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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？

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zwttt
LV.6
2
2012-07-06 12:05
call me 13907076507
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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
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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

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