The invention provides a detection circuit for abnormity of a control guide point in a direct-current charging pile, which is electrically connected with a control guide signal generation circuit and a control circuit, and is used for detecting an abnormal state when an electric vehicle is electrically connected with the direct-current charging pile and providing real-time protection for the direct-current charging pile. The detection circuit comprises: a control guide signal potential discrimination module; the charging and discharging module is electrically connected with the control guide signal potential judgment module; the controller protection trigger module is electrically connected with the charging and discharging module; wherein the control guide signal potential judgment module judges the voltage level of the input control guide signal so as to start the charging and discharging module to charge the control guide signal output by the control guide signal potential judgment module to a voltage value higher than a preset steady-state voltage value within a preset time period; therefore, the controller protection trigger module is started to provide real-time protection for the direct-current charging pile.
本发明提出一种用于直流充电桩中控制导引点异常的侦测电路,与控制导引信号生成电路以及控制电路电性连接,提供当该电动车辆与该直流充电桩电性连接时异常状态侦测并对该直流充电桩提供实时保护,该侦测电路包括:一控制导引信号电位判别模块;一充放电模块电性连接该控制导引信号电位判别模块;以及一控制器保护触发模块电性连接该充放电模块;其中上述控制导引信号电位判别模块判别输入的该控制导引信号的电压准位,以启动该充放电模块使其将经由该控制导引信号电位判别模块输出的该控制导引信号于一预设的时间段之内充电至高于一预设稳态电压值,以启动该控制器保护触发模块对该直流充电桩提供实时保护。
Detection circuit for controlling abnormity of guide point in direct current charging pile
直流充电桩中控制导引点异常的侦测电路
2023-10-24
Patent
Electronic Resource
Chinese
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