100W MOSFET Amplifier Circuit Diagram using 2SK134 & 2SJ49

Introduction

An amplifier circuit is an essential component in audio systems, providing the necessary power to drive speakers and produce sound. The 100W MOSFET Amplifier Circuit Diagram using 2SK134 & 2SJ49 is a powerful and efficient circuit that can deliver high-quality audio output. This circuit utilizes high-quality components such as 2SK134 & 2SJ49 in the output section, 2SD666 & 2SB646 in the driver section, and 2SA1016 in the preamplifier section. These components are carefully selected to ensure optimal performance and reliability.

Transistors Specifications:

1. 2SK134

• Type: N-channel Junction Field Effect Transistor (JFET)
• Vds (Drain-Source Voltage): -60V
• Id (Drain Current): -50mA
• Vgs (Gate-Source Voltage): +/-30V
• Pd (Power Dissipation): 0.38W
• Package: TO-92

2. 2SJ49

• Type: P-channel Junction Field Effect Transistor (JFET)
• Vds (Drain-Source Voltage): 60V
• Id (Drain Current): 50mA
• Vgs (Gate-Source Voltage): +/-30V
• Pd (Power Dissipation): 0.38W
• Package: TO-92

3. 2SD666

• Type: NPN Epitaxial Planar Silicon Transistor
• Vce (Collector-Emitter Voltage): -80V
• Ic (Collector Current): -1.5A
• Hfe (DC Current Gain): 60-240
• Pd (Power Dissipation): 80W
• Package: TO-220

4. 2SB646

• Type: PNP Epitaxial Planar Silicon Transistor
• Vce (Collector-Emitter Voltage): 100V
• Ic (Collector Current): 2A
• Hfe (DC Current Gain): 60-240
• Pd (Power Dissipation): 40W
• Package: TO-220

5. 2SA1016

• Type: PNP Silicon Epitaxial Planar Transistor
• Vce (Collector-Emitter Voltage): -120V
• Ic (Collector Current): -1A
• Hfe (DC Current Gain): 100-320
• Pd (Power Dissipation): 1.5W
• Package: TO-92

MOSFET Amplifier Circuit Diagram using 2SK134 2SJ49

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 2SK134 2SJ49

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

• 2SK134 MOSFET x 1
• 2SJ49 MOSFET x 1
• 2SD666 Transistor x 2
• 2SB646 Transistor x 1
• 2SA1016 Transistor x 2

Explanation of MOSFET Amplifier Circuit using 2SK134 2SJ49

The output section of the amplifier circuit consists of 2SK134 and 2SJ49 MOSFET transistors, which are known for their high power handling capabilities. These transistors work together to amplify the audio signal and drive the speakers with a power output of up to 100W. The driver section features 2SD666 and 2SB646 transistors, which are responsible for amplifying the signal from the preamplifier section and delivering it to the output transistors. Lastly, the preamplifier section utilizes the 2SA1016 transistor to amplify the input audio signal before passing it on to the driver section.

Conclusion

Overall, this MOSFET amplifier circuit utilizing 2SK134 2SJ49 is designed to deliver clean and powerful audio output, making it ideal for use in home audio systems, car audio systems, and other audio applications where high-power amplification is required.

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