Hi,
if you apply a voltage on the leads of an inductor. The current starts to flow through it. The current will ramp linearly. It depends from the period of time in wich the voltage is applied to the inductor leads, to how much the current peak value will reach.
The equation is:
U = - L×(dI/dt)
Where L is the inductance of the inductor.
The energy accumulated in the inductor for this period is given with:
E = ½×L×Ip²
Where Ip is the peak value reached for the specified period of time.
Then you have different schematic variants how to transfer this stored energy to the output.
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