The embodiment of the invention discloses a switching circuit and an energy storage power supply. The circuit comprises a first power supply switch module, a second power supply switch module and a control module, wherein the first power supply switch module is used for controlling on-off of power supply of an auxiliary source circuit; the voltage detection module is used for outputting a driving signal to the first power supply switch module when the input voltage of the automobile storage battery is lower than a first preset voltage, so that the first power supply switch module is switched on, and outputting a trigger signal to the delay protection module; and the delay protection module is used for outputting a protection signal to the first power supply switch module when the duration of receiving the trigger signal exceeds a first preset time, so that the first power supply switch module is disconnected, and the first preset time is longer than the time for recovering the input voltage to the first preset voltage. According to the embodiment of the invention, the voltage detection module outputs the trigger signal to conduct the power supply switch module, so that the input power supply supplies power to the auxiliary source circuit; and a delay protection module is arranged to quickly turn off the power supply switch module, so that the power waste is avoided and the output is still kept when the power is insufficient.
本发明实施方式公开了一种开关电路和储能电源,该电路包括:用于控制辅源电路的供电通断的第一供电开关模块;用于在汽车电瓶的输入电压低于第一预设电压时输出驱动信号至第一供电开关模块,以使第一供电开关模块导通,以及输出触发信号至延时保护模块的电压检测模块;用于在收到触发信号的持续时间超过第一预设时间时,输出保护信号至第一供电开关模块,以使第一供电开关模块断开的延时保护模块,第一预设时间大于输入电压恢复到第一预设电压所用时间。本发明实施方式由电压检测模块输出触发信号使供电开关模块导通,进而使输入电源为辅源电路供电;并设置延时保护模块,以快速关断供电开关模块,避免电量浪费以及亏电时仍保持输出。
Switching circuit and energy storage power supply
一种开关电路和储能电源
2025-02-21
Patent
Electronic Resource
Chinese
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