无刷电机驱动方案？

谁有无刷电机驱动方案？16F72的

Sensorless&nbsp;Brushless&nbsp;DC&nbsp;Motor&nbsp;Control&nbsp;with&nbsp;PIC16&nbsp;&nbsp;<br />姓名:&nbsp;&nbsp;AN1175&nbsp;&nbsp;<br />日期:&nbsp;&nbsp;3/18/08&nbsp;&nbsp;<br />作者:&nbsp;&nbsp;Joseph&nbsp;Julicher,&nbsp;Dieter&nbsp;Peter&nbsp;&nbsp;<br />说明:&nbsp;&nbsp;The&nbsp;purpose&nbsp;of&nbsp;this&nbsp;application&nbsp;note&nbsp;is&nbsp;to&nbsp;illustrate&nbsp;an&nbsp;elegant&nbsp;sensorless&nbsp;technique&nbsp;that&nbsp;can&nbsp;be&nbsp;implemented&nbsp;on&nbsp;low-cost&nbsp;microcontrollers.&nbsp;All&nbsp;demonstration&nbsp;software&nbsp;will&nbsp;operate&nbsp;within&nbsp;an&nbsp;open&nbsp;loop&nbsp;with&nbsp;no&nbsp;speed&nbsp;regulation.&nbsp;&nbsp;<br />关键字:&nbsp;&nbsp;Brushless,&nbsp;BLDC,&nbsp;Sensorless,&nbsp;DC&nbsp;Motor&nbsp;Control,&nbsp;PIC16&nbsp;&nbsp;<br /><br />下载地址：http://ww1.microchip.com/downloads/cn/AppNotes/cn534512.pdf