产品特性介绍AFE 特性■ 集成硬件过充电保护功能 - 独立PF管脚输出低电平■ 集成硬件放电短路保护功能■ 集成平衡开关■ 集成充电器检测功能■ 集成负载检测功能■ 集成充放电状态检测功能■ 集成小电流唤醒功能■ 集成WatchDog/Reset功能■ 集成Alarm功能■ 集成负端NMOS驱动(放电PWM调控)■ 支持电芯乱序上电■ 2通道温度采集■ 12-bit VADC电压采集■ 13-bit Ʃ-∆ CADC电流采集■ 集成LDO模块:3.3V/25mA@MAX■ 集成TWI通讯(CRC-8,10KHz~400KHz)■ 低功耗模式 - 正常模式≤70uA@25℃ - PowerDown模式≤1uA@25℃■ 工作电压 - 8V~50V(VBAT端口)MCU 特性■ 基于8051指令流水线结构的8位单片机 - CPU机器周期:1个振荡周期■ Flash ROM:64K字节■ RAM:内部256字节,外部2816字节■ 类EEPROM:最大4096字节(代码选项可选)■ 内部RC振荡器:24MHz(±1%)/128K(±10%)■ I/O内建上拉电阻(30kΩ)■ 1个16位定时器/计数器T3■ 3个16位PCA0、PCA1、PCA2各含2个比较/捕捉单元■ 3路12位PWM定时器■ SPI接口(主从模式)■ TWI接口(主从模式)■ 内建数字逻辑可配置模块(LCM)■ 3路增强型UART(3V/5V通讯)(自带波特率的uart通讯)■ 11通道12位模数转换器(ADC)■ 内建CRC校验模块,校验空间大小可选■ 看门狗定时器(WDT)■ 预热计数器■ 中断源 - 定时器3,PCA0-2,外部中断1-2,外部中断4:6输入 - ADC,EUART,SPI,PWM,SCM,CRC,TWI,LPD■ 低功耗工作模式:空闲模式/掉电模式■ 工作电压:VDD = 2.7V - 5.5V■ 封装: - LQFP 64L
上传时间: 2022-03-24
上传用户:qingfengchizhu
本人验证真实可靠,需要PCB资料的,来做参考设计请和本人联糸。
上传时间: 2022-03-25
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对某四轮独立驱动电动汽车轮毂电机进行研究,设计一种永磁无刷直流电机控制器.以STM32F103RBT6芯片为基础,对电机驱动电路、采样电路和保护电路分别进行硬件设计与分析;同时,采用模块化软件设计方案,对该控制器的软件系统进行升级.实验验证表明:所设计的电机控制器能使电机响应迅速、转速稳定、无超调,且电动车动力输出性能良好.A permanent magnet brushless direct current motor controller was designed by studying the hub motor of a four-wheel independent drive electric vehicle.Based on STM32 F103RBT6 chip,the hardware design and analysis of motor drive circuit,sampling circuit and protection circuit were carried out respectively.At the same time,modular software design scheme was adopted to upgrade the software system of the controller.Experimental results show that the designed motor controller can ensure the motor fast response,stable speed,no overshoot,and good power output performances.
上传时间: 2022-03-26
上传用户:qingfengchizhu
针对电子产品中锂电池供电时间有限、各种手机有线充电接头不兼容等问题,提出一种基于STM32的智能多手机无线充电器设计方案。该充电器以STM32F407单片机为控制核心,由电流传感器、压力传感器、发射和接收线圈、WiFi模块、蜂鸣器等多种元器件组成。另外,通过手机APP与WiFi模块连接的方式,实现智能远程控制充电设备数量和监管手机充电过程。该充电器可嵌入桌面,使用方便、灵活,并且通过电流和压力传感器进行检测,具有过充过流保护和降低待机功耗的功能。
上传时间: 2022-03-26
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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
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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
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现代生活中,宠物对人的作用越来越重要.人们总是因为旅游、出差等短期外出,无法较好照顾宠物,因此提出一种基于单片机的太阳能智能宠物喂养系统,能够定时投食喂养,自动生成喂养参数智能喂养,还有宠物陪伴功能,在太阳较好时可以用太阳能充电提供电源,较好地解决了家中无人时的宠物喂养问题.
上传时间: 2022-03-28
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本设计介绍了一种基于STM32单片机控制的智能水杯,可利用插口式电源或无线充电底座为加热器提供能量,并在达到某种饮品所需温度时进行保温。水杯内置充电电池,可选用USB接口或无线充电。在水杯内部设置无线模块,用户利用手机App与水杯进行匹配进行加热操作,加热完后水杯会通过手机App和液晶显示屏实时反馈液体温度,通过指示灯显示电量情况等,给用户进行提醒。该智能水杯设计创新,实用价值较高。This paper introduces an intelligent water cup based by STM32 microcontroller,it can provide energy for the heater by socket type power supply or wireless charging base,and hold temperature needed for some kind of drink.Builtedin rechargeable battery,water cup can use USB or wireless charging.The wireless module is set up inside it,and customers can use mobile App to match and heat.After heating,water cup feeds back liquid temperature through the mobile App,and then displays on LCD,reminds users through the indicator light.The intelligent water cup is designed innovatively and has high practical value.
上传时间: 2022-03-28
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基于氮化镓MOS的高效PD协议智能充电器,超小体积超高效率,用于手机、pad、笔记本电脑的充电。
标签: 充电器
上传时间: 2022-03-28
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近距电能传输——高效安全近距电能传输一般基于电磁感应原理进行。在此技术基础上,当接收器邻近发射器时才会进行电能传输。电磁感应技术的历史长达百年,多年米一直应用于各类电子产品中—如此普及全因其简单、高效以及安全技术概览以下将为你简要介绍无线电能传输技术。System Overview(Communication)Receiver sends messagesTo provide control information to the transmitterBy load modulation on the power signaTransmitter receives messagesTo receive control information frorn the recelverBy de-modulation of the reflected loadPower Pick Up( Receiver)Secondary coil (L Serial resonance capacitor (C) for efficient power transfer Parallel resonance capacitor(C, )for detection purposes Rectifier: full bridge(diode, or switched)+ capacitor Output switch for(dis)connecting the loadReceiver modulates load by Switching modulation resistor(R,n),or Switching modulation capacitor(Ca)Transmitter de-modulates reflected load by Sensing pnmary coil curent (p)and/o Sensing primary coil voltage (V,
上传时间: 2022-03-31
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