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    • 4. 发明授权
    • Power fault battery protection circuit
    • 电源故障电池保护电路
    • US06903533B1
    • 2005-06-07
    • US10737021
    • 2003-12-16
    • Michael D. GerenRoger L. BoyerJohn E. HerrmannJenny Collier
    • Michael D. GerenRoger L. BoyerJohn E. HerrmannJenny Collier
    • H02J7/00
    • H02J7/0031H02J2007/0039
    • A battery protection circuit is provided that includes a safety circuit and an overpower circuit. The safety circuit monitors the voltage and current of at least one rechargeable cell within the battery pack, and disconnects the cell(s) from the external terminals of the battery pack when either the voltage becomes too high or low, or when excessive current is being drawn from the battery pack. The overpower circuit monitors the power being delivered to or sourced from the battery pack to the load. The overpower circuit actuates when the power exceeds a predetermined threshold, thereby simulating an overcurrent condition in the safety circuit. The overcurrent condition causes a disconnect means, like a transistor, to open, thereby disconnecting the cell(s) from the external terminals. The battery protection circuit then latches in this disconnected state until a load is removed from the terminals of the battery pack.
    • 提供一种电池保护电路,其包括安全电路和过功率电路。 安全电路监视电池组内的至少一个可再充电电池的电压和电流,并且当电压变得过高或过低时,或者当电流过大时,将电池从电池组的外部端子断开 从电池组中抽出。 过功率电路监测从电池组输送或从电池组提供给负载的电力。 当功率超过预定阈值时,过功率电路启动,从而模拟安全电路中的过电流状况。 过电流状态导致诸如晶体管的断开装置打开,从而将电池从外部端子断开。 然后电池保护电路锁定在该断开状态,直到从电池组的端子移除负载。