It will filter of all the frequency that is below the set value and above the set value. So in this tutorial, we will learn about this Band Pass filter, the theory behind it and how it can be used in practical circuits.Ī bandpass filter circuit/device is used to allow only a pre-defined set of frequencies to pass through it. There are many types of filter circuit, but the most commonly used and efficient one is the Band Pass Filter which can be easily constructed using a pair of resistor and capacitors. As the name suggests, this circuit will filter out the unwanted signals (noise) from the actual signal. Out of the many ways to remove noise from a circuit, the most used one is called a Filter Circuit. ![]() ![]() When it comes to switching circuits or Audio amplifiers or frequency signal circuits there is a very good chance for the circuit to be affected by noise signals. Every analog designer’s nightmare would be to deal with noise in his circuit.
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