The embodiment of the invention provides a power management system, an MCU, a BMS and a battery, which can meet the power supply requirement of the MCU and have higher reliability. The power management system comprises a primary power supply module which is connected with a power supply and is used for generating a first voltage according to the voltage of the power supply, diagnosing the first voltage and storing a diagnosis result of the first voltage; the secondary power supply module is connected with the primary power supply module and used for generating a second voltage according to the first voltage, the second voltage is smaller than the first voltage, and the second voltage is the working voltage of the MCU; and the MCU is connected with the primary power supply module and the secondary power supply module and is used for reading the diagnosis result of the first voltage from the primary power supply module and determining whether to control the BMS to enter a safe state or not according to the diagnosis result of the first voltage.
本申请实施例提供一种电源管理系统、MCU、BMS和电池,能够满足MCU的供电需求,并具有更高的可靠性。所述电源管理系统包括:一级供电模块,与电源连接,用于根据所述电源的电压生成第一电压,对所述第一电压进行诊断,并存储所述第一电压的诊断结果;二级供电模块,与所述一级供电模块连接,用于根据所述第一电压生成第二电压,所述第二电压小于所述第一电压,所述第二电压为MCU的工作电压;以及所述MCU,与所述一级供电模块和所述二级供电模块连接,用于从所述一级供电模块读取所述第一电压的诊断结果,并根据所述第一电压的诊断结果确定是否控制BMS进入安全状态。
Power management system, micro-control unit, battery management system and battery
电源管理系统、微控制单元、电池管理系统和电池
2023-07-18
Patent
Electronic Resource
Chinese
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