基于精密整流电路的无桥PFC的研究
作者:张军达 王慧贞 上传时间:2008-4-16 11:44:58
摘要:本文研究了无桥Boost PFC电路,由于省略了整流桥,效率比传统的Boost PFC高,但是由于其电感的特殊位置,给电感电流信号检测带来了困难,本文提出了一种基于精密整流电路的新型电流检测,并研制了一台300W的原理样机,通过实验验证理论分析的正确性。
叙词:功率因数校正;双Boost PFC;精密整流电路
Abstract:paper focuses on Dual Boost PFC(DBPFC), it shows higher efficiency compared with traditional Boost PFC, but it is not very easy for current sensing because of the inductors location.A new current sensing is proposed in thi paper to solve this problem.Finally a 300W prototype is designed.Experimental results verify the correctness of the theoretical analysis.
Keyword:power factor correction;Dual Boost PFC(DBPFC);exact rectifying
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