LOW PASS FILTER CALCULATOR USING RC


Enter Resistor and Capacitor values and press "Calculate" to find the Cutoff Frequency.

INPUT :

Resistor (R):
Capacitor (C):


OUTPUT :

Cutoff frequency (Fc): Hertz

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Formula:


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where, ℿ = 3.147 (constant value)


The passive RC Low Pass Filter Calculator calculates the cutoff frequency point of the Low Pass Filter, based on the values of the resistor and the capacitor of the circuit.


A Low Pass Filter is a Filter which passes Low-Frequency signals and blocks High-frequency signals. A Low pass filter composed of a resistor and a capacitor is called a Low pass RC filter.


Frequency Response of a 1st Order Low Pass Filter Circuit:


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Applications:


• The main usage of the low pass filter circuits is to avoid A.C. ripples in the rectifier output. The low pass filter is used in audio amplifier circuits

• By using this passive low pass filter, we can directly reduce the high frequency noise to a small disturbance mode in the stereo systems.

• Low Pass filter as integrator can be used as Wave shaping and wave generating circuits because of easy conversion of one type of electrical signal in to another form.

• These are also used at demodulator circuits to extract required parameters from the modulated signals.

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