JPH0250686U - - Google Patents
Info
- Publication number
- JPH0250686U JPH0250686U JP13029488U JP13029488U JPH0250686U JP H0250686 U JPH0250686 U JP H0250686U JP 13029488 U JP13029488 U JP 13029488U JP 13029488 U JP13029488 U JP 13029488U JP H0250686 U JPH0250686 U JP H0250686U
- Authority
- JP
- Japan
- Prior art keywords
- phase detection
- failure
- circuit
- electric circuit
- timing
- 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 8
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Measuring Phase Differences (AREA)
Description
第１図はこの考案の構成を示す図であり、第２
図はその作用を説明する図である。また第３図は
この考案の実施例のブロツク図を示し、第４図は
その要部の信号波形図を示している。また第５図
は従来の位相検出回路の構成図を示し、第６図は
その回路の欠点を説明するための図である。
１，２…フイルタ、３…故障判定手段、４…位
相検出部、４ａ，４ｂ…位相検出タイミング形成
手段、４ｃ…検出部。
Figure 1 is a diagram showing the configuration of this invention, and Figure 2 shows the configuration of this invention.
The figure is a diagram explaining the effect. Further, FIG. 3 shows a block diagram of an embodiment of this invention, and FIG. 4 shows a signal waveform diagram of the main part thereof. Further, FIG. 5 shows a configuration diagram of a conventional phase detection circuit, and FIG. 6 is a diagram for explaining the drawbacks of the circuit. DESCRIPTION OF SYMBOLS 1, 2...Filter, 3...Failure determination means, 4...Phase detection part, 4a, 4b...Phase detection timing formation means, 4c...Detection part.
Claims (1)
相検出用タイミングを形成して位相差を検出する
位相検出回路において、 前記電圧または電流の振幅変化に基づいて一定
の時間で故障発生有無を判定する故障判定手段と 故障判定出力の立ち上がり時から作動する位相
検出部とを備え、 前記位相検出部は、電圧または電流のうち基準
となる方の位相検出タイミングを形成した後に、
他方の位相検出タイミングの形成を有効にする手
段を具備することを特徴とする位相検出回路。[Claims for Utility Model Registration] In a phase detection circuit that detects a phase difference by forming timing for phase detection of voltage and current of the electric circuit when a failure occurs in the electric circuit, failure determination means for determining whether a failure has occurred in a time of After that,
A phase detection circuit comprising means for validating the formation of the other phase detection timing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13029488U JPH0250686U (en) | 1988-10-04 | 1988-10-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13029488U JPH0250686U (en) | 1988-10-04 | 1988-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0250686U true JPH0250686U (en) | 1990-04-09 |
Family
ID=31385333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13029488U Pending JPH0250686U (en) | 1988-10-04 | 1988-10-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0250686U (en) |
-
1988
- 1988-10-04 JP JP13029488U patent/JPH0250686U/ja active Pending
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