TDA7294 Amplifier Circuit Diagram RMS 300W

TDA7294 Amplifier Circuit Diagram RMS 300W

This is TDA7294 RMS 300W Amplifier Circuit Diagram. This amplifier has four pieces of power IC TDA7294. That’s mean this circuit uses two IC’s of every single channel in bridge mode. Here load value must not be less than 8 Ohms.

Main advantages of this circuit:
* High power with low voltage.
* Considerable power, even at high load values (Up to 16 Ohm).
With a load of 8 Ohms and a power supply voltage ±25V max, the maximum performance that can be obtained is 150W per channel. While with 16 Ohms load, and a power supply voltage of ±35V, we will have a maximum of 170W per channel.

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300W Back ok 300W front with component 300W front with symbol

TDA7294 Amplifier Circuit Diagram RMS 300W back

TDA7294 Amplifier Circuit Diagram RMS 300W Parts List

IC’s
4 pieces TDA7294 IC

Resistors

4 pieces 1K Ohms

2 pieces 22K Ohms

4 pieces 2.7 Ohms 1W

4 pieces 8.2 Ohms 1W

14 pieces 5K1A Ohms

3 pieces 8K2 Ohms

8 pieces 56K Ohms

Capacitors
2 pieces 390 pF / ceramic capacitor

4 pieces 10 pF / ceramic capacitor

4 pieces 0.47 uF / 100v polyester capacitor

4 pieces 0.1 uF / 100v polyester capacitor

4 pieces 0.1 uF / 250v polyester capacitor

4 pieces 1 uF / 35v electrolytic capacitor

12 pieces 22 uF / 35v electrolytic capacitor

2 pieces 4700 uF / 35v electrolytic capacitor

Other Components
4 pieces coils of 10 coils with air core of 1/4 inch and wire 18

4 pieces Square mica insulation

1 piece 18x18v to 12 Amp transformer

1 piece small 6-pin connector

2 pieces large 3-pin connectors

2 pieces small 3-pin connectors

4 pieces fuse holders for printed and 6 amp fuse

2 pieces 1N4148 Diode

1 piece 25-amp diode bridge.

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