Sunday, June 25, 2017

500W Mosfet Power Amplifier 2SK176, 2SJ56

500W Mosfet Power Amplifier 2SK176, 2SJ56
A Project creates a power amplifier circuit with a power of about 500W RMS using a MOSFET transistor as the main amplifier of this power amplifier. By using 2 sets of transistor MOSFET 2SK176,2SJ56. Description of the power amplifier is already designed as the picture above.

To make this power amplifier circuit is needed also some other supporting components. More details can you see the schematic circuit below. 

Circuit Diagram
Mosfet Power Amplifier Circuit Diagram
The power amplifier circuit above is using power supply 32V CT, or you can use maximum voltage 45V CT DC Supply. Power amplifier output about 500Watt Mono if you want the Stereo amplifier you can multiply circuit and Output Power about  1000W. For easy makes this power amplifier we share PCB Layout design as below.

500W Mosfet Power Amplifier circuit

See also the video project:


  1. Which this type of amplifier?

  2. Replies
    1. Do you have schematic of Class D amplifier high power output? I need it.

  3. This comment has been removed by the author.

  4. Generally, large signal or power amplifiers are used in the output stages of audio amplifier systems to drive a loudspeaker load.

    1. Alright it most extra power to drive speaker, so you can give more suggestion?

  5. Bad circuit, with a supply of 45VDC CT you can only output less than 100W @ 8 ohms load. You miss something from copying the original circuit especially at the input and vas stage.


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