Question
Download Solution PDFIf the latching current of a thyristor is 4 mA and it is connected in series with a purely inductive load of 0.2 H across a DC voltage of 200 V. What should be the minimum width of the pulse to properly turn on the thyristor?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept
The current through an inductor is given by:
\(I_L={V_L\over L}\times t\)
\(t={I_L\over V_L}\times L\)
where, t = time period
IL = Latching current
VL = Voltage
L = Inductor
Calculation
Given, IL = 4 mA
VL = 200 V
L = 0.2 H
\(t={4\times 10^{-3}\over 200}\times 0.2\)
t = 4 μs
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