Hi,
as seen in the attached screenshot, three waveforms are displayed. The red one is basically the blue signal that has gone
though a high-pass filter (cutoff frequency at 5 Hz). It is a Sallen-Key filter whose amplifier is single-supplied, providing a
rail-to-rail of 0-5V. Knowing the HPF will decrease the impact of the DC offset and components up to around 5 Hz, it led to the
generation to some sort of a rectified half-wave. Could it be the result of the lower rail (0V) limitation, thwarting the other half of the wave from
swinging into the negative voltages? Basically, a self-created anomaly.
as seen in the attached screenshot, three waveforms are displayed. The red one is basically the blue signal that has gone
though a high-pass filter (cutoff frequency at 5 Hz). It is a Sallen-Key filter whose amplifier is single-supplied, providing a
rail-to-rail of 0-5V. Knowing the HPF will decrease the impact of the DC offset and components up to around 5 Hz, it led to the
generation to some sort of a rectified half-wave. Could it be the result of the lower rail (0V) limitation, thwarting the other half of the wave from
swinging into the negative voltages? Basically, a self-created anomaly.
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