Boost-type power factor correction system with three-level sigma-delta modulation

机译：具有三级sigma-delta调制的Boost型功率因数校正系统

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A boost PFC system using a three-level sigma-delta modulation technique, as an alternative to PWM based methods, is presented. The operating principle is based on proportionality between the average voltage over a switching period of the boost switching node (MOSFET drain), and the average input current, so as to make the input impedance equal to a resistance in the frequency range of interest for the PFC function. The system proposed is the first that can operate under both CCM and DCM conditions maintaining a very low THD. Theoretical results are confirmed by simulations and experimental results on a laboratory prototype.

机译：提出了一种使用三级sigma-delta调制技术的升压PFC系统，以替代基于PWM的方法。工作原理基于升压开关节点（MOSFET漏极）的整个开关周期内的平均电压与平均输入电流之间的比例，从而使输入阻抗等于目标频率所关注频率范围内的电阻。 PFC功能。提出的系统是第一个可以在CCM和DCM条件下运行且保持非常低的THD的系统。理论结果通过实验室原型的仿真和实验结果得到证实。

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《Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on》|2001年|P.137-140|共4页
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Dallago; E.; Passoni; M.; Venchi; G.;
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中图分类无线电电子学、电信技术;
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4. Boost-type power factor correction system with three-level sigma-delta modulation [C] . E. Dallago, M. Passoni, G. Venchi IEEE International Conference on Electronics, Circuits and Systems . 2001

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机译：功率因数校正系统通过连续调制。总结报告

Boost-type power factor correction system with three-level sigma-delta modulation

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