Here the discrete on or OFF state of the modulation itself can be used to control the switches thereby controlling the voltage or current across the load.
在这里，离散的开或关的状态调制本身可以被用来控制开关，从而控制得或电流负载。
We can use SPWM to control power tube on or off, can use the double-loop control with the inductance current inner loop and capacitor voltage outer loop is introduced.
可采用SPWM控制功率管的关闭与导通，采用外环电压环，内环电流环的双环控制。
This control method can regulate the burn-off process of contact bridge according to requirements so that the required flashing voltage is lowered and the flashing heating efficiency raised.
这种控制方法可以根据要求改变触点的烧化过程，从而降低激发闪光所需的电压，提高闪光加热效率。
The main control system includes the synchronous signal generating circuit, the testing circuit of thyristor cut-off voltage and the trigger circuit of the thyristors etc.
论述了主要硬件电路的设计方案，其中包括晶闸管两端电压检测、三相电源同步信号检测等。
The main control parameters of SRD are opening angle, turn-off angle, phase current and phase winding voltage.
SRD的主要控制参数有开通角、关断角、相电流和相绕组电压。
The cut-off frequency of improved inverter output filter can be set higher to ensure the bandwidth of control system and improve the waveform quality of inverter output voltage.
改进后逆变器输出滤波器的截止频率可以取较高值，保证足够的控制系统带宽，有效提高逆变器输出电压波形质量。
In this regulator system, a DSP controls bi-directional IGBT triggered and turn-off at zero-crossing to control different combination of secondary coil and realize AC voltage stabilization.
通过DSP作为控制器，利用补偿变压器输出可以正负补偿的电压与电网串联，从而实现输出稳定的交流电压。
In this regulator system, a DSP controls bi-directional IGBT triggered and turn-off at zero-crossing to control different combination of secondary coil and realize AC voltage stabilization.
通过DSP作为控制器，利用补偿变压器输出可以正负补偿的电压与电网串联，从而实现输出稳定的交流电压。
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