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用于LED照明的非开关电源驱动电路的分析
资料介绍
在用于LED照明的各种电源驱动中，阻容驱动和线性恒流驱动是两种常见低成本非开关电源驱动方式。用这两种电源驱动的LED灯在交流电压波动时可能出现闪烁或电工效率降低的现象。分别论述了这两类驱动电路的工作原理，分析了上述问题产生的原因。为解决这些问题。提出一种开关斩波和线性恒流驱动组合的改进电路方案。所有分析结果都通过实验的验证。
Among the various power supply for LED lighting drive and linear constant current drive are the two common low-cost power supply of non-switching. LED lights driven by one of the two drivers may blink or possess low efficiency of electric power during AC voltage fluctuations. The operation principle of the two drivers was described, and the source of the above issues was analyzed. In order to solve the problems, an improved scheme of linear constant current driver combined with a chopper was proposed. The validity of the analyses was confirmed through experiments.
部分文件列表
| 文件名 | 大小 |
| 用于LED照明的非开关电源驱动电路的分析.pdf | 703K |
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