400 watt hi-fi stereo Power Amplifier Circut TDA2030 Transistor Bridge

A circuit I tried a long time ago was the only channel I made. The bridge 2030 outputs were powered by transistors. In this application, plus two circuits connected in parallel with the bridge, the power was doubled.

Amplifier supply voltage is symmetric +- 22 volts, unless an error is made, a circuit that is certain to work, also if you type “tda2030 bridge” in the search box on google and search for pictures, you can find many similar applications if you make two from the same circuit on a single plate, you will have a two-channel stereo 400watt amplifier. and use insulators when mounting the transistors to the heatsink.

Sinus 4Ω speakers continuous power: 150 Watts
In 4Ω speakers Peak Power: 200 Watts
Bandwidth (- 3 dB): 10 Hz to 50 kHz
THD 20 W / 1 kHz: 0.22%
THD 100 W / 1 kHz: 0.23% to
THD 130 W / 1 kHz: 0.36%
150 W att Efficiency: 60%
Input sensitivity: 500 mVeff
Input Impedance: 22 K

The peak-to-peak voltage Vpp, with a load resistance at the 4 Ω pending an output of 200 watts, is 80 volts. If we add another additional voltage drop across the output stage transistors added, the supply voltage must a corresponding 200 watts power amplifier least 85 V be – and under full load. The peak current in the peak of the sine wave is about 10 A, i.e. Stereo operation with 2 amps flowing after all 20 A.

If one is satisfied with an effective Continuous output of 2 x 150 W = 300 W, so has the power of the to be controlled Transformer under consideration a middle-amplifier efficiency 60% accounts for at least 500 VA are. Toroidal transformers offer this especially, since they are very one have low internal resistance, and Therefore, in many cases an additional electronic voltage stabilizer can be dispensed with. Substituting other

400W Amplifiers and Power supply circuit diagrams

400w hi-fi stereo Power Amplifier circuit files: