JPS607077U - Phase rotation detection circuit - Google Patents
Phase rotation detection circuitInfo
- Publication number
- JPS607077U JPS607077U JP9767583U JP9767583U JPS607077U JP S607077 U JPS607077 U JP S607077U JP 9767583 U JP9767583 U JP 9767583U JP 9767583 U JP9767583 U JP 9767583U JP S607077 U JPS607077 U JP S607077U
- Authority
- JP
- Japan
- Prior art keywords
- phase rotation
- detection circuit
- phase
- rotation detection
- output
- 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
- Illuminated Signs And Luminous Advertising (AREA)
- Displays For Variable Information Using Movable Means (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (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図は本考案に係る相回転検出回路の一実施例を示す
回路図、第２図は入力３相交流の波形図、第３図及び第
４図はタイミングチャートである。
Ａ・・・・・・３相信号検出回路、Ｂ・・・・・・判定
回路、Ｃ・・・・・・表示回路、４Ａ、 ４Ｂ・・・・
・・フォトカプラ、１３・・・・・・Ｄフリップフロッ
プ、２１Ａ、２１Ｂ・・・・・・トランジスタ、２５Ａ
、２５Ｂ・・・・・・発光ダイオード。FIG. 1 is a circuit diagram showing an embodiment of a phase rotation detection circuit according to the present invention, FIG. 2 is a waveform diagram of input three-phase AC, and FIGS. 3 and 4 are timing charts. A: Three-phase signal detection circuit, B: Judgment circuit, C: Display circuit, 4A, 4B...
...Photocoupler, 13...D flip-flop, 21A, 21B...Transistor, 25A
, 25B... Light emitting diode.
Claims (1)
状の３相信号を得る２組のフォトカプラと、上記フォト
カプラの一方の出力である３相信号をデータ入力、他方
の出力である３相信号をクロック入力とするＤフリップ
フロップと、上記Ｄフリップフロップの出力により制御
されて相回転の正誤を表示する表示回路とを備えてなる
相回転検出回路。Two sets of photocouplers are connected to the three-phase AC power supply whose phase rotation is to be detected to obtain a pulse-like three-phase signal, and the three-phase signal which is the output of one of the above photocouplers is input as data, and the other is output. A phase rotation detection circuit comprising: a D flip-flop which receives a three-phase signal as a clock input; and a display circuit that is controlled by the output of the D flip-flop and displays whether the phase rotation is correct or incorrect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9767583U JPS607077U (en) | 1983-06-24 | 1983-06-24 | Phase rotation detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9767583U JPS607077U (en) | 1983-06-24 | 1983-06-24 | Phase rotation detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS607077U true JPS607077U (en) | 1985-01-18 |
Family
ID=30232231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9767583U Pending JPS607077U (en) | 1983-06-24 | 1983-06-24 | Phase rotation detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS607077U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61174839U (en) * | 1985-04-15 | 1986-10-31 | ||
| JPS63179263A (en) * | 1987-01-19 | 1988-07-23 | Omron Tateisi Electronics Co | Phase reversal detecting circuit |
-
1983
- 1983-06-24 JP JP9767583U patent/JPS607077U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61174839U (en) * | 1985-04-15 | 1986-10-31 | ||
| JPS63179263A (en) * | 1987-01-19 | 1988-07-23 | Omron Tateisi Electronics Co | Phase reversal detecting circuit |
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