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    • 1. 发明授权
    • Atmospheric explosive battery protection circuit having a robust protection system
    • 大气爆炸电池保护电路具有强大的保护系统
    • US07068012B1
    • 2006-06-27
    • US11169837
    • 2005-06-29
    • Michael D. GerenJennifer K. CollierJohn E. Herrmann
    • Michael D. GerenJennifer K. CollierJohn E. Herrmann
    • H01M10/46
    • H01M10/443H01M2/348H01M10/48H02J7/0031
    • A battery protection circuit is provided that includes current monitoring circuit. The current monitoring circuit senses current flowing from a rechargeable cell. When the current exceeds a maximum value, the current monitoring circuit actuates, whereby opening a transistor. The transistor has a resistor coupled in parallel. When the transistor opens, current is forced through the resistor coupled in parallel with the transistor, thereby limiting the current to a maximum value. When the voltage across the resistor exceeds a predetermined threshold, an overcurrent condition is simulated in the lithium ion protection IC. The overcurrent condition causes a disconnect switch to open, thereby disconnecting the cell(s) from the external terminals. The circuit additionally includes three current blocking elements coupled between charging terminals and the cells to ensure that fault conditions occurring within the charger do not adversely affect the performance of either the cells or a host electronic device.
    • 提供了包括电流监视电路的电池保护电路。 电流监视电路感测从可再充电电池流出的电流。 当电流超过最大值时,电流监控电路启动,由此打开晶体管。 晶体管具有并联耦合的电阻器。 当晶体管断开时,电流被强制通过与晶体管并联耦合的电阻,从而将电流限制到最大值。 当电阻上的电压超过预定阈值时,在锂离子保护IC中模拟过电流条件。 过电流状态导致断开开关断开,从而将电池从外部端子断开。 电路还包括耦合在充电端子和电池之间的三个电流阻塞元件,以确保在充电器内发生的故障状况不会不利地影响电池或主机电子设备的性能。
    • 6. 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。