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CBSE Class 12-science Answered

PLEASE EXPLAIN THE WORKING OF A SERIES INDUCTANCE FILTER AND SHUNT CAPACITOR FILTER IN A DIODE RECTIFIER.
Asked by ADITI JHA | 21 Dec, 2011, 03:52: PM
Expert Answer
While half-wave and full-wave rectification suffice to deliver a form of DC output, neither produces constant-voltage DC. In order to produce steady DC from a rectified AC supply, a s
 
moothing circuit or filter is required.   In its simplest form this can be just a reservoir capacitor or smoothing capacitor, placed at the DC output of the rectifier. There will still remain an amount of AC ripple voltage where the voltage is not completely smoothed.
 
 
 
 
To further reduce this ripple, a capacitor-input filter can be used. This complements the reservoir capacitor with a choke (inductor) and a second filter capacitor, so that a steadier DC output can be obtained across the terminals of the filter capacitor. The choke presents a high impedance to the ripple current.
Answered by | 22 Dec, 2011, 10:20: AM
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