JPH0186725U - - Google Patents
Info
- Publication number
- JPH0186725U JPH0186725U JP18270587U JP18270587U JPH0186725U JP H0186725 U JPH0186725 U JP H0186725U JP 18270587 U JP18270587 U JP 18270587U JP 18270587 U JP18270587 U JP 18270587U JP H0186725 U JPH0186725 U JP H0186725U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- input circuit
- digital signal
- signal input
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Electronic Switches (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は実施例の動作説明のための波形図、第３図、
第４図及び第５図は従来の回路図である。
２……信号源スイツチ、５……フオトカプラ、
６……交流電源、７……整流回路、１０……コン
デンサ、１１……抵抗。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a waveform diagram for explaining the operation of the embodiment, FIG.
4 and 5 are conventional circuit diagrams. 2...Signal source switch, 5...Photocoupler,
6... AC power supply, 7... Rectifier circuit, 10... Capacitor, 11... Resistor.
Claims (1)
る電圧を整流平滑して該スイツチのオン・オフに
一致するオン・オフ信号を取り込むデイジタル信
号入力回路において、前記スイツチからの電圧を
コンデンサと抵抗の並列回路で限流する構成にし
たことを特徴とするデイジタル信号入力回路。 In a digital signal input circuit that rectifies and smoothes a voltage applied from an AC power supply via a signal source switch and captures an on/off signal that corresponds to the on/off state of the switch, the voltage from the switch is connected to a parallel circuit of a capacitor and a resistor. A digital signal input circuit characterized by having a configuration in which current is limited by .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18270587U JPH0186725U (en) | 1987-11-30 | 1987-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18270587U JPH0186725U (en) | 1987-11-30 | 1987-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0186725U true JPH0186725U (en) | 1989-06-08 |
Family
ID=31474149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18270587U Pending JPH0186725U (en) | 1987-11-30 | 1987-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0186725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008136316A (en) * | 2006-11-29 | 2008-06-12 | Daikin Ind Ltd | Charging device and method for power supply unit |
-
1987
- 1987-11-30 JP JP18270587U patent/JPH0186725U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008136316A (en) * | 2006-11-29 | 2008-06-12 | Daikin Ind Ltd | Charging device and method for power supply unit |
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