How to determine determine the peripheral LC parameters of IRF840?

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KAKU

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SHENZHEN, GUANGDONG
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Editor
Hi, newbie here!
Recently, I tried to form a snubber circuit with diodes, inductors, resistors and irf840 in parallel, to protect IRF840.
But how can I determine the parameters of inductance and resistance?
Or can I determine the parameters of the snubber circuit from the magnitude and width of the surge current?
Could anyone help ? Thanks in advanced!
 
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