JPS6356824U - - Google Patents
Info
- Publication number
- JPS6356824U JPS6356824U JP15189486U JP15189486U JPS6356824U JP S6356824 U JPS6356824 U JP S6356824U JP 15189486 U JP15189486 U JP 15189486U JP 15189486 U JP15189486 U JP 15189486U JP S6356824 U JPS6356824 U JP S6356824U
- Authority
- JP
- Japan
- Prior art keywords
- local oscillation
- signal
- frequency
- intermediate frequency
- voltage
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Description
第１図はこの考案による自動周波数制御装置の
１実施例の積分回路の回路図、第２図ａ，ｂは第
１図の回路の入力電圧及び出力電圧の波形を示す
図、第３図は従来の自動周波数制御装置のブロツ
ク図、第４図は第３図の装置に用いた積分回路の
回路図である。
２……周波数混合部、４……局部発振部、１０
……ＡＦＣ回路、１２……積分回路、２０……入
力端子、２２……出力端子、２４，２６……抵抗
器、２８……コンデンサ、３０，３２……ダイオ
ード。
Figure 1 is a circuit diagram of an integrating circuit of an embodiment of an automatic frequency control device according to this invention, Figures 2a and b are diagrams showing waveforms of the input voltage and output voltage of the circuit of Figure 1, and Figure 3 is 4 is a block diagram of a conventional automatic frequency control device. FIG. 4 is a circuit diagram of an integrating circuit used in the device of FIG. 2... Frequency mixing section, 4... Local oscillation section, 10
...AFC circuit, 12 ... Integrating circuit, 20 ... Input terminal, 22 ... Output terminal, 24, 26 ... Resistor, 28 ... Capacitor, 30, 32 ... Diode.
Claims (1)
数が変化するように構成した局部発振部と、入力
信号と上記局部発振信号とを混合して上記入力信
号を中間周波信号に変換するように構成した混合
部と、正規の中間周波数に対する上記中間周波信
号の周波数の偏移を表わす誤差電圧を生成する回
路と、上記誤差電圧が入力され出力電圧を上記制
御電圧として上記局部発振部に供給する積分回路
とを含み、この積分回路が、入力端子と出力端子
との間に直列に接続した２つの抵抗器と、上記出
力端子と基準電位点との間に接続されたコンデン
サと、上記２つの抵抗器の一方の両端間に逆並列
に接続された２つのダイオードとからなことを特
徴とする自動周波数制御装置。 a local oscillation section configured to change the frequency of the local oscillation signal according to the magnitude of the control voltage; and a configuration configured to mix the input signal and the local oscillation signal to convert the input signal into an intermediate frequency signal. a mixing section that generates an error voltage representing a frequency deviation of the intermediate frequency signal with respect to a normal intermediate frequency, and an integrator that receives the error voltage and supplies the output voltage to the local oscillation section as the control voltage. The integrating circuit includes two resistors connected in series between an input terminal and an output terminal, a capacitor connected between the output terminal and a reference potential point, and the two resistors. An automatic frequency control device comprising two diodes connected in antiparallel across one end of the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986151894U JPH04585Y2 (en) | 1986-10-02 | 1986-10-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986151894U JPH04585Y2 (en) | 1986-10-02 | 1986-10-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6356824U true JPS6356824U (en) | 1988-04-15 |
| JPH04585Y2 JPH04585Y2 (en) | 1992-01-09 |
Family
ID=31069376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986151894U Expired JPH04585Y2 (en) | 1986-10-02 | 1986-10-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04585Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5830326U (en) * | 1981-08-20 | 1983-02-28 | 三洋電機株式会社 | Receiving machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1443822A (en) * | 1973-03-06 | 1976-07-28 | Ciba Geigy | Polymerisable compositions manufacture of compact bodies form ap |
-
1986
- 1986-10-02 JP JP1986151894U patent/JPH04585Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5830326U (en) * | 1981-08-20 | 1983-02-28 | 三洋電機株式会社 | Receiving machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04585Y2 (en) | 1992-01-09 |