JPH0459481U - - Google Patents
Info
- Publication number
- JPH0459481U JPH0459481U JP10277090U JP10277090U JPH0459481U JP H0459481 U JPH0459481 U JP H0459481U JP 10277090 U JP10277090 U JP 10277090U JP 10277090 U JP10277090 U JP 10277090U JP H0459481 U JPH0459481 U JP H0459481U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- detection circuit
- disconnection
- power source
- current
- 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 7
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
第１図乃至第３図は、本考案の第１乃至第３実
施例を示した回路図、第４図は本考案の従来例を
示した回路図である。
１……電源、２……ヒータ線（負荷）、３……
供給時間設定回路、４……リレー（第１のスイツ
チ）、６……断線検出回路、７……リレー（第２
のスイツチ）、８……電流制限抵抗、９……電流
検出回路。
1 to 3 are circuit diagrams showing first to third embodiments of the present invention, and FIG. 4 is a circuit diagram showing a conventional example of the present invention. 1...Power supply, 2...Heater wire (load), 3...
Supply time setting circuit, 4... Relay (first switch), 6... Disconnection detection circuit, 7... Relay (second
switch), 8... current limiting resistor, 9... current detection circuit.
Claims (1)
断線検出を行う装置であつて、電源と負荷との間
に第１のスイツチを接続し、この第１のスイツチ
と並列に第１のスイツチと排他的に動作する第２
のスイツチを接続し、第２のスイツチのオンによ
り電源から印加される電流を制限する電流制限抵
抗と電流検出回路を第２のスイツチを含むループ
に接続し、電流検出回路の検出出力に基づいて断
線状態であることを判定する断線検出回路を設け
たことを特徴とする断線検出回路。 A device for detecting disconnection between a power source and a load supplied with power from the power source, in which a first switch is connected between the power source and the load, and a first switch is connected in parallel to the first switch. The second operating exclusively
A current limiting resistor that limits the current applied from the power supply when the second switch is turned on, and a current detection circuit are connected to the loop including the second switch, and based on the detection output of the current detection circuit. A disconnection detection circuit comprising a disconnection detection circuit for determining a disconnection state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10277090U JPH0459481U (en) | 1990-09-28 | 1990-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10277090U JPH0459481U (en) | 1990-09-28 | 1990-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0459481U true JPH0459481U (en) | 1992-05-21 |
Family
ID=31847299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10277090U Pending JPH0459481U (en) | 1990-09-28 | 1990-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0459481U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07235412A (en) * | 1994-02-24 | 1995-09-05 | Mitsubishi Electric Corp | Superconducting magnet device |
| JPH0894702A (en) * | 1994-09-28 | 1996-04-12 | Nec Tohoku Ltd | Withstand voltage testing device for electromagnetic relay |
| JP2007072908A (en) * | 2005-09-08 | 2007-03-22 | Jtekt Corp | Plc muting device |
| JP2015077245A (en) * | 2013-10-16 | 2015-04-23 | ホシザキ電機株式会社 | Flyer |
-
1990
- 1990-09-28 JP JP10277090U patent/JPH0459481U/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07235412A (en) * | 1994-02-24 | 1995-09-05 | Mitsubishi Electric Corp | Superconducting magnet device |
| JPH0894702A (en) * | 1994-09-28 | 1996-04-12 | Nec Tohoku Ltd | Withstand voltage testing device for electromagnetic relay |
| JP2007072908A (en) * | 2005-09-08 | 2007-03-22 | Jtekt Corp | Plc muting device |
| JP2015077245A (en) * | 2013-10-16 | 2015-04-23 | ホシザキ電機株式会社 | Flyer |