它还包括霍尔元件输入、整流控制定序器、固定停机时间脉冲宽度调制(PWM)电流控制以及锁定转子保护。
It also includes, Hall element inputs, a sequencer for commutation control, fixed off time pulse width modulation (PWM) current control and locked rotor protection.
举例来说，如果你有，一个鼠标而且调制解调器安装，下列的指令举例说明这些元件和真实的装置文件之间的可能的联结。
For example, if you have a mouse and modem installed, the following commands illustrate possible links between these components and the actual device files.
用继电器即可；但如果需要调速，可以使用三极管，场效应管等开关元件实现PWM（脉冲宽度调制）调速。
With the relay can be; but if you need to speed, you can use the transistor, FET and other switching elements to achieve PWM (pulse width modulation) speed.
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