The principle, main design point and no load voltage ratio calculation method of resin insulation dry-type grounding transformer are introduced.
介绍了树脂绝缘干式接地变压器的工作原理、设计要点及空载电压比的计算方法。
By using the time variant modulation ratio method, the harmonics can be eliminated and a sinusoidal and balanced output voltage or input current is obtained.
通过采用时变调制比的方法，可以消除不对称输入电压的影响，从而获得对称正弦输出电压或输入电流。
Based on the analysis of the process of regenerative braking, this paper put forward a new method to restrain the pumping voltage by changing PWM ratio.
文中通过对再生制动过程的分析，提出了通过控制占空比的办法来抑制泵升电压。
The output voltage waveforms of matrix converter which is based on the space vector modulation are analysed under the unbalanced input voltage. A time-variant modulation ratio method is proposed.
在非对称输入电压情况下，对基于双空间矢量调制的矩阵变换器的输出电压波形进行了分析，提出了利用时变调制比改善输出电压波形的方法。
The Finite Difference Time Domain(FDTD) method was used to calculate the Voltage Standing Wave Ratio(VSWR) of a quasi-Yagi antenna.
介绍时域有限差分（FDTD）法计算准八木天线驻波比的算法实现方法。
After the analyses of circuit theory of analogue voltage-to-frequency ratio converter, the design requirement of component parameters and the calculation method are presented.
分析了模拟电压一频率比变换电路原理，给出了元件参数的设计要求及其计算方法。
A method for improving the ability of JZXC 480 track circuit once adjusting was presented. The method is to in crease the ratio of release voltage and work voltage of track relay.
为提高JZXC - 480型轨道电路一次调整的能力，提出改变轨道继电器返还系数的方法，并进行计算机仿真计算。
A method for improving the ability of JZXC 480 track circuit once adjusting was presented. The method is to in crease the ratio of release voltage and work voltage of track relay.
为提高JZXC - 480型轨道电路一次调整的能力，提出改变轨道继电器返还系数的方法，并进行计算机仿真计算。
应用推荐