JPS5866364U - AC input detection circuit - Google Patents
AC input detection circuitInfo
- Publication number
- JPS5866364U JPS5866364U JP16326981U JP16326981U JPS5866364U JP S5866364 U JPS5866364 U JP S5866364U JP 16326981 U JP16326981 U JP 16326981U JP 16326981 U JP16326981 U JP 16326981U JP S5866364 U JPS5866364 U JP S5866364U
- Authority
- JP
- Japan
- Prior art keywords
- detection circuit
- input detection
- current
- photocoupler
- limiting resistor
- 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
- Measurement Of Current Or Voltage (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図は従来の交流入力検出用回路図、第２図は従来回
路における特性を示すグラフ、第３図はこの考案に係る
交流入力検出用回路図、第４図はこの考案における回路
の特性を示すグラフである。 −１・・・・・・被検
出用交流源、２・・・・・・スイッチング回路、３・・
・・・・フォトカップラ、Ｒ１・・・・・・電流制限用
抵抗器、Ｄｘ・・・・・・ダイオード。Figure 1 is a conventional AC input detection circuit diagram, Figure 2 is a graph showing the characteristics of the conventional circuit, Figure 3 is an AC input detection circuit diagram according to this invention, and Figure 4 is the characteristics of the circuit in this invention. This is a graph showing. -1...AC source for detection, 2...Switching circuit, 3...
...Photocoupler, R1... Current limiting resistor, Dx... Diode.
Claims (1)
抵抗器及びフォトカップラを各して検出信号発生部に入
力を供給する回路構成において上記電流制限用抵抗器に
対して、上記フォトカップラが動作しない半サイクルご
との電流をしゃ断させるためのダイオードを備えたこと
を特徴とする交流入力検出回路。In a circuit configuration in which a switching means, a current-limiting resistor, and a photocoupler are connected to the AC power source to be detected and supply input to the detection signal generation section, the photocoupler does not operate with respect to the current-limiting resistor. An AC input detection circuit characterized by being equipped with a diode for cutting off current every half cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16326981U JPS5866364U (en) | 1981-10-30 | 1981-10-30 | AC input detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16326981U JPS5866364U (en) | 1981-10-30 | 1981-10-30 | AC input detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5866364U true JPS5866364U (en) | 1983-05-06 |
Family
ID=29955568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16326981U Pending JPS5866364U (en) | 1981-10-30 | 1981-10-30 | AC input detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5866364U (en) |
-
1981
- 1981-10-30 JP JP16326981U patent/JPS5866364U/en active Pending
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