JPS6421514U - - Google Patents

Info

Publication number
JPS6421514U
JPS6421514U JP1988091518U JP9151888U JPS6421514U JP S6421514 U JPS6421514 U JP S6421514U JP 1988091518 U JP1988091518 U JP 1988091518U JP 9151888 U JP9151888 U JP 9151888U JP S6421514 U JPS6421514 U JP S6421514U
Authority
JP
Japan
Prior art keywords
resistor
series
tuned
frequency circuit
responsive
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.)
Pending
Application number
JP1988091518U
Other languages
English (en)
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 filed Critical
Publication of JPS6421514U publication Critical patent/JPS6421514U/ja
Pending 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
    • H03J3/02—Details
    • H03J3/04—Arrangements for compensating for variations of physical values, e.g. temperature
    • 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
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only

Landscapes

  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Amplifiers (AREA)
  • Control Of Electrical Variables (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Details Of Television Scanning (AREA)

Description

【図面の簡単な説明】
第１図は発振器を同調させるための本考案によ
る回路を示す回路図、第２図はＮＴＣ―抵抗の代
わりに半導体ダイオードを使用する場合の例を示
す線図、第３図は電界効果トランジスタを使用す
る本考案による回路を示す線図である。 １……同調電源、１′……中間タツプ、２……
電圧供給源、Ｔ１……トランジスタ、Ｃ１，Ｃ５
，Ｃ７……カツプリング・コンデンサ、Ｄｒ１，
Ｄｒ２，Ｄｒ３……チヨーク、Ｄ１……同調ダイ
オード、Ｃ２，Ｃ３，Ｃ４，Ｃ６……コンデンサ
、Ｒ１〜Ｒ５，ＲＬ……抵抗、ＮＴＣ……ＮＴＣ
―抵抗、Ｂ，Ｂ……コイル、Ｄ２……スイツ
チングダイオード、Ｔ２……電界効果トランジス
タ。

Claims (1)

  1. 【実用新案登録請求の範囲】 １ 回路周波数の温度応答性周波数変動を補償す
    るため、同調ダイオードを介して同調電源に接続
    された温度応答性分圧器を具える可同調無線周波
    回路において、 前記温度応答性分圧器は電圧源と基準電位点と
    の間に接続したＮＴＣ抵抗と直列抵抗との直列接
    続を有し、前記同調ダイオードを該ＮＴＣ抵抗を
    通じて基準電位点に接続してなることを特徴とす
    る可同調無線周波回路。 ２ 前記分圧器は、ＮＴＣ抵抗と電圧源との間に
    直列に接続した可変抵抗を含み、同調電圧に応じ
    てその値を変化する如くした実用新案登録請求の
    範囲第１項記載の可同調無線周波回路。 ３ 前記可変抵抗はトランジスタを有し、該トラ
    ンジスタの可制御電極を同調電源に接続し、また
    その入出力通路をＮＴＣ抵抗と直列に配置してな
    る実用新案登録請求の範囲第２項記載の可同調無
    線周波回路。
JP1988091518U 1979-11-10 1988-07-12 Pending JPS6421514U (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2945546A DE2945546C2 (de) 1979-11-10 1979-11-10 Schaltungsanordnung für abstimmbare HF-Kreise

Publications (1)

Publication Number Publication Date
JPS6421514U true JPS6421514U (ja) 1989-02-02

Family

ID=6085725

Family Applications (2)

Application Number Title Priority Date Filing Date
JP15712180A Pending JPS5685928A (en) 1979-11-10 1980-11-10 Frequency drift compensating circuit
JP1988091518U Pending JPS6421514U (ja) 1979-11-10 1988-07-12

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP15712180A Pending JPS5685928A (en) 1979-11-10 1980-11-10 Frequency drift compensating circuit

Country Status (10)

Country Link
US (1) US4369417A (ja)
JP (2) JPS5685928A (ja)
AT (1) AT381193B (ja)
AU (1) AU534345B2 (ja)
BE (1) BE886092A (ja)
DE (1) DE2945546C2 (ja)
ES (1) ES496643A0 (ja)
FR (1) FR2469831A1 (ja)
GB (1) GB2062997B (ja)
IT (1) IT1129824B (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4402089A (en) * 1981-09-16 1983-08-30 Rca Corporation Television tuning system with electronic frequency adjustment apparatus
US4494081A (en) * 1982-05-24 1985-01-15 Rca Corporation Variable frequency U. H. F. local oscillator for a television receiver
FR2547136B1 (fr) * 1983-06-01 1985-07-12 Labo Electronique Physique Circuit de stabilisation de la frequence d'un oscillateur libre en fonction de la temperature
JPS6221304A (ja) * 1985-07-22 1987-01-29 Matsushita Electric Ind Co Ltd 局部発振器
GB2181006A (en) * 1985-09-28 1987-04-08 Motorola Ltd Two-way radios
US5136807A (en) * 1990-01-26 1992-08-11 Gro-Max Systems, Inc. Arrangement for growing plants
EP0939488A1 (en) * 1998-02-02 1999-09-01 Sony International (Europe) GmbH Voltage controlled tuning cicuit
US6991367B2 (en) * 2003-11-04 2006-01-31 Raytheon Company Integrated thermal sensor for microwave transistors

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4854850A (ja) * 1971-11-09 1973-08-01
JPS517003U (ja) * 1974-06-28 1976-01-19

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2811647A (en) * 1956-04-09 1957-10-29 Rca Corp Oscillator frequency drift compensation arrangement
FR1557474A (ja) * 1967-03-30 1969-02-14
US3428916A (en) * 1967-04-14 1969-02-18 Bendix Corp Compensated crystal oscillators
CA964735A (en) * 1971-12-16 1975-03-18 Shinichi Makino Channel selecting apparatus
JPS5087559A (ja) * 1973-12-05 1975-07-14
US4015218A (en) * 1974-05-06 1977-03-29 Inventronics, Inc. Temperature compensated solid-state oscillator
JPS5426601A (en) * 1977-08-01 1979-02-28 Pioneer Electronic Corp Temperature compensating circuit for varactor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4854850A (ja) * 1971-11-09 1973-08-01
JPS517003U (ja) * 1974-06-28 1976-01-19

Also Published As

Publication number Publication date
US4369417A (en) 1983-01-18
AU6408880A (en) 1981-08-20
ES8201375A1 (es) 1981-12-01
DE2945546C2 (de) 1983-09-29
IT8068708A0 (it) 1980-11-07
JPS5685928A (en) 1981-07-13
BE886092A (fr) 1981-05-07
IT1129824B (it) 1986-06-11
ATA549180A (de) 1986-01-15
GB2062997A (en) 1981-05-28
GB2062997B (en) 1984-01-11
FR2469831A1 (fr) 1981-05-22
AU534345B2 (en) 1984-01-19
DE2945546A1 (de) 1981-05-21
ES496643A0 (es) 1981-12-01
AT381193B (de) 1986-09-10

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