what are the merits and demerits of inductor filter
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There are some advantages of series inductor (L) filter which are given below,
The series inductor (L) filter reduces the ripple in the DC output of rectifier circuit.
It has no surge current through diode.
It has low ripple factor at heavy load currents i.e. low load resistance.
There are some disadvantages of series inductor (L) filter which are given below,
It cannot be used with half wave rectifier, but it is to be always used with full wave rectifier.
It gives low output DC voltage for larger value of inductance.
It has poor voltage regulation.
It has high ripple factor for light loads i.e. small load currents.
It is not suitable for light loads as ripple factor is directly proportional to the load resistance RL.
It produces audible noise.
It is bulky and more costly.
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