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System-on-<b>Chip</b>

  • 基于TMS320F28035芯片為控制核心的空間矢量異步電機(jī)變頻器

    基于TMS320F28035芯片為控制核心的空間矢量異步電機(jī)變頻器  我們設(shè)計(jì)的異步電機(jī)變頻調(diào)速器以TMS320F28035芯片為控制核心,通過輸出三相PWM波控制智能功率模塊IPM驅(qū)動三相異步電機(jī)。我們使用空間矢量SVPWM算法,并對其進(jìn)行了優(yōu)化。采用檢測反電勢的方法省去了昂貴的光電編碼器,大大節(jié)省了成本。同時開創(chuàng)性的研發(fā)了自動根據(jù)運(yùn)行環(huán)境調(diào)節(jié)的自適應(yīng)變頻算法,使我們的變頻調(diào)速器可以在電網(wǎng)條件惡劣的鄉(xiāng)村山區(qū)工作,由此該變頻器已被一家民用水泵生產(chǎn)企業(yè)預(yù)訂。關(guān)鍵字 變頻器 TMS320f28035 IPM SVPWM In our design, the asynchronous machine inverter based on the chip of TMS320F28035 drives the three-Phase asynchronous machine by sending three-phase PWM waves to the IPM, which is short for the Intelligent-Power-Module. The SVPWM (space vector pulse width modulation) strategy is applied to our control algorithm and we optimize it mainly in two aspects. Firstly the inverter detects the speed by measuring the Back EMF instead of installing an expensive photoelectric encoder for costs reduction. 

    標(biāo)簽: tms320f28035 芯片

    上傳時間: 2022-05-08

    上傳用戶:zhanglei193

  • 基于stm32f103c8t6單片機(jī)的步進(jìn)電機(jī)源碼

    說明:  基于stm32f103c8t6單片機(jī)的步進(jìn)電機(jī)控制源碼,固件庫為3.5版本(Based on single-chip stepper motor control stm32f103c8t6 source firmware library version 3.5)

    標(biāo)簽: stm32f103c8t6 單片機(jī) 步進(jìn)電機(jī)

    上傳時間: 2022-05-16

    上傳用戶:xsr1983

  • PCB 焊盤與孔設(shè)計(jì)工藝規(guī)范

    1. 目的 規(guī)范產(chǎn)品的PCB焊盤設(shè)計(jì)工藝, 規(guī)定PCB焊盤設(shè)計(jì)工藝的相關(guān)參數(shù),使得PCB 的設(shè)計(jì)滿足可生產(chǎn)性、可測試性、安規(guī)、EMC、EMI 等的技術(shù)規(guī)范要求,在產(chǎn)品設(shè)計(jì)過程中構(gòu)建產(chǎn)品的工藝、技術(shù)、質(zhì)量、成本優(yōu)勢。 2. 適用范圍本規(guī)范適用于空調(diào)類電子產(chǎn)品的PCB 工藝設(shè)計(jì),運(yùn)用于但不限于PCB 的設(shè)計(jì)、PCB 批產(chǎn)工藝審查、單板工藝審查等活動。本規(guī)范之前的相關(guān)標(biāo)準(zhǔn)、規(guī)范的內(nèi)容如與本規(guī)范的規(guī)定相抵觸的,以本規(guī)范為準(zhǔn)3.引用/參考標(biāo)準(zhǔn)或資料TS-S0902010001 <〈信息技術(shù)設(shè)備PCB 安規(guī)設(shè)計(jì)規(guī)范〉>TS—SOE0199001 <〈電子設(shè)備的強(qiáng)迫風(fēng)冷熱設(shè)計(jì)規(guī)范〉〉TS—SOE0199002 〈<電子設(shè)備的自然冷卻熱設(shè)計(jì)規(guī)范>>IEC60194 〈<印制板設(shè)計(jì)、制造與組裝術(shù)語與定義>> (Printed Circuit Board designmanufacture and assembly-terms and definitions)IPC—A-600F 〈<印制板的驗(yàn)收條件>〉 (Acceptably of printed board)IEC609504。規(guī)范內(nèi)容4。1焊盤的定義  通孔焊盤的外層形狀通常為圓形、方形或橢圓形。具體尺寸定義詳述如下,名詞定義如圖所示。1)   孔徑尺寸:若實(shí)物管腳為圓形:孔徑尺寸(直徑)=實(shí)際管腳直徑+0。20∽0。30mm(8。0∽12。0MIL)左右;若實(shí)物管腳為方形或矩形:孔徑尺寸(直徑)=實(shí)際管腳對角線的尺寸+0.10∽0。20mm(4.0∽8。0MIL)左右。2)   焊盤尺寸: 常規(guī)焊盤尺寸=孔徑尺寸(直徑)+0.50mm(20.0 MIL)左右.…………

    標(biāo)簽: PCB

    上傳時間: 2022-05-24

    上傳用戶:canderile

  • 安森美車規(guī)級1080P圖像傳感器AR0231手冊

    AR0231AT7C00XUEA0-DRBR(RGB濾光)安森美半導(dǎo)體推出采用突破性減少LED閃爍 (LFM)技術(shù)的新的230萬像素CMOS圖像傳感器樣品AR0231AT,為汽車先進(jìn)駕駛輔助系統(tǒng)(ADAS)應(yīng)用確立了一個新基準(zhǔn)。新器件能捕獲1080p高動態(tài)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(shù)(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(xué)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(dǎo)體的DR-Pix?技術(shù),提供雙轉(zhuǎn)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(dá)4重曝光的HDR,以出色的噪聲性能捕獲超過120dB的動態(tài)范圍。AR0231AT能同步支持多個攝相機(jī),以易于在汽車應(yīng)用中實(shí)現(xiàn)多個傳感器節(jié)點(diǎn),和通過一個簡單的雙線串行接口實(shí)現(xiàn)用戶可編程性。它還有多個數(shù)據(jù)接口,包括MIPI(移動產(chǎn)業(yè)處理器接口)、并行和HiSPi(高速串行像素接口)。其它關(guān)鍵特性還包括可選自動化或用戶控制的黑電平控制,支持?jǐn)U頻時鐘輸入和提供多色濾波陣列選擇。封裝和現(xiàn)狀:AR0231AT采用11 mm x 10 mm iBGA-121封裝,現(xiàn)提供工程樣品。工作溫度范圍為-40℃至105℃(環(huán)境溫度),將完全通過AEC-Q100認(rèn)證。

    標(biāo)簽: 圖像傳感器

    上傳時間: 2022-06-27

    上傳用戶:XuVshu

  • MT7628 Datasheet

    Overview The MT7628 router-on-a-chip includes an 802.11n MAC and baseband,a 2.4 GHz radio and FEM,a 575/580MHz MIPS? 24K% CPU core,a 5-port 10/100 fast ethernet switch. The MT7628 includes everything needed to build an AP router from a single chip. The embedded high performance CPU can process advanced applications effortlessly, such as routing, security and VolP. The MT7628 also includes a selection of interfaces to support a variety of applications, such as a USB port for accessing external storage.Features· Embedded MIPS24KEc(575/580 MHz) with 64KBl-Cache and 32 KB D-Cache·2T2R 2.4 GHz with 300 Mbps PHY data rate· Legacy 802.11b/g and HT 802.11n modes·20/40 MHz channel bandwidth· Reverse Data Grant(RDG)· Maximal Ratio Combining(MRC)· Space Time Block Coding(STBC)· MCM 8 Mbytes DDR1 KGD(MT7628KN)

    標(biāo)簽: mt7628

    上傳時間: 2022-07-18

    上傳用戶:

  • This I develops based on the B/S structure student managementsystem management system, hoped brings

    This I develops based on the B/S structure student managementsystem management system, hoped brings a help to the novice

    標(biāo)簽: managementsystem management structure develops

    上傳時間: 2014-01-07

    上傳用戶:釣鰲牧馬

  • 基于單片機(jī)的數(shù)字化B超鍵盤設(shè)計(jì)

    針對目前使用的RS232接口數(shù)字化B超鍵盤存在PC主機(jī)啟動時不能設(shè)置BIOS,提出一種PS2鍵盤的設(shè)計(jì)方法。基于W78E052D單片機(jī),采用8通道串行A/D轉(zhuǎn)換器設(shè)計(jì)了8個TGC電位器信息采集電路,電位器位置信息以鍵盤掃描碼序列形式發(fā)送,正交編碼器信號通過XC9536XL轉(zhuǎn)換為單片機(jī)可接收的中斷信號,軟件接收到中斷信息后等效處理成按鍵。結(jié)果表明,在滿足開機(jī)可設(shè)置BIOS同時,又可實(shí)現(xiàn)超聲特有功能,不需要專門設(shè)計(jì)驅(qū)動程序,接口簡單,成本低。 Abstract:  Aiming at the problem of the digital ultrasonic diagnostic imaging system keyboard with RS232 interface currently used couldn?蒺t set the BIOS when the PC boot, this paper proposed a design method of PS2 keyboards. Based on W78E052D microcontroller,designed eight TGC potentiometers information acquisition circuit with 8-channel serial A/D converter, potentiometer position information sent out with keyboard scan code sequentially.The control circuit based on XC9536 CPLD is used for converting the mechanical actions of the encoders into the signals that can be identified by the MCU, software received interrupt information and equivalently treatmented as key. The results show that the BIOS can be set to meet the boot, ultrasound specific functionality can be achieved at the same time, it does not require specially designed driver,the interface is simple and low cost.    

    標(biāo)簽: 單片機(jī) B超 數(shù)字化 鍵盤設(shè)計(jì)

    上傳時間: 2013-10-10

    上傳用戶:asdfasdfd

  • Award BIOS(Basic Input/Output System)(電腦啟動時所必需)的源碼

    Award BIOS(Basic Input/Output System)(電腦啟動時所必需)的源碼

    標(biāo)簽: Output System Award Basic

    上傳時間: 2014-01-04

    上傳用戶:ecooo

  • See Appendix B for a description of the programs included on this companion disk. RESOURCE.WRI iden

    See Appendix B for a description of the programs included on this companion disk. RESOURCE.WRI identifies other books and resources for Internet programming. WEBHELP.HLP contains an introduction to the World Wide Web. TCPMAN.HLP provides detailed instructions to help you use the Trumpet Winsock included on this disk. Use the Program Manager s File menu Run option to execute the SETUP.EXE program found on this disk. SETUP.EXE will install the programs on your hard drive and create an Internet Programming group window. Internet編程技術(shù) [配套程序] [涉及平臺] VC [作者] void [文件大小] 1032K

    標(biāo)簽: description companion Appendix RESOURCE

    上傳時間: 2013-12-04

    上傳用戶:asasasas

  • Based on 80C196MC One-chip Computer Frequency Conversion Rapid System of Accent Design Program Listi

    Based on 80C196MC One-chip Computer Frequency Conversion Rapid System of Accent Design Program Listing

    標(biāo)簽: Conversion Frequency Computer One-chip

    上傳時間: 2015-06-11

    上傳用戶:我們的船長

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