JPS60144330U - automatic frequency control device - Google Patents
automatic frequency control deviceInfo
- Publication number
- JPS60144330U JPS60144330U JP3179584U JP3179584U JPS60144330U JP S60144330 U JPS60144330 U JP S60144330U JP 3179584 U JP3179584 U JP 3179584U JP 3179584 U JP3179584 U JP 3179584U JP S60144330 U JPS60144330 U JP S60144330U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- control device
- frequency control
- controlled oscillator
- automatic 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
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の周波数制御装置を説明するためのブロッ
ク図、第２図及び第３図は第１図に示した従来技術の動
作及び欠点を説明するためのグラフ、第４図はこの考案
の一実施例を示す接続図、第５図はこの考案に用いたイ
コライザの特性を説明するためのグラフ、第６図はこの
考案の自動周波数制御装置の動作特性を説明するだめの
グラフである。
１：電圧制御発振器、２：カウンタ、３：ＤＡ変換器、
４：アナログ減算器、５：積分器、６：出力端子、８：
基準電圧源、９：イコライザ。
７３ 図 −
■
↑
−１−
７１′FIG. 1 is a block diagram for explaining a conventional frequency control device, FIGS. 2 and 3 are graphs for explaining the operation and drawbacks of the conventional technology shown in FIG. 1, and FIG. 4 is a block diagram for explaining the conventional frequency control device. A connection diagram showing one embodiment, FIG. 5 is a graph for explaining the characteristics of the equalizer used in this invention, and FIG. 6 is a graph for explaining the operating characteristics of the automatic frequency control device of this invention. . 1: Voltage controlled oscillator, 2: Counter, 3: DA converter,
4: Analog subtractor, 5: Integrator, 6: Output terminal, 8:
Reference voltage source, 9: Equalizer. 73 Figure - ■ ↑ -1- 71'
Claims (1)
数するカウンタと、 Ｃこのカウンタの計数結果の下位桁分をアナログ量に変
換するＤＡ変換器と、 Ｄ このＤＡ変換器の出力と基準電圧源の基準電圧との
偏差を求めるアナログ減算器と、Ｅ このアナログ減算
器の出力側に設けられダイオードの逆並列接続によって
構成したイコライザ゛と、 Ｆ このイコライザの出力を積分しその積分電圧を上記
電圧制御型発振器の制電圧として与える積分器と、 から成る自動周波数制御装置。[Claims for Utility Model Registration] A: A voltage-controlled oscillator; B: A counter that counts the oscillation signal of this voltage-controlled oscillator in units of time; and C: A DA that converts the lower digits of the counting result of this counter into an analog quantity. A converter; D an analog subtracter for determining the deviation between the output of this DA converter and the reference voltage of the reference voltage source; E an equalizer provided on the output side of this analog subtracter and configured by an anti-parallel connection of diodes. , F an integrator that integrates the output of the equalizer and provides the integrated voltage as a damping voltage for the voltage-controlled oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3179584U JPS60144330U (en) | 1984-03-05 | 1984-03-05 | automatic frequency control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3179584U JPS60144330U (en) | 1984-03-05 | 1984-03-05 | automatic frequency control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60144330U true JPS60144330U (en) | 1985-09-25 |
Family
ID=30532721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3179584U Pending JPS60144330U (en) | 1984-03-05 | 1984-03-05 | automatic frequency control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60144330U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5282120A (en) * | 1975-12-29 | 1977-07-09 | Matsushita Electric Ind Co Ltd | Horizontal afc circuit of tv picture receiver |
-
1984
- 1984-03-05 JP JP3179584U patent/JPS60144330U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5282120A (en) * | 1975-12-29 | 1977-07-09 | Matsushita Electric Ind Co Ltd | Horizontal afc circuit of tv picture receiver |
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