JPS6183334U - - Google Patents
Info
- Publication number
- JPS6183334U JPS6183334U JP16890984U JP16890984U JPS6183334U JP S6183334 U JPS6183334 U JP S6183334U JP 16890984 U JP16890984 U JP 16890984U JP 16890984 U JP16890984 U JP 16890984U JP S6183334 U JPS6183334 U JP S6183334U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- variable resistance
- oscillation
- superimposed signal
- resistance means
- 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.)
- Granted
Links
- 230000010355 oscillation Effects 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000003321 amplification Effects 0.000 claims 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Description
第１図は本考案の自動周波数制御回路の回路図
、第２図は本考案の動作原理を説明する等価回路
図、第３図は本考案の動作を説明するに供した可
変抵抗手段の摺動接点の位置対ＡＦＣ電圧の特性
曲線、第４図は本考案の動作を説明するに供した
非線形の発振回路の発振周波数対同調電圧の特性
曲線、第５図は従来の自動周波数制御回路の回路
図である。
ＥＴ…同調用定電圧、VAFC…弁別出力電圧（自
動周波数制御電圧）、Ｄ１…電圧依存型素子（可
変容量ダイオード）、１…演算増幅器、３…発振
回路。
Figure 1 is a circuit diagram of the automatic frequency control circuit of the present invention, Figure 2 is an equivalent circuit diagram explaining the operating principle of the present invention, and Figure 3 is a diagram of the variable resistance means used to explain the operation of the present invention. FIG. 4 shows the characteristic curve of the oscillation frequency versus tuning voltage of a nonlinear oscillation circuit used to explain the operation of the present invention, and FIG. 5 shows the characteristic curve of the conventional automatic frequency control circuit. It is a circuit diagram. ET...constant voltage for tuning, VAFC...discrimination output voltage (automatic frequency control voltage), D1 ...voltage dependent element (variable capacitance diode), 1...operational amplifier, 3...oscillation circuit.
Claims (1)
する増幅手段と、この増幅手段により増幅された
重畳信号を分圧する可変抵抗手段と、この可変抵
抗手段の摺動量に基づく分圧値でその発振周波数
の制御される電圧依存型素子を含む発振回路とを
具備してなる自動周波数制御回路。 An amplification means for amplifying a superimposed signal of the tuning constant voltage and the AFC voltage, a variable resistance means for dividing the voltage of the superimposed signal amplified by the amplification means, and oscillation thereof with a divided voltage value based on the amount of sliding of the variable resistance means. An automatic frequency control circuit comprising an oscillation circuit including a voltage-dependent element whose frequency is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984168909U JPH0221800Y2 (en) | 1984-11-07 | 1984-11-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984168909U JPH0221800Y2 (en) | 1984-11-07 | 1984-11-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6183334U true JPS6183334U (en) | 1986-06-02 |
| JPH0221800Y2 JPH0221800Y2 (en) | 1990-06-12 |
Family
ID=30726669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984168909U Expired JPH0221800Y2 (en) | 1984-11-07 | 1984-11-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0221800Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59134935U (en) * | 1983-02-28 | 1984-09-08 | 三洋電機株式会社 | AFT voltage superimposition circuit |
-
1984
- 1984-11-07 JP JP1984168909U patent/JPH0221800Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59134935U (en) * | 1983-02-28 | 1984-09-08 | 三洋電機株式会社 | AFT voltage superimposition circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0221800Y2 (en) | 1990-06-12 |
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