Butterworth filter is a type of filter whose frequency response is flat over the passband region. Low-pass filter (LPF) provides a constant output from DC up to a cutoff frequency f(H) and rejects all ...

The problem was to design a low-pass filter which could be inserted in a video circuit - in particular ... photocopying or storing it in any medium by electronic means) without the prior written ...

The 30MHz low-pass filter, as QUCS delivered it. Happily as with so many other fields, in recent decades the advent of affordable high-power ... and it spits out a circuit diagram, which we ...

This happens independent of the applied recording medium. To remove this unwanted low frequencies, subsonic filters like the circuit featured here is used. The subsonic filter is actually an active ...