This is simple audio Power amplifier circuit with MOSFET amplifier TL071C and TL072C may be up to 45W into 8 ohms. For MOSFET IRFP240 and IRFP9240 are used safety with device can now be these modification.
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| IRFP240,9240 MOSFET Amplifier Circuit |
The amplifier circuit is at the request SILICONIX and the voltage change of 2 serial resistances from suppliers operating voltage amplifier driver was inserted.
Amplifier efficiency is 70%, the reduction in the frequency distortion in more than 0.2% at 20 Hz at 8 ohms and 10W. With a supply voltage in the range of + – 30V, can supply audio amplifier MOSFET 45W into 8 ohms and 70W into 4 ohms. Remember that the sound amplifier is short, so all you can check the radio button is protected, whether the speaker is connected.
