ES8502822A1 - Sintonizador de television, por lo menos, para dos alcances de frecuencia - Google Patents

Sintonizador de television, por lo menos, para dos alcances de frecuencia

Info

Publication number
ES8502822A1
ES8502822A1 ES533167A ES533167A ES8502822A1 ES 8502822 A1 ES8502822 A1 ES 8502822A1 ES 533167 A ES533167 A ES 533167A ES 533167 A ES533167 A ES 533167A ES 8502822 A1 ES8502822 A1 ES 8502822A1
Authority
ES
Spain
Prior art keywords
frequency range
ranges
mixer stage
lower frequency
oscillator
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
ES533167A
Other languages
English (en)
Other versions
ES533167A0 (es
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.)
Telefunken Electronic GmbH
Original Assignee
Telefunken Electronic GmbH
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 Telefunken Electronic GmbH filed Critical Telefunken Electronic GmbH
Publication of ES533167A0 publication Critical patent/ES533167A0/es
Publication of ES8502822A1 publication Critical patent/ES8502822A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
    • H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
    • 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
    • H03B5/1231—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
    • 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
    • H03B5/1237—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 comprising means for varying the frequency of the generator
    • H03B5/124—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 comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance
    • H03B5/1243—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 comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance the means comprising voltage variable capacitance diodes
    • 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
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/004—Circuit elements of oscillators including a variable capacitance, e.g. a varicap, a varactor or a variable capacitance of a diode or 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
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/0048—Circuit elements of oscillators including measures to switch the frequency band, e.g. by harmonic selection
    • 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
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/0052—Circuit elements of oscillators including measures to switch the feedback circuit
    • 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
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/0056—Circuit elements of oscillators including a diode used for switching
    • 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
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/02—Varying the frequency of the oscillations by electronic means
    • H03B2201/0208—Varying the frequency of the oscillations by electronic means the means being an element with a variable capacitance, e.g. capacitance diode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/12—Transference of modulation from one carrier to another, e.g. frequency-changing by means of semiconductor devices having more than two electrodes

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Superheterodyne Receivers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

SINTONIZADOR DE TELEVISION, POR LO MENOS, PARA DOS ALCANCES DE FRECUENCIA.SE COMPONE DE GRADO SELECTIVO PREVIO DE UHF Y VHF I Y III (A), FILTRO BANDA DE UHF (H), GRADO MEZCLADOR DE VHF (D), AMPLIFICADOR DE F.I. DE UHF (E) DE FORMA CONOCIDA Y EL CIRCUITO PROPUESTO QUE: A) EN SEN/AL DE UHF SE ACOPLA POR C16 AL TRANSISTOR (5) DONDE LE LLEGA LA FRECUENCIA REALIMENTADA POR C9 DEL CIRCUITO RESONANTE (7) TIPO LAMBDA-MEDIO, DESACOPLANDOSE A TRAVES DE LA BOBINA (10) DE COLECTOR Y PASANDO AL AMPLIFICADOR DE F.I. DE UHF POR SU ENTRADA (11); Y B) EN SEN/AL DE VHF EL FILTRO DE UHF NO DEJA PASAR SEN/AL A C16 POR LO QUE NO CIRCULA CORRIENTE DE COLECTOR EN EL TRANSISTOR, DESACOPLANDOSE LA FRECUENCIA DE OSCILACION A TRAVES DE LAS BOBINAS (13, 14, 15) Y USANDO LA REALIMENTACION (26) DE EMISOR PARA PRODUCIR DICHA FRECUENCIA DE VHF QUE LLEGA AL GRADO MEZCLADOR DE VHF POR (11).
ES533167A 1983-06-16 1984-06-06 Sintonizador de television, por lo menos, para dos alcances de frecuencia Expired ES8502822A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3321725A DE3321725A1 (de) 1983-06-16 1983-06-16 Tuner fuer wenigstens zwei frequenzbereiche

Publications (2)

Publication Number Publication Date
ES533167A0 ES533167A0 (es) 1985-02-01
ES8502822A1 true ES8502822A1 (es) 1985-02-01

Family

ID=6201624

Family Applications (1)

Application Number Title Priority Date Filing Date
ES533167A Expired ES8502822A1 (es) 1983-06-16 1984-06-06 Sintonizador de television, por lo menos, para dos alcances de frecuencia

Country Status (9)

Country Link
EP (1) EP0129154A3 (es)
JP (1) JPS6019329A (es)
DE (1) DE3321725A1 (es)
ES (1) ES8502822A1 (es)
FI (1) FI842429A (es)
IN (1) IN160160B (es)
PT (1) PT78720B (es)
YU (1) YU103384A (es)
ZA (1) ZA844169B (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2580116B2 (ja) * 1985-12-16 1997-02-12 ソニー株式会社 Ｉｃ化高周波可変周波数発振回路
DE3850758T2 (de) * 1987-12-21 1995-03-02 Sharp Kk Bilderzeugungsgerät mit mehreren Bildverarbeitungsfunktionen.
DE4340581C1 (de) * 1993-11-29 1995-04-27 Rohde & Schwarz Frequenzconverter zum Erweitern des Grundempfangsbereiches eines Überlagerungsempfängers
DE19612439C2 (de) * 1996-03-28 2001-02-01 Siemens Ag Halbleiterspeichervorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1441714A1 (de) * 1963-04-27 1968-10-31 Imp Rundfunk Und Fernsehwerk G Abstimmeinrichtung fuer Ultra-Kurze-Wellen
FR1449972A (fr) * 1965-09-21 1966-05-06 Telefunken Patent Dispositif d'accord
DE1591364B1 (de) * 1967-04-29 1970-08-20 Philips Patentverwaltung Schaltungsanordnung zum Abstimmen
DE2158691A1 (de) * 1971-11-26 1973-05-30 Blaupunkt Werke Gmbh Oszillatoranordnung mit kapazitiver abstimmung und elektronischer bereichsumschaltung

Also Published As

Publication number Publication date
JPS6019329A (ja) 1985-01-31
FI842429A0 (fi) 1984-06-14
IN160160B (es) 1987-06-27
FI842429A (fi) 1984-12-17
PT78720B (de) 1986-07-11
PT78720A (pt) 1985-01-01
EP0129154A2 (de) 1984-12-27
ZA844169B (en) 1985-01-30
EP0129154A3 (de) 1986-04-16
ES533167A0 (es) 1985-02-01
YU103384A (en) 1987-10-31
DE3321725A1 (de) 1984-12-20

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