KR960012709A - Voltage controlled oscillator - Google Patents

Voltage controlled oscillator Download PDF

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Publication number
KR960012709A
KR960012709A KR1019940023382A KR19940023382A KR960012709A KR 960012709 A KR960012709 A KR 960012709A KR 1019940023382 A KR1019940023382 A KR 1019940023382A KR 19940023382 A KR19940023382 A KR 19940023382A KR 960012709 A KR960012709 A KR 960012709A
Authority
KR
South Korea
Prior art keywords
inductor
resistor
controlled oscillator
diode
cathode terminal
Prior art date
Application number
KR1019940023382A
Other languages
Korean (ko)
Other versions
KR970008799B1 (en
Inventor
조차현
Original Assignee
이종수
엘지전자부품 주식회사
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.)
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Publication date
Application filed by 이종수, 엘지전자부품 주식회사 filed Critical 이종수
Priority to KR94023382A priority Critical patent/KR970008799B1/en
Publication of KR960012709A publication Critical patent/KR960012709A/en
Application granted granted Critical
Publication of KR970008799B1 publication Critical patent/KR970008799B1/en

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Classifications

    • 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
    • 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

Abstract

본 발명은 음성변조의 감도편차를 개선하는 전압제어 발진기에 관한 것으로서, 제어전압이 일단으로 입력되는 인덕터와, 음성신호가 일단으로 입력되는 제1저항과 상기 인덕터의 타단에 캐소드 단자가 접속되고 상기 제1저항의 타단에 애노드 단자가 접속된 제1바렉터 다이오드와, 상기 인덕터의 타단에 캐소드 단자가 접속되고 애노드 단자는 접지된 제2바렉터 다이오드와, 상기 제1바렉터 다이오드의 애노드 단자에 일단이 접속되고 타단 온 접지된 캐패시터에 병렬로 접속된 제2저항과, 상기 제1배렉터 다이오드의 캐소드 단자에 일단이 접속되고 타단은 접지된 공진자로 구성된 공진회로부와, 상기 공진자의 일단과 접속되어 입력되는 제어 전압에 따른 발진 주파수를 출력하는 발진회로부로 구성된 것을 특징으로 한다.The present invention relates to a voltage-controlled oscillator for improving the sensitivity deviation of voice modulation, wherein an inductor to which a control voltage is input to one end, a first resistor to which an audio signal is input to one end, and a cathode terminal are connected to the other end of the inductor. A first varistor diode having an anode terminal connected to the other end of a first resistor, a cathode terminal connected to the other end of the inductor, and an anode terminal connected to a grounded second varistor diode and an anode terminal of the first varistor diode; A second resistor connected in parallel to a capacitor connected at one end and grounded on the other end, a resonant circuit part including one end connected to a cathode terminal of the first varactor diode and the other end connected to a ground, and one end connected to the resonator; And an oscillation circuit unit for outputting an oscillation frequency according to the input control voltage.

본 발명의 전압제어 발진기는 제어전압에 결정되는 발진 주파수에 따른 음성변조의 감도편차가 개선되어 무선 송수신기에서 고감도의 음성신호가 수신 가능하다는 효과가 있다.The voltage controlled oscillator of the present invention has an effect that the sensitivity deviation of the voice modulation according to the oscillation frequency determined by the control voltage is improved, so that a high sensitivity voice signal can be received by the wireless transceiver.

Description

전압제어 발진기Voltage controlled oscillator

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제 3 도는 본 발명의 전압제어 발진기의 회로도.3 is a circuit diagram of a voltage controlled oscillator of the present invention.

Claims (2)

제어전압이 일단으로 입력되는 인덕터와, 음성신호가 일단으로 입력되는 제 1 저항과, 상기 인덕터의 타단에 캐소드 단자가 접속되고 상기 제 1 저항의 타단에 애노드 단자가 접속된 제 1 바렉터 다이오드와, 상기 인덕터의 타단에 캐소드 단자가 접속되고 애노드 단자는 접지된 제 2 바렉터 다이오드와, 상기 제 1 바렉터 다이오드의 애노드 단자에 일단이 접속되고 타단은 접지된 캐패시터와, 상기 캐패시터에 병렬로 접속된 제 2 저항과, 상기 제 1 바렉터 다이오드의 캐소드 단자에 일단이 접속되고 타단은 접지된 공진자로 구성된 공진회로부와, 상기 공진자의 일단과 접속되어 입력되는 제어전압에 따른 발진 주파수를 출력하는 발진회로부로 구성된 것을 특징으로 하는 전압제어 발진기.An inductor having a control voltage input to one end, a first resistor having a voice signal input to one end, a first varistor diode having a cathode terminal connected to the other end of the inductor and an anode terminal connected to the other end of the first resistor; A second varistor diode having a cathode terminal connected to the other end of the inductor and an anode terminal grounded; An oscillator outputting an oscillation frequency according to a control voltage inputted by a second resistor connected to one end of the first varistor diode, one end of which is connected to a cathode terminal of the first varactor diode and the other end of which is grounded Voltage controlled oscillator, characterized in that consisting of a circuit portion. 제 1 항에 있어서, 상기 제 2 바렉터 다이오드와 접지 사이에 접속되어 음성신호의 감도편차를 조절하고 발진 주파수의 변화폭을 조절하는 캐패시터를 포함하여 구성된 것을 특징으로 하는 전압제어 발진기.The voltage controlled oscillator of claim 1, further comprising a capacitor connected between the second varactor diode and ground to adjust a sensitivity deviation of a voice signal and to adjust a change range of an oscillation frequency. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR94023382A 1994-09-15 1994-09-15 Voltage control oscillator KR970008799B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR94023382A KR970008799B1 (en) 1994-09-15 1994-09-15 Voltage control oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR94023382A KR970008799B1 (en) 1994-09-15 1994-09-15 Voltage control oscillator

Publications (2)

Publication Number Publication Date
KR960012709A true KR960012709A (en) 1996-04-20
KR970008799B1 KR970008799B1 (en) 1997-05-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR94023382A KR970008799B1 (en) 1994-09-15 1994-09-15 Voltage control oscillator

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100414924B1 (en) * 1998-12-22 2004-02-14 서창전기통신 주식회사 Radio frequency transmission and reception system using voltage control diode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100414924B1 (en) * 1998-12-22 2004-02-14 서창전기통신 주식회사 Radio frequency transmission and reception system using voltage control diode

Also Published As

Publication number Publication date
KR970008799B1 (en) 1997-05-29

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