The input voltage $V_s=200\text{V}$ with load resistance of $5\;\Omeg…

Question

The input voltage $V_s=200\text{V}$ with load resistance of $5\;\Omega$. The load and stray inductances are negligible and the thyristor is operated at a frequency of $f_s=2\text{kHz}$. The required $\text{dv/dt}$ is $100\text{V}/\mu\text{s}$ and the discharge current is to be limited to $100\text{A}$, determine

a) values of $R_s$ and $C_s$

b) Snubber loss and

c) power rating of snubber resistor. (20)

Related pages

• SCR Protection — topic
• Power Electronics syllabus