摘要
利用DSP的PWM输出功能,在增加少量外围电路的基础上,可得到两相旋转变压器励磁信号,从而简化对变压器二次侧输出信号的处理。试验表明采取适当的A/D定标方式,可达到很高的转换精度和转换速度。
By use of PWM output function of digital signal processor (DSP), the two-phase field excitation signals of resolver-to- digital converter transformer could be obtained with fewer peripheral circuits, so that the processing of output signals from the secondary side of the transformer is simplified. The test indicates that with proper scaling method for A/D conversion, high conversion accuracy and speed could be achieved.
出处
《机车电传动》
北大核心
2004年第5期31-33,共3页
Electric Drive for Locomotives
