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。
The SA4828 used as SPWM signal generator controls the IPM via driver circuits to produce variable frequency power supply.
提出了一种组合式三相变压变频电源的工作原理和电路结构。
This article describes the operation principle and circuit scheme of a sort of three-phase combined variable voltage and variable frequency power supply.
提出了一种组合式三相变压变频电源的工作原理和电路结构。
This article describes the operation principle and circuit scheme of a sort of three-phase combined variable voltage and variable frequency power supply.
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