JPS54118515A - Electronic phase converter - Google Patents
Electronic phase converterInfo
- Publication number
- JPS54118515A JPS54118515A JP2502478A JP2502478A JPS54118515A JP S54118515 A JPS54118515 A JP S54118515A JP 2502478 A JP2502478 A JP 2502478A JP 2502478 A JP2502478 A JP 2502478A JP S54118515 A JPS54118515 A JP S54118515A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- current
- detection circuit
- semiconductor elements
- pulse signal
- 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
Links
Landscapes
- Motor And Converter Starters (AREA)
Abstract
PURPOSE: To protect semiconductor elements by providing a latch circuit for effecting phase conversion by confirming that the current for the other phases is lower than the leakage current level of the semiconductor elements at the time of switching.
CONSTITUTION: A current detection circuit 18 produces a pulse signal "1" when the current in a main circuit 4 becomes lower than the leakage current level of thyristors 2. An operational circuit 14 delivers, when a pluse "1" is supplied from a light detection circuit 13 and a current detection circuit 18, a pulse signal "1" for triggering thyristors 2 in other pairs than those which have been in conduction to a gate pulse generating circuit 15.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2502478A JPS54118515A (en) | 1978-03-07 | 1978-03-07 | Electronic phase converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2502478A JPS54118515A (en) | 1978-03-07 | 1978-03-07 | Electronic phase converter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54118515A true JPS54118515A (en) | 1979-09-14 |
Family
ID=12154336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2502478A Pending JPS54118515A (en) | 1978-03-07 | 1978-03-07 | Electronic phase converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54118515A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4938170A (en) * | 1986-01-21 | 1990-07-03 | Ebara Corporation | Thermal reactor |
-
1978
- 1978-03-07 JP JP2502478A patent/JPS54118515A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4938170A (en) * | 1986-01-21 | 1990-07-03 | Ebara Corporation | Thermal reactor |
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