Lead-acid storage battery charging management system
A lead-acid storage battery, charge management technology, applied in secondary battery charging/discharging, battery circuit devices, battery/fuel cell control devices, etc., can solve problems such as fire, battery pack filling, unable to turn lights, etc., to improve The effect of service life
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[0021] see figure 1 , figure 2 , image 3 and Figure 4 , This embodiment provides a lead-acid battery charging management system, including a battery protector, the battery protector is provided with a circuit board 2, and the circuit board 2 is provided with a DCDC voltage conversion circuit, a charging control circuit, a charging socket 23, and a battery socket 22. and several temperature sensors 21, the DCDC voltage conversion circuit includes a DCDC voltage conversion chip IC1 and a three-terminal voltage regulator U1, the DCDC voltage conversion circuit converts the battery pack voltage input by the input filter circuit into a 5V power supply voltage and transmits it to the charging control circuit, three The terminal voltage regulator U1 is connected with the control chip U2. The charging control circuit includes the control chip U2, the photocoupler PC1, and the power MOS tube QA1. The pin 8 of the control chip U2 is connected to the gate of the power MOS tube QA1 t...
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