The battery charge/discharge monitor

Published:2011/7/23 21:29:00 Author:qqtang | Keyword: charge/discharge monitor | From:SeekIC

Here is to introduce a battery charge/discharge monitor which indicates the battery charge/discharge state with the 3R LED VL. The circuit is simple.The working principle of the circuitThe battery charge/discharge monitor circuits consist of the resistors R1-R4, LED VLl-VL3, regulator diodes VSl-VS3 and switch S, see as figure 7-52. When charging, the voltage of VLl-VL3 on the battery terminal is rising to 16.2V, the indicators are all glowing, which means the battery is full and the charge current should be cut off or reduced.



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