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    • 3. 发明授权
    • Battery charging method
    • 电池充电方式
    • US07408325B2
    • 2008-08-05
    • US11007172
    • 2004-12-09
    • Hiroyoshi YamamotoMasao YamaguchiMikitaka Tamai
    • Hiroyoshi YamamotoMasao YamaguchiMikitaka Tamai
    • H02J7/00
    • H02J7/0016
    • A battery charging method that detects the voltage of each series-connected battery, discharges batteries with voltage exceeding a prescribed voltage, and charges a plurality of batteries while maintaining cell balance. This charging method detects the voltage of each battery being charged and if any battery voltage exceeds the prescribed voltage, only the battery that exceeds the prescribed voltage is discharged, after a specified charging time, until its voltage drops to the prescribed voltage. Batteries that do not exceed the prescribed voltage are not discharged, and thereby all batteries are charged while balancing their voltages.
    • 一种电池充电方法,其检测每个串联电池的电压,对超过规定电压的电池进行放电,同时对多个电池进行充电,同时保持电池的平衡。 这种充电方法检测每个正在充电的电池的电压,如果任何电池电压超过规定的电压,则只有超过规定电压的电池在指定的充电时间之后被放电,直到电压下降到规定的电压。 不超过规定电压的电池不会放电,因此所有电池在电压平衡时都被充电。
    • 5. 发明申请
    • Power supply apparatus
    • 电源设备
    • US20050140334A1
    • 2005-06-30
    • US11020032
    • 2004-12-23
    • Mikitaka TamaiHiroyoshi YamamotoMasao Yamaguchi
    • Mikitaka TamaiHiroyoshi YamamotoMasao Yamaguchi
    • H02J7/02H01M10/44H02J7/00H02J7/04
    • H02J7/0019
    • A battery pack includes a discharge current interruption FET which cuts off the discharge current, and a minimum voltage detecting portion which switches the discharge current interruption FET from ON to OFF state when the voltage of any battery becomes lower than a minimum voltage. The charge circuit includes a charge current switching portion which switches the charge current so as to charge the battery pack in a main charge mode when the output voltage is higher than a prescribed voltage, and in a preliminary charge mode with a small current when the output voltage is lower than the prescribed voltage. The charge current switching portion charges the battery pack in the preliminary charge mode in the state where the OFF signal of the discharge current interruption FET is provided, even in the state where the output voltage of the battery pack is higher than the prescribed voltage.
    • 电池组包括截止放电电流的放电电流中断FET,以及当任何电池的电压变得低于最小电压时,将放电电流中断FET从导通切换到截止状态的最小电压检测部。 充电电路包括充电电流切换部分,其在输出电压高于规定电压时切换充电电流以便以主充电模式对电池组充电,并且在输出时具有小电流的初步充电模式 电压低于规定电压。 即使在电池组的输出电压高于规定电压的状态下,充电电流切换部在提供放电电流中断FET的OFF信号的状态下的初步充电模式下对电池组充电。
    • 6. 发明授权
    • Power supply apparatus
    • 电源设备
    • US07528578B2
    • 2009-05-05
    • US11020032
    • 2004-12-23
    • Mikitaka TamaiHiroyoshi YamamotoMasao Yamaguchi
    • Mikitaka TamaiHiroyoshi YamamotoMasao Yamaguchi
    • H02J7/00
    • H02J7/0019
    • A battery pack including a discharge current interruption FET which cuts off the discharge current, and a minimum voltage detecting portion which switches the discharge current interruption FET from ON to OFF state when the voltage of any battery becomes lower than a minimum voltage. The charge circuit includes a charge current switching portion which switches the charge current so as to charge the battery pack in a main charge mode when the output voltage is higher than a prescribed voltage, and in a preliminary charge mode with a small current when the output voltage is lower than the prescribed voltage. A charge current switching portion charges the battery pack in the preliminary charge mode in the state where the OFF signal of the discharge current interruption FET is provided, even in the state where the output voltage of the battery pack is higher than the prescribed voltage.
    • 一种包括截止放电电流的放电电流中断FET的电池组,以及当任何电池的电压变得低于最小电压时,将放电电流中断FET从导通切换到截止状态的最小电压检测部。 充电电路包括充电电流切换部分,其在输出电压高于规定电压时切换充电电流以便以主充电模式对电池组充电,并且在输出时具有小电流的初步充电模式 电压低于规定电压。 即使在电池组的输出电压高于规定电压的状态下,充电电流切换部分也在设置放电电流中断FET的OFF信号的状态下对初始充电模式进行充电。
    • 7. 发明授权
    • Remaining battery capacity computation system
    • 剩余电池容量计算系统
    • US06975095B2
    • 2005-12-13
    • US10720090
    • 2003-11-25
    • Kozo OoiMasao YamaguchiMikitaka Tamai
    • Kozo OoiMasao YamaguchiMikitaka Tamai
    • G01R31/36H01M2/10H01M10/42H01M10/48H02J7/00
    • G01R31/3613G01R31/3655H02J2007/005
    • The remaining battery capacity computation system has a remaining capacity computation apparatus, which is connected to an electrical equipment unit via a one line communication circuit. The connected electrical equipment unit transmits a detected current signal, that indicates current flowing in the battery, at a fixed transmission period to the remaining capacity computation apparatus via the communication circuit. The remaining capacity computation apparatus computes remaining battery capacity from the detected current, and outputs a signal, that indicates the computed remaining capacity, with prescribed timing to the communication circuit. The remaining capacity signal is transmitted to the connected electrical equipment unit and timed after completion of the output of one detected current signal and before commencement of the output of the next detected current signal.
    • 剩余电池容量计算系统具有通过单线通信电路连接到电气设备单元的剩余容量计算装置。 所连接的电气设备单元经由通信电路以固定的传输周期向电池剩余容量计算装置发送指示电池中流动的电流的检测电流信号。 剩余容量计算装置从检测到的电流计算剩余电池容量,并将指定计算剩余容量的信号以规定的定时输出到通信电路。 剩余容量信号被发送到连接的电气设备单元,并且在完成一个检测到的电流信号的输出之后并且在下一个检测到的电流信号的输出开始之前被定时。