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Mode 1
In this mode transistor Q gets turned on by the positive output of the PWM. After that current flows through inductor L transistor Q then back to supply in this condition inductance stores the energy.
Assuming that inductor current rises linearly from I1 to I2 in time period t1= T on .
V in = L I2- I1 / Ton = LI /Ton
Q. The energy stored in a 2-µH inductor is given by w L (t) = 9e -2t µJ for t ≥ 0. Find the inductor current and voltage at t = 1 s.
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Mathematical relationship between the induced e.m.f and the network Faraday noted that the e.m.f induced in a loop is proportional to the rate of change of magnetic flux by it:
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