Filter circuit used with low current equipment to prevent the rectifier diodes from damage of high peak current pulses
Q. Which filter circuit is most often and specifically used with low current equipment in order to prevent the rectifier diodes from damage of high peak current pulses?- Published on 20 Oct 15a. R-C Filter
b. C-L-C Filter
c. L-C Filter
d. Series Inductor Filter
ANSWER: C-L-C Filter
C-L-C filter (or Pi- filter) comprises one inductor and two capacitors connected in Л configuration. Hence, it is also known as capacitor input Л filter.
The function of filtering is more better as compared to L-C filter circuit. Generally, the connection of capacitor C1 is configured directly across the supply.
Due to this, the necessity of high pulse current arises because of the generation of load current to greater extent.
The presence of these high peak current pulses may prove to be pernicious to damage the rectifier diode.
However, it is obligatory for C-L-C filters to be conditionally used with low-current equipment.
