Introduction
Analog filters are a key element of signal processing in electronic systems, and play a role in passing or blocking specific frequency bands. They are widely used in various fields such as communications, audio systems, radio, and TV, and play an important role in selecting desired signals and removing noise. Despite the advancement of digital technology, analog filters still provide cost-effective solutions for low-frequency simple filtering tasks or high-frequency applications. In particular, the role of analog filters is very important in power conversion, sensor signal processing, and audio equalizers. Considering the various applications and importance of these analog filters, understanding analog filters in electronic engineering is essential.
Theory
By simultaneous equations ① and ② , we obtain the following transfer function.
Design
Frequency response
Simulation
HW test
