The part of driving includes constantcurrent 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。
2
It is made clear through the theoretical analysis that the frequency shift is dependent on the modulation frequency, thermal time constant, bias current of the laser diode and so on.
理论分析表明频移幅度与调制频率、时间常数和半导体激光器的偏置电流等物理量有关。
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.