“Microduino-Module BM Li-ion/zh”的版本间的差异
第173行: | 第173行: | ||
*锂电池充电 | *锂电池充电 | ||
*锂电池升压给Microduino核心供电 | *锂电池升压给Microduino核心供电 | ||
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+ | ==问题解答== | ||
+ | *这个模块可以给micorduino的其他模块供电吗? | ||
+ | **大部分模块都可以,除了个别功耗比较大的模块,比如GPRS 模块,不建议使用BM为其供电。 | ||
+ | *可以用BM 和USB 模块'''同时'''给Microduino模块供电吗? | ||
+ | **不建议这样使用'''(我们的新板BM即将支持UPS)'''。 | ||
+ | *这个模块是可编程的吗,通过程序来设定其状态? | ||
+ | **不可编程控制。 | ||
+ | *最大输出电压,电流范围? | ||
+ | **5V/500mA。 | ||
+ | *此模块可以给锂电池充电吗? | ||
+ | **可以。 | ||
+ | *有没有直接安装锂电池的模块? | ||
+ | **没有。 | ||
+ | *可以使用旧的手机理电池吗? | ||
+ | **可以。 | ||
+ | *BM 模块能和USB2TTL一起工作,给core模块供电吗? | ||
+ | **理论上是可以的,USB2TTL还可以用于下载程序。 | ||
==购买== | ==购买== |
2014年7月31日 (四) 15:55的版本
Language | English |
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特色
规格
充电
放电
电量检测
待机
文档Eagle PCB 文件:Microduino-BM.zip 主要元件
开发
应用When viewing the board with the battery connector and switches closest to you, with the component side up, the battery connector positive (+) pin is on the left and the ground (-) pin is on the right. The pushbutton switch is on the left and the mode switch (IN = Charge, lever to the left; OUT = Discharge, lever to the right) is on the right. After connecting the battery you must momentarily push the pushbutton switch to start the converter. You can stop the converter/turn off the power by unplugging the battery or by pressing and holding the pushbutton for a few seconds. To use the battery to generate +5 VDC and +3.3 VDC, set the mode switch (to the right of the battery connector when viewed as described above) to OUT (switch lever away from the battery connector). The IN position is used for charging the battery from an external 5VDC, >=600 mA source. The charging current is 500 mA, so I recommend a battery with at least 500 mAH of capacity to avoid charging at a rate >1C. A rough English translation of the charging process is as follows:
The LED indications seem to be as follows, based on how Google Translate translates the Chinese datasheet for the HOTCHIP HT4901 at http://www.hotchip.com.cn/DownFiles/20131126090806453.pdf: Discharge Mode
If the voltage drops below 3.2V, LED1 flashes and within 5 seconds the HT4901 goes to standby mode (I think... or should I say I hope...) to avoid over-discharging your battery. Charge Mode
Be prepared to terminate the charging process immediately when all four LEDs are on and steady. Overcharging lithium-type batteries may result in a nasty fire. I don't know how good the HT4901 is at detecting that the charging process is complete and shutting off the charging current to the battery. Hope I correctly translated this information. /Chip 其它应用:
问题解答
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