High Pass Filter
Filters in electronic circuits which function to pass in the desired frequency and resist unwanted frequencies. In this article high pass filter or a filter that will pass over on to say simply. High-pass filter is a circuit that will pass a signal which is above the cut-off frequency (ωc) until the cut-off frequency (ωc) and will hold a series of cues that frequency below the cut-off frequency (ωc) circuit. Filter base composed of high-passs with RC circuit as follows.
The resonant frequency of the high-pass filter time constant following the value (τ) of the RC circuit.
Τ = RC
So that the cut-off frequency of the filter are:
fc = 1 / (2πRC)
the output of high-pass filter preceding the input is:
Φ = tan-¹(1/ωRC)
The characteristics of this filter is shown in the figure below:
Hopefully a brief description of the High pass filter can be helpful and beneficial to the reader. Especially in the search for materials about the basic theory of the high pass filter or pass filter above.