Introduction
In the electronics industry, We widely design audio amplifiers that strengthen audio signals. One of the great applications of audio amplifiers is in the automotive industry. For example, vehicles like cars, etc use the audio amplifier to boost the audio signal. Also, it amplifies the signal generated by the head. So, In this tutorial, we are going to “Car Audio Amplifier Circuit 15W-15W” The circuit uses the integrated radio amplifier TDA7297. The IC is reasonable and inexpensive. To make the circuit, remember to use a good-quality board. Also, you can use the heat sinks as the IC dissipates some heat.
Hardware Required
| S.no | Component | Value | Qty |
|---|---|---|---|
| 1. | IC | TDA7297 | 1 |
| 2. | Speaker | – | 2 |
| 3. | Zener Diode | 2.7v | 1 |
| 4. | Potentiometer | 50KΩ | 1 |
| 5. | Switch | – | 1 |
| 6. | Ceramic Capacitor | 0.22uF, 100nF | 2, 1 |
| 7. | Electrolyte Capacitor | 10uF, 470uF | 1, 1 |
| 8. | Resistor | 47K | 2 |
| 9. | 2-Pin Connector | – | 3 |
Circuit Diagram
Working Explanation
In this Car Audio Amplifier Circuit, we are using IC TDA7297 which includes a 15W+15W Dual bridge amplifier and is very convenient for low-power car audio amplifiers. This amplifier IC can take a wide range of supply voltage from 6V to 18V. Moreover, It provides a good audio output signal with minimal external components. IN1 and IN2 in this circuit represent stereo Audio input. You can also connect the potentiometer to these pins to control the volume of sound. There are two output speakers present in the circuit.
Application and Uses
This circuit is mainly for cars and vehicles. But with some modification, it can be used in:
- Public address systems.
- Home theatre systems.
- Guitar circuits, etc.
