请问镍氢的 -DV 是恒流充电时检测的,还是停掉电流间断检测的?
请问镍氢的 -DV 是恒流充电时检测的,还是停掉电流间断检测的? 恒流充电时检测 我认为是间断检测记得maxim 充电ic 的datasheet里是这么写的 间断的时候检测可以 短暂的暂停充电
恒流冲的时候检测 也是么得问题的 好像网站的开源充电器是恒流充电充电检测的。 CELL TEST is performed once every 31s during FAST-
CHARGE to determine if charging is complete. During
CELL TEST, the CS output is held high to prevent
charging. The cell’s voltage is measured and com-
pared against prior readings. The maximum cell volt-
age measurement during the charge is retained. If a
cell’s voltage falls more than 2mV (V-ΔV) from its peak
reading, the FAST-CHARGE terminates successfully
and moves to TOP-OFF. The DS2710 also moves to
TOP-OFF if the cell’s voltage reading does not exceed
the maximum over a 16min period (tFLAT). A hold-off
period for -ΔV and flat voltage detection begins at the
start of fast charging and prevents false termination in
the first 4min of the charge cycle (tTHO).
美信是停掉充电电流才检测的。 ding 我觉得应该是停掉电流检测,因为电池内阻会有影响 在控制恒流精度的条件下,尽量是带电流检测,否则只能断电检测。
因为一般带电流测量时,充电线路上产生的干扰,会影响检测值,这样反而不准。 掉电检测的效果就是脉冲充电。。。 可以去除极化。。。 我准备用STC12C5A60S2 搞个充电器。。。 嘿嘿! 跟恒不恒流没关系,要知道电池内阻跟线阻影响,如果充电时测根本测不出-的-d/V来的。 电池内阻有影响,最好是瞬关时检测,然后读值,再开。。
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