剛剛上傳的是工程B習(xí)題答案,有需要的可下載看看
標(biāo)簽: 工程制圖
上傳時(shí)間: 2018-03-01
上傳用戶:lgdxy
Py3爬取B站視頻彈幕。。。。。。。。。。。。。
上傳時(shí)間: 2019-12-17
上傳用戶:wine
1998年建模B題,內(nèi)含解題方法解題步驟。
標(biāo)簽: 1998 數(shù)學(xué)建模 論文
上傳時(shí)間: 2020-05-02
上傳用戶:isomerrrr
全國(guó)大學(xué)生電子設(shè)計(jì)競(jìng)賽2020年TI杯模擬電子系統(tǒng)設(shè)計(jì)專題邀請(qǐng)賽多種幅度調(diào)制信號(hào)發(fā)生電路(B 題)
標(biāo)簽: 幅度調(diào)制 信號(hào)發(fā)生電路
上傳時(shí)間: 2021-07-08
上傳用戶:st-15180703380
AC220V轉(zhuǎn)DC(12V15W )電源板AD設(shè)計(jì)硬件原理圖+PCB文件,2層板設(shè)計(jì),大小為100*55mm, ALTIUM設(shè)計(jì)的原理圖+PCB文件,可以做為你的學(xué)習(xí)設(shè)計(jì)參考。主要器件型號(hào)如下:Library Component Count : 24Name Description----------------------------------------------------------------------------------------------------2N3904 NPN General Purpose Amplifier2N3906 PNP General Purpose AmplifierBRIDGE1 Diode BridgeCON2 ConnectorCap CapacitorCap Pol1 Polarized Capacitor (Radial)D Zener Zener DiodeDIODE Diode 1N914 High Conductance Fast DiodeECELECTRO2 Electrolytic CapacitorFP103 FUSE-HHeader 2 Header, 2-PinINDUCTOR2 NMOS-2 N-Channel Power MOSFETPC837 OptoisolatorRES2-B Res Varistor Varistor (Voltage-Sensitive Resistor)T TR-2B TRANS1UCC28051 Volt Reg Voltage Regulator
上傳時(shí)間: 2021-11-21
上傳用戶:kent
該文檔為A、B、AB、D類音頻功率放大器簡(jiǎn)介文檔,是一份很不錯(cuò)的參考資料,具有較高參考價(jià)值,感興趣的可以下載看看………………
上傳時(shí)間: 2021-11-28
上傳用戶:qdxqdxqdxqdx
基于DSP設(shè)計(jì)的數(shù)字化大功率電源數(shù)字化全橋變換器電源ALTIUM設(shè)計(jì)硬件原理圖+PCB文件,包括主板和控制板2個(gè)硬件,均為4層板設(shè)計(jì),ALTIUM設(shè)計(jì)的硬件工程文件,包括完整的原理圖和PCB文件,可以做為你的設(shè)計(jì)參考。主板原理圖器件如下:Library Component Count : 55Name Description----------------------------------------------------------------------------------------------------6CWQ09F Schottky Rectifier7416474HC16474LS1647805 7812 7815 7824 ACT45B 共模電感ARRESTER R27030059BAV99 R26010005BRIDGE R26060153CAPCB CD CON4 ConnectorComponent_1_1 D-1N5819 DiodeDEDIO-SMDELECTRO1 R21010742FUSE R27010205HOLHeader 3 Header, 3-PinHeader 6 Header, 6-PinHeader 7 Header, 7-PinIR1150S JQX-115F-I L0 L2 LBAV70 R26010012LM358MOSFET N NMOS-2 R26110100NPN R26080003OPTOISO1 R25030015PNP PNP TransistorR-NTCR20190006 R20190075R21020037 R21020037/工業(yè)B/消費(fèi)C/瓷片電容/4700pF±20%/250Vac/Y2/Y5U/引腳間距7.5mmR26020054 R26020054/工業(yè)A/消費(fèi)C/快恢復(fù)二極管/1000V/1A/1.7V/75ns/SMA/US1M-E3-61TR26030048 R26030048/工業(yè)A/消費(fèi)B/肖特基二極管/1A/100V/0.79V/SMA/SS110LR26030097 R26030097/工業(yè)B/肖特基二極管/60V/1A/0.70V/SMA/B160R29030691 R29030691/防雷接地座/最大尺寸7.36*7*10/紫銅鍍錫RES R20190099RES2 RES_1Res3 ResistorTL431 TRANS01TRANS7-9 Transformer UCC3804VARISTOR R27030060ZENERu型槽3.5x7
標(biāo)簽: tms320f28035 dsp 全橋變換器
上傳時(shí)間: 2021-12-22
上傳用戶:aben
基于ARM-FPGA的IRIG-B碼產(chǎn)生器的研制這是一份非常不錯(cuò)的資料,歡迎下載,希望對(duì)您有幫助!
上傳時(shí)間: 2021-12-30
上傳用戶:
隨著光伏發(fā)電系統(tǒng)快速發(fā)展,以及電動(dòng)汽車充電樁的普及,傳統(tǒng)的剩余電流保護(hù)器無法滿足實(shí)際需求。介紹了一款B型剩余電流保護(hù)器,采用磁調(diào)制剩余電流互感器和零序電流互感器采集剩余電流。根據(jù)GB/T 22794—2017標(biāo)準(zhǔn)要求,可識(shí)別1 kHz及以下的正弦交流、帶和不帶直流分量的脈動(dòng)直流、平滑直流等剩余電流信號(hào)。經(jīng)信號(hào)調(diào)理電路將電壓信號(hào)送到單片機(jī)進(jìn)行采集和判斷。通過試驗(yàn)測(cè)試,該樣機(jī)在測(cè)試精度和速度上均符合國(guó)家標(biāo)準(zhǔn)的相關(guān)要求。The rapid development of photovoltaic power generation systems and the popularity of electric vehicle charging piles make the traditional residual current protective devices unable to meet the actual demand.This paper proposed a type B residual current protective device,which uses the magnetically modulated residual current transformer and the zero sequence current transformer to acquire the residual current.According to the requirements of GB/T 22794—2017,the type B residual current protective device can detect sinusoidal AC residual current of 1kHz and below 1kHz,pulsating DC residual current with and without DC component,smooth DC residual current and so on.The signal processing circuit sends the voltage signal to the MCU for acquisition and judgment.Through experimental tests,the device meets the relevant requirements of national standards in terms of test accuracy and speed.
標(biāo)簽: 電流保護(hù)器
上傳時(shí)間: 2022-03-27
上傳用戶:
高通(Qualcomm)藍(lán)牙芯片QCC5144_硬件設(shè)計(jì)詳細(xì)指導(dǎo)書(官方內(nèi)部培訓(xùn)手冊(cè))其內(nèi)容是針對(duì)硬件設(shè)計(jì)、部分重要元器件選擇(ESD,F(xiàn)ilter)及走線注意事項(xiàng)的詳細(xì)說明。2 Power management 2.1 SMPS 2.1.1 Components specification 2.1.2 Input power supply selection 92.1.3 Minimize SMPS EMI emissions 2.1.4 Internal LDOs and digital core decoupling 2.1.5 Powering external components 2.2 Charger 2.2.1 Charger connections.2.2.2 General charger operation2.2.3 Temperature measurement during charging 2.3 SYS_CTRL 3 Bluetooth radio3.1 RF PSU component choice 3.2 RF band-pass filter3.3 Layout (天線 走線的注意事項(xiàng))4 Audio4.1 Audio bypass capacitors 4.2 Earphone speaker output4.3 Line/Mic input 4.4 Headphone output optimizition5 LED pads 5.1 LED driver 5.2 Digital/Button input 5.3 Analog input5.4 Disabled 6 Reset pin (Reset#)7 USB interfaces7.1 USB device port7.1.1 USB device port7.1.2 Layout notes 7.1.3 USB charger detectionA QCC5144 VFBGA example schematic and BOM B Recommended SMPS components specificationB.1 Inductor specifition B.2 Recommended inductors B.3 SMPS capacitor specifition
上傳時(shí)間: 2022-04-07
上傳用戶:默默
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