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用于心的低功耗MOSFET驱动电路设计

更新时间:2020-05-16 10:15:27 大小:282K 上传用户:守着阳光1985查看TA发布的资源 标签:mosfet驱动电路 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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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0.4μmBCD工艺,采用HSPICE仿真结果表明,在%。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.

A 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 6 V and 11 V not only makes low consumption but also saves the layout area. Based on the 0.4 μm BCD process, simulation results show that the better circuit power is 7.34 mW and that the layout area can be saved by 15% when VDD is 14 V and switch freq...

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用于心的低功耗MOSFET驱动电路设计.pdf 282K

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