filters

How to Build a High Efficiency Class-D Audio Amplifier using MOSFETs

Audio content has come a long way over the past decades, from a classic tube amp to modern-day media players, technological...

AC Phase Angle Control for Light Dimmers and Motor Speed Control using 555 Timer and PWM Signal

Home automation systems are increasingly gaining popularity day by day, and nowadays it's become easy to turn on & off...

Audio Equalizer / Tone Control Circuit with Bass, Treble and MID Frequency Control using Op-Amp

Tone control or Active equalizer circuit especially bass, treble, and MID control based Equalizer is an important circuit in...

Impedance Matching Filter Circuit Design – LC, L and PI Filters

In the previous article, we discussed the basics of impedance matching and how to use an impedance matching transformer. Apart...

Design Techniques for Reducing EMI in SMPS Circuits

In my previous article on EMI, we examined how the intentional/unintentional nature of EMI sources and how they affect the...

Simple 2x32 Watt Audio Amplifier with TDA2050

If you are thinking about building a simple, cheap, and moderately high power amplifier circuit that can deliver up to 50-watt...

Butterworth Filter: First Order and Second Order Low Pass Butterworth Filter

Electric filters have many applications and are extensively used in many signal processing circuits. It is used for choosing or...

Pi Filter - Overview, Working, Construction, Application and Design Tips

Filters are commonly used in power and audio electronics to reject unwanted frequencies. There are many different types of...

Band Pass Filter Circuit

Every analog designer’s nightmare would be to deal with noise in his circuit. When it comes to switching circuits or Audio...

Harmonic Filter Circuit: How to remove Harmonics using Active and Passive Harmonic Filters

What is Harmonics in Electrical System?

In power systems, harmonics are defined as positive integer multiples of the...