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598P/599P Application Manual
Each semiconductor manufacturer provides a thyristor Gate Trigger Characteristic to allow the gate
drive to be designed.
The Voltage-Current characteristic of the gate trigger output should be plotted onto the thyristor Gate
Trigger Characteristic, and a check made to ensure that the curve passes through the Area of Certain
Triggering, with sufficient margin. It should be noted that the drive required is dependent on the
maximum rate of rise of current that will occur in the thyristor in the application, and on the minimum
temperature of operation.
Always consult the thyristor manufacturer if there is any doubt
whether the gate trigger output is compatible.
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