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MEASUREMENT OF THE REDISTRIBUTION OF CURRENT IN GTO THYRISTORS DURING TURN OFF
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| Author(s) |
P. R. Palmer; C. M. Johnson |
| Abstract |
A method is described for measuring the redistribution of current that occurs between cathode islands in multi-cathode GTO Thyristors at turn-off. Current redistribution has implications for device reliability, since the maximum controllable current for a single island may be reached catastrophically. Results are presented for 400A GTO's showing that the extent of the current redistribution depends upon the storage time allowed, and the anode-cathode voltage reached during the current fall time. From this conclusions are made concerning GTO circuit design and rating of the devices. |
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| Filename: | Unnamed file |
| Filesize: | 421.5 KB |
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| Type |
Members Only |
| Date |
Last modified 2021-02-08 by System |
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