基于集成芯片的低压大功率可控硅调光型节能灯的解决方案

基于英飞凌公司ICB1FL02G的智能集成芯片控制设计,利用串联于电源输入端的前/后沿可控硅调光器来实现灯光明暗度的调节。将调光电信号通过压控振荡器线性地转换为半桥驱动频率,并用该频率直接控制灯的亮度。采用有源功率校正增大负载功率范围,以灯电流闭环反馈和深度调光滞环控制来保证灯光输出的可控性和稳定性。

Solution for triac dimmable CFL with low-Voltage and high-power based on IC

The solution of dimmable compact fluorescent lamp(CFL) is based on Infineon ICB1FL02G smart IC,and achieves the dimmable lamp light output by the leading or trailing edge Triac dimmer in series with mains input line directly.The voltage controlled oscillator(VCO) to realize the linearly converted from dimming signal to the half-bridge driving frequency,and uses the frequency to directly control light brightness.The active power factor correction(APFC) to expand the load power range,and uses the lamp current...