How are the three major filters derived?

乱世煮酒论天下

How are the three major filters derived? [Copy link]

How are the three most common filters, Butterworth, Chebyshev, and Bessel, derived? How are the three most common active filters composed of passive filters (RC, LC) and basic circuits built with op amps (such as integrators)? Especially, how can they form multi-order filter structures?

Based on the duality of the circuit, is it possible to exchange the components of the passive filter circuit in the existing active low-pass filter structure to achieve the conversion between high-frequency filtering and low-frequency filtering?

qwqwqw2088

How are the three major filters derived?

These are all common filter derivations. These are basic knowledge and not difficult questions. It is recommended to read the book. The process of formula derivation is systematic and accurate.

for example:

Signals and Systems

Fundamentals of analog electronic circuits

乱世煮酒论天下

qwqwqw2088 posted on 2024-7-26 07:28 How are the three major filters derived? They are all common filter derivations. These basic knowledge are not difficult problems. It is recommended to read...

How did he come up with this idea? Using op amps to build filters What is the role of op amps? High input impedance and feedback

极限零

Discussing the world in a chaotic world published on 2024-7-26 08:33 How did he come up with this idea? Using op amps to build filters What is the role of op amps? High input impedance and feedback

Well, what's the use of knowing how he came up with this idea...

When you work in a field for a long time, many things will come naturally.