论文部分内容阅读
利用芯片CL1502作为反馈控制芯片设计了一款高效的14WLED恒流驱动电源。详细介绍了该电源电路中每一元件的计算及选择。结合CL1502说明书及电感电流临界模式的特点,详细给出了该电源方案中的核心元件—电感的设计步骤。应用该方案设计的电源效率可达91%,电流的输出精度可达±3%,整机成本不到1.3元,具有极高的性价比。
The use of chip CL1502 as a feedback control chip designed an efficient 14WLED constant current drive power. Detailed description of the power circuit in the calculation and selection of each component. According to the specification of CL1502 and the critical mode of inductor current, the design procedure of the inductor, the core component of the power supply scheme, is given in detail. Application of the program design of the power efficiency of up to 91%, the current output accuracy up to ± 3%, the whole cost of less than 1.3 yuan, with a very high price.