单级PFC恒流驱动及蓝牙调光技术的研究

LED 智能照明系统逐渐应用到室内照明,具有智能控制、高效节能、绿色的特点。国内 LED 智能照明系统仍不完善,存在不易控制、能源浪费、功率因数低、谐波干扰大等问题,使得 LED 照明的优势没有很好的体现出来,并阻碍其推广。对智能调光控制技术进行研究,设计单级 PFC 反激式恒流驱动电路和蓝牙调光方案,Android 智能手机作为客户端以蓝牙无线技术传输调光控制信号,对 LED 恒流驱动电路进行开关、调光控制实现智能照明,具有便捷可靠、电源转换效率和功率因数高、电流总谐波低的性能。

Research on single stage PFC constant current drive and bluetooth dimming technology

LED intelligent lighting system was gradually applied to indoor lighting, have the characteristics of intelligent control, high efficiency and energy saving. Domestic LED intelligent lighting system has some problems,such as hard to control, energy waste, low power factor and harmonic interference, which make the advantage of LED lighting is not performance, also impact its promotion. In this paper, intelligent dimming control technology is analyzed. Single stage PFC flyback type constant current drive circuit and Bluetooth, Wifi dimming solution were designed. The dimming driver circuit has high reliability, high power efficiency and power factor, as well as low harmonic wave distortion of the input current.