J4 ›› 2010, Vol. 37 ›› Issue (4): 608-612.doi: 10.3969/j.issn.1001-2400.2010.04.005

• Original Articles • Previous Articles     Next Articles

Double-loop control one cycle PFC converter high-level model and its circuit realization

LI Ya-ni;YANG Yin-tang;ZHU Zhang-ming   

  1. (Ministry of Education Key Lab. of Wide Band-Gap Semiconductor Materials and Devices, Xidian Univ., Xi'an  710071, China)
  • Received:2009-12-05 Online:2010-08-20 Published:2010-10-11
  • Contact: LI Ya-ni E-mail:yanili@mail.xidian.edu.cn

Abstract:

To simplify the design process and increase power efficiency, using Simulink's topology and linearization method, a high-level model of the one-cycle boundary controlled power factor correction (PFC) boost converter is described based on the double-loop dynamic transfer control function. The voltage loop provides low frequency stability for low total harmonic distortion(THD), and the current loop improves high frequency dynamic characteristic. According to this system model, the transistor level PFC converter is realized and verified using the Sinomos 1.0μm 40V CMOS process. Measured results show that the power factor correction is 0.988, that THD is 3.8%, and that the stable operating current is 2.43mA at the simulation of VDD=15V, VINV=2V, and VZCD=2V. The double-loop control system would achieve the one cycle control mode efficiently, and improve the system stability and dynamic response speed, which displays the high-performance characteristics of the power management chips.

Key words: double-loop control, power factor correction, one cycle, boundary mode, high-level model