The PW8205A6S uses advanced trench technology to provide excellent RDS(ON), low gate chargeand operation with gate voltages as low as 2.5V. This DEVICE is suitable for use as a Battery protectionor in other Switching application.
标签： 8205a6
上传时间： 2022-02-14
上传用户：
5G移动通信网络关键技术综述.pdf陈 婧，韩远兵，徐 川 (重庆邮电大学未来网络研究中心 重庆 400065) 摘 要: 为适应未来海量移动数据的爆炸式增长，加快新业务新应用的开发，第五代移动通信( fifth generation mo- bile communication network，5G) 网络应运而生。目前，国内外已经逐渐明确了 5G 的愿景和需求，如何将现有技术和 多种潜在的新技术进行融合以实现 5G 网络成为下一步的研究与发展重点。面向未来 5G 的技术发展，介绍 5G 的 概念、应用场景以及终端用户对 5G 的相关需求; 然后，重点阐述 5G 在无线网络方面具有发展前景的 10 大关键技 术，包括: 超密集异构网络、自组织网络、D2D( DEVICE-to-DEVICE) 通信、M2M( machine-to-machine) 通信、软件定义无线 网络、
上传时间： 2022-02-25
上传用户：zhaiyawei
uninstall the DEVICE in the "Computer Management" pannel.在设备管理器中卸载已有驱动install PL2303-Prolific_DriverInstaller_v1200安装压缩包中的PL2303-Prolific_DriverInstaller_v1200restart your computer.重启计算机
上传时间： 2022-03-13
上传用户：jiabin
CH341系列编程器芯片usb转串口Altium Designer AD原理图库元件库CSV text has been written to file : 1.9 - CH341系列编程器芯片.csvLibrary Component Count : 56Name Description----------------------------------------------------------------------------------------------------CH311Q PC debug port monitorCH331T Mini USB Disk ControllerCH340G CH340H USB to TTL Serial / UART, USB to IrDACH340T USB to TTL Serial / UART, USB to IrDACH340R USB to IrDA, USB to RS232 SerialCH340S_P USB to Print Port / ParallelCH340S_S USB to TTL Serial / UART, pin compatible with CH341CH341A_S USB to TTL Serial / UART / I2C/IICCH341S_P USB to Print Port / ParallelCH341A_P USB to Print Port / ParallelCH341S_S USB to TTL Serial / UARTCH341S_X USB to EPP Parallel / SPI / I2C/IICCH341A_X USB to EPP Parallel / SPI / I2C/IICCH341T USB to TTL Serial / UART / I2C/IICCH345T USB to MidiCH352L_M PCI to 8255 mode 2 Parallel for MCU and 16C550 UART / IrDACH352L_P PCI to Print Port / Parallel and 16C550 UART / IrDACH352L_S PCI to Dual 16C550 UART, TTL Serial*2 / IrDA*1CH362L PCI DEVICE / Slave only for RAM / Expansion ROMCH364F Member of CH364 chipsetsCH364P PCI DEVICE / Slave Embedded Flash ROM, for Expansion ROMCH365P PCI DEVICE / Slave, for I/O port or RAM / ROMCH372T USB DEVICE / Slave for MCU, ParallelCH372A USB DEVICE / Slave for MCU, ParallelCH372V USB DEVICE / Slave for MCU, ParallelCH374S USB Host & DEVICE / Slave for MCU, parallel / SPICH374T USB Host & DEVICE / Slave for MCU, parallel / SPICH375S USB Host & DEVICE / Slave for MCU, parallel / UART SerialCH375A USB Host & DEVICE / Slave for MCU, parallel / UART SerialCH375V USB Host & DEVICE / Slave for MCU, parallel / UART SerialCH411G FDC MFM encode and decodeCH421A Dual port bufferCH421S Dual port bufferCH423D I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423S I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423D_D I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423S_D I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423G I2C/IIC I/O expander, 6 GPO + 5 GPIOCH432Q Dual 16C550 UART with IrDA, parallel / SPICH432T SPI Dual 16C550 UART with IrDACH450K 6 Digits / 48 LEDs Drive & 8x6 Keyboard, I2C/IICCH450H 6 Digits / 48 LEDs Drive & 8x6 Keyboard, I2C/IICCH450L 8 Digits / 64 LEDs Drive & 8x8 Keyboard, I2C/IICCH451L 8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH451S 8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH451D 8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH452L_2 8 Digits / 64 LEDs Drive & 8x8 Keyboard, I2C/IICCH452L_4 8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH452S_2 8 Digits / 64 LEDs Drive & 8x8 Keyboard, I2C/IICCH452S_4 8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH453S 16 Digits / 128 LEDs Drive, I2C/IICCH453D 16 Digits / 128 LEDs Drive, I2C/IICPCI 32Bit PCI Bus, simple / short cardPCI32 32Bit PCI BusUSB USB Port
标签： ch341 编程芯片 usb 串口 altium designer
上传时间： 2022-03-13
上传用户：
USB音频方案,USB声卡方案1. 描述ATE1133是一颗包含音频编解码器、HIFI级单麦克风输入和立体声耳机输出解决方案。内部集成多个模块，包括高速&全速USB Host/DEVICE收发器(PHY)，ARM??Cortex?-M4?32-bit?MCU内核主频96MHZ，16bit ADC采样率：48、96KHZ、16bit DAC采样率：48、96KHZ，支持标准安卓耳机线控按键控制，支持美标CTIA带耳机插拔检测。它非常适用于USB C型桌面拓展坞、数据音频HUB、视频会议、Type-c耳机、C型音频转接头、USB话务耳机、USB车载AUX音频线等应用。此外还支持上位机Windows PC端软件界面在线调试仿真和更新片内flash闪存。2.特点·符合USB 2.0全速运行·符合USB AUDIO & HID设备类规范·支持Headset模式·支持Microphone模式·支持Speaker模式·支持硬件设置三种模式切换·支持左右声道平衡·麦克风Audio-ADC参数： 采样率：48、96KHZ 位宽：16Bit THD+N=0.005% SNR≥98 Bias电压：3V·立体声耳机输出Audio-DAC参数： 采样率：48、96KHZ 位宽：16Bit THD+N=0.003%(RL=32Ω) RL输出摆幅=1.6V 直驱16/32Ω耳机，最大功率35mW·内置低功耗ARM核心，全速运行功耗=3.3V@18ma，功耗0.06mW·支持线控耳机模式：上一曲、下一曲、播放/暂停、点按音量加减、长按音量连续加减·芯片单电源供电：3.3~5V-MAX·32针脚QFN32 4X4 封装
上传时间： 2022-03-22
上传用户：shjgzh
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
上传用户：
本系统采用电动机电枢供电回路串接采样电阻的方式来实现对小型直流有刷电动机的转速测量。该系统主要由二阶低通滤波电路,小信号放大电路、单片机测量显示电路、开关稳压电源电路等组成。同时自制电机测速装置,用高频磁环作为载体,用线圈绕制磁环,利用电磁感应原理检测电机运行时的漏磁,将变化的磁场信号转化为磁环上的感应电流。用信号处理单元电路将微弱电信号转化为脉冲信号,送由单片机检测,从而达到准确测量电机的速度的要求。In this system, the sampling resistance of armature power supply circuit is connected in series to measure the speed of small DC brush motor. The system is mainly composed of second-order low-pass filter circuit, small signal amplifier circuit, single-chip measurement and display circuit, switching regulated power supply circuit and so on. At the same time, the self-made motor speed measuring DEVICE uses high frequency magnetic ring as the carrier, coil winding magnetic ring, and electromagnetic induction principle to detect the leakage of magnetic field during the operation of the motor, which converts the changed magnetic field signal into the induced current on the magnetic ring. The weak electric signal is transformed into pulse signal by signal processing unit circuit, which is sent to single chip computer for detection, so as to meet the requirement of accurate measurement of motor speed.
标签： 直流电动机
上传时间： 2022-03-26
上传用户：
随着光伏发电系统快速发展,以及电动汽车充电桩的普及,传统的剩余电流保护器无法满足实际需求。介绍了一款B型剩余电流保护器,采用磁调制剩余电流互感器和零序电流互感器采集剩余电流。根据GB/T 22794—2017标准要求,可识别1 kHz及以下的正弦交流、带和不带直流分量的脉动直流、平滑直流等剩余电流信号。经信号调理电路将电压信号送到单片机进行采集和判断。通过试验测试,该样机在测试精度和速度上均符合国家标准的相关要求。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.
标签： 电流保护器
上传时间： 2022-03-27
上传用户：
以AT89S52单片机为控制核心,采用电容降压技术,Buck电路拓扑,PWM驱动模块和功率器件散热设计,通过高速的数据采集、主功率输入输出模块和控制模块,设计一种新型智能车载充电器.在充电过程中,通过负脉冲瞬间放电实现对铅酸蓄电池的再生修复,提高电池的有效容量,延长使用寿命.该充电器体积小、速度快、效率高、可靠性好.With AT89S52 single chip computer as the control core,a new type of intelligent car-carried charger was designed by using capacitance step-down technology,Buck circuit topology,PWM driving module and power DEVICE heat dissipation design,through high-speed data acquisition,main power input and output module and control module.In the charging process,the regeneration and repair of lead-acid batteries are realized by instantaneous discharge of negative pulse,which improves the effective capacity of batteries and prolongs their service life.The charger has the advantages of small size,fast speed,high efficiency and good reliability.
标签： 车载充电器
上传时间： 2022-03-27
上传用户：
温度控制如今已成为当代社会研究的热点之一,而温度检测在现代设备参数检测中也是一项极其重要的技术,应用十分广泛。与传统的测温方法相比,红外测温方法具有时间短、精度高、使用简单方便等优点。本文以环境温度为被测对象,设计了以STC89C52单片机为控制中心的红外测温装置,能够实现对目标温度的实时采集、处理、显示和报警等功能。本设计主要是由STC89C52单片机、红外测温传感器、LCD1602液晶显示器、按键和蜂鸣器等部分组成,采用非接触的方式对目标温度进行实时检测。Temperature control has become one of the hotspots in contemporary social research,and temperature detection is an extremely important technology in modern equipment parameter detection.Compared with traditional method,the infrared temperature measuring method has advantages of short time,high precision and convenient operation,etc.This paper consider environment temperature as research objects and designs an infrared temperature measuring DEVICE which employs the STC89C52singlechipas-control center,and it can realize timely collection,processing,display and alarm function of the target temperature.The design is mainly composed of STC89C52 singlechip,infrared temperature sensor,LCD1602monitor,keys and buzzer,etc.This design detects the target temperature by non-contact method.
上传时间： 2022-03-27
上传用户：jiabin
