JPS5553179A - Thyristor chopper - Google Patents

Thyristor chopper

Info

Publication number
JPS5553179A
JPS5553179A JP12457878A JP12457878A JPS5553179A JP S5553179 A JPS5553179 A JP S5553179A JP 12457878 A JP12457878 A JP 12457878A JP 12457878 A JP12457878 A JP 12457878A JP S5553179 A JPS5553179 A JP S5553179A
Authority
JP
Japan
Prior art keywords
chopper
commutation
decreased
failure
potential
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
JP12457878A
Other languages
Japanese (ja)
Inventor
Hiroyuki Nomura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12457878A priority Critical patent/JPS5553179A/en
Publication of JPS5553179A publication Critical patent/JPS5553179A/en
Pending legal-status Critical Current

Links

Landscapes

  • Stand-By Power Supply Arrangements (AREA)
  • Dc-Dc Converters (AREA)

Abstract

PURPOSE: To prevent the failure of a good chopper when a failed chopper is separated by inserting a rectifying element into a commutation-capacitor charging circuit so as to keep the voltage when the commutation in choppers which are connected in parallel is performed.
CONSTITUTION: When a chipper 20 fails and a switch circuit 15 is turned on by a failure-sensing signal, a short-circuit current is flown from a dc power supply 11, thereby the potential at a point A is decreased. On the other hand the potential at a commutation capacitor 21' of a chopper 20' is not decreased because of the presence of a rectifying element 1'. Therefore, the chopper 20' does not become abnormal, and the normal operation can be continued.
COPYRIGHT: (C)1980,JPO&Japio
JP12457878A 1978-10-12 1978-10-12 Thyristor chopper Pending JPS5553179A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12457878A JPS5553179A (en) 1978-10-12 1978-10-12 Thyristor chopper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12457878A JPS5553179A (en) 1978-10-12 1978-10-12 Thyristor chopper

Publications (1)

Publication Number Publication Date
JPS5553179A true JPS5553179A (en) 1980-04-18

Family

ID=14888931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12457878A Pending JPS5553179A (en) 1978-10-12 1978-10-12 Thyristor chopper

Country Status (1)

Country Link
JP (1) JPS5553179A (en)

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