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中文摘要：
针对传统发光二极管（LED）照明驱动电源普遍使用电解电容作为储能元件导致驱动电源整体寿命短、体积大的缺点,给出一种基于改进型双Buck-Boost变换器的无电解电容LED照明驱动电源。分析了驱动电源的工作原理与功率解耦电容的电压纹波,制作了70 W实验样机验证了其可行性。
英文摘要：
Considering that traditional lighting emitting diode（LED） lighting drive power supply generally employs an electrolytic capacitor as the storage components,which causes its short lifespan and bulky,a LED lighting driver without electrolytic capacitor based on modified double Buck-Boost converter is proposed.The working principle,voltage ripple of power decoupling capacitor is analyzed.The 70 W experimental prototype is built and experimental results verify the feasibility of the proposed method.
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