TDA7294 Power Amplifier Circuit 120W - Tronicspro

Introduction

Amplifiers play a significant role in the world of electronics. They are used for amplifying different types of signals, such as audio, radio, and television signals. Among the different types of amplifiers, power amplifiers are one of the most important. A power amplifier is designed to amplify the power of an input signal, resulting in a much stronger output signal. In this article, we will discuss the TDA7294 Power Amplifier Circuit 120-watts amplifier, its features, and how it operates

The TDA7294 IC is commonly used in power amplifiers. It is a class-AB amplifier that is capable of producing a maximum output power of 120 watts. This amplifier is designed for use in high-quality industrial and consumer applications. It is used in applications such as Hi-Fi amplifiers, home theatre systems, and professional audio equipment.

Circuit Diagram

of TDA7294 Power Amplifier Circuit

**TDA7294 Power Amplifier 120W PCB & Layout**

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Working Explanation

of TDA7294 Power Amplifier Circuit

The Power 120-Watts Amplifier using TDA7294 IC is an exciting project for electronics enthusiasts who are looking to build their amplifiers.

Features of the Power 120-Watts Amplifier using TDA7294 IC:

Output Power: The amplifier can deliver an output power of up to 120 watts per channel at 4 ohms load and 70 watts per channel at 8 ohms load.

High Input Impedance: The amplifier has a high input impedance of 50K ohms, making it compatible with a wide range of audio sources.

Low Distortion: The amplifier has a low distortion of less than 0.1% THD for most of the operating conditions.

Thermal Protection: The amplifier has built-in thermal protection that protects the amplifier from overheating.

Short Circuit Protection: The amplifier has built-in short circuit protection that protects the amplifier from any electrical faults.

Simple Design: The amplifier has a simple design and can be easily assembled, making it an ideal project for beginners.

How it operates:

The Power 120-Watts Amplifier using TDA7294 IC has a simple design that consists of a few resistors and capacitors, and a power supply unit. The amplifier operates by taking an input signal from an audio source, amplifying it, and then delivering the amplified signal to a speaker.

During operation, the input signal is fed to the amplifier circuit via a coupling capacitor. The input signal is amplified by the TDA7294 IC, which is configured in a bridged mode. The bridged mode configuration ensures that the amplifier can deliver a high output power of 120 watts.

The TDA7294 ICs also have built-in thermal and short-circuit protection, which protects the amplifier from overheating and electrical faults. The output of the amplifier is then fed to the speaker via a capacitor.

Conclusion

In conclusion, the Power 120-Watts Amplifier using TDA7294 IC is an exciting project for electronics enthusiasts who are looking to build their amplifiers. It is an easy-to-assemble, high-quality amplifier that delivers an output power of up to 120 watts. With a simple design and a low distortion of less than 0.1% THD, this amplifier is perfect for Hi-Fi amplifiers, home theatre systems, and professional audio equipment.

Overall, the Power 120-Watts Amplifier using TDA7294 IC is a must-have for anyone looking to develop their skills in electronics, as well as those looking to create their own high-quality amplifiers. So, if you are an electronics enthusiast looking for a new project, this amplifier is definitely worth considering.