Bridge Audio Power Amplifier Circuit Diagram

Introduction

When it comes to audio amplifiers, there are many different types of circuits that can be used. One of the most common is the bridge audio power amplifier, which uses a couple of LM0101 ICs. In this article, we will take a closer look at this type of circuit and how it works.

The bridge audio power amplifier circuit is a type of amplifier that is designed to operate with a specific load impedance, typically 8 ohms. The circuit typically consists of two LM0101 ICs, each of which is a high-power op-amp. These op-amps are used in a bridged configuration, which means that they are used in such a way that the output voltage is twice that of the input voltage.

In the bridge audio power amplifier circuit, the two LM0101 ICs are connected in a push-pull configuration. This means that one IC is used to amplify the positive half of the audio signal, while the other IC is used to amplify the negative half of the audio signal. The two amplifiers are then connected to a load, typically an 8-ohm speaker.

Circuit Diagram

of Bridge Audio Power Amplifier

Following is the circuit diagram of this project, which will guide you to build the project easily.

More Circuit Layouts

Components List

of Bridge Audio Power Amplifier

• R1-R4 -CURRENT LIMIT RESISTOR = 0.15 Ohms / 2W
• R5 -FEEDBACK RESISTOR = 5k Ohms
• R6 -FEEDBACK RESISTOR = 15k Ohms
• R7-R10 -INPUT RESISTORS = 10k Ohms
• C1-C4 -BYPASS CAPACITORS = 47 uF / 25 V ELECTROLYTIC
• C5-C8 -BYPASS CAPACITORS = 10 μF / 25 V TANTALUM
• C9-C12 -BYPASS CAPACITORS = 0.1uF / 25V CERAMIC

Working Explanation

of Bridge Audio Power Amplifier

The push-pull configuration of the bridge audio power amplifier circuit has several advantages. One advantage is that it reduces the amount of distortion that is produced by the amplifier. This is because the distortion that is produced by one amplifier is canceled out by the other amplifier. Another advantage is that it allows the amplifier to provide more power to the load. This is because each amplifier is only required to provide half of the output voltage, which means that each amplifier can operate more efficiently.

The LM0101 ICs that are used in the bridge audio power amplifier circuit are high-power op-amps that are capable of delivering up to 100W of power per channel. These ICs are designed to operate as voltage amplifiers, meaning that they are used to amplify the voltage of the audio signal. They are also designed to operate as current amplifiers, meaning that they are used to amplify the current that is delivered to the load.

More Explanations:

The LM0101 ICs are typically connected to a power supply that provides a voltage of around 35V. This voltage is used to power the op-amps and to provide the necessary voltage for the amplifier to produce the desired output power. The power supply must be able to provide enough power to meet the demands of the amplifier, which means that it must be capable of delivering around 200W of power for a stereo amplifier.

The bridge audio power amplifier circuit can be used in a variety of different applications. It is commonly used in home theater systems, where it is used to drive the main speakers. It is also used in automotive audio systems, where it is used to drive the speakers in a car. The bridge audio power amplifier circuit is also used in professional audio systems, where it is used to power large speakers in concert venues and other large venues.

Conclusion

In conclusion, the bridge audio power amplifier circuit is a powerful and efficient type of amplifier that is capable of delivering high-quality audio to a variety of different types of loads. Its push-pull configuration allows it to produce more power than other types of amplifiers, while its use of high-power op-amps allows it to operate efficiently and with low distortion. Whether you are looking to build your own amplifier or you are interested in purchasing one, the bridge audio power amplifier circuit is an excellent choice that is sure to provide you with the performance and power that you need.

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