KR970031354A - Oscillator with Temperature Stability - Google Patents
Oscillator with Temperature Stability Download PDFInfo
- Publication number
- KR970031354A KR970031354A KR1019950043291A KR19950043291A KR970031354A KR 970031354 A KR970031354 A KR 970031354A KR 1019950043291 A KR1019950043291 A KR 1019950043291A KR 19950043291 A KR19950043291 A KR 19950043291A KR 970031354 A KR970031354 A KR 970031354A
- Authority
- KR
- South Korea
- Prior art keywords
- reference voltage
- comparator
- output
- resistor
- input terminal
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/01—Details
- H03K3/011—Modifications of generator to compensate for variations in physical values, e.g. voltage, temperature
Abstract
본 발명은 충방전 레벨의 온도 특성이 저항 및 캐패시터의 역특성을 갖도록 하는 온도 변화에 안정한 특성을 갖는 발진기에 관한 것으로, 시정수를 결정하는 시정수 결정부, 상기 시정부 결정부의 온도 특성에 역비례하는 온도 특성을 갖는 로우 기준 전압 및 하이 기준 전압을 발생하는 온도 종속 기준 전압 발생부, 상기 온도 종속 기준 전압 발생부로 부터 출력되는 하이 기준 전압과 상기 시정수 발생부의 출력 전압을 비교하는 제1 비교기, 상기 온도 종속 기준 전압 발생부로 부터 출력되는 로우 기준 전압과 상기 시정수 발생부의 출력 전압을 비교하는 제2 비교기, 상기 제1 및 제2 비교기의 출력을 입력으로 하는 RS플립플롭, 상기 RS플립플롭의 출력에 따라 상기 시정수 결정부의 전하를 방전하는 방전부, 및 상기 RS플립플롭의 출력을 외부로 전달하는 출력부를 포함하여 구성되는 것을 특징으로 한다.The present invention relates to an oscillator having a stable characteristic against temperature change such that the temperature characteristic of the charge / discharge level has a reverse characteristic of a resistance and a capacitor. A temperature dependent reference voltage generator configured to generate a low reference voltage and a high reference voltage having a temperature characteristic, a first comparator comparing the high reference voltage output from the temperature dependent reference voltage generator and an output voltage of the time constant generator; A second comparator for comparing a low reference voltage output from a temperature dependent reference voltage generator and an output voltage of the time constant generator, an RS flip-flop having an output of the first and second comparators, and an output of the RS flip-flop The discharge unit for discharging the charge of the time constant determining unit, and the output of the RS flip-flop to the outside Output is characterized in that comprises section.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 종래의 RC 발진기의 구성도.1 is a block diagram of a conventional RC oscillator.
제2도는 제1도의 출력 신호 파형도.2 is an output signal waveform diagram of FIG.
제3도는 본 발명에 의한 발진기의 개략적인 구성을 나타낸 구성도.3 is a configuration diagram showing a schematic configuration of an oscillator according to the present invention.
제4도는 본 발명에 의한 발진기의 일실시예를 세부적으로 나타낸 구성도.4 is a configuration diagram showing in detail an embodiment of the oscillator according to the present invention.
제5도는 본 발명에 의한 발진기의 다른 실시예를 세부적으로 나타낸 구성도.5 is a configuration diagram showing another embodiment of the oscillator according to the present invention in detail.
제6도는 제4도의 출력신호 파형도.6 is an output signal waveform diagram of FIG.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950043291A KR0144767B1 (en) | 1995-11-23 | 1995-11-23 | Oscillator stable for temperature variation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950043291A KR0144767B1 (en) | 1995-11-23 | 1995-11-23 | Oscillator stable for temperature variation |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970031354A true KR970031354A (en) | 1997-06-26 |
KR0144767B1 KR0144767B1 (en) | 1998-08-17 |
Family
ID=19435424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950043291A KR0144767B1 (en) | 1995-11-23 | 1995-11-23 | Oscillator stable for temperature variation |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0144767B1 (en) |
-
1995
- 1995-11-23 KR KR1019950043291A patent/KR0144767B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0144767B1 (en) | 1998-08-17 |
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