35W Bridge Amplifier TDA7391 Circuit Diagram

Introduction

Amplifiers are one of the essential components of any audio system. They are used to boost the signals from the audio source to the speakers, making them louder and clearer. There are different types of amplifiers, including power amplifiers, preamplifiers, and integrated amplifiers. One of the most popular types of amplifiers is the bridge amplifier, which is commonly used in many audio systems. In this article, we will provide a deeper insight into the 35W Bridge Amplifier TDA7391. We will explore its features, functionality, and benefits. We will also discuss its applications, installation, and maintenance.

A bridge amplifier is a specific type of audio amplifier that is designed to enhance the performance of the audio system. It is designed to provide a high-output signal that can deliver high power to the speakers while maintaining a high level of audio quality. The bridge amplifier functions by using two amplifiers together in a bridge configuration. This design gives the bridge amplifier its unique capability to deliver high power to the speaker while reducing any distortion in the audio signal.

The TDA7391 is a famous bridge amplifier that is widely used in different audio systems. It can deliver up to 45 watts max into 4 ohms. The TDA7391 is designed with a unique feature called the class AB output stage that provides excellent audio quality and helps reduce power consumption. It also has built-in protection circuits that help prevent damage to the amplifiers.

In this article, we will provide a deeper insight into the TDA7391 bridge amplifier. We will explore its features, functionality, and benefits. We will also discuss its applications, installation, and maintenance.

Circuit Diagram

of 35W Bridge Amplifier TDA7391

This amplifier can be designed using a few basic components. The circuit diagram of this project is shown below.

**35W Bridge Amplifier TDA7391 Circuit Diagram**

More Circuit Layouts

**LA4440 Amplifier, Tone Control & MP3**

Bass Tone Control Circuit Diagram — **LA4440 Amplifier, Tone Control & MP3**

**Variable Power Supply 0-30V_10A Circuit Diagram**

Stereo Amplifier TDA7297 Dual-Bridge Circuit Diagram — **Variable Power Supply 0-30V_10A Circuit Diagram**

35W Bridge Amplifier TDA7391 PCB Layout

The Features of 35W Bridge Amplifier TDA7391

The TDA7391 bridge amplifier is packed with many features that enable it to deliver high-power audio output. Below are some of the critical features of the TDA7391 bridge amplifier:

Class AB Output Stage: The TDA7391 uses a class AB output stage that provides excellent audio quality while reducing power consumption. The class AB output stage is a combination of the class A and class B amplifier designs, which provides a more efficient power output.
Overload Protection: The TDA7391 has built-in overload protection circuits that help prevent damage to the amplifier. The protection circuits monitor the amplifier’s performance and reduce the output signal when it reaches a critical level, preventing damage to the speaker and amplifier.
Minimal External Components: The TDA7391 requires minimal external components, such as a power supply and a few capacitors. This makes it easy to install and maintain.

The Benefits of 35W Bridge Amplifier TDA7391

The TDA7391 bridge amplifier offers many benefits that make it popular among audio system designers. Below are some of the benefits of the TDA7391 bridge amplifier:

High-Quality Audio Output: The TDA7391 provides high-quality audio output, thanks to its class AB output stage. It reduces distortion in the audio signal, resulting in a clear, crisp, and powerful audio output.
Efficient Power Usage: The TDA7391’s class AB output stage reduces power consumption while delivering high-quality audio output. This makes it an efficient amplifier that helps reduce power consumption in audio systems.
Minimal External Components: The TDA7391 requires minimal external components, such as a power supply and a few capacitors. This makes it easy to install and maintain, reducing the overall cost of the audio system.
Built-in Protection Circuits: The TDA7391 has built-in overload protection circuits that help prevent damage to the amplifier and speakers. This ensures that the audio system lasts longer and provides consistent, high-quality audio output.

Applications of 35W Bridge Amplifier TDA7391

The TDA7391 bridge amplifier is widely used in various audio systems, including home theater systems, car audio systems, and professional sound systems. The TDA7391’s high power output and high-quality audio output make it an ideal amplifier for audio systems that require a powerful and clear sound.

Installation and Maintenance of T35W Bridge Amplifier TDA7391

The TDA7391 bridge amplifier is easy to install and maintain. It requires minimal external components, making it easy to set up and operate. However, it is essential to ensure that the amplifier is used within its specified limits to prevent damage to the amplifier and the audio system.

Conclusion:

In conclusion, the TDA7391 bridge amplifier is a fantastic amplifier that provides high-quality audio output and efficient power consumption. Its unique features, such as the class AB output stage and built-in protection circuits, make it an ideal amplifier for various audio systems. The TDA7391’s easy installation and minimal maintenance requirements make it an attractive option for audio system designers who are looking for an efficient and reliable amplifier. Overall, the TDA7391 bridge amplifier is an excellent amplifier that delivers high-quality audio output, making it a popular option among audio system designers.