Write the function of C and L in π filter and write two advantages of π filter over other filters.

Write the function of C and L in π filter and write two advantages of π filter over other filters.
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1 Answer

Answer :

The capacitors C1 and C2 provide a low reactance path for the ripple whereas the series inductor L provides a high reactance to the ac ripple. The combined effect of this is the reduction in ripple, and improvement in the output waveform.

Advantages:

1. Easy to design

2. Reduction in the ripple content of the output voltage waveform

3. In addition to that the ripple factor is very low.

4. High dc voltage (approximately Vm)

5. Increase in the average load voltage. 
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