Other Parts Discussed in Thread: BQ769142,
我用的是BQ769142,如下接法,目前只接10串。
采样结果是前9串有值且正确,第10串,是在第VC16上并且VC16采样大了1V,总压也大1V。
Vcell mode 我配置成了0x3fff时,发现报欠压保护,实际上并没有欠压。
Vcell mode 我配置成了0x81ff时,VC16上过压,没有报出来。
请问,这种接法应该怎么配置Vcell mode,遵循什么规则
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更正一下是:Vcell mode 我配置成了0x3ff时,发现报欠压保护,实际上并没有欠压。
嗯,我目前就是按照10串去接的电池,Vcell mode 配置成0x81ff。但是今天遇到另外一个问题,不知道有没有什么联系。
如图所示:
上图是alert引脚的信号,每个10S会有脉冲。经过不同尝试总结下来
所以:通信,CUV,alert是三者一个怎样关系?怎么配置即能正常保护,且能保持在休眠状态,遇到真正保护后再发送alert信号。
您好,请参考下面的内容
This document might be helpful: https://www.ti.com/lit/an/slua991a/slua991a.pdf See section 2.7 on configuring the Alert pin. The Alert pin will still work in Sleep mode.
There is also example microcontroller code available for download in the BQ76952 product page and there is a video on how to configure the device using a microcontroller that covers settings for the Alert pin: https://www.youtube.com/watch?v=RfyzTKTLQCM