802
Controlling the active amplifying circuit of the differential amplifier
H03F3/45807
Controlling the loading circuit of the differential amplifier
H03F3/45811
Measuring at the active amplifying circuit of the differential amplifier
H03F3/45816
Controlling the input circuit of the differential amplifier
H03F3/4582
Controlling the common source circuit of the differential amplifier
H03F3/45825
Controlling the active amplifying circuit of the differential amplifier
H03F3/45829
Measuring at the common source circuit of the differential amplifier
H03F3/45834
Controlling the input circuit of the differential amplifier
H03F3/45838
Controlling the common source circuit of the differential amplifier
H03F3/45843
by using feedforward means
H03F3/45847
Measuring at the input circuit of the differential amplifier
H03F3/45852
Controlling the input circuit of the differential amplifier
H03F3/45856
Controlling the common source circuit of the differential amplifier
H03F3/4586
Controlling the active amplifying circuit of the differential amplifier
H03F3/45865
Controlling the loading circuit of the differential amplifier
H03F3/45869
Measuring at the active amplifying circuit of the differential amplifier
H03F3/45874
Controlling the loading circuit of the differential amplifier
H03F3/45878
Measuring at the common source circuit of the differential amplifier
H03F3/45883
Controlling the active amplifying circuit of the differential amplifier
H03F3/45887
Controlling the loading circuit of the differential amplifier
H03F3/45892
by offset reduction
H03F3/45896
by using a feedback circuit
H03F3/45901
using switching means
H03F3/45905
by using a feedforward circuit
H03F3/4591
using switching means
H03F3/45914
by using balancing means
H03F3/45919
using switching means
H03F3/45923
by using cross switches
H03F3/45928
using IC blocks as the active amplifying circuit
H03F3/45932
by using feedback means
H03F3/45937
Measuring at the loading circuit of the differential amplifier
H03F3/45941
Controlling the input circuit of the differential amplifier
H03F3/45946
Controlling the loading circuit of the differential amplifier
H03F3/4595
by using feedforward means
H03F3/45955
Measuring at the input circuit of the differential amplifier
H03F3/45959
Controlling the input circuit of the differential amplifier
H03F3/45964
Controlling the loading circuit of the differential amplifier
H03F3/45968
by offset reduction
H03F3/45973
by using a feedback circuit
H03F3/45977
using switching means
H03F3/45982
by using a feedforward circuit
H03F3/45986
using switching means
H03F3/45991
by using balancing means
H03F3/45995
using switching means
H03F3/46
Reflex amplifiers
H03F3/48
with tubes only
H03F3/50
Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element
H03F3/505
with field-effect devices
H03F3/52
with tubes only
H03F3/54
Amplifiers using transit-time effect in tubes or semiconductor devices
H03F3/55
with semiconductor devices only
H03F3/56
using klystrons
H03F3/58
using travelling-wave tubes
H03F3/60
Amplifiers in which coupling networks have distributed constants
H03F3/601
using FET's
H03F3/602
Combinations of several amplifiers
H03F3/604
using FET's
H03F3/605
Distributed amplifiers
H03F3/607
using FET's
H03F3/608
Reflection amplifiers
H03F3/62
Two-way amplifiers
H03F3/64
with tubes only
H03F3/66
Amplifiers simultaneously generating oscillations of one frequency and amplifying signals of another frequency
H03F3/68
Combinations of amplifiers
H03F3/70
Charge amplifiers
H03F3/72
Gated amplifiers
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