| 摘要 |
PROBLEM TO BE SOLVED: To provide a gate driver for a thyristor having a simple structure and low power loss. SOLUTION: A prescribed signal pattern is generated to produce a current for driving a GCT thyristor. The current is produced by the use of a down converter. Also, a current limiter, having FETs, is used for protecting the down converter against damage caused by a negative voltage appearing at the gate of the GCT thyristor, when the GCT thyristor receives a reverse direction load current.
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