A Family of Predictive Digital-Controlled PFC Under Boundary Current Mode Control

作者：Lai Yen Shin^*; Yeh Chia An; Ho Kung Min

来源：IEEE Transactions on Industrial Informatics, 2012, 8(3): 448-458.

DOI：10.1109/TII.2012.2189013

• Boundary current mode control
• digital control
• power factor correction

One of the advantages of power factor corrector with boundary current mode control is the reduction of reversal recovery loss of diode. This paper proposes a family of predictive methods adapted to digital pulse-width modulations for digital-controlled PFC operated under boundary current mode. The DPWM methods include leading-edge modulation, trailing-edge modulation and triangular modulation. For the proposed control method, the switching period retaining zero current switching is predicted and the turn-on period is determined by the voltage controller. Therefore, neither zero-current detection nor high-frequency A/D converter for current sampling is required for the proposed control method.
Experimental results derived from a DSP-based controller are presented for confirmation. The power factor corrector is with 250 W power rating, 100 V/AC/50 Hz input, and 385 V/DC output. Experimental results demonstrate the effectiveness of the proposed predictive digital-controlled PFC under boundary current mode control.

• 出版日期2012-8