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KR900017303A - 전압 제어 발진기 - Google Patents

전압 제어 발진기 Download PDF

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Publication number
KR900017303A
KR900017303A KR1019890005411A KR890005411A KR900017303A KR 900017303 A KR900017303 A KR 900017303A KR 1019890005411 A KR1019890005411 A KR 1019890005411A KR 890005411 A KR890005411 A KR 890005411A KR 900017303 A KR900017303 A KR 900017303A
Authority
KR
South Korea
Prior art keywords
amplifier
pass filter
output terminal
resonator
controlled oscillator
Prior art date
Application number
KR1019890005411A
Other languages
English (en)
Other versions
KR920003470B1 (en
Inventor
후미까즈 오꾸보
Original Assignee
세끼모또 다다히로
니뽄 덴끼 가부시끼가이샤
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 세끼모또 다다히로, 니뽄 덴끼 가부시끼가이샤 filed Critical 세끼모또 다다히로
Publication of KR900017303A publication Critical patent/KR900017303A/ko
Application granted granted Critical
Publication of KR920003470B1 publication Critical patent/KR920003470B1/ko

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L5/00—Automatic control of voltage, current, or power
    • 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
    • H03B5/1206—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
    • H03B5/1237—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

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

내용 없음.

Description

전압 제어 발진기
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3도는 본 발명의 한 실시예에 따른 VCO의 블록도.
제4도는 본 발명의 다른 실시예에 따른 VCO를 사용하는 PLL스테레오 복조기의 회로도.

Claims (6)

  1. 제어 전압에 의해 변할수 있는 주파수에서 발진하는 전압 제어 발진기에 있어서, 입력 및 출력단자와 상기 입력 및 출력 단자 사이에 제공되는 정궤환 회로를 갖춘 증폭기와, 상기 증폭기의 출력 단자에 결합된 공진기와, 상기 제어 전압이 공급되며 상기 제어 전압에 의해 제어되는 제어 가능 캐패시턴스 성분을 가진 회로 수단과, 상기 증폭기의 출력 단자에 캐스케이드로 상기 회로 수단에 결합된 저역 통과 필터를 구비하는 것을 특징으로 하는 전압 제어 발진기.
  2. 제1항에 있어서, 상기 공진기가 제1공진 주파수와, 상기 제1공진 주파수와는 다른 제2공진 주파수를 갖고 있으며, 상기 저역 통과 필터가 상기 제1 및 제2공진 주파수 사이의 차단 주파수를 갖고 있는 것을 특징으로 하는 전압 제어 발진기.
  3. 제1항에 있어서, 상기 회로 수단이 캐패시터를 통해 차동 형태로 접속된 제1 및 제2 트랜지스터를 포함하고 있으며, 상기 저역 통과 필터가 상기 증폭기의 출력 단자와 상기 제1 트랜지스터의 제어 전극 사이에 접속되어 있는 것을 특징으로 하는 전압 제어 발진기.
  4. 제어 전압에 의해 변할수 있는 주파수에서 발진하는 전압 제어 발진기에 있어서, 입력 및 출력 단자를 갖고 있으며 용량성 소자를 포함하는 회로 소자로 형성된 증폭기와, 고역 통과 필터와 , 상기 증폭기의 출력 단자로부터 입력 단자까지 정궤환 회로를 형성하기 위해 상기 증폭기에 상기 고역 통과 필터를 결합시키기 위한 수단과 , 공진기와, 상기 증포기의 출력 단자에 상기 공진기를 결합시키기 위한 수단, 상기 제어 전압이 공급되며 그 제어 전압 값으로 제어 가능한 리액턴스를 제공하는 가변 리액턴스 회로와, 상기 증폭기와 상기 가변 리액턴스 회로 사이에 결합된 저역 통과 필터를 구비하는 것을 특징으로 하는 전압 제어 발진기.
  5. 제4항에 있어서, 상기 공진기가 제1공진 주파수와, 상기 제1공진 주파수보다 높은 제2공진 주파수를 갖고 있으며, 상기 고역 통과 필터가 상기 제1공진 주파수보다 낮은 차단 주파수를 갖고 있고 , 상기 저역 통과 필터가 상기 제1 및 제2공진 주파수 사이의 차단 주파수를 갖고 있는 것을 특징으로 하는 전압 제어 발진기.
  6. 제4항에 있어서, 상기 증폭기가 반전 입력 단자와 비반전 입력 단자를 갖고 있으며, 상기 고역 통과 필터가 상기 출력단자와 상기 비반전 입력 단자 사이에 결합되고, 상기 반전 입력 단자에 바이어스 전압이 공급되는 것을 특징으로 하는 전압 제어 발진기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR8905411A 1988-04-25 1989-04-25 Voltage controlled oscillator KR920003470B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10328788 1988-04-25
JP63-103287 1988-04-25

Publications (2)

Publication Number Publication Date
KR900017303A true KR900017303A (ko) 1990-11-16
KR920003470B1 KR920003470B1 (en) 1992-05-01

Family

ID=14350098

Family Applications (1)

Application Number Title Priority Date Filing Date
KR8905411A KR920003470B1 (en) 1988-04-25 1989-04-25 Voltage controlled oscillator

Country Status (5)

Country Link
US (1) US4914406A (ko)
EP (1) EP0339925B1 (ko)
JP (1) JP2680890B2 (ko)
KR (1) KR920003470B1 (ko)
DE (1) DE68916841T2 (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5430342A (en) * 1993-04-27 1995-07-04 Watson Industries, Inc. Single bar type vibrating element angular rate sensor system
US5416448A (en) * 1993-08-18 1995-05-16 Sandia Corporation Oscillator circuit for use with high loss quartz resonator sensors
US6657500B1 (en) * 2002-01-08 2003-12-02 Taiwan Semiconductor Manufacturing Company Method and system of characterization and behavioral modeling of a phase-locked loop for fast mixed signal simulation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6030125B2 (ja) * 1974-07-04 1985-07-15 ソニー株式会社 可変リアクタンス回路
JPS58191506A (ja) * 1982-05-04 1983-11-08 Sanyo Electric Co Ltd 発振回路
JPS5957515A (ja) * 1982-09-27 1984-04-03 Sanyo Electric Co Ltd 可変リアクタンス回路
JPS6226908A (ja) * 1985-07-26 1987-02-04 Nec Corp 電圧制御発振回路
JPH061853B2 (ja) * 1985-12-20 1994-01-05 株式会社東芝 可変周波数発振回路

Also Published As

Publication number Publication date
US4914406A (en) 1990-04-03
KR920003470B1 (en) 1992-05-01
EP0339925A2 (en) 1989-11-02
JPH0229009A (ja) 1990-01-31
DE68916841D1 (de) 1994-08-25
JP2680890B2 (ja) 1997-11-19
EP0339925A3 (en) 1990-09-19
EP0339925B1 (en) 1994-07-20
DE68916841T2 (de) 1994-12-08

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