In the chopper circuit shown, the main thyristor (TM) is

In the chopper circuit shown, the main thyristor (T_M) is operated at a duty ratio of 0.8 which is
much larger the commutation interval. If the maximum allowable reapplied dv on T_M
dt

is 50 V/μs, what should be the theoretical minimum value of C₁? Assume current ripple through L₀ to be negligible.

I₀ =	100	= 12.5 amp
	0.8

Duty ratio of T_M = 0.8
∴ Current through M, I_M = 12.5 × 0.8 = 10A

Now I_M = C	dV_M
	dt

∴ 10 = C ×	50
	10^-6

or C =	50	× 10^-6 = 0.2 μF
	10

much larger the commutation interval. If the maximum allowable reapplied	dv	on T_M
	dt