学习三相无感无刷(BLDC)电机的基础驱动程序和电路.应用实例为迈拓40G硬盘的主轴电机.改变输入电压可以改变转速.如应用自动控制,可以用pwm来控制输入电压来达到速度控制.如有闭环反馈,即可实现恒速运转-Learning without a sense of three-phase brushless (BLDC) motor driver and circuit basis. Application examples for the Maxtor 40G hard disk spindle motor. To change the input voltage can change the speed. Such as the application of automatic control, you can use pwm to control the input voltage to achieve the speed control. If the closed-loop feedback, constant speed operation can be achieved ..