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Singlechip storage battery monitor circuit based on PIC12C5

2016-05-10 04:09  
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Singlechip  storage battery monitor circuit based on PIC12C508
Brief Introduction Normally, its rating value is 12V in 12V lead acid storage battery of trucks, cars, entertainment cars and uninterruptible power supply. This circuit monitors battery, charging and discharging curve, and it gives present voltage value and predicts the leavings time to supply end. The voltage is 13.8V when 12V battery is fully charged, and it is 10.8V when 12V battery is fully released. It is linear in 3V range. It can use to predict the time value UPS The diagram explains one bit A/D converter. It storages high, low and open three states in the resistor of single chip’s GP0, GP1, GP2, and GP4 pins. It allows GP3 input end as voltage comparator. The circuit diagram: