通信开关电源,telecom switching power supply
1)telecom switching power supply通信开关电源
1.In this paper,the application of the intelligent control technology intelecom switching power supply system converter has been studied.文章研究了智能控制技术在通信开关电源系统变换器中的应用。
英文短句/例句
1.Design & Development of Intelligent Communication Switching Power Supply Based on DSP;基于DSP的智能通信开关电源设计及开发
2.The Preparation Plan of the Emergency Treatment about Telecom Power Supply Equipment关于通信开关电源设备的应急处理预备方案
3.Development on Intellectual Monitor System and Modules of Communication Switching Power Supply System;通信开关电源智能监控系统及智能模块的研制
4.Study on the PID of Convertor in Telecom Switching Power Supply通信开关电源系统中变换器的智能控制设计
5.Analysis of Restraining EMI in Communication High Frequence Switching Power Supply通信高频开关电源电磁干扰抑制分析
6.Study on the Intelligent Auto Transfer Switch Equipment with Communicatian Ability;可通信智能型双电源转换开关的研究
7.Study & Development of 48V/25A Communication High Frequency Switching Power Supply;48V/25A通信用高频开关电源的研究与开发
8.Research and Design of High-Power, Communication Switching Mode Power Supply通信用大功率开关电源的研究设计与实现
9.Moderate and Small Communications Power Based on High Frequency and Switch Mode一种中小功率的高频开关式通信电源的设计
10.The Composition,Management and Maintenance of High-frequency Switching Communication Power Supply Systems高频开关通信电源系统的组成、管理和维护
11.Transmitting noise is main interfereing source of switch power supply which is coupled through lines of power supply, singal, interlinkage and grouding.传导型噪声是开关电源的主要骚扰源，它可以通过电源线、信号线、互连线、接地导体等进行耦舍。
12.Make sure switch is OFF before turning on power.接通电源前,应确保开关处于断开位置。
13.APPLICATION AND EVALUATION OF HIGH FREQUENCY SWITCH SUPPLY IN TELECOMMUNICATION SUPPLY SYSTEM;高频开关电源技术在电信电源系统中的应用
14.Research and Development of the Remote Monitoring System for Telecom Power Supply;通信电源远程监控系统的研究与开发
15.Development and Research of Communication Power Supply Supervision Technology;通信电源集中监控技术的研究与开发
16."With switch "ON", push the hair trimmer knob up."接通电源并将侧轧剪开关推上。
17.press the on/off switch按开关通电[断电]
18.The effect of EMI has been reduced through frequency jitter.通过频率抖动,降低了开关电源的电磁干扰影响。
相关短句/例句
switch mode communication power开关式通信电源
1.This paper briefly expounds the concepts of the electromagnetic compatibility, analyzes on the basic features of theswitch mode communication power and the causes and types of the electromagnetic interference, and puts forward some measures for preventing the common electromagnetic interference.概述了电磁兼容性的概念,分析了开关式通信电源的基本特性以及产生电磁干扰的原因与类型,就使用中常见的电磁干扰问题提出了防护措施。
3)telecom power supply equipment通信开关电源设备
4)communication high frequence switching power supply通信高频开关电源
1.Aiming at the instability ofcommunication high frequence switching power supply,analyzes the mechanism of producing EMI in high frequence switching power supply and puts forward effective measurements to restrain EMI.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。
5)on and off switch电源开关，通断开关
6)radio communication switch通信电台开关
延伸阅读
开关电源开关电源switching mode power supply+U+U.本DC千R日Uo。习T。书R(a)(b)U.c未R日U。┌───┐│ZnC:二│└───┘L(e)(d)图1开关电源基本形式(a)串联形式;(b)并联形式;(c)反极性形式;(d)古卡形式开升·483·想器件，即它开通时正向压降为零，关断时电阻呈无穷大。随着T的开关，D两端呈现幅值为U，的方波，它经L，C滤波，在C两端获得直流电压Uo。设开通时间为T。，关断时间为Toff，周期T=Tol+Toff，占空比8二T，/T，则从电感L开关时间伏秒面积相等原理，即(U、一u。)T。=U。T流，得到U。=SU，。一般占空比小于1，因而串联形式开关电源的输出电压低于输人电压。从电感L开关时间伏秒面积相等的原理还可以推导出其它3种形式输出电压与输人电压的关系式如下:并联形式1二二。切~椒一，二夕，二~。。~以=;月成U二;反极性形式Un=了竺下U。;古卡形式~。1一口~“’~~’一zM产、侧。1一口~“’目”产F~0U_=7兰不Un~“1一8~50开关电源的控制方式主要有4种:①自由振荡型，即开关频率、开通和关断时间均在一定范围内变化;②脉宽调制(PWM)型，即频率固定，开通或关断时间可变;③谐振型，即开通或关断时间固定，频率可变;④移相型，电路内至少有两个开关器件，同一频率的两列方波之间的相位差可变。目前，微型计算机中常用的是无工频变压器开关电源。新的技术，如开关损耗为零、抑制电磁干扰、校正功率因数等，也得到广泛应用。无工频变压器开关电源此电源是用高频变压器代替工频变压器，因变压器尺寸与开关频率的3/4次方成反比，滤波器尺寸随频率增加而线性地减小，所以当开关频率达20k卜压以上时，电源的尺寸和重量显著减小。无工频变压器开关电源的常用形式有正激、反激、推挽、半桥、全桥、古卡和串、并联谐振等。图2是典型的无工频变压器开关电源方框图，它包括电磁干扰(EMI)滤波器、桥式整流器、输人滤波器、开关晶体管、高频变压器、次级二极管整流和式开关电源，它的变压器磁心是单向磁化。
