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Concurrent and simple digital controller of an AC/DC converter with power factor correction based on an FPGA

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5 Author(s)
de Castro, A. ; Div. de Ingenieria Electron., Univ. Politecnica de Madrid, Spain ; Zumel, P. ; Garcia, O. ; Riesgo, T.
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Nowadays, most digital controls for power converters are based on DSPs. This paper presents a field programmable gate array (FPGA) based digital control for a power factor correction (PFC) flyback AC/DC converter. The main difference from DSP-based solutions is that FPGAs allow concurrent operation (simultaneous execution of all control procedures), enabling high performance and novel control methods. The control algorithm has been developed using a hardware description language (VHDL), which provides great flexibility and technology independence. The controller has been designed as simple as possible while maintaining good accuracy and dynamic response. Simulations and experimental results show the feasibility of the method, opening interesting possibilities in power converters control.

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Power Electronics, IEEE Transactions on  (Volume:18 ,  Issue: 1 )