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ESD-Phenomena-and-the-<b>Reliability</b>

  • 基于無跡卡爾曼濾波算法的鋰電池SOC估計

    應用無跡卡爾曼濾波算法(UKF)進行鋰電池的SOC估計,采用Thevenin二階RC等效電路模型,對HPPC電池脈沖充放電實驗數據進行Matlab處理,得到較為準確的模型.通過在Matlab中編寫算法程序,對不同工況的估計值與實際值進行誤差估算及對比分析,通過此算法進行SOC估計,得到該算法可有效降低系統誤差并糾正SOC的初值偏差.The non trace Calman filter (UKF) is applied to the SOC estimation of lithium battery. The Thevenin two order RC equivalent circuit model is used to process the HPPC battery pulse charge discharge experimental data by Matlab processing, and a more accurate model is obtained. By writing algorithm program in Matlab, the error estimation and comparison analysis of the estimated value and actual value of different states are carried out, and the SOC estimation is carried out by this algorithm. The algorithm can effectively reduce the system error and correct the initial value deviation of the SOC.

    標簽: 卡爾曼濾波

    上傳時間: 2022-05-03

    上傳用戶:默默

  • 基于PSIM仿真的開關電源Boost電路的設計

    基于PSIM仿真軟件,分析了Boost電路拓撲結構,設定了參數要求進行電路仿真設計,通過電路仿真軟件PSIM對Boost電路工作在CCM模式下,合理設置占空比參數。實驗結果表明理論分析與仿真的一致性和參數設計的正確性,輸出電壓和電流參數穩定,Boost電路輸出效率高。This design is based on PSIM simulation software,analyzes the topology of Boost circuit,sets the parameter re- quirements for circuit simulation design,and reasonably sets the duty cycle parameters for Boost circuit working in CCM mode through PSIM simulation software.The experimental results show that the theoretical analysis and simulation are consis- tent and the parameter design is correct,the output voltage and current parameters are stable.

    標簽: psim 開關電源 boost

    上傳時間: 2022-05-04

    上傳用戶:

  • 基于TMS320F28335的超聲波流量計硬件原理圖+軟件源碼

    基于TMS320F28335的超聲波流量計硬件原理圖+軟件源碼本文以TMS320F28335 處理器為核心,設計一種用于管道流量測量的超聲波流量計。系統硬件由核心板,超聲波發射和接收電路,切換電路,超聲換能器,基于ADS805 的高速信號采集電路,人機交互以及電源等模塊構成。采用時差法進行管道流量測量,時差測量采用SCOT 加權的廣義互相關時延估計算法。本論文設計的超聲波流量計具有測量速度快、準確性好、成本低等優點。關鍵字:C2000,超聲波,流量,廣義互相關算法AbstractA kind of ultrasonic flowmeter using for the pipe flow measurement is designed based onTMS320F28335 in this paper. The system hardware consists of the following parts: the core board,ultrasonic signal transmitter and receiver circuits, switch circuit, ultrasonic transducer, signalacquisition circuit based on ADS805, human-computer interaction module and power supplymodule, etc. The system use the method of time difference for pipeline flow measurement and thetime difference is calculated by the time-delay algorithm of SCOT weighted generalizedcross-correlation. The ultrasonic flowmeter has the features of high testing speed, high precisionand low cost, etc.Keywords: C2000,Ultrasonic, Flow, Generalized Cross-Correlation Algorithm

    標簽: tms320f28335 超聲波流量計

    上傳時間: 2022-05-06

    上傳用戶:

  • 基于DSP28035的高速永磁無刷直流電機驅動系統

    基于DSP28035的高速永磁無刷直流電機驅動系統,包括論文和軟硬設計資料。摘要參賽作品為基于DSP28035的高速永磁無刷直流電機驅動系統。該系統以一臺額定轉速60 krpm的高速永磁無刷直流電機、交錯并聯的Buck電路以及全橋電路為硬件平臺,以DSP28035為控制核心,實現了調壓調速功能和基于坐標變換的無位置傳感器新技術。為實現該系統要求,本作品充分利用了DSP28035的資源例如:CLA模塊,模擬比較器、HPWM模塊以及AD轉換模塊等。AbstractThis work is the drive system for a high speed permanent magnet burshless dc motor based on DSP28035. The hardware platform consists of a BLDC motor(rated speed is 60000rpm), a Buck circuit and an inverter. Under the control of DSP28035, this system can achieve the goal of adjusting the motor’s speed with voltage and the function of sensorless control based on the coordinate transformation. By making full use of resources of the core, such as CLA, analog comparator, HPWM and AD converters, the whole system can meet the requirements.1 引言高速永磁無刷直流電機驅動系統由于基波頻率較高(一般在1kHZ以上),利用逆變橋斬波進行調速的控制方式通常會受到開關管開關頻率的限制,因此該系統多采用三相全橋前級加Buck電路進承擔調壓調速的功能,而三相全橋主要承擔邏輯換相的功能。然而,傳統Buck電路所需電感的體積較大,增加了系統的體積,降低了系統的功率密度。

    標簽: dsp28035 直流電機

    上傳時間: 2022-05-08

    上傳用戶:bluedrops

  • 血氧儀核心硬件電路設計及Multisim仿真

    為了實時檢測血氧量,能使缺氧特別敏感的腦組織或心臟類疾病患者得到及時治療,采用近紅外雙波長透射式光電脈搏血氧測定法,以H橋電路對發射光源進行控制及通用運算放大器搭建濾波電路。運用參數理論計算和計算機仿真結果相對比的方法,通過Mu ltisim軟件對所設計電路進行仿真,仿真結果與理論參數計算相吻合,證明了電路參數設計的可行性,為血氧儀的實物制作提供參考。For real-time detection of oxygen saturation for timely treatment of the brain or heart,which are very sensitive to oxygen inadequacy,the near-infrared wavelengths double photoelectric pulse oximeter transmission method is adopted.The illuminant is controlled with the H bridge circuit and the filter circuit is built with general op-amps.Parameters by theoretical calculation is compared with the computer simulation results in Multisim and satisfactory results are obtained.It is shown that the design of the circuit parameters is feasible and can be a help in making the physical blood-oxygen monitor.

    標簽: multisim 光電二極管 濾波器

    上傳時間: 2022-05-12

    上傳用戶:

  • ICN6202規格書V10

    ICN6201/02 is a bridge chip which receives MIPI? DSI inputs and sends LVDS outputs. MIPI? DSI supports up to 4 lanes and each lane operates at 1Gbps maximum; the totally maximum input bandwidth is 4Gbps; and the MIPI defined ULPS(ultra-low-power state) is also supported. ICN6201 decodes MIPI? DSI 18bepp RGB666 and 24bpp RGB888 packets.The LVDS output 18 or 24 bits pixel with 25MHz to 154MHz, by VESA or JEIDA format.ICN6201/02 support video resolution up to FHD (1920x1080) and WUXGA (1920x1200).ICN6201 adopts QFN48 package and ICN6202 adopts QFN40 package

    標簽: icn6202

    上傳時間: 2022-06-10

    上傳用戶:kingwide

  • 安森美車規級1080P圖像傳感器AR0231手冊

    AR0231AT7C00XUEA0-DRBR(RGB濾光)安森美半導體推出采用突破性減少LED閃爍 (LFM)技術的新的230萬像素CMOS圖像傳感器樣品AR0231AT,為汽車先進駕駛輔助系統(ADAS)應用確立了一個新基準。新器件能捕獲1080p高動態范圍(HDR)視頻,還具備支持汽車安全完整性等級B(ASIL B)的特性。LFM技術(專利申請中)消除交通信號燈和汽車LED照明的高頻LED閃爍,令交通信號閱讀算法能于所有光照條件下工作。AR0231AT具有1/2.7英寸(6.82 mm)光學格式和1928(水平) x 1208(垂直)有源像素陣列。它采用最新的3.0微米背照式(BSI)像素及安森美半導體的DR-Pix?技術,提供雙轉換增益以在所有光照條件下提升性能。它以線性、HDR或LFM模式捕獲圖像,并提供模式間的幀到幀情境切換。 AR0231AT提供達4重曝光的HDR,以出色的噪聲性能捕獲超過120dB的動態范圍。AR0231AT能同步支持多個攝相機,以易于在汽車應用中實現多個傳感器節點,和通過一個簡單的雙線串行接口實現用戶可編程性。它還有多個數據接口,包括MIPI(移動產業處理器接口)、并行和HiSPi(高速串行像素接口)。其它關鍵特性還包括可選自動化或用戶控制的黑電平控制,支持擴頻時鐘輸入和提供多色濾波陣列選擇。封裝和現狀:AR0231AT采用11 mm x 10 mm iBGA-121封裝,現提供工程樣品。工作溫度范圍為-40℃至105℃(環境溫度),將完全通過AEC-Q100認證。

    標簽: 圖像傳感器

    上傳時間: 2022-06-27

    上傳用戶:XuVshu

  • 4G移動通信技術權威指南:LTE與LTE-Advanced.4G LTE.LTE

    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

    標簽: 4g 移動通信

    上傳時間: 2022-07-08

    上傳用戶:

  • Let the following relational tables be given: R = (A, B, C) and S = (D, E, F) where A, B, C, D, E, a

    Let the following relational tables be given: R = (A, B, C) and S = (D, E, F) where A, B, C, D, E, and F are the attributes (columns). Write the SQL statements that will express each of the queries given below:

    標簽: relational following tables given

    上傳時間: 2014-01-14

    上傳用戶:cx111111

  • The Design and Evolution of C++ 國外經典C++原版書庫《C++語言的設計和演化》/(美)斯特郎斯特魯普(Stroustrup,B)著;裘宗燕等譯 十分經典、難得!

    The Design and Evolution of C++ 國外經典C++原版書庫《C++語言的設計和演化》/(美)斯特郎斯特魯普(Stroustrup,B)著;裘宗燕等譯 十分經典、難得!

    標簽: Stroustrup Evolution Design The

    上傳時間: 2016-08-17

    上傳用戶:chenlong

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