Automotive power systems are unforgiving electronicenvironments. Transients to 90V can occur when thenominal voltage range is 10V to 15V (ISO7637), along withbattery reversal in some cases. It’s fairly straightforwardto build automotive electronics around this system, butincreasingly end users want to operate portable electronics,such as GPS systems or music/video players,and to charge their Li-Ion batteries from the automotivebattery. To do so requires a compact, robust, effi cientand easy-to-design charging system
上传时间： 2013-11-04
上传用户：wfl_yy
The LTC®4099 high effi ciency USB power manager andLi-Ion/Polymer battery charger seamlessly managespower distribution from multiple sources in portableapplications. It is differentiated from other USB powermanagers by its bidirectional I2C port that allows the hostmicroprocessor to control and monitor all aspects of theUSB power management and battery charging processes.In addition, a programmable interrupt generation functionalerts the host microprocessor to changes in device statusand provides unprecedented control of power managementfunctions. This high degree of confi gurability allowspost-layout changes in operation, even changes in thefi eld, and it allows a single qualifi ed device to be usedin a variety of products, thus reducing design time andeasing inventory management.
上传时间： 2013-10-22
上传用户：18602424091
USB转CAN上位机软件
上传时间： 2013-10-24
上传用户：1214209695
USB总线转接芯片CH341中文手册
上传时间： 2014-01-25
上传用户：Zero_Zero
1. 支持USB1.1或USB2.0通信； 2. 全面支持WIN98、WINME、WIN2000、WINXP、VISTA、WIN7等操作系统； 3. 采用USB口供电，板内带有500mA自恢复保险丝或保险电阻，保护电脑主板不被意外烧毁； 4. 在对芯片编程时可以使用目标系统本身电源，也可以使用编程器从USB口取电供给目标板，但应保证目标标电流不大于500mA，以免不能正常编程； 5. 编程完成不影响目标板的程序运行； 6. 支持STC全系列芯片烧录； 7. 编程器提供3.3V与5V的电压输出接口； 8. 速度比并口编程更快更稳定，更方便笔记本电脑用户使用； 9. 采用进口原装芯片，能进行高速稳定编程；
上传时间： 2013-11-06
上传用户：新手无忧
关于STM32的USB应用方面的知识
上传时间： 2013-11-10
上传用户：wojiaohs
USB接口波形发生器
上传时间： 2013-11-20
上传用户：jackandlee
STM32 USB Mass Storage学习资料.pdf
上传时间： 2013-10-31
上传用户：gxmm
单片机读写usb、sd卡技术参考资料
上传时间： 2013-10-19
上传用户：松毓336
基于无线USB技术的系统开发与应用
上传时间： 2013-11-21
上传用户：teddysha
