_iq K1=_IQ(0.998); //Offset filter coefficient K1: 0.05/(T+0.05);
_iq K2=_IQ(0.001999); //Offset filter coefficient K2: T/(T+0.05);
#ifdef DSP2833x_DEVICE_H
clarke1.As=((AdcMirror.ADCRESULT1)*0.00024414-offsetA)*2*0.909; // Phase A curr.
clarke1.Bs=((AdcMirror.ADCRESULT2)*0.00024414-offsetB)*2*0.909; // Phase B curr.
#endif // ((ADCmeas(q12)/2^12)-offset)*2*(3.0/3.3)
if (IsrTicker>=5000)
{
#ifdef DSP2833x_DEVICE_H
offsetA= K1*offsetA + K2*(AdcMirror.ADCRESULT1)*0.00024414; //Phase A offset
offsetB= K1*offsetB + K2*(AdcMirror.ADCRESULT2)*0.00024414; //Phase B offset
offsetC= K1*offsetC + K2*(AdcMirror.ADCRESULT3)*0.00024414; ; //Phase C offset
#endif
}
请教这段程序怎么解啊,(3.0/3.3)是什么意思