High-power lighting LED packaging technology

From the perspective of practical application, high-power LED devices with simple installation and relatively small volume will certainly replace traditional low-power LED devices in most lighting applications. In order to meet the needs of lighting, lighting

A design scheme of MP3 player based on DAB receiver

Abstract: This paper presents a design scheme of MP3 player based on portable DAB (Digital Audio Broadcasting) receiver, and introduces the software and hardware design ideas of the system. The system adopts ARM7 single-chip microcomputer as the system controller, uses SD card to store MP