USB speakers, general version and HI-FI level circuit schematic introduction

1. Normal version, output power 2x1W, 8 ohm load, no external power supply, with DC volume adjustment potentiometer and power switch, work indicator LED, high-end LM4866MT as power amplifier.


USB speakers, general version and HI-FI level circuit schematic introduction




2. HI-FI level USB AUDIO PCB, using high-quality USB AUDIO DAC chip, using two OPA604 to build LPF, pushing LM4766 to output 2x40W power. The three parts of the power supply are filtered by independent AC-DC rectification.

USB speakers, general version and HI-FI level circuit schematic introduction




LED Street Light Series

Multiple Beam Angles street lights,LED Street light,Led White Light Street lamp

Kindwin Technology (H.K.) Limited , https://www.ktlleds.com