JPS53149613A - Protective device of over voltage in semiconductor device - Google Patents

Protective device of over voltage in semiconductor device

Info

Publication number
JPS53149613A
JPS53149613A JP6336777A JP6336777A JPS53149613A JP S53149613 A JPS53149613 A JP S53149613A JP 6336777 A JP6336777 A JP 6336777A JP 6336777 A JP6336777 A JP 6336777A JP S53149613 A JPS53149613 A JP S53149613A
Authority
JP
Japan
Prior art keywords
over voltage
semiconductor device
overvoltage
voltage
protective device
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
JP6336777A
Other languages
Japanese (ja)
Inventor
Hisashi Isaka
Takeshi Matsuzaki
Koji Iwata
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.)
Hitachi Engineering Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Engineering Co Ltd
Hitachi Ltd
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 Hitachi Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Engineering Co Ltd
Priority to JP6336777A priority Critical patent/JPS53149613A/en
Publication of JPS53149613A publication Critical patent/JPS53149613A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To suppress big electric power whose voltage rising ratio is big under pressure resisting of element, by making voltage which exceeds the overvoltage detecting value to bypath with Zener diode which is connected in parallel to divided voltage resistance for detectign overvoltage.
COPYRIGHT: (C)1978,JPO&Japio
JP6336777A 1977-06-01 1977-06-01 Protective device of over voltage in semiconductor device Pending JPS53149613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6336777A JPS53149613A (en) 1977-06-01 1977-06-01 Protective device of over voltage in semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6336777A JPS53149613A (en) 1977-06-01 1977-06-01 Protective device of over voltage in semiconductor device

Publications (1)

Publication Number Publication Date
JPS53149613A true JPS53149613A (en) 1978-12-27

Family

ID=13227225

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6336777A Pending JPS53149613A (en) 1977-06-01 1977-06-01 Protective device of over voltage in semiconductor device

Country Status (1)

Country Link
JP (1) JPS53149613A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015149860A (en) * 2014-02-07 2015-08-20 株式会社東芝 overvoltage protection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015149860A (en) * 2014-02-07 2015-08-20 株式会社東芝 overvoltage protection device

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