Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements

Industry

  • CPC
  • H03F3/00
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Sub Industries

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