Audio Amplifer Circuit 230W With MOSFET IRFP2409240

Description: This is a simple LED-powered audio amplifier circuit utilizing a MOSFET amplifier with the TL071C operational amplifier. It can deliver up to 45 W into an 8-ohm load. The circuit incorporates the MOSFETs IRFP240 and IRFP9240, which are recommended for this application. The design is based on specifications from SILICONIX, and the voltage gain is achieved through two consecutive resistors in the power supply circuit. The MOSFETs require a minimum gate charge of 1K/W. The amplifier operates at an efficiency of 70%, with a total harmonic distortion of less than 0.2% at 20 Hz and 10 W into 8 ohms. With a supply voltage of approximately +30V, the amplifier can output 45 W into 8 ohms and 70 W into 4 ohms. It is important to ensure that the amplifier is short-circuit protected, particularly when the speaker is connected.

The LED-powered audio amplifier circuit described utilizes a TL071C operational amplifier, which is known for its low noise and high input impedance characteristics, making it suitable for audio applications. The use of MOSFETs IRFP240 and IRFP9240 provides efficient power amplification, allowing the circuit to achieve significant output power levels while maintaining thermal stability.

The circuit design includes a power supply section that provides the necessary voltage levels for the amplifier. The two resistors mentioned in the description serve to set the gain of the amplifier, allowing for precise control over the amplification factor. The requirement for a minimum gate charge of 1K/W ensures that the MOSFETs operate effectively within their specified parameters, promoting reliability and performance.

The efficiency rating of 70% indicates that the amplifier is capable of converting a substantial portion of the input power into usable output power, minimizing energy loss as heat. The low total harmonic distortion (THD) of less than 0.2% at 20 Hz and 10 W suggests that the amplifier can reproduce audio signals with high fidelity, making it suitable for quality audio applications.

With a supply voltage of +30V, the amplifier can deliver 45 W into an 8-ohm load and 70 W into a 4-ohm load, making it versatile for various speaker configurations. The mention of short-circuit protection is crucial for ensuring the longevity of the amplifier and connected speakers, as it prevents damage in the event of a fault condition.

Overall, this LED-powered audio amplifier circuit demonstrates a thoughtful integration of components and design principles to achieve a reliable and efficient audio amplification solution.Here is simple LED-power audio amplifier ambit with MOSFET amplifier TL071C and 2 may be up to 45 W into 8 ohms. For MOSFET IRFP240 and IRFP9240 are acclimated assurance with accessory can now be these modification.

The arrangement is at the appeal SILICONIX and the voltage change of 2 consecutive resistances from suppliers operating voltage ampli fier disciplinarian was inserted. MOSFET charge be army on at atomic one condenser 1K / W. Amplifier ability is 70%, the abridgement in the abundance baloney in added than 0. 2% at 20 Hz at 8 ohms and 10W. With a accumulation voltage in the ambit of + 30V, can accumulation audio amplifier MOSFET 45W into 8 ohms and 70W into 4 ohms. Remember that the complete amplifier is short, so all you can analysis the radio button is protected, whether the apostle is connected.