隨著科技的發(fā)展，人們在日常生活中使用的電器越來越多，電子設(shè)備的電磁兼容性（EMC）也越來越重要。所以，人們對電子設(shè)備的電磁兼容性的要求也越來越嚴(yán)格，越來越規(guī)范。而在市場競爭中，如何降低成本、減少設(shè)備體積，是各電子設(shè)備制造廠家重點(diǎn)研究的課題。通過對開關(guān)電源的EMI濾波電路的類別和相應(yīng)的技術(shù)特點(diǎn)進(jìn)行分析，設(shè)計(jì)出一種既能提高性能，又能降低成本的濾波電路。With the development of technology, appliances people use in their daily lives, more and more electronic devices electromagnetic compatibility （ EMC ） has become increasingly important. So, people electromagnetic compatibility requirements of electronic devices have become increasingly stringent, more and more standardized. The competition in the market, how to reduce costs, reduce equipment size, is the subject of the electronic equipment manufacturer focused on research. Through the TECHNICAL characteristics of the respective category and the EMI filter circuit switching power supply is analyzed both designed to improve a performance of the filter circuit can reduce the cost.
標(biāo)簽： 開關(guān)電源 濾波電路
上傳時(shí)間： 2022-04-23
上傳用戶：
PrefaceDuring the past years, there has been a quickly rising interest in radio access technologies for providingmobile as well as nomadic and fixed services for voice, video, and data. The difference indesign, implementation, and use between telecom and datacom technologies is also becoming moreblurred. One example is cellular technologies from the telecom world being used for broadband dataand wireless LAN from the datacom world being used for voice-over IP.Today, the most widespread radio access technology for mobile communication is digital cellular,with the number of users passing 5 billion by 2010, which is more than half of the world’s population.It has emerged from early deployments of an expensive voice service for a few car-borne users,to today’s widespread use of mobile-communication devices that provide a range of mobile servicesand often include camera, MP3 player, and PDA functions. With this widespread use and increasinginterest in mobile communication, a continuing evolution ahead is foreseen.This book describes LTE, developed in 3GPP (Third Generation Partnership Project) and providingtrue 4G broadband mobile access, starting from the first version in release 8 and through the continuingevolution to release 10, the latest version of LTE. Release 10, also known as LTE-Advanced,is of particular interest as it is the major technology approved by the ITU as fulfilling the IMTAdvancedrequirements. The description in this book is based on LTE release 10 and thus provides acomplete description of the LTE-Advanced radio access from the bottom up.Chapter 1 gives the background to LTE and its evolution, looking also at the different standardsbodies and organizations involved in the process of defining 4G. It also gives a discussion of the reasonsand driving forces behind the evolution.Chapters 2–6 provide a deeper insight into some of the technologies that are part of LTE and itsevolution. Because of its generic nature, these chapters can be used as a background not only for LTEas described in this book, but also for readers who want to understand the technology behind othersystems, such as WCDMA/HSPA, WiMAX, and CDMA2000.Chapters 7–17 constitute the main part of the book. As a start, an introductory TECHNICAL overviewof LTE is given, where the most important technology components are introduced based onthe generic technologies described in previous chapters. The following chapters provide a detaileddescription of the protocol structure, the downlink and uplink transmission schemes, and the associatedmechanisms for scheduling, retransmission and interference handling. Broadcast operation andrelaying are also described. This is followed by a discussion of the spectrum flexibility and the associated
標(biāo)簽： 4g 移動(dòng)通信
上傳時(shí)間： 2022-07-08
上傳用戶：
eeworm.com VIP專區(qū) 單片機(jī)源碼系列 29資源包含以下內(nèi)容：1. 單片機(jī)開發(fā)使用工具.zip2. 低成本8位單片機(jī)控制的光電尋跡智能車.zip3. nios ii 入門手冊中文版.zip4. 絕密單片機(jī)筆記.pdf5. 漢字轉(zhuǎn)unicode帶16進(jìn)制.exe6. 基于單片機(jī)的智能小車程序.zip7. 8路串口繼電器.zip8. Kinetis_K60開源底層驅(qū)動(dòng)開發(fā)包(20120328).rar9. 34個(gè)單片機(jī)實(shí)例(包括框圖和程序).doc10. 單片機(jī)功能簡圖.pdf11. 按鍵漫談.pdf12. 暑期單片機(jī)訓(xùn)練題集.pdf13. 基于單片機(jī)的數(shù)字時(shí)鐘.doc14. 電子工程師知識.doc15. DIY單片LCD投影機(jī).doc16. 歐姆龍plc編程軟件使用手冊.pdf17. Keil_uVision4安裝破解方法與漢化.doc18. 單片機(jī)C語言應(yīng)用.pdf19. 單片機(jī)開發(fā)板原理圖.pdf20. McuTools 工具集成 非常實(shí)用.zip21. Keil_uvision教程.doc22. STC單片機(jī)資料.pdf23. CAD技巧120個(gè)絕對實(shí)用.doc24. 51單片機(jī)控制的步進(jìn)電機(jī).doc25. 譚浩強(qiáng)C語言程序設(shè)計(jì).pdf26. 三天入門Cortex-M4.pdf27. 數(shù)碼管顯示—ADC0832電壓表PROTUES仿真.rar28. 避障小車.doc29. 算法設(shè)計(jì)與分析.zip30. 王爽《匯編語言》.pdf31. 算法大全.zip32. K60文檔整合.rar33. AT89C52中文手冊.pdf34. 更方便的定時(shí)器計(jì)算.exe35. AT89S52消防智能電動(dòng)車設(shè)計(jì).rar36. 搖搖棒資料.rar37. 單片機(jī)的開發(fā)軟件STC-ISP-V4.83-NOT-SETUP-CHINESE.EXE38. keil與Proteus使用.pdf39. C8051F000_03_IcpdfCom.pdf40. C8051F005_IcpdfCom.pdf41. AT89S52單片機(jī)程序50例（00-50）.rar42. STCMCU全系列頭文件.zip43. 全套pads2007視頻教程.rar44. 33個(gè)畢業(yè)設(shè)計(jì)——單片機(jī)類.rar45. 最全版ds18b20簡體中文資料.rar46. 【仿真】PROTEUS中Max7221數(shù)碼管動(dòng)態(tài)顯示.rar47. USART串口編程.pdf48. MCS-51單片機(jī)原理及實(shí)用技術(shù).rar49. lcd1602字符手冊.pdf50. McuTools工具集成.zip51. 單片機(jī)源程序精華包.rar52. 單片機(jī)高級語言C51應(yīng)用程序設(shè)計(jì).pdf53. STM32中文參考手冊.pdf54. 16-16點(diǎn)陣字模生成軟件 綠色版.rar55. 利用Protel99SE設(shè)計(jì)PCB基礎(chǔ)教程.rar56. NUC122 TECHNICAL Reference Manual SC V1.06.pdf57. Keil_C51幾種精確延時(shí)方法.doc58. MedWin v2.04單片機(jī)集成開發(fā)環(huán)境(中文版).rar59. ARM Cortex-M0原理與應(yīng)用實(shí)踐V1.5.pdf60. Proteus單片機(jī)仿真實(shí)例大全.rar61. 單片機(jī)wifi方案.pdf62. 邊學(xué)邊用單片機(jī).rar63. 單片機(jī)常用模塊電路大全.zip64. 偉福E2000仿真機(jī)軟件下載.zip65. adc8009應(yīng)用實(shí)例--基于51單片機(jī)的PWM直流電機(jī)調(diào)速proteus仿真.zip66. 《51單片機(jī)C語言實(shí)例fenxi》寫的還可以.pdf67. MicroChip Pic電子發(fā)燒友_開發(fā)工具下載.zip68. 8X8點(diǎn)陣取模軟件.zip69. STC89CXX_GUIDE-CHINESE.pdf70. 芯源的單片機(jī)教程.pdf71. CodeVisionAVR破解版.rar72. lcd1602顯示.rar73. in4007和in4148區(qū)別.pdf74. MSP430單片機(jī)實(shí)時(shí)多任務(wù)操作系統(tǒng)c源代碼.zip75. Keil C51 V6.23 中文漢化程序_keil c51軟件下載.zip76. 單片機(jī)反編譯器 V1.2下載.zip77. Keil Arm7 設(shè)計(jì)軟件_V1.0測試版下載.zip78. PZISP自動(dòng)下載軟件.exe79. Lope 51 仿真軟件 Ver 3.26 中文完整版_下載.rar80. NE555手冊.pdf81. Keil C51 V6.21的安裝程序_Keil C51下載.zip82. HC6800說明書.pdf83. 51的上位機(jī)程序.docx84. Keil C51 7.01 DEMO版_（有2k代碼大小限制）下載.zip85. PIC單片機(jī)的C語言使用.doc86. keil7.06完全破解版_免費(fèi)下載.rar87. PIC單片機(jī)原理圖.pdf88. Keil C51 V7.0中文漢化程序_免費(fèi)下載.zip89. KEIL7.0完全破解版、中文補(bǔ)丁_keil下載.zip90. KEIL中文完全破解版_免費(fèi)下載.rar91. protues仿真keil程序 初學(xué)者的福音.zip92. 可移植到51單片機(jī)_T9拼音輸入法.wps93. RTX51多任務(wù)操作系統(tǒng)中文使用指南.pdf94. 串口調(diào)試助手大全免費(fèi)下載.rar95. 80C51單片機(jī)的結(jié)構(gòu).ppt96. 16.16LED點(diǎn)陣字庫軟件.rar97. 超聲波測距離.pdf98. 怎樣才能學(xué)好單片機(jī).pdf99. 計(jì)算51單片機(jī)波特率程序_免費(fèi)下載.zip100. 單片機(jī)初學(xué)習(xí).pdf
上傳時(shí)間： 2013-07-22
上傳用戶：eeworm
蟲蟲下載站版權(quán)所有 京ICP備2021023401號-1
