KR100691371B1 - 저전력용 전압제어발진기 - Google Patents
저전력용 전압제어발진기 Download PDFInfo
- Publication number
- KR100691371B1 KR100691371B1 KR1020050098319A KR20050098319A KR100691371B1 KR 100691371 B1 KR100691371 B1 KR 100691371B1 KR 1020050098319 A KR1020050098319 A KR 1020050098319A KR 20050098319 A KR20050098319 A KR 20050098319A KR 100691371 B1 KR100691371 B1 KR 100691371B1
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- South Korea
- Prior art keywords
- voltage
- tuning
- resonant circuit
- peak detection
- controlled oscillator
- Prior art date
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- 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
- H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
- H03B5/24—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator active element in amplifier being semiconductor device
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- 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
- H03B5/1212—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 comprising a pair of transistors, wherein an output terminal of each being connected to an input terminal of the other, e.g. a cross coupled pair
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- 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
- H03B5/1218—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 generator being of the balanced type
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- 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
- H03B5/1246—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 transistors used to provide a variable capacitance
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- 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
- H03B2200/0082—Lowering the supply voltage and saving power
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- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
Description
Claims (3)
- 전원전압에 연결되고, 튜닝전압에 따른 공진 주파수를 생성하는 공진 회로부;상기 공진 회로부에 차동 크로스-커플되어 상기 공진 회로부의 공진 주파수를 발진시켜 발진신호를 출력하는 제1,제2 트랜지스터를 포함하는 차동 발진부;상기 차동 발진부의 발진신호의 피크치를 검출하고, 상기 전원전압과 검출전압을 더한 피크 검출 전압을 출력하는 피크 검출부; 및상기 튜닝전압보다 낮은 전압레벨인 제어전압을 상기 피크 검출 전압에 따라 상기 피크 검출 전압의 전압레벨을 갖는 상기 튜닝전압으로 변환하는 인버터를 구비함을 특징으로 하는 저전력용 전압제어발진기.
- 제1항에 있어서, 상기 공진 회로부는,인덕터와 커패시터로 이루어진 LC 탱크부; 및상기 LC 탱크부에 연결된 커패시터와, 상기 튜닝전압에 따라 상기 LC 탱크부와 상기 커패시터와의 연결을 온/오프 스위칭하는 스위칭 소자를 포함하는 저밀도 튜닝셀부를 포함하는 것을 특징으로 하는 저전력용 전압제어발진기.
- 제2항에 있어서, 상기 피크 검출부는,상기 공진 회로부의 일단에 연결된 제1 접속노드 및 상기 공진 회로부의 타단에 연결된 제2 접속노드 각각에 연결된 소오스 및 게이트와, 상기 저밀도 튜닝셀부의 트랜지스터의 게이트에 연결된 드레인을 갖은 MOS 트랜지스터로 이루어진 것을 특징으로 하는 저전력용 전압제어발진기.
Priority Applications (1)
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KR1020050098319A KR100691371B1 (ko) | 2005-10-18 | 2005-10-18 | 저전력용 전압제어발진기 |
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KR1020050098319A KR100691371B1 (ko) | 2005-10-18 | 2005-10-18 | 저전력용 전압제어발진기 |
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KR100691371B1 true KR100691371B1 (ko) | 2007-03-12 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100983124B1 (ko) | 2008-10-28 | 2010-09-17 | 삼성전기주식회사 | 문턱전압 조절형 전압 제어 발진기 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000023315A (ko) * | 1998-09-22 | 2000-04-25 | 윌리엄 비. 켐플러 | 쿼드라춰 출력 오실레이터 장치 |
KR20050081545A (ko) * | 2004-02-14 | 2005-08-19 | 삼성전자주식회사 | 차동 및 직교 고조파 신호를 발생하는 전압 제어 발진기 |
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2005
- 2005-10-18 KR KR1020050098319A patent/KR100691371B1/ko active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000023315A (ko) * | 1998-09-22 | 2000-04-25 | 윌리엄 비. 켐플러 | 쿼드라춰 출력 오실레이터 장치 |
KR20050081545A (ko) * | 2004-02-14 | 2005-08-19 | 삼성전자주식회사 | 차동 및 직교 고조파 신호를 발생하는 전압 제어 발진기 |
Non-Patent Citations (2)
Title |
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공개특허 제2000-0023315호 |
공개특허 제2005-0081545호 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100983124B1 (ko) | 2008-10-28 | 2010-09-17 | 삼성전기주식회사 | 문턱전압 조절형 전압 제어 발진기 |
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