TDA2030 is one of the cheapest chips with good sound. But in a amplifier the most expensive parts are the radiators and the transformer.
A bare chip can give power up to 18 watts. It is suitable for satellits. A circuit with additional transistors can give 35 W for 4 Ohm load. The bridge circuit also gives 35 W, but for 8 ohm load.
Schemes are in datashit and there are a lot of them on the Internet .
A bare chip can give power up to 18 watts. It is suitable for satellits. A circuit with additional transistors can give 35 W for 4 Ohm load. The bridge circuit also gives 35 W, but for 8 ohm load.
Schemes are in datashit and there are a lot of them on the Internet .
The choice of the scheme depends of the availability and the values of the components.
What speakers do you already have? what is their power and resistance?
And if you are going to build an amplifire based on TDA2030 chips with a total power of 70 watts you will need a transformer of 80 W at least. Its secondary coil must be ~30 volts or it may be two coils ~15 volts each. Do you have one such?
What speakers do you already have? what is their power and resistance?
And if you are going to build an amplifire based on TDA2030 chips with a total power of 70 watts you will need a transformer of 80 W at least. Its secondary coil must be ~30 volts or it may be two coils ~15 volts each. Do you have one such?
I'm sorry, I was wrong. There sould be one of ~28 volts or two of ~14 volts.
I agree with anti. If you ask
maybe it will be better if you build first a more simple amp based for example on STA540 or TDA1557/1558/8560.
Found these designs based on Tda7294. Will these work.
Circuit dynamic power amplifier with TDA7294 - bridge 180W or stereo 80W - Xtronic
Circuit dynamic power amplifier with TDA7294 - bridge 180W or stereo 80W - Xtronic
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