KR900002536A - 주파수 변조기 - Google Patents

주파수 변조기 Download PDF

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Publication number
KR900002536A
KR900002536A KR1019890009478A KR890009478A KR900002536A KR 900002536 A KR900002536 A KR 900002536A KR 1019890009478 A KR1019890009478 A KR 1019890009478A KR 890009478 A KR890009478 A KR 890009478A KR 900002536 A KR900002536 A KR 900002536A
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KR
South Korea
Prior art keywords
feedback
capacitance
transistor
transistors
anode
Prior art date
Application number
KR1019890009478A
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English (en)
Other versions
KR920010236B1 (ko
Inventor
후사히로 카메오카
노리아키 오오모토
토시히로 쇼오가키
Original Assignee
다니이 아끼오
마쯔시다덴기산교 가부시기가이샤
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Application filed by 다니이 아끼오, 마쯔시다덴기산교 가부시기가이샤 filed Critical 다니이 아끼오
Publication of KR900002536A publication Critical patent/KR900002536A/ko
Application granted granted Critical
Publication of KR920010236B1 publication Critical patent/KR920010236B1/ko

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
    • H03C3/22—Angle modulation by means of variable impedance by means of a variable reactive element the element being a semiconductor diode, e.g. varicap diode
    • H03C3/222—Angle modulation by means of variable impedance by means of a variable reactive element the element being a semiconductor diode, e.g. varicap diode using 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
    • H03B5/1206—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
    • H03B5/1209—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 having two current paths operating in a differential manner and a current source or degeneration circuit in common to both paths, e.g. a long-tailed pair.
    • 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
    • H03B2200/006—Functional aspects of oscillators
    • H03B2200/0098—Functional aspects of oscillators having a balanced output signal
    • 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
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
    • H03C3/14—Angle modulation by means of variable impedance by means of a variable reactive element simulated by circuit comprising active element with at least three electrodes, e.g. reactance-tube circuit
    • H03C3/16—Angle modulation by means of variable impedance by means of a variable reactive element simulated by circuit comprising active element with at least three electrodes, e.g. reactance-tube circuit in which the active element simultaneously serves as the active element of an oscillator

Landscapes

  • Amplitude Modulation (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Transmitters (AREA)

Abstract

내용 없음.

Description

주파수 변조기
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도는 본 발명의 제1실시예에 있어서의 주파수변조기의 구성을 도시한 회로도.
제3도는 본 발명의 제2실시예에 있어서의 주파수변조기의 구성을 도시한 회로도.

Claims (2)

  1. 차동증폭기를 구성하는 제1 및 제2의 트랜지스터와, 상기 제1 및 제2의 트랜지스터의 각각의 콜렉터와 전원단자 사이에 삽입된 제1 및 제2의 부하저항과, 제1의 트랜지스터의 콜렉터와 제2의 트랜지스터의 베이스 사이에 삽입된 제1의 귀환용량과 제2의 귀환용량의 직렬회로와, 제2의 트랜지스터의 콜렉터와 제1의 트랜지스터의 베이스 사이에 삽입된 귀환용량과 제4의 귀환용량의 직렬회로와 캐소우드가 서로 접속되고 한쪽의 애노우드가 제1의 귀환용량과 제2의 귀환용량의 접속점에 접속되고, 다른쪽의 에노우드가 제3의 귀환용량과 제4의 귀환용량의 접속점에 접속된 제1 및 제2의 가변용량 다이오우드와, 일단부가 제1의 가변용량 다이오우드의 애노우드에, 타단부가 기준전위에 접속된 제1의 공진코일과, 일단부가 제2의 가변용량 다이오우드의 애노우드에, 타단부가 기준전위에 접속된 제2의 공진코일을 갖추고, 상기 제1 및 제2의 가변용량 다이오우드의 공통 캐소우드에 변조신호를 인가하고,, 제1 및 제2의 트랜지스터의 콜렉터로부터 발진출력신호를 얻도록한 주파수변조기.
  2. 차동증폭기를 구성하는 제1 및 제2의 트랜지스터와, 상기 제1 및 제2의 트랜지스터의 각각의 콜렉터와 전원단자 사이에 삽입된 제1 및 제2의 부하저항과, 제1의 트랜지스터의 콜렉터와 제2의 트랜지스터의 베이스 사이에 삽입된 제1의 귀환용량과 제2의 귀환용량의 직렬회로와, 제2의 트랜지스터의 콜렉터와 제1의 트랜지스터의 베이스 사이에 삽입된 제3의 귀환용량과 제4의 귀환용량의 직렬회로와, 에노우드가 서로 접속되고 한쪽의 캐소우드가 제1의 귀환용량과 제2의 귀환용량의 접속점에 접속되고 다른쪽의 캐소우드가 제3의 귀환용량과 제4의 귀환용량의 접속점에 접속된 제1 및 제2의 가변용량 다이오우드와, 일단부가 제1의 가변용량 다이오우드의 캐소우드에 타단부가 기준전위에 접속된 제1의 공진코일과, 일단부가 제2의 가변용량 다이오우드의 캐소우드에, 타단부가 기준전위에 접속된 제2의 공진코일을 갖추고, 상기 제1 및 제2의 가변용량 다이오우드의 공통 에노우드에 변조신호를 인가하고, 제1 및 제2의 트랜지스터의 콜렉터로부터 발진출력신호를 얻도록한 주파수변조기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890009478A 1988-07-11 1989-07-04 주파수 변조기 KR920010236B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP63-172121 1988-07-11
JP172121 1988-07-11
JP63172121A JPH0221709A (ja) 1988-07-11 1988-07-11 周波数変調器

Publications (2)

Publication Number Publication Date
KR900002536A true KR900002536A (ko) 1990-02-28
KR920010236B1 KR920010236B1 (ko) 1992-11-21

Family

ID=15935943

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890009478A KR920010236B1 (ko) 1988-07-11 1989-07-04 주파수 변조기

Country Status (7)

Country Link
US (1) US4959625A (ko)
EP (1) EP0351153B1 (ko)
JP (1) JPH0221709A (ko)
KR (1) KR920010236B1 (ko)
AU (1) AU597201B2 (ko)
CA (1) CA1312125C (ko)
DE (1) DE68909854T2 (ko)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1034233C (zh) * 1992-09-18 1997-03-12 中国建筑科学研究院珠海科研设计部 闭合拱圈挡土结构及其施工方法
US5525937A (en) * 1992-12-28 1996-06-11 Sony Corporation Frequency conversion circuit with UHF/VHF common PLL buffer
JPH07176952A (ja) * 1993-12-20 1995-07-14 Sony Corp 発振器
DE69416802T2 (de) * 1993-12-22 1999-07-08 Matsushita Electric Ind Co Ltd FM Signal-Demodulator
JP3395482B2 (ja) * 1995-10-06 2003-04-14 ソニー株式会社 発振回路および発振方法
DE69718741T2 (de) * 1996-10-10 2003-11-13 Koninkl Philips Electronics Nv Integrierter Oszillator und einen solchen Oszillator verwendendes Funktelefon
JP3938232B2 (ja) * 1997-11-28 2007-06-27 シャープ株式会社 ケーブルモデム用チューナ
US6504443B1 (en) 2000-05-17 2003-01-07 Nec America, Inc., Common anode varactor tuned LC circuit
JP2002359519A (ja) * 2001-06-01 2002-12-13 Murata Mfg Co Ltd 電圧制御発振器およびそれを用いた電子装置
JP4365575B2 (ja) * 2002-11-20 2009-11-18 アルプス電気株式会社 テレビジョンチューナの発振回路
DE102012211502B4 (de) 2012-07-03 2015-05-13 Siemens Aktiengesellschaft Frequenzmodulator und Magnetresonanztomograph mit einem Frequenzmodulator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371288A (en) * 1965-07-19 1968-02-27 Bell & Howell Co Period modulation multivibrator circuit
SU445115A1 (ru) * 1972-10-04 1974-09-30 Предприятие П/Я Г-4115 Балансный модул тор
US4063193A (en) * 1976-10-12 1977-12-13 National Semiconductor Corporation Differential transistor pair integrated circuit oscillator with L-C tank circuit
JPS5842312A (ja) * 1981-09-07 1983-03-11 Yoshiyuki Goto 方形波発振器
US4602224A (en) * 1984-12-20 1986-07-22 Nippon Motorola Ltd. Variable capacitance reactance circuit

Also Published As

Publication number Publication date
AU3796289A (en) 1990-01-11
JPH0221709A (ja) 1990-01-24
JPH0549121B2 (ko) 1993-07-23
CA1312125C (en) 1992-12-29
EP0351153A3 (en) 1990-09-26
AU597201B2 (en) 1990-05-24
KR920010236B1 (ko) 1992-11-21
DE68909854D1 (de) 1993-11-18
DE68909854T2 (de) 1994-02-10
US4959625A (en) 1990-09-25
EP0351153A2 (en) 1990-01-17
EP0351153B1 (en) 1993-10-13

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