KR900008182B1 - Variable frequency oscillator - Google Patents
Variable frequency oscillatorInfo
- Publication number
- KR900008182B1 KR900008182B1 KR8610923A KR860010923A KR900008182B1 KR 900008182 B1 KR900008182 B1 KR 900008182B1 KR 8610923 A KR8610923 A KR 8610923A KR 860010923 A KR860010923 A KR 860010923A KR 900008182 B1 KR900008182 B1 KR 900008182B1
- Authority
- KR
- South Korea
- Prior art keywords
- variable
- current
- driving current
- circuit
- variable frequency
- Prior art date
Links
- 239000000919 ceramic Substances 0.000 abstract 2
- 230000010355 oscillation Effects 0.000 abstract 1
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
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
- H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
- H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
-
- 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
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
- H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
- H03B5/36—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device
- H03B5/366—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being semiconductor device and comprising means for varying the frequency by a variable voltage or current
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60-286926 | 1985-12-20 | ||
JP60286926A JPH061853B2 (ja) | 1985-12-20 | 1985-12-20 | 可変周波数発振回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR870006709A KR870006709A (ko) | 1987-07-14 |
KR900008182B1 true KR900008182B1 (en) | 1990-11-05 |
Family
ID=17710747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR8610923A KR900008182B1 (en) | 1985-12-20 | 1986-12-19 | Variable frequency oscillator |
Country Status (3)
Country | Link |
---|---|
US (1) | US4745375A (ko) |
JP (1) | JPH061853B2 (ko) |
KR (1) | KR900008182B1 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4914406A (en) * | 1988-04-25 | 1990-04-03 | Nec Corporation | Voltage controlled oscillator free from free-run oscillating frequency adjustment |
JPH0691413B2 (ja) * | 1989-03-20 | 1994-11-14 | 株式会社東芝 | リアクタンス制御回路 |
JPH02133011U (ko) * | 1989-04-05 | 1990-11-05 | ||
US5444422A (en) * | 1994-09-20 | 1995-08-22 | Zenith Electronics Corp. | Low phase noise high frequency integrated oscillator with minimum pins |
Family Cites Families (4)
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 |
JPS5253645A (en) * | 1975-10-28 | 1977-04-30 | Victor Co Of Japan Ltd | Automated frequency phase control circuit |
JPS5957515A (ja) * | 1982-09-27 | 1984-04-03 | Sanyo Electric Co Ltd | 可変リアクタンス回路 |
CA1215437A (en) * | 1983-05-25 | 1986-12-16 | Sony Corporation | Variable frequency oscillating circuit |
-
1985
- 1985-12-20 JP JP60286926A patent/JPH061853B2/ja not_active Expired - Lifetime
-
1986
- 1986-12-19 US US06/943,801 patent/US4745375A/en not_active Expired - Lifetime
- 1986-12-19 KR KR8610923A patent/KR900008182B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPH061853B2 (ja) | 1994-01-05 |
US4745375A (en) | 1988-05-17 |
JPS62145902A (ja) | 1987-06-30 |
KR870006709A (ko) | 1987-07-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20061031 Year of fee payment: 17 |
|
EXPY | Expiration of term |