ES375367A1 - Un circuito para sintonizar simultaneamente una pluralidad de circuitos resonantes sobre diferentes frecuencias - Google Patents

Un circuito para sintonizar simultaneamente una pluralidad de circuitos resonantes sobre diferentes frecuencias

Info

Publication number
ES375367A1
ES375367A1 ES375367A ES375367A ES375367A1 ES 375367 A1 ES375367 A1 ES 375367A1 ES 375367 A ES375367 A ES 375367A ES 375367 A ES375367 A ES 375367A ES 375367 A1 ES375367 A1 ES 375367A1
Authority
ES
Spain
Prior art keywords
reference voltage
circuits
different
circuit
voltage
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES375367A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of ES375367A1 publication Critical patent/ES375367A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
    • H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
    • H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/28—Continuous tuning of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range

Landscapes

  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Superheterodyne Receivers (AREA)
  • Control Of Electrical Variables (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
ES375367A 1969-01-15 1970-01-12 Un circuito para sintonizar simultaneamente una pluralidad de circuitos resonantes sobre diferentes frecuencias Expired ES375367A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79146869A 1969-01-15 1969-01-15

Publications (1)

Publication Number Publication Date
ES375367A1 true ES375367A1 (es) 1972-05-01

Family

ID=25153831

Family Applications (1)

Application Number Title Priority Date Filing Date
ES375367A Expired ES375367A1 (es) 1969-01-15 1970-01-12 Un circuito para sintonizar simultaneamente una pluralidad de circuitos resonantes sobre diferentes frecuencias

Country Status (7)

Country Link
US (1) US3617899A (es)
JP (1) JPS4933881B1 (es)
BR (1) BR7016032D0 (es)
DE (1) DE2001660B2 (es)
ES (1) ES375367A1 (es)
FR (1) FR2028403A1 (es)
GB (1) GB1293122A (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408347A (en) * 1977-07-29 1983-10-04 Texas Instruments Incorporated High-frequency channel selector having fixed bandpass filters in the RF section
IT1165325B (it) * 1978-10-16 1987-04-22 Licentia Gmbh Disposizione di comando per ottenere un sincronismo fra la frequenza dell'oscillatore e la frequenza di risonanza del circuito di entrata di un ricevitore ad eterodina
US4288875A (en) * 1980-02-08 1981-09-08 Rca Corporation Controlled local oscillator with apparatus for extending its frequency range
IT1150715B (it) * 1982-03-19 1986-12-17 Marco Clementi Autoradio con dispositivi che ne permettono la manovra a distanza
US4703292A (en) * 1985-03-04 1987-10-27 Sony Corporation Tuning circuit apparatus
US4837852A (en) * 1985-06-17 1989-06-06 Toko, Inc. Electronic tuning circuit for AM receiver which is easy to effect tracking adjustment
WO2023172591A2 (en) * 2022-03-07 2023-09-14 Incaendium Initiative Corporation Electrical power generation and architecture structure for controlling an acoustic fire suppression system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008084A (en) * 1958-08-04 1961-11-07 Gilbert N Cotton Voltage regulating system
US3354397A (en) * 1964-02-12 1967-11-21 Standard Kollsman Ind Inc Voltage variable diode capacitance tunable circuit for television apparatus

Also Published As

Publication number Publication date
US3617899A (en) 1971-11-02
FR2028403A1 (es) 1970-10-09
DE2001660A1 (de) 1971-02-11
BR7016032D0 (pt) 1973-01-04
DE2001660B2 (de) 1972-12-28
JPS4933881B1 (es) 1974-09-10
GB1293122A (en) 1972-10-18

Similar Documents

Publication Publication Date Title
ES353243A1 (es) Una disposicion de circuito para sintonizar un receptor en al menos dos bandas de frecuencias.
AT346402B (de) Abstimmbare hochfrequenz-eingangsschaltungs- anordnung fuer einen fernsehempfaenger
ES375367A1 (es) Un circuito para sintonizar simultaneamente una pluralidad de circuitos resonantes sobre diferentes frecuencias
ES376437A1 (es) Un circuito oscilador.
ES332191A1 (es) Disposicion de amplificador de alta frecuencia con circuitos de conductores.
GB1094010A (en) Improved inductive reactance circuit
ES411024A1 (es) Inversor estatico de potencia, en configuracion paralelo- serie con tension de salida regulable.
ES326923A1 (es) Dispositivo electronico para la medida de pequeños desplazamientos.
ES401469A1 (es) Perfeccionamientos introducidos en circuitos osciladores para, por lo menos, dos margenes de frecuencia.
ES370781A1 (es) Una disposicion de circuito resonante sintonizable
ES352109A1 (es) Disposicion de conexion para la compensacion de la influen-cia de la temperatura sobre la capacidad de diodos de capa- cidad.
GB967018A (en) Tuner unit
ES373549A1 (es) Un circuito para reducir el ruido de fase de un oscilador.
GB894979A (en) Frequency converter
AU410417B2 (en) Tuning arrangement with resonant circuits tunable by capacitance diodes
ES298422A1 (es) Disposicion de circuito para afinado de sintonia del circuito oscilador sinusoide de un oscilador de linea en receptores de television
GB940955A (en) Improvements in or relating to mixing circuit arrangements
ES330746A1 (es) Una disposicion de transmision telefonica.
DK110133C (da) Strømkredsarrangement til finafstemning af sinussvingningskredsen for en linieoscillator i fjernsynsapparater.
ES175170U (es) Sintonizador combinado para frecuencias muy elevadas y ultraelevadas
ES314311A3 (es) Perfeccionamientos en los dispositivos sintonizadores de frecuencia modulada
ES321951A3 (es) Un dispositivo sintonizador para televisiën
ES310504A1 (es) Un dispositivo uhf (muy alta frecuencia) de variacion mixta, inductiva y capacitiva para televisores
ES333629A1 (es) Dispositivo de conexion para oscilaciones electricas para el ajuste de frecuencia en varios alcances de frecuencia con diodos de capacidad.
AU283167B2 (en) Circuit arrangement to balance frequency modifications ofan oscillator caused by supply voltage changes