J4 ›› 2011, Vol. 38 ›› Issue (1): 54-58+65.doi: 10.3969/j.issn.1001-2400.2011.01.009

• 研究论文 • 上一篇    下一篇

用于APFC的低功耗MOSFET驱动电路设计

史凌峰1,2;王庆斌1,2;许文丹1,2;苗紫晖3   

  1. (1. 西安电子科技大学 超高速电路设计与电磁兼容教育部重点实验室,陕西 西安   710071;
    2. 西安电子科技大学 电路设计研究所,陕西 西安   710071;
    3. 上海卫星工程研究所,上海  200240)
  • 收稿日期:2010-03-24 出版日期:2011-02-20 发布日期:2011-04-08
  • 通讯作者: 史凌峰
  • 作者简介:史凌峰(1970-),男,博士,副教授,E-mail: lfshi@mail.xidian.edu.cn.
  • 基金资助:

    国家自然科学基金资助项目(60876023);超高速电路设计与电磁兼容教育部重点实验室资助项目

Design of the low-power MOSFET driver circuit for APFC

SHI Lingfeng1,2;WANG Qingbin1,2;XU Wendan1,2;MIAO Zihui3   

  1. (1. Ministry of Education Key Lab. of High-Speed Circuit Design and EMC, Xidian Univ., Xi'an  710071, China;
    2. Research Inst. of Circuit Design, Xidian Univ., Xi'an  710071, China;
    3. Shanghai Institute of Satellite Engineering, Shanghai  200240, China)
  • Received:2010-03-24 Online:2011-02-20 Published:2011-04-08
  • Contact: SHI Lingfeng

摘要:

设计了一款用于驱动有源功率因数校正外部功率MOSFET的驱动电路.该电路包括电平移位和图腾柱输出级两个部分.电平移位采用电流镜结构,通过控制偏置电流降低电路功耗.图腾柱输出级通过加入死区时间降低功耗,并将高压P管的栅电压箝位在6V和11V之间,不仅能够降低功耗,也节省了版图面积.基于0.4μm BCD工艺,采用HSPICE仿真结果表明,在VDD为14V,开关频率为75kHz时,整体电路的功耗约为7.34mW,并节约了15%的版图面积.

关键词: 有源功率因数校正, 低功耗, 电平移位, 功率MOSFET

Abstract:

AA drive circuit for driving an external power MOSFET is designed for active power factor correction (APFC), which consists of a level-shift circuit and a single totem-pole output stage. The level-shift circuit adopts the current mirror structure so that it can reduce the power dissipation by adjusting the bias current. The dead time in the single totem-pole output stage can also decrease the power dissipation. Clamping the control signal VGS for the high voltage PMOS between 6V and 11V not only makes low consumption but also saves the layout area. Based on the 0.4μm BCD process, simulation results show  that the better circuit power is 7.34mW and that the layout area can be saved by 15% when VDD is 14V and switch frequency is 75kHz.

Key words: active power factor correction, low-power, level-shift, power MOSFET

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