JPS5537861A - Controlled rectifier - Google Patents
Controlled rectifierInfo
- 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
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
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)
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)
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 |
-
1978
- 1978-09-08 JP JP11031878A patent/JPS5936510B2/en not_active Expired
Cited By (2)
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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