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  • PLC多种液体自动混合

    采用的PLC是西门子S7-200系列,仿真编程软件为STEP7-Micro。在初始状态,容器是空的,各阀门皆关闭,Y1、Y2、Y3灯皆暗和M搅拌机均为OFF,液面传感器L1、L2、L3为关,加热器H为关。若要启动操作,按下启动按钮(I0.0),开始下列操作: (1)Y1、Y2为ON,液体A和B同时注入容器,当液面达到L2时,L2为ON,使Y1、Y2为OFF,Y3为ON,即关闭Y1、Y2阀门,打开液体C的阀门Y3。 (2)液面达到L1时,Y3为OFF,M为ON,即关闭阀门Y3,电动机起动开始搅拌。 (3)经10S搅匀后,M为OFF,停止搅拌,H为ON,加热器开始加热。 4、当混合液体温度达到某一指定值时,T为ON,H为OFF,停止加热,使电磁阀Y4为ON,开始放出混合液体。 (4)当液体高度降为L3后,L3从ON到OFF,再经5S,容器放空,Y4为OFF,开始下一周期。当按下停止按钮后,在当前的混合操作处理完毕后,停止操作,停在初始状态。

    标签: plc 多种液体自动混合 西门子 S7-200

    上传时间: 2021-12-31

    上传用户:XuVshu

  • DDR4标准 JESD79_4

    1. Scope ......................................................................................................................................................................... 12. DDR4 SDRAM Package Pinout and Addressing ....................................................................................................... 22.1 DDR4 SDRAM Row for X4,X8 and X16 ................................................................................................................22.2 DDR4 SDRAM Ball Pitch........................................................................................................................................22.3 DDR4 SDRAM Columns for X4,X8 and X16 ..........................................................................................................22.4 DDR4 SDRAM X4/8 Ballout using MO-207......................................................................................................... 22.5 DDR4 SDRAM X16 Ballout using MO-207.............................................................................................................32.6 Pinout Description ..................................................................................................................................................52.7 DDR4 SDRAM Addressing.....................................................................................................................................73. Functional Description ...............................................................................................................................................83.1 Simplified State Diagram ....................................................................................................................................83.2 Basic Functionality..................................................................................................................................................93.3 RESET and Initialization Procedure .....................................................................................................................103.3.1 Power-up Initialization Sequence .............................................................................................................103.3.2 Reset Initialization with Stable Power ......................................................................................................113.4 Register Definition ................................................................................................................................................123.4.1 Programming the mode registers .............................................................................................................123.5 Mode Register ......................................................................................................................................................134. DDR4 SDRAM Command Description and Operation ............................................................................................. 244.1 Command Truth Table ..........................................................................................................................................244.2 CKE Truth Table ...................................................................................................................................................254.3 Burst Length, Type and Order ..............................................................................................................................264.3.1 BL8 Burst order with CRC Enabled .........................................................................................................264.4 DLL-off Mode & DLL on/off Switching procedure ................................................................................................274.4.1 DLL on/off switching procedure ...............................................................................................................274.4.2 DLL “on” to DLL “off” Procedure ..............................................................................................................274.4.3 DLL “off” to DLL “on” Procedure ..............................................................................................................284.5 DLL-off Mode........................................................................................................................................................294.6 Input Clock Frequency Change ............................................................................................................................304.7 Write Leveling.......................................................................................................................................................314.7.1 DRAM setting for write leveling & DRAM termination function in that mode ............................................324.7.2 Procedure Description .............................................................................................................................334.7.3 Write Leveling Mode Exit .........................................................................................................................34

    标签: DDR4

    上传时间: 2022-01-09

    上传用户:

  • 高通(Qualcomm)蓝牙芯片QCC5151_硬件设计详细指导书(官方内部培训手册)

    高通(Qualcomm)蓝牙芯片QCC5151_硬件设计详细指导书(官方内部培训手册)共52页其内容是针对硬件设计、部分重要元器件选择(ESD,Filter)及走线注意事项的详细说明。2 Power management 2.1 SMPS 2.1.1 Components specification 2.1.2 Input power supply selection 2.1.3 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 (天线 走线的注意事项)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 QSPIinterface 8 USB interfaces 8.1 USB device port8.1.1 USB connections8.1.2 Layout notes8.1.3 USB charger detection

    标签: qualcomm 蓝牙芯片 qcc5151

    上传时间: 2022-01-24

    上传用户:XuVshu

  • PW2601_2.0.pdf规格书下载

    The PW2601 is a charger front-end integrated circuit designed to provide protection to Li-ionbatteries from failures of charging circuitry. The device monitors the input voltage, battery voltageand the charging current to make sure all three parameters are operated in normal range. Thedevice will switch off internal MOSFET to disconnect IN to OUT to protect load when any of inputvoltage, output current exceeds the threshold. The Over temperature protection (OTP) functionmonitors chip temperature to protect the device. The PW2601 also can protect the system’sbattery from being over charged by monitors the battery voltage continuously. The deviceoperates like a linear regulator, maintaining a 5.1V output with input voltages up to the input overvoltage threshold.The PW2601 is available in DFN-2x2-8L package. Standard products are Pb-free and Halogenfree

    标签: pw2601

    上传时间: 2022-02-11

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  • PW2312_2.0.pdf规格书下载

    The PW2312 is a high frequency, synchronous, rectified, step-down, switch-mode converter withinternal power MOSFETs. It offers a very compact solution to achieve a 1.5A peak output currentover a wide input supply range, with excellent load and line regulation.The PW2312 requires a minimal number of readily available, external components and is available ina space saving SOT23-6 package.

    标签: pw2312

    上传时间: 2022-02-11

    上传用户:qingfengchizhu

  • PW2163D.pdf规格书下载

    The PW2163D is a high frequency, synchronous, rectified, step-down, switch-mode converter withinternal powerMOSFETs. It offers a very compact solution to provide a 3A continuous current over awide input supply range,with excellent load and line regulation.The PW2163D requires a minimal number of readily available, external components and is availablein a spacesaving SOT23-6 package

    标签: pw2163d

    上传时间: 2022-02-11

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  • ST7789V IC规格书

     Single chip TFT-LCD Controller/Driver with On-chip Frame Memory (FM) Display Resolution: 240*RGB (H) *320(V) Frame Memory Size: 240 x 320 x 18-bit = 1,382,400 bits LCD Driver Output Circuits- Source Outputs: 240 RGB Channels- Gate Outputs: 320 Channels- Common Electrode Output Display Colors (Color Mode)- Full Color: 262K, RGB=(666) max., Idle Mode Off- Color Reduce: 8-color, RGB=(111), Idle Mode On Programmable Pixel Color Format (Color Depth) for Various Display Data input Format- 12-bit/pixel: RGB=(444)- 16-bit/pixel: RGB=(565)- 18-bit/pixel: RGB=(666) MCU Interface- Parallel 8080-series MCU Interface (8-bit, 9-bit, 16-bit & 18-bit)- 6/16/18 RGB Interface(VSYNC, HSYNC, DOTCLK, ENABLE, DB[17:0])- Serial Peripheral Interface(SPI Interface)- VSYNC Interface

    标签: st7789v LCD

    上传时间: 2022-03-04

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  • 使用PCB设计天线 对于2.4G天线设计详细描述

    v> 目前最常见的蓝牙天线有偶极天线(dipole antenna),倒 F 型天线(planar inverted F  anternna)、曲流线型天线(meander line antenna)、微小型陶瓷天线(ceramic antenna)、液晶 聚合体天线(lcp)和棒状天线(2.4G 频率专用)等。由于这些具有近似全向性的辐射场型 以及结构简单、制作成本低的优点,所以非常适合嵌入蓝牙技术装置使用。

    标签: pcb 天线

    上传时间: 2022-03-11

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  • ADC模数转换器件Altium Designer AD原理图库元件库

    ADC模数转换器件Altium Designer AD原理图库元件库SV text has been written to file : 4.4 - ADC模数转换器件.csvLibrary Component Count : 29Name                Description----------------------------------------------------------------------------------------------------ADC0800             National 8-Bit Analog to Digital ConverterADC0809             ADC0831             ADCADC0832             ADC8                Generic 8-Bit A/D ConverterCLC532              High-Speed 2:1 Analog MultiplexerCS5511              National 16-Bit Analog to Digital ConverterDAC8                Generic 8-Bit D/A ConverterEL1501              Differential line Driver/ReceiverEL2082              Current-Mode MultiplierEL4083              Current Mode Four Quadrant MultiplierEL4089              DC Restored Video AmplifierEL4094              Video Gain Control/FaderEL4095              Video Gain Contol/Fader/MultiplexerICL7106             LMC6953_NSC         PCI Local Bus Power SupervisorMAX4147             300MHz, Low-Power, High-Output-Current, Differential Line DriverMAX4158             350MHz 2-Channel Video Multiplexer-AmplifierMAX4159             350MHz 2-Channel Video Multiplexer-AmplifierMAX4258             250MHz, 2-Channel Video Multiplexer-AmplifierMAX4259             250MHz 2-Channel Video Multiplexer-AmplifierMAX951              Ultra-Low-Power, Single-Supply Op Amp + Comparator + ReferenceMAX952              Ultra-Low-Power, Single-Supply Op Amp + Comparator + ReferenceMC1496              Balanced Modulator/DemodulatorPLL100k             Generic Phase Locked LoopPLL10k              Generic Phase Locked LoopPLL5k               Generic Phase Locked LoopPLLx                Generic Phase Locked Loop水位计              

    标签: adc 模数转换 altium designer

    上传时间: 2022-03-13

    上传用户:

  • J-LINK下载器

    首先下载软件,解压软件,安装在程序中找到SEGGER,选里面的J-FLASH,进入界面,刚开始的那个界面可以忽略,不用建project也可以;单击菜单栏的“Options---Project settings”打开设置,进行jlink配置;正在General选项,选择“USB”,一般都是默认配置,确认一下即可;然后在CPU选项,选择芯片型号,先选择“Device”才能选择芯片型号,芯片型号,要根据你使用的芯片进行选择;在Target interface选项 里面选择SWD模式;首先Target里面选“Connection”连接目标芯片,然后 Target--Auto进行程序烧写;首先Target里面选择“Connection”连接目标芯片,然后 Target--Auto进行程序烧写.SEGGER J-Links are the most widely used line of debug probes available today. They've proven their value for more than 10 years in embedded development. This popularity stems from the unparalleled performance, extensive feature set, large number of supported CPUs, and compatibility with all popular development environments.

    标签: JLINK

    上传时间: 2022-03-22

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