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JPS5650414A - Switching circuit - Google Patents

Switching circuit

Info

Publication number
JPS5650414A
JPS5650414A JP12537879A JP12537879A JPS5650414A JP S5650414 A JPS5650414 A JP S5650414A JP 12537879 A JP12537879 A JP 12537879A JP 12537879 A JP12537879 A JP 12537879A JP S5650414 A JPS5650414 A JP S5650414A
Authority
JP
Japan
Prior art keywords
voltage
thyristor
turning
switching circuit
primary
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
JP12537879A
Other languages
Japanese (ja)
Other versions
JPS6227623B2 (en
Inventor
Takuji Matsumura
Kiichi Tokunaga
Hiroshi Fukui
Hisao Amano
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
Proterial Ltd
Original Assignee
Hitachi Ltd
Hitachi Metals 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, Hitachi Metals Ltd filed Critical Hitachi Ltd
Priority to JP12537879A priority Critical patent/JPS5650414A/en
Publication of JPS5650414A publication Critical patent/JPS5650414A/en
Publication of JPS6227623B2 publication Critical patent/JPS6227623B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Electrical Variables (AREA)
  • Dc-Dc Converters (AREA)
  • Inverter Devices (AREA)
  • Rectifiers (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

PURPOSE: To protect the primary-side gate turn-off thyristor and so on from destruction, by detecting the primary-side voltage of a high-voltage transformer concerning the turning-on and-off type switching circuit of the electric range and so on whih is suitable to drive the load with a high voltage.
CONSTITUTION: Since a current considerably larger than that for the normal time is flowed for the turning-on and-off time in the turning-on and-off type switching circuit, the secondary-side voltage of the high-voltage transformer is detected to control the oscillation time so that the passage current of gate turn-off thyristor GTO9 cannot exceed the limit determined by the smaller one of the excitation characteristic of the primary winding of high-voltage transformer 3 and the cut-off characteristic of thyristor GTO9. As a result, thyrstor GTO and so on can be protected from destruction for occurrence of the moding phenomenon and so on of magnetrons.
COPYRIGHT: (C)1981,JPO&Japio
JP12537879A 1979-10-01 1979-10-01 Switching circuit Granted JPS5650414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12537879A JPS5650414A (en) 1979-10-01 1979-10-01 Switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12537879A JPS5650414A (en) 1979-10-01 1979-10-01 Switching circuit

Publications (2)

Publication Number Publication Date
JPS5650414A true JPS5650414A (en) 1981-05-07
JPS6227623B2 JPS6227623B2 (en) 1987-06-16

Family

ID=14908643

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12537879A Granted JPS5650414A (en) 1979-10-01 1979-10-01 Switching circuit

Country Status (1)

Country Link
JP (1) JPS5650414A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283604A (en) * 1988-09-20 1990-03-23 Toshiba Corp Static reactive power compensator
JP2009181821A (en) * 2008-01-31 2009-08-13 Orc Mfg Co Ltd Lighting method of microwave excitation discharge lamp
CN108051723A (en) * 2017-12-26 2018-05-18 华北电力大学 A kind of high current turn-off characteristic test method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0283604A (en) * 1988-09-20 1990-03-23 Toshiba Corp Static reactive power compensator
JP2009181821A (en) * 2008-01-31 2009-08-13 Orc Mfg Co Ltd Lighting method of microwave excitation discharge lamp
CN108051723A (en) * 2017-12-26 2018-05-18 华北电力大学 A kind of high current turn-off characteristic test method
CN108051723B (en) * 2017-12-26 2019-08-02 华北电力大学 A kind of high current turn-off characteristic test method

Also Published As

Publication number Publication date
JPS6227623B2 (en) 1987-06-16

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