Control of multiple single phase PFC modules with a single low-cost DSP
Control of multiple single phase PFC modules with a single low-cost DSP
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使用单个低成本 DSP 控制多个单相 PFC 模块
DOI：
10.1109/tia.2003.816561
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
P. Enjeti
中科院分区：
文献类型：
--
作者：
Sangsun Kim;P. Enjeti
本文提出了一种新的控制方案，用一个低成本的数字信号处理器（DSP）控制多个单相功率因数校正（PFC）模块。该方案允许不同额定电流的多个PFC模块并联运行，并通过单个DSP进行控制。基于DSP的控制处理简单的电流共享，并提供尺寸减小。本文介绍了一种电流检测技术，每个PFC模块和一个闭环控制算法的输出电压和输入电流控制操作多个模块。在示例设计中，开关频率设置为120 kHz，两个连续导通模式（CCM）PFC级并联运行，并通过单个TMS320LF2407 DSP进行控制。实验结果表明，所提出的方案是能够用于现代开关电源。
In this paper, a new control scheme is proposed for controlling multiple single-phase power factor correction (PFC) modules with a single low-cost digital signal processor (DSP). The proposed scheme allows for multiple PFC modules of different current ratings to be operated in parallel and controlled via a single DSP. The DSP based control handles simple current sharing and provides size reduction. The paper describes a current sense technique for each PFC module and a closed loop control algorithm for the output voltage and input current control for operating multiple modules. In the example design, the switching frequency was set at 120 kHz and two continuous conduction mode (CCM) PFC stages were operated in parallel and controlled via a single TMS320LF2407 DSP. Experimental results show that the proposed scheme is capable to be used for modern switching power supplies.