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    • 8. 发明授权
    • Apparatus and method for balancing of battery cell'S charge capacity
    • 用于平衡电池电池容量的装置和方法
    • US08054044B2
    • 2011-11-08
    • US12444712
    • 2008-07-28
    • Ju-Hyun KangDo-Youn KimSang-Hoon Lee
    • Ju-Hyun KangDo-Youn KimSang-Hoon Lee
    • H02J7/00
    • H02J7/0016Y02T10/7055
    • An apparatus for balancing charge capacity of battery cell includes a voltage sensing/discharging circuit having a battery with cell group, a switching unit for selectively connecting both terminals of each battery cell to conductive lines, capacitor connected to the conductive lines, a voltage amplifying unit connected to both terminals of capacitor via a first switch, and a discharge resistance connected to both terminals of capacitor via a second switch; and a voltage balancing unit for controlling the switching unit in ON state of first switch to connect both terminals of each battery cell to the conductive lines and then sense voltage of each battery cell through the voltage amplifying unit, and controlling the switching unit in OFF state of first switch to charge voltage of balancing-requiring cell to the capacitor and then turning on the second switch to discharge charged voltage of capacitor through the discharge resistance.
    • 用于平衡电池单元的充电容量的装置包括具有电池组的电压感测/放电电路,用于选择性地将每个电池单元的端子与导线相连的开关单元,连接到导线的电容器,电压放大单元 经由第一开关连接到电容器的两个端子,以及经由第二开关连接到电容器两端的放电电阻; 以及电压平衡单元,用于将开关单元控制在第一开关的接通状态,以将每个电池单元的两个端子连接到导线,然后通过电压放大单元感测每个电池单元的电压,并将开关单元控制在OFF状态 首先切换到平衡需求单元的电荷到电容器,然后接通第二开关以通过放电电阻放电电容器的充电电压。