An FPGA-based Fully Digital Controller for Boost PFC Converter

Li Lai; Ping Luo

An FPGA-based Fully Digital Controller for Boost PFC Converter

Li Lai

Ping Luo

Vol. 15, No. 3, pp. 644-651, May 2015

10.6113/JPE.2015.15.3.644

Continuous Current Mode

Digital control

Power factor correction

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Abstract

This paper introduces a novel digital one cycle control (DOCC) boost power factor correction (PFC) converter. The proposed PFC converter realizes the FPGA-based DOCC control approach for single-phase PFC rectifiers without input voltage sensing or a complicated two-loop compensation design. It can also achieve a high power factor and the operation of low harmonic input current ingredients over universal loads in continuous conduction mode. The trailing triangle modulation adopted in this approach makes the acquisition of the average input current an easy process. The controller implementation is based on a boost topology power circuit with low speed, low-resolution A/D converters, and economical FPGA development board. Experimental results demonstrate that the proposed PFC rectifier can obtain a PF value of up to 0.999 and a minimum THD of at least 1.9% using a 120W prototype.

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Cite this article

[IEEE Style]

L. Lai and P. Luo, "An FPGA-based Fully Digital Controller for Boost PFC Converter," Journal of Power Electronics, vol. 15, no. 3, pp. 644-651, 2015. DOI: 10.6113/JPE.2015.15.3.644.

[ACM Style]

Li Lai and Ping Luo. 2015. An FPGA-based Fully Digital Controller for Boost PFC Converter. Journal of Power Electronics, 15, 3, (2015), 644-651. DOI: 10.6113/JPE.2015.15.3.644.