摘要
在基于DSP控制的PFC技术中,由于开关管的频率受到DSP运算速度的限制,不能做的很高.因此,本文提出了一种基于FPGA的功率因数校正方法,它不需要在每个开关周期内都计算一次功率器件的占空比,能够实现较高的开关频率和控制精度.
The switch can't operate at a very high frequency in the power factor correction based on DSP because the switching frequency is limited by the processing speed of DSP. So this paper present a method for power factor correction based on FPGA. By using FPGA, it doesn't need to calculate the duty cycle during every switching cycle but maintaining a very high frequency and good accuracy,
出处
《仪器仪表用户》
2005年第6期40-41,共2页
Instrumentation
关键词
功率因数校正
并行运算
数字控制
power factor correction
concurrent operation
digital control