JPS5577368A - Thyristor driving circuit - Google Patents

Thyristor driving circuit

Info

Publication number
JPS5577368A
JPS5577368A JP14939878A JP14939878A JPS5577368A JP S5577368 A JPS5577368 A JP S5577368A JP 14939878 A JP14939878 A JP 14939878A JP 14939878 A JP14939878 A JP 14939878A JP S5577368 A JPS5577368 A JP S5577368A
Authority
JP
Japan
Prior art keywords
thyristor
transistor
surge
constant current
current circuit
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
JP14939878A
Other languages
Japanese (ja)
Other versions
JPS6155810B2 (en
Inventor
Yukio Miyazaki
Toru Kameda
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 JP14939878A priority Critical patent/JPS5577368A/en
Publication of JPS5577368A publication Critical patent/JPS5577368A/en
Publication of JPS6155810B2 publication Critical patent/JPS6155810B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To improve the surge dielectric strength between the anode and cathode of a thyristor and prevent the deterioration of the thyristor, by reducing the effective gate resistance of the thyristor and causing a constant current circuit to absorb a leakage current which flows out to the gate terminal of the thyristor.
CONSTITUTION: A transistor 12 is connected to a thyristor 18 and closed to maintain the surge dielectric strength between the anode and cathode of the thyristor. An effective gate resistance is approximate to the saturation resistance of the transistor 12. A constant current circuit 19 is coupled in parallel with the collector and emitter of the transistor 12 so that a leakage current flowing out to the gate terminal of the thyristor 18 is absorbed by the constant current circuit 19. As a result, the thyristor 18 does not break over but is turned on by the gate current even if a surge voltage is applied to the thyristor in its transient state. Therefore, the thyristor 18 is prevented from deteriorating.
COPYRIGHT: (C)1980,JPO&Japio
JP14939878A 1978-11-30 1978-11-30 Thyristor driving circuit Granted JPS5577368A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14939878A JPS5577368A (en) 1978-11-30 1978-11-30 Thyristor driving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14939878A JPS5577368A (en) 1978-11-30 1978-11-30 Thyristor driving circuit

Publications (2)

Publication Number Publication Date
JPS5577368A true JPS5577368A (en) 1980-06-11
JPS6155810B2 JPS6155810B2 (en) 1986-11-29

Family

ID=15474252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14939878A Granted JPS5577368A (en) 1978-11-30 1978-11-30 Thyristor driving circuit

Country Status (1)

Country Link
JP (1) JPS5577368A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100527528B1 (en) * 2002-07-26 2005-11-09 미쓰비시덴키 가부시키가이샤 Motor driving device for supplying driving current to a three-phase motor through output transistors
JP2014042394A (en) * 2012-08-22 2014-03-06 Denso Corp Device for driving switching element

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8256147B2 (en) 2004-11-22 2012-09-04 Frampton E. Eliis Devices with internal flexibility sipes, including siped chambers for footwear
US8125796B2 (en) 2007-11-21 2012-02-28 Frampton E. Ellis Devices with faraday cages and internal flexibility sipes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100527528B1 (en) * 2002-07-26 2005-11-09 미쓰비시덴키 가부시키가이샤 Motor driving device for supplying driving current to a three-phase motor through output transistors
JP2014042394A (en) * 2012-08-22 2014-03-06 Denso Corp Device for driving switching element

Also Published As

Publication number Publication date
JPS6155810B2 (en) 1986-11-29

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