JPS5537861A - Controlled rectifier - Google Patents

Controlled rectifier

Info

Publication number
JPS5537861A
JPS5537861A JP11031878A JP11031878A JPS5537861A JP S5537861 A JPS5537861 A JP S5537861A JP 11031878 A JP11031878 A JP 11031878A JP 11031878 A JP11031878 A JP 11031878A JP S5537861 A JPS5537861 A JP S5537861A
Authority
JP
Japan
Prior art keywords
rectifier
gate
circuit
defective
time
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
JP11031878A
Other languages
Japanese (ja)
Other versions
JPS5936510B2 (en
Inventor
Hiroshi Ikeda
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 JP11031878A priority Critical patent/JPS5936510B2/en
Publication of JPS5537861A publication Critical patent/JPS5537861A/en
Publication of JPS5936510B2 publication Critical patent/JPS5936510B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the concentration of current to a defective controlled rectifier and immediately perform quick protection, by gate-blocking the defective rectifier, then operating a normal controlled rectifier in a power conversion range and gate- shifting the normal rectifier after a prescribed time.
CONSTITUTION: The controlled rectifiers are coupled in parallel with each other to energize a load 6. When a rectifier 4-1 becomes defective, a turn-on pulse from a phase control circuit 10-1 is blocked by a circuit 14-1 to gate-block the rectifier 4-1. At that time, a signal is supplied from a turn-on angle determination circuit 8-2 to another phase control circuit 10-2 by the output of a flip-flop 13-2 to operate another rectifier 4-2 in a power conversion range. When a time set by a delay circuit 12-2 has elapsed, a signal is supplied from a gate shifting phase determination circuit 9-2 to the phase circit 10-2 to gate-shift the rectifier 4-2. This results in preventing the continuation of current due to the time constant of the load or the like and performing sure protection.
COPYRIGHT: (C)1980,JPO&Japio
JP11031878A 1978-09-08 1978-09-08 Protection method of controlled rectifier Expired JPS5936510B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11031878A JPS5936510B2 (en) 1978-09-08 1978-09-08 Protection method of controlled rectifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11031878A JPS5936510B2 (en) 1978-09-08 1978-09-08 Protection method of controlled rectifier

Publications (2)

Publication Number Publication Date
JPS5537861A true JPS5537861A (en) 1980-03-17
JPS5936510B2 JPS5936510B2 (en) 1984-09-04

Family

ID=14532671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11031878A Expired JPS5936510B2 (en) 1978-09-08 1978-09-08 Protection method of controlled rectifier

Country Status (1)

Country Link
JP (1) JPS5936510B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5731374A (en) * 1980-07-31 1982-02-19 Toshiba Corp Protecting system for controlled rectifier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0275103A (en) * 1988-09-09 1990-03-14 Hinokibun Kk Light receiving method using light tunnel and device thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5731374A (en) * 1980-07-31 1982-02-19 Toshiba Corp Protecting system for controlled rectifier
JPS6320109B2 (en) * 1980-07-31 1988-04-26 Tokyo Shibaura Electric Co

Also Published As

Publication number Publication date
JPS5936510B2 (en) 1984-09-04

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