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Improved Modulated Carrier Controlled PFC Boost Converter Using Charge Current Sensing Method

Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, Korea
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Energies 2018, 11(4), 717; https://doi.org/10.3390/en11040717
Received: 1 March 2018 / Revised: 16 March 2018 / Accepted: 19 March 2018 / Published: 22 March 2018
(This article belongs to the Section Electrical Power and Energy System)
An improved modulated carrier control (MCC) method is proposed to offer high power factor (PF) and low total harmonic distortion (THD) at a wide input voltage range and load variation. The conventional MCC method not only requires a multiplier and divider, but also is hard to be implemented with a micro controller unit without a high frequency oscillator. To overcome the problem and maintain the advantages of the conventional MCC method, the proposed MCC method adopts a current integrator, an output voltage amplifier, a zero-current duration (ZCD) demodulator of the boost inductor, and a carrier generator. Thus, it can remove a multiplier and well, as it allows for being operable with a general micro control unit. This paper presents an operation principle of the proposed control method. To verify the proposed control method, experimental results with 400 W PFC boost converter is demonstrated. View Full-Text
Keywords: modulated carrier control; ac-dc power converters; power factor correction (PFC); power conversion modulated carrier control; ac-dc power converters; power factor correction (PFC); power conversion
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MDPI and ACS Style

Kim, J.; Won, C.-Y. Improved Modulated Carrier Controlled PFC Boost Converter Using Charge Current Sensing Method. Energies 2018, 11, 717.

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