Introduction
An audio amplifier’s job is to take a small signal and make it bigger without changing it in any way. This is a difficult process since most musical sounds comprise several frequencies, all of which are being amplified by the same factor to prevent affecting the waveform and hence the sound quality. Audio Amplifiers are included in the audio systems to boost audio signals from any source. In other words, amplifiers at the output enhance low-power electrical audio signals. Op Amps are ideal for low-power audio work if you’re seeking a cost-effective solution. And, that’s why we have decided to make a TDA2030 Audio Amplifier 15W Circuit.
For creating the amplifier circuit, the IC TDA2030 is the best option. Because it is a low-cost, simple-to-use IC that is appropriate for electronics newbies. This circuit is made up of a variety of electronic components. Turning up the level on this circuit allows you to hear the sound clearly. We divided the circuit into two parts, the power supply, and the actual amplifier circuit.
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Hardware Components
The following components are required to make Audio Amplifier Circuit
| S.no | Component | Value | Qty |
|---|---|---|---|
| 1. | IC | TDA2030 | 1 |
| 2. | Speaker | – | 1 |
| 3. | DC Audio Jack | – | 1 |
| 4. | Diode | 1N4007 | 4 |
| 5. | Capacitor | 4.7uf, 47uf, 1000uf | 1, 1, 2 |
| 6. | Resistor | 10k, 22k, 4.7k, 1K | 1, 2, 1, 1 |
| 7. | Stepdown transformer | – | 1 |
TDA2030 Pinout
For a detailed description of pinout, dimension features, and specifications download the datasheet of TDA2030
Audio Amplifier Circuit
Working Explanation
In this TDA2030 Audio Amplifier 15W Circuit, we are using an AC supply and that’s why we first need the power supply circuit. So in this case, the circuit is divided into two parts.
In the first part, there is a transformer that steps down the 220V AC. Then we made the rectifier circuit to convert AC into DC, which may have ripples that are filtered by the capacitor. There is an LED in the circuit that turns ON when getting the DC supply.
This DC supply is now given to turn ON the main circuit, we then provide the input audio signal to the circuit. The circuit is effectively blocking the DC component of the input signal using a coupling capacitor, letting only AC pass through. The amplifier’s amplified output is subsequently delivered to an audio transducer like a loudspeaker.
Application and Uses
- When we require high power amplification.
- It’s utilized in audio speakers to create a cascading effect.
- Headsets, microphones, speakers, and other audio electrical equipment
- This circuit can set up home theatre systems.
- For the purpose of recording.
