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Battery fast charge circuit composed of BQ2002 battery fast

2016-05-12 00:43  
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Battery fast charge circuit composed of BQ2002 battery fast charge control integrated circuit
Transformer, diode and steady voltage IC7805 provide this circuit with +5V power voltage, the power voltage is divided by R5, R6 then transported to the BAT terminal of chip, it provides sample voltage. The resistance inputed from reststance partial pressure network to BAT terminal should not be lower than 200kΩ. When TM terminal is grounding, the fast charge rate is 1C, the fast charge supplementary time is 80min.