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    • 2. 发明授权
    • Dual battery pack charging in a computer system
    • 双电池组在计算机系统中充电
    • US5955867A
    • 1999-09-21
    • US902097
    • 1997-07-29
    • John A. CummingsBarry K. Kates
    • John A. CummingsBarry K. Kates
    • H02J7/00
    • H02J7/0024H02J7/0011
    • A system for charging dual battery packs. The system includes a charger for supplying current to charge a first battery pack when the first battery pack is electrically coupled to the computer system. The charger supplies current to charge a second battery pack when the second battery pack is electrically coupled to the computer system. The system also includes a charge controller, such as a keyboard controller executing a program stored in a memory, for controlling the charging of the first battery pack and the second battery pack such that the charger charges the first battery pack to a first level, the charger charges the second battery pack to a second level, and the charger simultaneously charges the first battery pack and the second battery pack when the first battery pack is charged above the first level and below a third level and the second battery pack is charged above the second level and below a fourth level. Each battery pack includes a processor, an associated memory, back to back FETs, and lithium ion cells.
    • 一种双电池充电系统。 当第一电池组电耦合到计算机系统时,该系统包括用于提供电流以对第一电池组充电的充电器。 当第二电池组电耦合到计算机系统时,充电器提供电流以对第二电池组充电。 该系统还包括充电控制器,例如执行存储在存储器中的程序的键盘控制器,用于控制第一电池组和第二电池组的充电,使得充电器将第一电池组充电到第一电平, 充电器将第二电池组充电到第二电平,并且当第一电池组被充电到高于第一电平并且低于第三电平并且第二电池组被充电到第一电池组以上时,充电器同时对第一电池组和第二电池组充电 二级以下四级以下。 每个电池组包括处理器,相关存储器,背对背FET和锂离子电池。
    • 4. 发明授权
    • Constant polarity input device including synchronous bridge rectifier
    • 恒定极性输入装置包括同步桥式整流器
    • US06181588B2
    • 2001-01-30
    • US09160831
    • 1998-09-25
    • Barry K. KatesJohn A. Cummings
    • Barry K. KatesJohn A. Cummings
    • H02M706
    • H02M7/219H02M2007/2195Y02B70/1408
    • A circuit including bridge rectifier, switches across one or more of the diodes of the bridge rectifier, and a comparator providing control signals to the switch or switches can be constructed to apply a constant polarity voltage to an electrical load, regardless of the polarity of the input power applied to the circuit. The comparator produces a control signal depending upon a comparison of the input power voltages, and the control signal activates one or more of the switches to allow current flow through an appropriate path in the circuit to yield the constant polarity across the electrical load. Thus, the circuit can protect the electrical load from an inappropriately applied voltage by switching the applied voltage's polarity. Because an activated switch can short a diode in the bridge rectifier, power loss associated with current flow through the diode is reduced. Additionally, the circuit can provide constant polarity across the electrical load with either AC or DC input power.
    • 包括桥式整流器的电路,跨越桥式整流器的一个或多个二极管的开关以及向开关或开关提供控制信号的比较器可以被构造成将恒定极性电压施加到电负载,而不管 施加到电路的输入功率。 比较器根据输入电源电压的比较产生控制信号,并且控制信号激活一个或多个开关以允许电流流过电路中的适当路径以产生电负载上的恒定极性。 因此,电路可以通过切换所施加的电压的极性来保护电负载免受不适当的施加电压。 因为激活的开关可能会使桥式整流器中的二极管短路,所以与通过二极管的电流相关的功率损耗降低。 另外,电路可以通过交流或直流输入功率在电负载上提供恒定的极性。
    • 7. 发明授权
    • Adaptive fast charging of lithium-ion batteries
    • 锂离子电池的自适应快速充电
    • US06137265A
    • 2000-10-24
    • US228465
    • 1999-01-11
    • John A. CummingsBarry K. Kates
    • John A. CummingsBarry K. Kates
    • H02J7/00H02J7/04
    • H02J7/0004H02J7/0093
    • Following the constant-current portion of a rechargeable battery charging scheme with repeated current pulses having a lower current value than that of the constant current portion, for at least part of the period of the pulse, can increase the amount of time that elapses before the voltage of the rechargeable battery is at or above a threshold voltage, thereby decreasing the total charge time for the rechargeable battery. Various current pulse shapes can be used to reduce the total charge time for the rechargeable battery, including, for example, a ramped pulse that begins at a low current level and increases over some or all of the period of the pulse, and a constant current pulse whose current level is reduced from that of the constant-current portion of the rechargeable battery charging scheme by a specified amount. The specified amount of reduction can, for example, be a fixed percentage of the current level of the constant-current portion of the rechargeable battery charging scheme, or it can be based on the parameters of the battery being charged.
    • 在可再充电电池充电方案的恒定电流部分之后,具有比恒定电流部分的电流值低的电流值的电流值比电流值低的脉冲,在脉冲的至少部分周期内,可以增加经过的时间量 可再充电电池的电压处于或高于阈值电压,从而减少可再充电电池的总充电时间。 可以使用各种电流脉冲形状来减少可充电电池的总充电时间,包括例如从低电流电平开始并在脉冲的一些或全部周期上增加的斜坡脉冲,以及恒定电流 其电流水平与可再充电电池充电方案的恒定电流部分的电流值相比减少规定量。 例如,指定的减少量可以是可再充电电池充电方案的恒定电流部分的当前电平的固定百分比,或者可以基于正在充电的电池的参数。