The invention provides a battery sampling circuit, a battery management system and a power battery, and the battery sampling circuit comprises a battery cell collection chip; the battery monomer acquisition circuit is connected between the battery monomer acquisition chip and the battery monomer, and the battery monomer acquisition circuit is provided with a sampling resistor; the power supply circuit is used for supplying power to the battery monomer acquisition chip and is connected between the battery monomer acquisition chip and the battery module, the power supply circuit is provided with a current-limiting resistor, and a plurality of battery monomers form the battery module; and the high-frequency high-voltage pulse protection device is arranged on the power supply line and is positioned between the battery module and the current-limiting resistor. According to the invention, burnout of the BMS circuit board by high-frequency high-voltage pulses can be reduced or avoided, and the safety of the BMS circuit board
本发明提供了一种电池采样电路、电池管理系统及动力电池,其中,电池采样电路包括:电池单体采集芯片;电池单体采集线路,连接在电池单体采集芯片与电池单体之间,电池单体采集线路具有采样电阻;为电池单体采集芯片供电的供电线路,连接在电池单体采集芯片与电池模组之间,供电线路具有限流电阻,其中,多个电池单体组成电池模组;设置在供电线路上的高频高压脉冲保护器件,高频高压脉冲保护器件位于电池模组与限流电阻之间。本发明能够减少或规避高频高压脉冲烧坏BMS电路板,提升BMS电路板的安全性。
Battery sampling circuit, battery management system and power battery
电池采样电路、电池管理系统及动力电池
2022-11-29
Patent
Elektronische Ressource
Chinesisch
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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