With the help of the sweeping velocity of magnetizing current controlled by a flux feedback loop a nearly constant induced voltage is produced.
借助磁通反馈环节控制磁化电流扫描速度，使得产生的感应电压接近常数。
2
DC constantcurrent power supply circuit based on current closed-loop feedback control is brought (forward) in this paper and how to design the circuit is also emphatically introduced.
开发了一种基于电流闭环反馈控制的数控直流恒流源，介绍了该电路的设计思路。
3
Three soft start-up technique for voltage loop are compared with each other, which are the reference of DC bus voltage gradually increasing, constant charging current and different PI modulation.