230W Audio Amplifer Circuit With MOSFET IRFP240,9240

230 W MOSFET Audio Amplifer Circuit

Here is simple LED-power audio amplifier circuit with MOSFET amplifier TL071C and 2 may be up to 45 W into 8 ohms.

For MOSFET IRFP240 and IRFP9240 are used safety with device can now be these modification.

The scheme is at the request SILICONIX and the voltage change of 2 serial resistances from suppliers operating voltage amplifier driver was inserted.

MOSFET must be mounted on at least one condenser 1K / W.

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.