JPS6423723A - Erroneous wiring preventer - Google Patents

Erroneous wiring preventer

Info

Publication number
JPS6423723A
JPS6423723A JP17940287A JP17940287A JPS6423723A JP S6423723 A JPS6423723 A JP S6423723A JP 17940287 A JP17940287 A JP 17940287A JP 17940287 A JP17940287 A JP 17940287A JP S6423723 A JPS6423723 A JP S6423723A
Authority
JP
Japan
Prior art keywords
semiconductor switch
erroneous wiring
preventer
transistor
turned
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
Application number
JP17940287A
Other languages
Japanese (ja)
Inventor
Kiyotoshi Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP17940287A priority Critical patent/JPS6423723A/en
Publication of JPS6423723A publication Critical patent/JPS6423723A/en
Pending legal-status Critical Current

Links

Landscapes

  • Protection Of Static Devices (AREA)
  • Ventilation (AREA)

Abstract

PURPOSE:To protect a semiconductor switch from breakdown, by detecting erroneous wiring and disabling the semiconductor switch. CONSTITUTION:A fan drive circuit 4 comprises a diode bridge DB, resistors R1-R3, a capacitor C1 and semiconductor switch 61, i.e. a thyristor SCR. Resistance of a series circuit of a transistor Q4 and a resistor R19 connected in parallel with the semiconductor switch 61 varies considerably when the transistor Q4 is turned ON, OFF. An erroneous wiring detecting circuit 5 outputs an erroneous wiring signal when the semiconductor switch 61 is connected erroneously. The semiconductor switch 61 is controlled not to be turned ON by the erroneous wiring signal.
JP17940287A 1987-07-18 1987-07-18 Erroneous wiring preventer Pending JPS6423723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17940287A JPS6423723A (en) 1987-07-18 1987-07-18 Erroneous wiring preventer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17940287A JPS6423723A (en) 1987-07-18 1987-07-18 Erroneous wiring preventer

Publications (1)

Publication Number Publication Date
JPS6423723A true JPS6423723A (en) 1989-01-26

Family

ID=16065240

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17940287A Pending JPS6423723A (en) 1987-07-18 1987-07-18 Erroneous wiring preventer

Country Status (1)

Country Link
JP (1) JPS6423723A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104052029A (en) * 2013-03-15 2014-09-17 深圳市海洋王照明工程有限公司 Charger reverse-connection-prevention circuit and electronic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104052029A (en) * 2013-03-15 2014-09-17 深圳市海洋王照明工程有限公司 Charger reverse-connection-prevention circuit and electronic device

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