JPS5854117U - modulation circuit - Google Patents
modulation circuitInfo
- Publication number
- JPS5854117U JPS5854117U JP14949381U JP14949381U JPS5854117U JP S5854117 U JPS5854117 U JP S5854117U JP 14949381 U JP14949381 U JP 14949381U JP 14949381 U JP14949381 U JP 14949381U JP S5854117 U JPS5854117 U JP S5854117U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- terminal
- modulation circuit
- switches
- ground terminal
- 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
- Processing Of Color Television Signals (AREA)
- Amplitude Modulation (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (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
第１図は振幅変調波の波形図、第２図は従来のスイッチ
ドキャ／くシタ回路による変調回路、第３図は本考案に
よる変調回路の一実施例の回路図、第４図は上記実施例
の動作説明のためのタイムチャート図、第５図は上艷実
施例におけるスイッチ７の変形例を示す図である。
１・・・・・・入力端子、２・・・・・・出力端子、３
−１． ３−２．３−３．１４・・・・・・スイッチド
キャパシタ、４、 ５． ６． ７． １１． １２．
１５・・・・・・スイッチ、８・・・・・・帰還コン
デンサ、９・・・・・・演算増幅器、１３・・・・・・
スイッチ駆動回路。Fig. 1 is a waveform diagram of an amplitude modulated wave, Fig. 2 is a modulation circuit using a conventional switched capacitor circuit, Fig. 3 is a circuit diagram of an embodiment of a modulation circuit according to the present invention, and Fig. 4 is a circuit diagram of an embodiment of the modulation circuit according to the present invention. FIG. 5 is a time chart diagram for explaining the operation of the example, and is a diagram showing a modification of the switch 7 in the upper embodiment. 1...Input terminal, 2...Output terminal, 3
-1. 3-2.3-3.14...Switched capacitor, 4, 5. 6. 7. 11. 12.
15... Switch, 8... Feedback capacitor, 9... Operational amplifier, 13...
Switch drive circuit.
Claims (1)
キャパシタの一端に少なくとも入力端子、アース端子、
取出し端子を切換る第１のスイッチと、他の一方の端子
を少なくともアース端子と取出し端子を切換える第２の
スイッチと、上記スイッチを駆動するスイッチ駆動回路
とで構成された・ことを特徴とする変調回路。an operational amplifier and a single switched capacitor, with at least an input terminal, a ground terminal, and a ground terminal at one end of the capacitor;
The device is characterized in that it is comprised of a first switch that switches the output terminal, a second switch that switches the other terminal between at least the ground terminal and the output terminal, and a switch drive circuit that drives the switch. Modulation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14949381U JPS5854117U (en) | 1981-10-09 | 1981-10-09 | modulation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14949381U JPS5854117U (en) | 1981-10-09 | 1981-10-09 | modulation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5854117U true JPS5854117U (en) | 1983-04-13 |
Family
ID=29942260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14949381U Pending JPS5854117U (en) | 1981-10-09 | 1981-10-09 | modulation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5854117U (en) |
-
1981
- 1981-10-09 JP JP14949381U patent/JPS5854117U/en active Pending
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