数字传输系统的品质因数Q—这个新概念可以用于具有各种调制的数字传输系统性能的分析。
The digital transmission system Q factor-a new concept may be used to analyse the characteristics of digital transmission systems with different kinds of modulation.
增益调制器作为功率因数校正电路的核心电路，通过控制输入电流来得到一个高的功率因数。
As the heart of the power factor correction circuit, the gain modulator gets a high power factor by controlling the input current.
电流型四象限变流器是一种脉冲宽度调制的交直流变换装置，具有功率因数高、谐波电流小、再生方便等优点。
Currcnt-type four quadrant converter is an AC-DC converting device with pulse width modulation, whose advantages are high power factor, low harmonic current and convenient regeneration etc.
介绍了一种脉宽调制型功率因数测量电路的工作原理。
Introduced the principles of pulse modulating circuit for measuring power factor.
本文讨论了脉宽调制(PWM)逆变式弧焊电源的功率因数。
The power factor of PWM are welding power source has been discussed in this paper.
该表达式与器件静特性、功率因数、调制度及负载电流有关，利用其计算不同载波调制下通态损耗时只需改动导通占空比。
The results clearly show conduction losses are the function of semiconductor static characteristic, power factor, modulation depth and load current.
该表达式与器件静特性、功率因数、调制度及负载电流有关，利用其计算不同载波调制下通态损耗时只需改动导通占空比。
The results clearly show conduction losses are the function of semiconductor static characteristic, power factor, modulation depth and load current.
应用推荐