So we design new type high frequencyimpulse LED driving circuit using high-efficiency current-limiting technique, which increase the efficiency of LED driving circuit obviously.
因此设计新型高频脉冲led驱动电路，采用高效率的限流措施，显著提高LED驱动电路的效率。
2
The interpolation precision is correlated with Max feed rate pulse equivalent of CNC cyc of interpolation and output impulsefrequency of pulse generator.
其插补精度与最大进给速度、机床系统的脉冲当量、插补周期，以及脉冲发生器的输出脉冲频率有关。
3
Auditory fusion frequency (AFF) of impulse sound and paired pitch in 80 workers exposed to noise and 60 non exposed ones were measured to study the relationship between AFF and auditory fatigue.