A Rectifier is required to produce pure D.C supply for using at various places in the electronic circuits. However, the output of a rectifier has pulsating character. It contains A.C and D.C components. The A.C component is undesirable and must kept away from the load. To do so, a filter circuit is used which removes the A.C component and allows only the D.C component to reach the load.
A filter circuit is a device which removes the A.C component of rectification output but allows the D.C component to reach the load.
A filter circuit is a device which removes the A.C component of rectification output but allows the D.C component to reach the load.