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Why inductor is used in full wave rectifier?
The circuit diagram and smoothened waveform of a Full wave rectifier output is shown below. As shown in the circuit diagram above, the inductor L allows the dc to pass but restricts the flow of ac components as its dc resistance is very small and ac impedance is large.
Which filter is used in full wave rectifier?
capacitor filter
In the full wave rectifier circuit using a capacitor filter, the capacitor C is located across the RL load resistor. The working of this rectifier is almost the same as a half wave rectifier.
What is inductor filter?
LC filters refer to circuits consisting of a combination of inductors (L) and capacitors (C) to cut or pass specific frequency bands of an electric signal. Capacitors block DC currents but pass AC more easily at higher frequencies.
How does an inductor act as a filter?
In series inductor filter the inductor is connected in series with the rectifier output and the load resistor. Thus, it is called series inductor filter. The property of an inductor to block AC and provides zero resistance to DC is used in filtering circuit.
What is the difference between inductor filter and capacitor filter?
A capacitor allows A.C only and inductor allows D.C only to pass. So a suitable L and C network can effectively filter out the A.C component from rectified wave. For example, an inductor allows the D.C to pass through it. But it blocks A.C. On the other hand, a capacitor allows the A.C to pass through it.
How does a full wave rectifier work with a filter?
The working of the full wave rectifier with filter is almost similar to that of the half wave rectifier with filter. The only difference is that in the half wave rectifier only one half cycle (either positive or negative) of the input AC current will charge the capacitor but the remaining half cycle will not charge the capacitor.
Why are inductor filters used in bridge rectifiers?
Inductor filters can be used to improve the output quality of half-wave, full-wave, or bridge rectifiers. However the best output signal will be achieved by combining a filter with a rectifier that produces a full output wave such as full-wave and bridge rectifiers.
How is an inductor connected to a filter circuit?
The circuit diagram of a full wave rectifier with a series inductor filter is given below. As the name of the filter circuit suggests, the Inductor L is connected in series between the rectifier circuit and the load. The inductor carries the property of opposing the change in current that flows through it.
Which is better a half wave or full wave filter?
Hence the voltage across the capacitor is more constant if the load current is less. It can work with both Half wave and full wave rectifier. The main advantage of the filter is small in size, low cost, simple circuit. In L-filter an Inductor or choke is connected in series with the load.