In order to meet the needs of variable pulse width, frequency and power for laser fuze, a model of the LD driver circuit is built up based on its principle.

为了满足引信用脉冲式半导体激光器驱动电路的脉冲宽度可调、频率可调、功率可调的需要，根据LD驱动电路的工作原理，建立LD驱动电路的一般模型，并进行了仿真分析。

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The SA4828 used as SPWM signal generator controls the IPM via driver circuits to produce variable frequency power supply.

它以SA 4828作为SPWM信号发生器，经过驱动电路控制IPM模块，产生三相变频电源。

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Finally, through on-line debugging, the author realized the PMSM servo driver with functions of variable frequency speed regulation, parameter identification and parameters displaying.

最后，作者通过在线软、硬件调试，实现了具有变频调速、参数识别和参数显示等功能的永磁同步电机伺服驱动器的研制。

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