Skip to content
Electronic Circuits

DIY Hobby projects, diagram, schematic

Electronic Circuits

DIY Hobby projects, diagram, schematic

MOSFET Power Amplifier

electronicecircuits, January 27, 2010August 21, 2023
MOSFET Power Amplifier

MOSFET Power Amplifier Circuit diagram

Two complementary MOSFETs are used to deliver 20W into 8Ω.

MOSFET Power Amplifier circuit diagram
PARTS LIST
R1100kΩ
R210kΩ
R3240Ω (120Ω + 120Ω)
R4330Ω
R51.3kΩ (1.2kΩ + 100Ω)
R61.3kΩ (1.2kΩ + 100Ω)
R7100Ω
R81kΩ
R9100Ω
R10100kΩ
R1122kΩ
VR11kΩ
T12N3904
T22N3904
T3IRF9520
T4IRF520
IC1TL071
LS18Ω 20W Speaker

T3

IRF9520 P Channel Power MOSFET

T4

IRF520 N Channel Power MOSFET

The MOSFETs should be heatsinked with a heatsink of better than 5°C/W capability.

TL071 LOW NOISE J-FET SINGLE OPERATIONAL AMPLIFIERS

A TL071 op amp is used as an input amplifier.

THD is less than 0.15% from 100Hz to 10kHz.

Please send your ideas, which are very important for our success…

Electronic Circuits Power Amplifier

Post navigation

Previous post
Next post

Comments (2)

  1. shravanth says:
    March 21, 2012 at 12:31 am

    does this amp is working

    Reply
  2. Nishantha says:
    November 10, 2013 at 11:28 am

    i want to 1000 pmpo watt diagram.

    Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

  • Diagrams
  • Privacy Policy
  • Software
  • Contact

Recent Posts

  • LM317 CONSTANT CURRENT CALCULATOR
  • 5V buck converter – LM2576 simple DIY project
  • ICL7107 PANEL METER
  • Precision 1Hz clock generator circuit
  • Toggle to Momentary Switch Using 555 Monostable

Categories

  • Circuit Tutorials
  • Electronic Circuits
  • Electronic Software

AC Projects Alarm Circuits Amplifier Circuits Amplifiers Antenna Circuits Battery Charger Calculator software Circuit Designer Control Circuits Converter circuits Crossover Circuits Data Sheets Digital Circuits Electronic Switch Flasher Circuits Game Circuits IC Programmer IC Programming Indicator Circuits LED Circuits Light Circuits Logic Circuits Measuring Circuits Meter Circuits Microchip Motor Circuits Music Circuits Oscillator Circuits PCB Designer PIC Power Amplifier Power Guard Power Supply PreAmplifier Circuits Radio Circuits Regulator Circuits Regulator Diagrams Regulator Schematics RF Schematics Sensor Circuits Tester Circuits Timer Circuits Transmitter Circuits Tutorials Vacuum Tube

©2025 Electronic Circuits | WordPress Theme by SuperbThemes