性无码一区二区三区在线观看,少妇被爽到高潮在线观看,午夜精品一区二区三区,无码中文字幕人妻在线一区二区三区,无码精品国产一区二区三区免费

  • 回復(fù)
  • 收藏
  • 點(diǎn)贊
  • 分享
  • 發(fā)新帖

各位大師,誰能幫我做一個256點(diǎn)的正弦波SPWM(半波)

近來生意奇差,閑來無事研究一下并網(wǎng)逆變器,想用256倍頻通過鎖相環(huán)跟市電50HZ或60HZ同步,通過中斷讀取SPWM正弦表達(dá)到并網(wǎng)目的,這就需要一個256點(diǎn)的SPWM數(shù)據(jù),請大師們不吝賜教。SPWM通過功率級濾波后肯定會滯后于市電,那么SPWM超前多少個點(diǎn)合適呢?

全部回復(fù)(3)
正序查看
倒序查看
zwttt
LV.6
2
2012-07-06 12:05
call me 13907076507
0
回復(fù)
2012-07-06 16:31
3,9,15,21,27,33,39,45,51,57,63,68,74,80,86,91,97,102,108,113,118,124,129,134,139,144,
149,153,158,163,167,171,176,180,184,188,192,195,199,202,206,209,212,215,218,221,223,226,228,230,232,234,236,237,239,240,241,242,243,244,245,245,245,245
0
回復(fù)
ceh168
LV.5
4
2012-07-07 21:23
@xzszrs
3,9,15,21,27,33,39,45,51,57,63,68,74,80,86,91,97,102,108,113,118,124,129,134,139,144,149,153,158,163,167,171,176,180,184,188,192,195,199,202,206,209,212,215,218,221,223,226,228,230,232,234,236,237,239,240,241,242,243,244,245,245,245,245

謝謝XZSZRS大師

0
回復(fù)
發(fā)