MOSFET Power Amplifier

MOSFET Power Amplifier


MOSFET Power Amplifier Circuit diagrams

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

MOSFET Power Amplifier circuit diagram

PARTS LIST
R1 100kΩ
R2 10kΩ
R3 240Ω (120Ω + 120Ω)
R4 330Ω
R5 1.3kΩ (1.2kΩ + 100Ω)
R6 1.3kΩ (1.2kΩ + 100Ω)
R7 100Ω
R8 1kΩ
R9 100Ω
R10 100kΩ
R11 22kΩ
VR1 1kΩ
T1 2N3904
T2 2N3904
T3 IRF9520
T4 IRF520
IC1 TL071
LS1 8Ω 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…

(1.2kΩ + 100Ω)
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Ravindra, Hi...


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2 comments on “MOSFET Power Amplifier
  1. Nishantha says:

    i want to 1000 pmpo watt diagram.

  2. shravanth says:

    does this amp is working

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