In the previous article, we discussed the application scheme of MOSFETs in the 1800W dual-channel amplifier. In this article, we will continue to elaborate on the application of stage audio amplifiers. Besides the 1800W audio amplifier, which is commonly used for stage performances, 3000W stage audio amplifiers are also frequently used in large conference rooms, multi-functional halls, KTVs in clubs, home theaters, and other places.

For 3000W stage audio amplifiers, especially dual-channel ones, engineers from Feihong Semiconductor suggest using 8 FHK94N50A to replace the IXFK94N50P2 model field-effect transistors with similar parameters.

In addition, 16 TO-247-2L packaged FHA60F60CA field-effect transistors are required for the circuit to ensure stable product performance and better fidelity!

Why choose FHK94N50A to replace the IXFK94N50P2 field-effect transistor? Besides the reasons mentioned earlier, this model is one that has been widely used in 3000W stage audio amplifiers. In the development of semiconductor products made in China, its 500V voltage and 94A current parameters are also more suitable for use in 3000W stage audio amplifiers.

Let's review the specific product parameters:

It has a current of 94A and a voltage of 500V, RDS(on) = 65mΩ(MAX) @VGS = 10V, RDS(on) = 47mΩ(TYP) @VGS = 10V, and the maximum gate-source voltage @VGS = ±30V.

FHK94N50A is an N-channel enhancement VDMOS-with frd, and the TO-264 package size is suitable for the circuit.

The specific parameter values of this product are: Vgs(±V): 30; VGS(th): 3.0-5.0V; ID(A): 94A; BVdss(V): 500V.

Maximum pulse drain current (IDM): 376A, reverse transfer capacitance: 58pF.

The entertainment industry in 2024 will certainly continue to grow following the trend of 2023. How can product performance be upgraded at the R&D end? It is recommended to understand the native model from Feihong: FHK94N50A parameters to replace the IXFK94N50P2 model for application.

Replacing the MOSFET with 94A and 500V, choosing the right model parameters will enhance the product power of enterprises. Feihong has obtained 15 utility patents and inventions and cooperates with Sun Yat-sen University and the Chinese Academy of Sciences to research and develop GaN devices. Feihong's products have been widely applied in stage audio amplifiers and class D professional audio power amplifiers, mainly for 1800W dual-channel models and 3000W dual-channel models, helping partners solve domestic high-quality products that meet national conditions and international quality standards. In addition to providing free samples, custom MOSFET products can also be provided according to customer needs. Simply enter "Feihong Semiconductor" in Baidu to find us, free sample hotline: 400-831-6077.