JPS6416254A - Gate driving device for self-arc-extinguishing switching element - Google Patents

Gate driving device for self-arc-extinguishing switching element

Info

Publication number
JPS6416254A
JPS6416254A JP16979287A JP16979287A JPS6416254A JP S6416254 A JPS6416254 A JP S6416254A JP 16979287 A JP16979287 A JP 16979287A JP 16979287 A JP16979287 A JP 16979287A JP S6416254 A JPS6416254 A JP S6416254A
Authority
JP
Japan
Prior art keywords
current
driving device
control unit
short
gate driving
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
JP16979287A
Other languages
Japanese (ja)
Other versions
JP2633569B2 (en
Inventor
Kingo Abe
Satoru Horie
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 Ltd
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 JP62169792A priority Critical patent/JP2633569B2/en
Publication of JPS6416254A publication Critical patent/JPS6416254A/en
Application granted granted Critical
Publication of JP2633569B2 publication Critical patent/JP2633569B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Power Conversion In General (AREA)
  • Thyristor Switches And Gates (AREA)

Abstract

PURPOSE:To restrain the short-circuit current of a gate driving device, by outputting a signal to a control unit to restrain an AC output when the output current of a DC power source has exceeded a predetermined value. CONSTITUTION:The gate driving device 2' of a GTO (self arc-extinguishing switching) element 1 is provided with an opening and closing control unit 23' and a current detecting unit 27, detecting the output current of a DC power source 3. The current detecting unit 27 decides whether the output current of the DC power source 3 has exceeded a predetermined value or not and outputs a signal to the opening and closing control unit 23' when it has exceeded the predetermined value. When the GTO 1 is broken down and short-circuit is generated between a gate and a cathode, for example, a large short-circuit current is conducted through the secondary side of a transformer 21. The short- circuit current is detected by the current detecting unit 27 and a commanding signal for preventing overcurrent is outputted while the commanding signal is inputted into the opening and closing control unit 23' and a modulating circuit reduces the pulse width of an output pulse extremely.
JP62169792A 1987-07-09 1987-07-09 Gate drive device for self-extinguishing switching element Expired - Fee Related JP2633569B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62169792A JP2633569B2 (en) 1987-07-09 1987-07-09 Gate drive device for self-extinguishing switching element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62169792A JP2633569B2 (en) 1987-07-09 1987-07-09 Gate drive device for self-extinguishing switching element

Publications (2)

Publication Number Publication Date
JPS6416254A true JPS6416254A (en) 1989-01-19
JP2633569B2 JP2633569B2 (en) 1997-07-23

Family

ID=15892968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62169792A Expired - Fee Related JP2633569B2 (en) 1987-07-09 1987-07-09 Gate drive device for self-extinguishing switching element

Country Status (1)

Country Link
JP (1) JP2633569B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5983569A (en) * 1982-10-30 1984-05-15 Toshiba Corp Trouble detecting circuit for gate turn-off thyristor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5983569A (en) * 1982-10-30 1984-05-15 Toshiba Corp Trouble detecting circuit for gate turn-off thyristor

Also Published As

Publication number Publication date
JP2633569B2 (en) 1997-07-23

Similar Documents

Publication Publication Date Title
ES8702751A1 (en) Current supervision for a switching regulator.
KR860009531A (en) Short circuit protection method of uninterruptible power supply
JPS54144922A (en) Control system for switching power
TW243486B (en) Deterioration discrimination circuit for thyristor with control pole and the ignition device of motor using such circuit
JPS57138871A (en) Current limiting circuit for voltage inverter
AU4757993A (en) Power circuit breaker
JPS55157924A (en) Overcurrent relay
JPS5576578A (en) Overdischarge-preventing circuit for battery
JPS5631369A (en) Direct current to direct current converting type power source device
JPS5467655A (en) Distribution line shortage protector
JPS56157266A (en) Power source
JPS5710820A (en) Constant voltage power supply device
JPS6485576A (en) Power converting device
JPS6412896A (en) Current control circuit
JPS5445741A (en) Control system of inverter
JPS569818A (en) Protecting circuit of switching regulator
JPS6469267A (en) Voltage detector for inverter
JPS5656173A (en) Stabilized switching power source circuit
JPS5627566A (en) Protector of television receiver
SU1094108A1 (en) Storage battery charging and discharging device
JPS5778225A (en) Gate circuit for gate turn-off thyristor
JPS57173378A (en) Operating method for inverter
JPS5746681A (en) Inverter circuit
JPS6412824A (en) Output variation system for inverse voltage detection of dispersed power source
JPS648837A (en) Ac no-break power unit

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees