JPS5946011U - oscillation circuit - Google Patents
oscillation circuitInfo
- Publication number
- JPS5946011U JPS5946011U JP14027982U JP14027982U JPS5946011U JP S5946011 U JPS5946011 U JP S5946011U JP 14027982 U JP14027982 U JP 14027982U JP 14027982 U JP14027982 U JP 14027982U JP S5946011 U JPS5946011 U JP S5946011U
- Authority
- JP
- Japan
- Prior art keywords
- oscillation circuit
- capacitors
- oscillation
- capacitance
- switch
- 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
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図面は本考案の実施例を示すもので、第１図は発振回路
の一例を示す回路図、第２図は第１図の発振回路を備え
た周波数変換器を用いたテレビ受信システムの系統図、
第３図は異なる構成の発振。
回路を示す回路図。
２・・・・・・トランジスタ、８・・・・・・コイル、
９・・・・・・スイッチ、１０・・・・・・第１のコン
デンサ、１１・・・・・・第２のコンデンサ、１２・・
・・・・第３のコンデンサ、１４・・・・・・出力端。The drawings show an embodiment of the present invention. Fig. 1 is a circuit diagram showing an example of an oscillation circuit, and Fig. 2 is a system diagram of a television reception system using a frequency converter equipped with the oscillation circuit shown in Fig. 1. ,
Figure 3 shows oscillations with different configurations. A circuit diagram showing a circuit. 2...transistor, 8...coil,
9... Switch, 10... First capacitor, 11... Second capacitor, 12...
...Third capacitor, 14... Output end.
Claims (1)
振させて発振周波数を決める発振回路において、上記コ
ンデンサは複数個設けて複数種の発振周波数が得られる
ようにし、しかも上記スイッチが上記コンデンサのうち
のいずれを選択してもその状態での発振周波数が温度に
対して略一定となるように、上記コンデンサには各々温
度の増加に対して容量が減少する温度係数を持ったもの
を用いであることを特徴とする発振回路。In an oscillation circuit that determines an oscillation frequency by resonating a capacitor selected by a switch and a coil, a plurality of the capacitors are provided to obtain a plurality of types of oscillation frequencies, and the switch selects one of the capacitors. In order that the oscillation frequency in that state will remain approximately constant with respect to temperature even if the capacitance is selected, the capacitors mentioned above should each have a temperature coefficient that decreases the capacitance as the temperature increases. Characteristic oscillation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14027982U JPS5946011U (en) | 1982-09-16 | 1982-09-16 | oscillation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14027982U JPS5946011U (en) | 1982-09-16 | 1982-09-16 | oscillation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5946011U true JPS5946011U (en) | 1984-03-27 |
Family
ID=30314135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14027982U Pending JPS5946011U (en) | 1982-09-16 | 1982-09-16 | oscillation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5946011U (en) |
-
1982
- 1982-09-16 JP JP14027982U patent/JPS5946011U/en active Pending
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