BQ76952使用主机控制均衡,奇偶交错均衡,每10S切换一次奇偶均衡,均衡期间的采样大概是200ms左右采一次。
问题是:用作15串使用时,次高节被短接,当均衡第15串电芯(最高节)时,采样到的第14节电压会升高15mV左右,
等到均衡结束电压回落。16串的应用没有电压升高的现象,仅在15串应用上出现该情况,请专家帮忙分析。
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您好,请参考下面文档2.5 Voltage Measurement Accuracy During Balance
您好
The device might not have a settled RC response by the time it takes a measurement at VC14. Can they try keeping the C292 Capacitor? Maybe this will help with the settling time.
Remember the device does not balance and takes measurements at the same time, so RC constant must settle quickly enough before a measurement is taken. They can try monitoring this behavior in the scope and possibly see how settled the voltage is when the measurement is taken.