KR910001427Y1 - 발진 회로 - Google Patents
발진 회로 Download PDFInfo
- Publication number
- KR910001427Y1 KR910001427Y1 KR2019870017513U KR870017513U KR910001427Y1 KR 910001427 Y1 KR910001427 Y1 KR 910001427Y1 KR 2019870017513 U KR2019870017513 U KR 2019870017513U KR 870017513 U KR870017513 U KR 870017513U KR 910001427 Y1 KR910001427 Y1 KR 910001427Y1
- Authority
- KR
- South Korea
- Prior art keywords
- circuit
- oscillation
- capacitor
- frequency
- collector
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
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
- H03B5/1231—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
- H03B2202/00—Aspects of oscillators relating to reduction of undesired oscillations
- H03B2202/02—Reduction of undesired oscillations originated from natural noise of the circuit elements of the oscillator
Landscapes
- Superheterodyne Receivers (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP157096 | 1986-10-14 | ||
JP1986157096U JPS6364139U (enrdf_load_html_response) | 1986-10-14 | 1986-10-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR880008835U KR880008835U (ko) | 1988-06-30 |
KR910001427Y1 true KR910001427Y1 (ko) | 1991-03-04 |
Family
ID=31079329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019870017513U Expired KR910001427Y1 (ko) | 1986-10-14 | 1987-10-14 | 발진 회로 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS6364139U (enrdf_load_html_response) |
KR (1) | KR910001427Y1 (enrdf_load_html_response) |
-
1986
- 1986-10-14 JP JP1986157096U patent/JPS6364139U/ja active Pending
-
1987
- 1987-10-14 KR KR2019870017513U patent/KR910001427Y1/ko not_active Expired
Also Published As
Publication number | Publication date |
---|---|
KR880008835U (ko) | 1988-06-30 |
JPS6364139U (enrdf_load_html_response) | 1988-04-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6223210A (ja) | 局部発振回路 | |
JPS639762B2 (enrdf_load_html_response) | ||
KR20000069168A (ko) | 발진기 | |
US4990866A (en) | Voltage controlled microwave oscillator using a varactor as inductance | |
JP3522283B2 (ja) | 周波数変化可能な発振器装置 | |
EP0535883A1 (en) | Voltage controlled oscillator employing negative resistance | |
US3679990A (en) | Variable frequency oscillator with substantially linear afc over tuning range | |
EP0404404A2 (en) | Crystal oscillator with broad tuning capability | |
JP2580116B2 (ja) | Ic化高周波可変周波数発振回路 | |
KR910001427Y1 (ko) | 발진 회로 | |
US5469117A (en) | Voltage-controlled frequency oscillator | |
US6384693B1 (en) | Frequency-switching oscillator and electronic device using the same | |
CA1295699C (en) | Wide range oscillator | |
US3745480A (en) | Oscillator circuit for several frequency ranges having plural feedback paths | |
US6614322B2 (en) | Voltage controlled oscillator with a transistor and a frequency variable resonant circuit | |
US4843349A (en) | UHF crystal oscillator | |
JP2521963B2 (ja) | 発振回路 | |
US2884526A (en) | Oscillator output circuit | |
GB2069788A (en) | Improvements in or relating to tuneable quartz overtone oscillators | |
EP1432116B1 (en) | Oscillation circuit for television tuner | |
KR900002652Y1 (ko) | 고주파 발진기 | |
KR0133240Y1 (ko) | 튜너의 매칭회로 | |
JPH0448006Y2 (enrdf_load_html_response) | ||
US3581237A (en) | Oscillator feedback circuit for use in uhf tuner | |
KR0137035Y1 (ko) | 발진기 안정화 회로 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
R17-X000 | Change to representative recorded |
St.27 status event code: A-3-3-R10-R17-oth-X000 |
|
UA0108 | Application for utility model registration |
St.27 status event code: A-0-1-A10-A12-nap-UA0108 |
|
UA0201 | Request for examination |
St.27 status event code: A-1-2-D10-D11-exm-UA0201 |
|
UG1501 | Laying open of application |
St.27 status event code: A-1-1-Q10-Q12-nap-UG1501 |
|
R17-X000 | Change to representative recorded |
St.27 status event code: A-3-3-R10-R17-oth-X000 |
|
E902 | Notification of reason for refusal | ||
UE0902 | Notice of grounds for rejection |
St.27 status event code: A-1-2-D10-D21-exm-UE0902 |
|
T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
P11-X000 | Amendment of application requested |
St.27 status event code: A-2-2-P10-P11-nap-X000 |
|
P13-X000 | Application amended |
St.27 status event code: A-2-2-P10-P13-nap-X000 |
|
UG1604 | Publication of application |
St.27 status event code: A-2-2-Q10-Q13-nap-UG1604 |
|
E701 | Decision to grant or registration of patent right | ||
UE0701 | Decision of registration |
St.27 status event code: A-1-2-D10-D22-exm-UE0701 |
|
REGI | Registration of establishment | ||
UR0701 | Registration of establishment |
St.27 status event code: A-2-4-F10-F11-exm-UR0701 |
|
UR1002 | Payment of registration fee |
St.27 status event code: A-2-2-U10-U11-oth-UR1002 Fee payment year number: 1 |
|
UR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-UR1001 Fee payment year number: 4 |
|
UR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-UR1001 Fee payment year number: 5 |
|
UR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-UR1001 Fee payment year number: 6 |
|
UR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-UR1001 Fee payment year number: 7 |
|
FPAY | Annual fee payment |
Payment date: 19971226 Year of fee payment: 8 |
|
UR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-UR1001 Fee payment year number: 8 |
|
R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
UN2301 | Change of applicant |
St.27 status event code: A-5-5-R10-R13-asn-UN2301 St.27 status event code: A-5-5-R10-R11-asn-UN2301 |
|
R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
LAPS | Lapse due to unpaid annual fee | ||
UC1903 | Unpaid annual fee |
St.27 status event code: A-4-4-U10-U13-oth-UC1903 Not in force date: 19990305 Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE |
|
R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
UC1903 | Unpaid annual fee |
St.27 status event code: N-4-6-H10-H13-oth-UC1903 Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE Not in force date: 19990305 |
|
R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
P22-X000 | Classification modified |
St.27 status event code: A-4-4-P10-P22-nap-X000 |