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    • 8. 发明授权
    • Equalizer system and method for series connected energy storing devices
    • 串联连接储能装置的均衡系统及方法
    • US5952815A
    • 1999-09-14
    • US900607
    • 1997-07-25
    • Jean RouillardChristophe ComteRonald A. HagenOrlin B. KnudsonAndre MorinGuy Ross
    • Jean RouillardChristophe ComteRonald A. HagenOrlin B. KnudsonAndre MorinGuy Ross
    • H02J7/02H02J7/00H02J7/34
    • H02J7/0021H02J7/0016
    • An apparatus and method for regulating the charge voltage of a number of electrochemical cells connected in series is disclosed. Equalization circuitry is provided to control the amount of charge current supplied to individual electrochemical cells included within the series string of electrochemical cells without interrupting the flow of charge current through the series string. The equalization circuitry balances the potential of each of the electrochemical cells to within a pre-determined voltage setpoint tolerance during charging, and, if necessary, prior to initiating charging. Equalization of cell potentials may be effected toward the end of a charge cycle or throughout the charge cycle. Overcharge protection is also provided for each of the electrochemical cells coupled to the series connection. During a discharge mode of operation in accordance with one embodiment, the equalization circuitry is substantially non-conductive with respect to the flow of discharge current from the series string of electrochemical cells. In accordance with another embodiment, equalization of the series string of cells is effected during a discharge cycle.
    • 公开了一种用于调节串联连接的多个电化学电池的充电电压的装置和方法。 提供均衡电路以控制提供给包括在串联电化学电池组内的各个电化学电池的充电电流量,而不中断通过串联串的充电电流的流动。 均衡电路在充电期间平衡每个电化学电池的电位到预定的电压设定值容限内,并且如果需要,在开始充电之前将其平衡。 可以在充电循环结束或整个充电循环期间实现电池电位的均衡。 对于耦合到串联连接的每个电化学电池,也提供过充电保护。 在根据一个实施例的放电操作模式期间,均衡电路相对于来自串联的电化学电池单元的放电电流的流动基本上不导通。 根据另一个实施例,在放电周期期间实现串联串联电池的均衡。