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Power Amplifier with LM3886

This audio power amplifier is based on the LM3886 integrated circuit, capable of delivering high-quality audio output with low distortion. It is suitable for driving medium to high-power speakers in home or studio applications.

Power Supply

The amplifier requires a 30V DC power supply for proper operation. A well-regulated and filtered supply ensures stable performance and minimal hum or noise.

Construction Notes

  • Mount the LM3886 IC on a proper heatsink to dissipate heat during operation.
  • Use short and well-routed input and feedback wiring to minimize noise and oscillations.
  • Include quality electrolytic capacitors in the power supply for adequate filtering.
  • Observe correct polarity for both the power supply and speaker connections.

Key Features

  • High-fidelity audio output with low distortion
  • Capable of delivering substantial power to speakers
  • Requires a 30V DC power supply
  • Simple and reliable design using the LM3886 IC
  • Heatsinking required for thermal stability

100W audo Power Amplifiers with LM3886

PCB TOP

P.A 100w TOP PCB

PCB BOTTOM

P.A 100w BOTTOM PCB