JPS5325339A - Transistor protection circuit - Google Patents

Transistor protection circuit

Info

Publication number
JPS5325339A
JPS5325339A JP9972376A JP9972376A JPS5325339A JP S5325339 A JPS5325339 A JP S5325339A JP 9972376 A JP9972376 A JP 9972376A JP 9972376 A JP9972376 A JP 9972376A JP S5325339 A JPS5325339 A JP S5325339A
Authority
JP
Japan
Prior art keywords
transistor
protection circuit
transistor protection
occurrence
ensure
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.)
Granted
Application number
JP9972376A
Other languages
Japanese (ja)
Other versions
JPS6019166B2 (en
Inventor
Ryozo Konya
Kunio Seki
Ritsuji Takeshita
Original Assignee
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 Ltd filed Critical Hitachi Ltd
Priority to JP51099723A priority Critical patent/JPS6019166B2/ja
Publication of JPS5325339A publication Critical patent/JPS5325339A/en
Publication of JPS6019166B2 publication Critical patent/JPS6019166B2/ja
Expired legal-status Critical Current

Links

Abstract

PURPOSE: An adverse bias is given to the transistor base by detecting the occurrence of an abnormal voltage to ensure an effective protection for the transistor. In this way, the voltage resistance performance can be actually increased for a transistor.
COPYRIGHT: (C)1978,JPO&Japio
JP51099723A 1976-08-23 1976-08-23 Expired JPS6019166B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51099723A JPS6019166B2 (en) 1976-08-23 1976-08-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51099723A JPS6019166B2 (en) 1976-08-23 1976-08-23

Publications (2)

Publication Number Publication Date
JPS5325339A true JPS5325339A (en) 1978-03-09
JPS6019166B2 JPS6019166B2 (en) 1985-05-15

Family

ID=14254984

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51099723A Expired JPS6019166B2 (en) 1976-08-23 1976-08-23

Country Status (1)

Country Link
JP (1) JPS6019166B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58120307U (en) * 1982-02-09 1983-08-16
JPS6042267A (en) * 1983-08-16 1985-03-06 Onoda Cement Co Ltd Manufacture of noncombustible gypsum board
US4645548A (en) * 1984-02-14 1987-02-24 Onoda Cement Co Ltd Process for producing non-combustible gypsum board and non-combustible laminated gypsum board
JPS63288933A (en) * 1987-05-22 1988-11-25 Onoda Cement Co Ltd Production of cellulose fiber reinforced gypsum board
JPH0473342A (en) * 1990-07-13 1992-03-09 Sk Kaken Co Ltd Method for applying fireproof coating to steel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4953358A (en) * 1972-09-26 1974-05-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4953358A (en) * 1972-09-26 1974-05-23

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58120307U (en) * 1982-02-09 1983-08-16
JPS6042267A (en) * 1983-08-16 1985-03-06 Onoda Cement Co Ltd Manufacture of noncombustible gypsum board
JPH0438705B2 (en) * 1983-08-16 1992-06-25
US4645548A (en) * 1984-02-14 1987-02-24 Onoda Cement Co Ltd Process for producing non-combustible gypsum board and non-combustible laminated gypsum board
JPS63288933A (en) * 1987-05-22 1988-11-25 Onoda Cement Co Ltd Production of cellulose fiber reinforced gypsum board
JPH0473342A (en) * 1990-07-13 1992-03-09 Sk Kaken Co Ltd Method for applying fireproof coating to steel

Also Published As

Publication number Publication date
JPS6019166B2 (en) 1985-05-15

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