The invention provides a battery switch-free anti-sparking protection method and circuit. The method comprises the following steps: acquiring the voltage of a main discharge loop and a pre-discharge loop of the battery; presetting a comparison voltage; when the battery is not installed, and the voltage of the main discharge loop and the voltage of the pre-discharge loop are both 0V and are both lower than the comparison voltage, at the moment, outputting a low level to the main discharge loop, and outputting a high level to the pre-discharge loop; after a battery is connected, when the voltage of the pre-discharge loop is increased to be greater than the comparison voltage, outputting a high level to the main discharge loop, and outputting a low level to the pre-discharge loop; and when the battery is converted into a static process from a riding process after being loaded for a period of time and has no current of the main discharge loop and the voltage of the main discharge loop is reduced to be lower than the preset voltage, outputting a low level to the main discharge loop and outputting a high level to the pre-discharge loop at the moment. During discharging, the main discharge loop and the pre-discharge loop are distinguished through the current detection resistor, and the problem that part of devices are damaged due to sparking generated by a power source is solved.
本发明提供一种电池无开关防打火保护方法和电路,方法获取电池的主放电回路和预防电回路的电压;预设比较电压;当电池没有安装时,主放电回路和预防电回路的电压均为0V,均低于所示比较电压,此时对主放电回路输出低电平,对预放电回路输出高电平;当接上电池后,预防电回路的电压增大至比所述比较电压更大时,此时对主放电回路输出高电平,对预放电回路输出低电平;当电池装车后由骑行转为静止过程,持续一段时间无主放电回路电流时,主放电回路的电压降低至低于所述预设电压时,此时对主放电回路输出低电平,对预放电回路输出高电平。本发明在放电时通过检流电阻来区分主放电回路和预放电回路,避免电源产生打火导致部分器件损坏的问题。
Battery switch-free anti-sparking protection method and circuit
一种电池无开关防打火保护方法和电路
2021-12-31
Patent
Elektronische Ressource
Chinesisch
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