The capacitance of reversed bised junction J2 in a thyristor is CJ2 = 20 pF and can be assumed to be independant of the off state voltage. The limiting value of the charging current to turn on the thyristor is 16 mA. What is the critical value of dv/dt?
Correct answer: B. 800 V/µs
- A. 600 V/µs
- B. 800 V/µs
- C. 1200 V/µs
- D. 1000 V/µs
Explanation
The charging current is I = C(dv/dt), so dv/dt = 16 mA / 20 pF = 8 × 10^8 V/s = 800 V/µs. Therefore, option B is correct.
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