TDA2030 Bass Amplifier Circuit Diagram using BD907 & BD908

Introduction

The TDA2030 Bass Amplifier Circuit Diagram is a powerful and versatile circuit that utilizes the TDA2030 amplifier IC along with complementary transistors BD907 and BD908 to deliver high-quality bass amplification. This circuit is widely used in audio systems, particularly for amplifying low-frequency signals. In this article, we will explore the working principle, specifications, and advantages of this circuit.

Specifications of TDA2030, BD907 & BD908:

TDA2030:

1. Power Output: The TDA2030 can deliver a maximum power output of 14 watts into a 4-ohm speaker load.
2. Input Voltage: The recommended input voltage range for optimum performance is between 18V and 24V.
3. Total Harmonic Distortion: The THD value of TDA2030 is typically around 0.08% at 14-watt output.
4. Frequency Response: It features a frequency response of 20Hz to 20kHz, ensuring accurate reproduction of bass frequencies.
5. Amplification Gain: The TDA2030 has a fixed amplification gain of 32 dB.

BD907 & BD908:

1. Complementary Pair: The BD907 and BD908 are complementary transistors used to enhance the performance of the TDA2030 circuit.
2. Maximum Voltage: Both BD907 and BD908 can withstand a maximum collector-emitter voltage of 45V.
3. Current Gain: BD907 and BD908 have a current gain of around 100 to 600, ensuring sufficient amplification.
4. Package Type: BD907 and BD908 are available in the TO-126 package, offering easy integration in various amplifier designs.
5. Thermal Resistance: The thermal resistance of both transistors is around 5°C/W, ensuring proper heat dissipation.

TDA2030 Bass Amplifier Circuit Diagram

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

24V Single Power Supply

More Circuit Layouts

Components List of TDA2030 Bass Amplifier Circuit Diagram

Following is the list of all components used in this project:

• BD907 Transistor x 1
• BD908 Transistor x 1
• TDA2030 Amplifier IC x 1
• 56k Resister x 3
• 3.3k Resister x 1
• 1.5Ω Resister x 2
• 30k Resister x 1
• 1Ω Resister x 1
• 2.2uF Capacitor x 1
• 22uF Capacitor x 1
• 1000uF Capacitor x 1
• 2200uF Capacitor x 1
• 0.22uF Capacitor x 3
• 10uF Capacitor x 1
• 1N4007 Diode x 2

Explanation of TDA2030 Bass Amplifier Circuit Diagram

TDA2030 is a commonly used monolithic integrated circuit amplifier chip that is widely used for audio amplification purposes. This chip consists of an amplifier circuit and requires a few additional components to form a complete amplifier circuit. In this bass amplifier circuit diagram, TDA2030 is used in the preamplifier section, while BD907 and BD908 transistors are used in the output section.

The preamplifier section plays a crucial role in amplifying the weak audio signals before they are further amplified by the output section. The TDA2030 chip is designed to work as a high voltage audio amplifier, with a wide frequency response and low distortion characteristics. It can deliver a maximum output power of 14W (8Ω), making it suitable for the amplification of audio signals.

The output section of the amplifier circuit consists of BD907 and BD908 transistors. These transistors act as power amplifiers and are responsible for driving the speakers. BD907 is a PNP transistor, while BD908 is an NPN transistor. Together, they form a push-pull configuration, which helps in generating a high-quality audio output with good bass response.

Conclusion

The TDA2030 Bass Amplifier Circuit Diagram utilizing the TDA2030 amplifier IC, along with BD907 and BD908 transistors, is an efficient and reliable solution for bass amplification. With its impressive power output, low distortion, and wide frequency response, this circuit provides a high-quality audio experience. The complementary transistors BD907 and BD908 enhance the overall performance of the circuit, ensuring adequate amplification and thermal stability. Whether for use in home audio systems or professional setups, the TDA2030 Bass Amplifier Circuit Diagram offers exceptional sound reproduction and reliability.

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