JPS6192879U - - Google Patents
Info
- Publication number
- JPS6192879U JPS6192879U JP17674384U JP17674384U JPS6192879U JP S6192879 U JPS6192879 U JP S6192879U JP 17674384 U JP17674384 U JP 17674384U JP 17674384 U JP17674384 U JP 17674384U JP S6192879 U JPS6192879 U JP S6192879U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- pulse train
- circuit
- main circuit
- voltage waveform
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は第１図における各部波形を示す図、第３図は
従来の不足電圧検出装置の一例を示す回路図であ
る。
１……主回路交流電源、２……制御装置、３…
…絶縁トランス、４……ダイオードブリツジ、６
……コンデンサ、８，１３……ボリユーム、９…
…コンパレータ、１２……フオトカプラ、１５…
…バツフア、１７……マイコン。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a diagram showing waveforms of various parts in FIG. 1, and FIG. 3 is a circuit diagram showing an example of a conventional undervoltage detection device. 1... Main circuit AC power supply, 2... Control device, 3...
...Isolation transformer, 4...Diode bridge, 6
...Capacitor, 8,13...Volume, 9...
...Comparator, 12...Photocoupler, 15...
...Batsuhua, 17...Microcomputer.
Claims (1)
プラと、検出した交流電圧波形を所定の直流電圧
と比較しその大小に応じてオンオフする矩形波の
パルス列を出力する比較回路と、上記パルス列の
オンオフ比によつて上記交流主回路の電圧低下を
判別する演算回路を備えたことを特徴とする不足
電圧検出装置。 A photocoupler that detects the voltage waveform of the AC main circuit voltage, a comparison circuit that compares the detected AC voltage waveform with a predetermined DC voltage and outputs a rectangular wave pulse train that turns on and off depending on the magnitude, and an on-off ratio of the pulse train. Therefore, an undervoltage detection device characterized by comprising an arithmetic circuit for determining a voltage drop in the AC main circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17674384U JPS6192879U (en) | 1984-11-22 | 1984-11-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17674384U JPS6192879U (en) | 1984-11-22 | 1984-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6192879U true JPS6192879U (en) | 1986-06-16 |
Family
ID=30734336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17674384U Pending JPS6192879U (en) | 1984-11-22 | 1984-11-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6192879U (en) |
-
1984
- 1984-11-22 JP JP17674384U patent/JPS6192879U/ja active Pending