JPH048521U - - Google Patents
Info
- Publication number
- JPH048521U JPH048521U JP4927890U JP4927890U JPH048521U JP H048521 U JPH048521 U JP H048521U JP 4927890 U JP4927890 U JP 4927890U JP 4927890 U JP4927890 U JP 4927890U JP H048521 U JPH048521 U JP H048521U
- Authority
- JP
- Japan
- Prior art keywords
- applying
- variable capacitance
- oscillation
- capacitance diode
- oscillation frequency
- 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.)
- Pending
Links
- 230000010355 oscillation Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 6
Description
第１図は本考案の回路構成例を示す図、第２図
はその他の回路構成例を示す図、第３図は従来の
回路構成例を示す図、第４図はその発振周波数の
調整を説明するための図、第５図はその他の回路
構成例を示す図、第６図はその発振周波数の調整
を説明するための図である。
Ｑ……発振用トランジスタ、Ｔ１′，Ｔ２′…
…共振回路、Ｄ，Ｄ１，Ｄ２……可変容量ダイオ
ード、Ｉ１……制御電圧供給端子、Ｉ２……調整
用電圧供給端子。
Fig. 1 is a diagram showing an example of the circuit configuration of the present invention, Fig. 2 is a diagram showing another example of the circuit configuration, Fig. 3 is a diagram showing an example of the conventional circuit configuration, and Fig. 4 is a diagram showing the adjustment of the oscillation frequency. FIG. 5 is a diagram for explaining another circuit configuration example, and FIG. 6 is a diagram for explaining adjustment of the oscillation frequency. Q...Oscillation transistor, T1 ', T2 ' ...
... Resonance circuit, D, D 1 , D 2 ... Variable capacitance diode, I 1 ... Control voltage supply terminal, I 2 ... Adjustment voltage supply terminal.
Claims (1)
御電圧を印加することによつて発振周波数を制御
するようにした発振回路において、前記可変容量
ダイオードのアノードに発振周波数調整用電圧を
印加する手段を設けたことを特徴とする発振回路
。 In an oscillation circuit in which the oscillation frequency is controlled by applying a control voltage to the cathode of a variable capacitance diode of the resonant circuit, means for applying an oscillation frequency adjustment voltage to the anode of the variable capacitance diode is provided. An oscillation circuit featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4927890U JPH048521U (en) | 1990-05-11 | 1990-05-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4927890U JPH048521U (en) | 1990-05-11 | 1990-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH048521U true JPH048521U (en) | 1992-01-27 |
Family
ID=31566831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4927890U Pending JPH048521U (en) | 1990-05-11 | 1990-05-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH048521U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50107511U (en) * | 1974-02-04 | 1975-09-03 | ||
| JPS5185870A (en) * | 1975-01-25 | 1976-07-27 | Takahashi Jugen | TEIKIKENIRE NOSEIZOHOHO |
| WO2008090882A1 (en) * | 2007-01-23 | 2008-07-31 | Nec Corporation | Voltage-controlled oscillator, phase-locked loop circuit and clock data reproducing circuit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6310616B2 (en) * | 1983-06-10 | 1988-03-08 | Nippon Denki Kk |
-
1990
- 1990-05-11 JP JP4927890U patent/JPH048521U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6310616B2 (en) * | 1983-06-10 | 1988-03-08 | Nippon Denki Kk |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50107511U (en) * | 1974-02-04 | 1975-09-03 | ||
| JPS5185870A (en) * | 1975-01-25 | 1976-07-27 | Takahashi Jugen | TEIKIKENIRE NOSEIZOHOHO |
| JPS5653362B2 (en) * | 1975-01-25 | 1981-12-18 | ||
| WO2008090882A1 (en) * | 2007-01-23 | 2008-07-31 | Nec Corporation | Voltage-controlled oscillator, phase-locked loop circuit and clock data reproducing circuit |