The invention relates to a vehicle, a power supply anti-reverse connection circuit and a method thereof, the circuit comprises a switch assembly, the switch assembly comprises an MOS tube and an ideal diode, the source electrode of the MOS tube and the anode of the ideal diode are connected with a power supply access node, the grid electrode of the MOS tube is connected with the driving output end of the ideal diode, and the driving output end of the ideal diode is connected with the power supply access node; the drain electrode of the MOS tube and the cathode of the ideal diode are connected with a load. The voltage acquisition assembly is used for acquiring the current voltage of the MOS tube; and the control assembly is respectively connected with the voltage acquisition assembly and the enabling end of the ideal diode, and when the control assembly judges that the current current flowing through the MOS tube is greater than the preset current according to the current voltage, the control assembly sends an enabling signal to the ideal diode so as to control the MOS tube to be disconnected through the ideal diode. Therefore, the power supply access condition is monitored in real time, and the circuit connection is quickly disconnected when the power supply is reversely connected, so that a post-stage circuit is effectively protected from being damaged, and the use efficiency and the safety of the vehicle power supply are improved.
本发明涉及一种车辆、电源防反接电路及其方法,其中,电路包括:开关组件,开关组件包括MOS管和理想二极管,MOS管的源极和理想二极管的阳极均与电源接入节点相连,MOS管的栅极与理想二极管的驱动输出端相连,MOS管的漏极和理想二极管的阴极均与负载相连;电压采集组件,用于采集MOS管的当前电压;控制组件,控制组件分别与电压采集组件和理想二极管的使能端相连,控制组件根据当前电压判定流过MOS管的当前电流大于预设电流时,发出使能信号至理想二极管,以通过理想二极管控制MOS管断开。由此,通过实时监测电源接入情况,并在电源反接时迅速断开电路连接,有效保护后级电路免受损坏,提升了车辆电源的使用效率及安全性。
Vehicle, power supply anti-reverse-connection circuit and method thereof
车辆、电源防反接电路及其方法
2024-09-03
Patent
Electronic Resource
Chinese
IPC: | H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / H04Q Wähltechnik , SELECTING |
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