It is pointed out, while expounding the principle of chopper speed variation, that the value of peak current can affect the service life of components and so it is necessary to control.
文章阐述了斩波调速原理，指出峰值电流的大小会影响元器件的寿命，所以有必要对瞬时电流的大小进行控制。
The experimental and simulative waveforms of magnet current and DC bus current inosculate well, which indicates the validity of the proposed mathematical model of chopper and its control method.
磁体电压、磁体电流及直流母线电流仿真与实验波形吻合较好，所应用的斩波器数学模型及其控制方法能实现对超导磁体快速稳定地充、放电和续流。
A 2.5 KHZ SCR chopper, with the output current controlled continuously from 60a to 250a, and its grid-control device has been designed and built.
设计并研制出了工作频率为2.5千赫，输出电流从60到250安连续可调的可控硅斩波器及其栅控装置。
A 2.5 KHZ SCR chopper, with the output current controlled continuously from 60a to 250a, and its grid-control device has been designed and built.
设计并研制出了工作频率为2.5千赫，输出电流从60到250安连续可调的可控硅斩波器及其栅控装置。
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