Main motor frequency modulation control.
主电动机调频控制。
The part of driving includes constant current control, constant power control and pulse modulation control.
驱动部分又包括恒电流控制，恒功率控制和脉冲调制控制三个方面。
Further, the operation of the variable speed drive is combined with a pulse width modulation control of different system components.
此外，可变速驱动器的操作与不同系统部件的脉宽调制控制相结合。
In the air compressor demand is not high, the general use of the modulation control, that is, through the control of air inhaled compressor is to ensure that the system need air pressure.
在对空压机要求不高的情况下，一般采用调制式控制，即通过控制压缩机吸入空气的量来保证系统所需要的空气压力。
In the air compressor demand is not high, the general use of the modulation control, that is, through the control of air inhaled compressor is to ensure that the system need air pressure.
在对空压机要求不高的情况下，一般采用调制式控制，即通过控制压缩机吸入空气的量来保证系统所需要的空气压力。
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