60W MOSFET Amplifier Circuit Diagram using IRFP240 & IRFP9240

Introduction

The 60W MOSFET Amplifier Circuit Diagram using IRFP240 & IRFP9240 in the output section, MJE350, MJE340 & BC546 transistors in the driver section, and MPSA43 transistors in the preamplifier section is a highly efficient and reliable amplifier design. This circuit is capable of delivering a powerful 60W output with exceptional audio quality. The choice of high-quality transistors ensures optimal performance and reliability.

Specification of Transistors:

IRFP240: The IRFP240 is a power MOSFET transistor with a maximum voltage rating of 200V and a continuous drain current of 18A. It has a low on-resistance and high switching speed, making it suitable for high-power applications.

IRFP9240: The IRFP9240 is a complementary power MOSFET to the IRFP240. It has a maximum voltage rating of 200V and a continuous drain current of 12A. It exhibits low on-resistance and excellent thermal characteristics, making it an ideal choice for the output section of the amplifier.

MJE340: The MJE340 is a high-voltage NPN transistor with a maximum voltage rating of 300V and a continuous collector current of 0.5A. It has low noise and high gain characteristics, making it suitable for driver applications.

MJE350: The MJE350 is a complementary PNP transistor to the MJE340. It has a maximum voltage rating of 300V and a continuous collector current of 0.5A. The MJE350 offers low saturation voltage and high current gain, ensuring efficient performance in driver circuits.

MPSA43: The MPSA43 is a general-purpose NPN transistor with a maximum voltage rating of 200V and a continuous collector current of 0.5A. It has low noise and high voltage gain, making it suitable for preamplifier applications.

MOSFET Amplifier Circuit Diagram using IRFP240 IRFP9240

This project can be built using a few basic components. The circuit diagram of this project is shown below.

Caution: Website contains information on high voltage circuits. Proceed at your own risk, ensuring proper knowledge and precautionary measures to prevent electric shock or injury.

More Circuit Layouts

Components List of MOSFET Amplifier Circuit using IRFP240 IRFP9240

Following is the list of all components used in this project:

Transistors:

• IRFP240 N-Channel Hexfet Transistor x 1
• IRFP9240 P-Channel Hexfet Transistor x 1
• MJE340 NPN Transistor x 1
• MJE350 PNP Transistor x 1
• MPSA43 NPN Transistors x 3
• BC546 NPN Transistors x 2

Resisters:

• 47K Resistor x 2
• 22K Resistor x 1
• 1K Resistor x 1
• 330Ω Resistors x 3
• 1.5K Resistor x 1
• 15K Resistor x 1
• 33K Resistor x 1
• 150K Resistor x 1
• 39Ω Resistor x 1
• 0.33Ω/2.5W Resistors x 2
• 10Ω/2.5W Resistor x 1
• 0.22Ω/5W Resistor x 1
• 500Ω Trimmer x 1

Capacitors:

• 470nF Capacitor x 1
• 470pF Capacitor x 1
• 47µF Capacitor x 1
• 100nF Capacitors x 4
• 10pF Capacitor x 1
• 1µF Capacitor x 1
• 100µF Capacitors x 2

Miscellaneous:

• 1N4002 Diode x 1
• LED Red 5mm x 1
• ±40V Power Supply

Explanation of MOSFET Amplifier Circuit using IRFP240 IRFP9240

The 60W MOSFET Amplifier Circuit Diagram using IRFP240 & IRFP9240 in the output section, MJE350, MJE340 & BC546 transistors in the driver section, and MPSA43 transistors in the preamplifier section is an exceptional amplifier design. It offers a powerful 60W output with outstanding audio quality. The careful selection of high-quality transistors ensures efficient performance and reliability. Whether for professional audio systems or home stereo applications, this amplifier circuit diagram can deliver impressive results. With its robust design and optimal component specifications, it is a reliable choice for amplification needs.

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