因此，高功率因数的大功率开关电源成为研究的热门。
Therefore, the high power factor high-power Switching-Mode power supply becomes the major topic of discussion studying.
大功率开关电源一般采用三相二极管整流桥作为前级整流电路。
The switching power supply usually uses the diodes rectifier as the front converter.
利用大功率开关电源技术研制出新一代的IGBT逆变式恒电位仪。
A new generation of IGBT inverse constant potential instrument is developed by using powerful switching power supply technology.
因此大功率开关电源适配器的研制，正在成为一个广受关注的热点问题。
So, the study of high-power switching adapter is becoming a hot issue.
随着大功率开关电源功率密度的不断提高，合理的热设计是保证电源可靠工作的前提条件。
With the continuous improvement on power density of high-power switching power supply, reasonable thermal design works as a prerequisite to ensure a reliable power supply.
在国外高压大功率开关电源技术已较为成熟，我国对这方面的研究也一直在进行，但目前还不成熟。
The technology of high voltage DC switching power supply has been successfully developed in advanced countries, but is under development in China.
新技术，新产品！全程ZCS、ZVS逆变器、低功耗准谐振驱动、大功率开关电源供电，造就兆赫兹级大功率超高频逆变。
New technology, New Product! Whole process ZCS, ZVS inverter, Low power dissipation quasi-resonant drive, High-power switching power supply, MHz UHF high power inverter.
分析了该电路的基本工作原理、关键参数的设计计算，仿真结果表明这种新型的单级大功率开关电源功率因数可达到0 . 995。
Moreover, its operation process principles and critical parameters are analyzed, its simulation results proved that the novel single stage high power switch source's power factor can achieve 0.995.
介绍了一种用于大功率IGBT厚膜驱动电路的380V系统输入、多路输出辅助开关电源。
An assistant 380V AC-input and multi-output switching power supply is introduced which is used in thick-film driving circuits for large-power IGBT(Insulated Gate Bipolar Transistor).
讨论了低成本开关电源式大功率蓄电池充电机的工作原理，并给出了实用的电路原理图。
This paper discussed the principle of a great power battery charger using low cost switch power converter, the practical circuits are presented.
介绍了一种基于零电压软开关技术和双闭环控制模式的大功率等离子喷涂高频开关电源。
A novel plasma spray power supply based on ZVS soft-switching technology and double close loop control mode is presented in this paper.
大功率通信高频开关电源的噪声干扰中除了有谐波的传导干扰外，还存在电磁的辐射干扰问题。
In high-frequency switching power supply, influence on switching power supply by the more parasitic transformer parameters is increasing.
大功率通信高频开关电源的噪声干扰中除了有谐波的传导干扰外，还存在电磁的辐射干扰问题。
In high-frequency switching power supply, influence on switching power supply by the more parasitic transformer parameters is increasing.
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