Category: Amplifier Circuit

In many electronics projects, you need to amplify weak signals without adding noise. This article will guide you through building a precision amplifier circuit using OP07 operational amplifiers and a CD4052 multiplexer. The great thing about this design is its ability to switch between different input signals, making it versatile for applications like sensor interfacing, data collection, and instrumentation. What is a Precision Amplifier? Simply put, a precision amplifier boosts small signals—like those from sensors—without adding much noise or distortion. These amplifiers are often used when accuracy matters, such as…

Introduction: In the world of electronics, different types of waveforms are essential for testing various circuits. A sine wave signal is commonly used for assessing linear circuits such as amplifiers and filters. In contrast, a square wave input becomes crucial when testing digital circuits like flip-flops, counters, and registers. In this article, we’ll delve into constructing and operating an audio function generator utilizing the specialized integrated circuit, ICL8038. Notably, this audio function generator circuit offers not only sine and square waves but also triangle waves. Circuit Description and Operation of…

A signal which contains almost all frequencies is called white noise. In an audio system white noise contains only audible frequency. The white noise of the electrical system is analogous to white light from optics, where white light contains all frequencies or colors. White noise is mostly used in the testing audio equipment like pre-amplifier, power amplifiers, filters, etc. Check out the article on Electrical noise | Types of Electrical Noise. So, today in this article we are going to describe a simple white noise generator circuit. This circuit can…

Electronics hobbyist love to design their own gadget which cam be used in our daily life. In the website Best Engineering Projects, we had published 100’s of such project which make life easy and sophisticated. In this post you will learn how to design your own Best audio amplifier circuit with premium specification. Specification of Best Audio Amplifier Circuits Output impedance of the circuit: 0.01Ω Frequency response i.e. working frequency: 20 Hz to 40 KHz Total harmonic distortion: 1.2% at 3W. Load or Speaker at output: 3Ω to 8Ω Description…

Single channel audio amplifier is readily available over internet, generally we combine multiple single channel amplifier in order to built multiple channel amplifier. But here in this post you will learn how to design four channel audio amplifier circuit using TDA1554Q IC. This type of circuit is very useful in sound lab, school, office etc. where we need multiple into and multiple output. Specification and Advantage of Four Channel Audio Amplifier Circuit Four input and four output port At load it provides 11W of power and at load it provide 6W…

Stereo Amplifier Circuit Diagram we are going to design here is basically the combination of two mono audio amplifier. Portable and good audio amplifier is still a major concern to many electronic hobbyists and professional. People are still searching for good portable and battery-operated stereo amplifier. So, here in this article you will learn about designing of stereo amplifier using two audio amplifier IC. This stereo amplifier works with low voltage battery (4.5V, 6V) or even with a USB interface (+5V). In order to achieve above specification, we most design…