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<p>
This is a <a
href="http://hyperphysics.phy-astr.gsu.edu/hbase/electric/filcap.html">high-pass
filter</a> implemented using a resistor and a capacitor. A
high-pass <a href="http://en.wikipedia.org/wiki/Electronic_filter">filter</a> passes
higher frequencies and attenuates lower
frequencies. The
input frequency keeps changing, sweeping up and down the
spectrum to demonstrate the change in response.
The capacitor passes higher frequencies, causing the output voltage to
fluctuate more. Lower frequencies are blocked, and there is
reduced current across the resistor, keeping the
output voltage closer to ground.
<p>The breakpoint (-3 <a href="http://en.wikipedia.org/wiki/Decibel">dB</a> point) is
shown at the lower right, as "f.3db".
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Next: <a href="e-filt-hipass-af.html">High-Pass Filter response (RC)</a><p>
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<br>Generated Wed Dec 7 2016
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