discrete pulses meaning in English
不连续脉冲
Examples
- The simulation results are all in accordance with the theory analysis , some even better than the theoretical specification . the basic principle of discrete pulse frequency modulation on step - up dc / dc converter is testified , and this effort accumulates more experience to design
在完成电路原理分析与电路设计的基础之上,应用eda软件hspice对各个子电路模块和整体电路进行了功能仿真及量化模拟,仿真结果均达到或优于预定指标。 - The temperature range is - 30 ~ 80 . the topology of the step - up dc / dc converters and its basic principle is first analyzed in this thesis . then based on the conventional pfm control scheme , a discrete pulse frequency modulation is presented and the state space average model related to the ccm ( continue current mode ) and dcm is established
然后在传统的脉冲频率调制方式的基础上,分析了一种离散脉冲频率调制方式,并建立了这种调制方式下升压型dc / dc变换器在电流连续( ccm )工作模式和电流断续( dcm )工作模式的状态空间平均模型。 - High - frequency link power converters are receiving increasing attention . when the input frequency of ac - ac converter is quite high , such as 20khz or above , in order to make sure the converter switching action is restricted to the zero crossing point of the link voltage , the switching cycle becomes discrete pulse spectrums , however , the conventional pwm converters are ruled out because they would fail either to the efficiency or the low - distortion criteria
当交-交变频器的输入频率非常高，通常为20khz时，为了在零电压条件下实现逆变器开关管的通断，变换器的开关时刻必须选择在高频交流电压脉冲为零时，这意味着变换器开关时刻在时间轴上成为不连续的点，而常规的硬开关pwm变换器是将开关时刻选择在任意时刻。 - A circuit topology of the inverter with duty cycle extended active clamp forward style high frequency pulse dc link is adopted by each independent inverter . each inverter is cascaded by a circuit with duty cycle extended active clamp forward style high frequency pulse dc link and a dc / ac inverting bridge . the control strategy of voltage mode pwm forwardback is adopted by the former , and the control strategy of three - state discrete pulse modulation ( dpm ) hystersis current is adopted by the later
每个独立的航空静止变流器采用占空比扩展有源箝位正激式高频脉冲直流环节电路拓扑，由占空比扩展有源箝位正激式高频脉冲直流环节电路与dc ac逆变桥级联而成，前级采用电压型pwm前馈控制技术，后级采用三态dpm电流滞环控制技术。