BE491203A - - Google Patents

Info

Publication number
BE491203A
BE491203A BE491203DA BE491203A BE 491203 A BE491203 A BE 491203A BE 491203D A BE491203D A BE 491203DA BE 491203 A BE491203 A BE 491203A
Authority
BE
Belgium
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE491203A publication Critical patent/BE491203A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1206—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification
    • H03B5/1221—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification the amplifier comprising multiple amplification stages connected in cascade
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
    • H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/56—Modifications of input or output impedances, not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Amplifiers (AREA)
BE491203D 1948-11-06 BE491203A (sv)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US58684A US2585077A (en) 1948-11-06 1948-11-06 Control of impedance of semiconductor amplifier circuits
US127439A US2550518A (en) 1948-11-06 1949-11-15 Control of impedance of semiconductor amplifier circuits
US127440A US2541322A (en) 1948-11-06 1949-11-15 Control of impedance of semiconductor amplifier circuits

Publications (1)

Publication Number Publication Date
BE491203A true BE491203A (sv)

Family

ID=27369524

Family Applications (1)

Application Number Title Priority Date Filing Date
BE491203D BE491203A (sv) 1948-11-06

Country Status (6)

Country Link
US (3) US2585077A (sv)
BE (1) BE491203A (sv)
DE (1) DE826148C (sv)
FR (1) FR993834A (sv)
GB (1) GB700237A (sv)
NL (1) NL148695B (sv)

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2660624A (en) * 1949-02-24 1953-11-24 Rca Corp High input impedance semiconductor amplifier
US2662124A (en) * 1949-06-01 1953-12-08 Bell Telephone Labor Inc Transistor amplifier circuit
US2647957A (en) * 1949-06-01 1953-08-04 Bell Telephone Labor Inc Transistor circuit
US2662122A (en) * 1949-06-01 1953-12-08 Bell Telephone Labor Inc Two-way transistor electrical transmission system
BE497791A (sv) * 1949-08-30
US2691074A (en) * 1949-08-31 1954-10-05 Rca Corp Amplifier having frequency responsive variable gain
US2675433A (en) * 1950-04-27 1954-04-13 Rca Corp Degenerative amplifier
US2708720A (en) * 1950-06-07 1955-05-17 Bell Telephone Labor Inc Transistor trigger circuit
US2691075A (en) * 1950-06-27 1954-10-05 Rca Corp Transistor amplifier with high undistorted output
US2663766A (en) * 1950-06-28 1953-12-22 Bell Telephone Labor Inc Transistor amplifier with conjugate input and output circuits
US2644859A (en) * 1950-08-05 1953-07-07 Rca Corp Stabilized semiconductor amplifier circuits
BE505739A (sv) * 1950-09-12
US2666817A (en) * 1950-11-09 1954-01-19 Bell Telephone Labor Inc Transistor amplifier and power supply therefor
US2663796A (en) * 1950-11-09 1953-12-22 Bell Telephone Labor Inc Low-input impedance transistor circuits
US2662123A (en) * 1951-02-24 1953-12-08 Bell Telephone Labor Inc Electrical transmission system including bilateral transistor amplifier
US2691077A (en) * 1951-03-31 1954-10-05 Rca Corp Transistor power amplifier
US2794863A (en) * 1951-07-20 1957-06-04 Bell Telephone Labor Inc Semiconductor translating device and circuit
NL90591C (sv) * 1951-08-02
BE511224A (sv) * 1951-09-13
US2680160A (en) * 1951-09-15 1954-06-01 Bell Telephone Labor Inc Bias circuit for transistor amplifiers
US2730576A (en) * 1951-09-17 1956-01-10 Bell Telephone Labor Inc Miniaturized transistor amplifier circuit
US2757243A (en) * 1951-09-17 1956-07-31 Bell Telephone Labor Inc Transistor circuits
BE518900A (sv) * 1952-06-23
US2728053A (en) * 1952-08-26 1955-12-20 Bell Telephone Labor Inc Transmission network using transistors
US2885494A (en) * 1952-09-26 1959-05-05 Bell Telephone Labor Inc Temperature compensated transistor amplifier
US2761916A (en) * 1952-11-15 1956-09-04 Rca Corp Self-biasing semi-conductor amplifier circuits and the like
NL89693C (sv) * 1952-11-15
US2762875A (en) * 1952-11-15 1956-09-11 Rca Corp Stabilized cascade-connected semi-conductor amplifier circuits and the like
DE971601C (de) * 1952-11-26 1959-02-26 Siemens Ag Mehrstufiger Transistorverstaerker
BE525856A (sv) * 1953-01-22
US2921264A (en) * 1953-01-27 1960-01-12 Sundt Engineering Company Protection system for meters or the like
BE526444A (sv) * 1953-02-13
NL110766C (sv) * 1953-03-14
US2771584A (en) * 1953-04-15 1956-11-20 Bell Telephone Labor Inc Frequency-controlled transistor oscillators
NL177985B (nl) * 1953-04-29 Balcke Duerr Ag Inrichting voor het verwijden van buiseinden binnen een buisschijf.
US2897448A (en) * 1953-06-23 1959-07-28 Bell Telephone Labor Inc Circuit for measuring alpha of transistors
US2760007A (en) * 1953-08-06 1956-08-21 Bell Telephone Labor Inc Two-stage transistor feedback amplifier
DE977479C (de) * 1953-08-20 1966-08-04 Siemens Ag Schaltungsanordnung zur Frequenzmodulation
US2905815A (en) * 1953-08-26 1959-09-22 Rca Corp Transistor, operating in collector saturation carrier-storage region, converting pulse amplitude to pulse duration
US2871376A (en) * 1953-12-31 1959-01-27 Bell Telephone Labor Inc Temperature sensitive transistor control circuit
NL194334A (sv) * 1954-01-28
US2785231A (en) * 1954-02-25 1957-03-12 Bell Telephone Labor Inc Telephone set with amplifier
BE536128A (sv) * 1954-03-01
US2842624A (en) * 1954-03-05 1958-07-08 Hallicrafters Co Transistor amplifier circuit
US2845497A (en) * 1954-03-22 1958-07-29 E A Myers & Sons Inc Transistorized amplifier circuits
DE1049905B (de) * 1954-04-10 1959-02-05 Electric &. Musical Industries Limited, Hayes, Middlesex (Großbritannien) Schaltung zur Verstärkung der Signale einer Bildaufnahmeröhre
US2873359A (en) * 1954-06-10 1959-02-10 Paul W Cooper Transistorized radio receiver
US2774875A (en) * 1954-07-27 1956-12-18 Gen Electric Wave generating network
BE540597A (sv) * 1954-08-17
US2861258A (en) * 1954-09-30 1958-11-18 Ibm Transistor amplifier circuit
US2897720A (en) * 1954-12-02 1959-08-04 Franklin F Offner Light meter
US2864062A (en) * 1955-02-15 1958-12-09 Gen Electric Negative resistance using transistors
US2966979A (en) * 1955-05-11 1961-01-03 Clark Controller Co Transistor control systems
US2824177A (en) * 1955-10-11 1958-02-18 Martin Hearing Aid Company Hearing aid amplifier
US3215851A (en) * 1955-10-25 1965-11-02 Philco Corp Emitter follower with nonsaturating driver
DE1125487B (de) * 1956-06-29 1962-03-15 Siemens Ag Transistorverstaerkerstufe in Basis- oder Emitterschaltung
US2922032A (en) * 1956-10-04 1960-01-19 Gen Dynamies Corp Superregenerative detector
US2930996A (en) * 1956-12-14 1960-03-29 Gen Electric Active element impedance network
US2999169A (en) * 1956-12-28 1961-09-05 Bell Telephone Labor Inc Non-saturating transistor pulse amplifier
BE563970A (sv) * 1957-01-15
US3108263A (en) * 1957-09-10 1963-10-22 Bendix Corp Error detecting and indicating system
NL248990A (sv) * 1959-03-05
DE1132976B (de) * 1959-10-23 1962-07-12 Wilhelm Heibl Fa Transistorverstaerker zur hohen Verstaerkung tiefer Frequenzen, insbesondere fuer Elektrokardiographen
US3168650A (en) * 1960-08-15 1965-02-02 Western Geophysical Co Low noise transistor circuit
US3168656A (en) * 1962-06-18 1965-02-02 Tektronix Inc Transmission line circuit having termination impedance which includes emitter junction of transistor
US3231755A (en) * 1962-09-10 1966-01-25 Northern Electric Co Remote volume control
US3573615A (en) * 1967-09-14 1971-04-06 Atomic Energy Commission System for measuring a pulse charge
US3972002A (en) * 1974-12-30 1976-07-27 Bell Telephone Laboratories, Incorporated Dual feedback amplifier

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1778085A (en) * 1926-11-24 1930-10-14 American Telephone & Telegraph Distortionless amplifying system
US1877140A (en) * 1928-12-08 1932-09-13 Lilienfeld Julius Edgar Amplifier for electric currents
US1949383A (en) * 1930-02-13 1934-02-27 Ind Dev Corp Electronic device
NL145843B (nl) * 1948-04-23 Merck & Co Inc Werkwijze voor het bereiden van derivaten van 3-hydroxy alfa-(1-aminoethyl)benzylalcohol; werkwijze ter bereiding van farmaceutische preparaten, alsmede de door toepassing van die werkwijze verkregen voorwerpen.
NL75792C (sv) * 1948-05-19

Also Published As

Publication number Publication date
DE826148C (de) 1951-12-27
NL148695B (nl)
US2541322A (en) 1951-02-13
US2585077A (en) 1952-02-12
US2550518A (en) 1951-04-24
FR993834A (fr) 1951-11-07
GB700237A (en) 1953-11-25

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