為了實(shí)現(xiàn)直流電源的監(jiān)控,提出了一種具有USB HID數(shù)據(jù)通信功能的直流電源設(shè)計(jì)方案。詳細(xì)論述了基于STM32 USB固件庫(kù)(USB-FS Device library V3.3)的自定義HID類下位機(jī)的實(shí)現(xiàn),介紹了如何在VC2010集成開發(fā)環(huán)境中編寫多線程上位機(jī)程序并運(yùn)用PlotLab(一個(gè)快速信號(hào)繪圖和可視化的VCL組件)顯示實(shí)時(shí)波形,最后再以實(shí)驗(yàn)開發(fā)板和PC實(shí)現(xiàn)了HID數(shù)據(jù)通信,證明了此監(jiān)控設(shè)計(jì)方案的可行性。
標(biāo)簽: USB HID 數(shù)據(jù)通信 直流電源
上傳時(shí)間: 2013-10-17
上傳用戶:13162218709
USB充電自動(dòng)識(shí)別芯片,支持Apple手機(jī),電流可達(dá)2A。
上傳時(shí)間: 2013-11-25
上傳用戶:dancnc
德州儀器微小型電源電路顯著簡(jiǎn)化USB電池充電器設(shè)計(jì)
標(biāo)簽: USB 德州儀器 充電器設(shè)計(jì) 電源電路
上傳時(shí)間: 2014-12-24
上傳用戶:浩子GG
Linear Technology offers a variety of devices that simplifyconverting power from a USB cable, but the LTC®3455represents the highest level of functional integration yet. The LTC3455 seamlessly manages power flowbetween an AC adapter, USB cable and Li-ion battery,while complying with USB power standards, all from a4mm × 4mm QFN package. In addtion, two high efficiencysynchronous buck converters generate low voltage railswhich most USB-powered peripherals require. TheLTC3455 also provides power-on reset signals for themicroprocessor, a Hot SwapTM output for poweringmemory cards as well as an uncommitted gain blocksuitable for use as a low-battery comparator or an LDOcontroller. The PCB real estate required for the entire USBpower control circuit and two DC/DC converters is only225mm2.
上傳時(shí)間: 2013-11-02
上傳用戶:名爵少年
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.
上傳時(shí)間: 2013-10-22
上傳用戶:18602424091
USB轉(zhuǎn)CAN上位機(jī)軟件
上傳時(shí)間: 2013-10-24
上傳用戶:1214209695
USB總線轉(zhuǎn)接芯片CH341中文手冊(cè)
上傳時(shí)間: 2014-01-25
上傳用戶:Zero_Zero
1. 支持USB1.1或USB2.0通信; 2. 全面支持WIN98、WINME、WIN2000、WINXP、VISTA、WIN7等操作系統(tǒng); 3. 采用USB口供電,板內(nèi)帶有500mA自恢復(fù)保險(xiǎn)絲或保險(xiǎn)電阻,保護(hù)電腦主板不被意外燒毀; 4. 在對(duì)芯片編程時(shí)可以使用目標(biāo)系統(tǒng)本身電源,也可以使用編程器從USB口取電供給目標(biāo)板,但應(yīng)保證目標(biāo)標(biāo)電流不大于500mA,以免不能正常編程; 5. 編程完成不影響目標(biāo)板的程序運(yùn)行; 6. 支持STC全系列芯片燒錄; 7. 編程器提供3.3V與5V的電壓輸出接口; 8. 速度比并口編程更快更穩(wěn)定,更方便筆記本電腦用戶使用; 9. 采用進(jìn)口原裝芯片,能進(jìn)行高速穩(wěn)定編程;
標(biāo)簽: USB-TTL STC 新思科電子 單片機(jī)燒錄
上傳時(shí)間: 2013-11-06
上傳用戶:新手無(wú)憂
關(guān)于STM32的USB應(yīng)用方面的知識(shí)
上傳時(shí)間: 2013-11-10
上傳用戶:wojiaohs
USB接口波形發(fā)生器
上傳時(shí)間: 2013-11-20
上傳用戶:jackandlee
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