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    • 1. 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。
    • 2. 发明授权
    • Protection circuit for electronic devices
    • 电子设备保护电路
    • US6130813A
    • 2000-10-10
    • US228463
    • 1999-01-11
    • Barry K. KatesJohn A. Cummings
    • Barry K. KatesJohn A. Cummings
    • H02H9/00H02H11/00H02J1/10H02J7/00H02H3/08
    • H02J1/10H02H9/001H02J7/0031H02H11/005
    • For an electronic device having at least one power switch for each of two or more power sources such that the power switches can be selectively activated or deactivated depending on a signal supplied to them, a protection circuit having a current-sense circuit coupled to measure the current from the two or more power sources, and a latch for producing a switch deactivating signal and applying it to the switches in response to an over-current signal from the current-sense circuit can protect the switches and the electronic device from soft-short circuits and absolute short circuits. Bypass resistors coupled to the switches allow the electronic device to receive a small current ("pre-charge") before any of the switches are activated so that a comparator can test for the presence of various types of short circuits. Additionally, the precharging brings the electronic device to a higher voltage (as compared to no pre-charging) when one of the switches is activated, thereby helping to reduce in-rush currents. Blanking logic allows the protection circuit to tolerate certain in-rush currents by preventing the latch from triggering (e.g., supplying the latch with an under-current signal) for an appropriate time period.
    • 对于具有用于两个或更多个电源中的每一个的至少一个电源开关的电子设备,使得可以根据提供给它们的信号来选择性地激活或去激活功率开关,保护电路具有电流检测电路,以测量 来自两个或更多个电源的电流和用于产生开关去激活信号并且响应于来自电流检测电路的过电流信号将其施加到开关的锁存器可以保护开关和电子器件免于软短路 电路和绝对短路。 耦合到开关的旁路电阻允许电子设备在任何开关被激活之前接收小电流(“预充电”),使得比较器可以测试各种类型的短路的存在。 此外,当其中一个开关被激活时,预充电使电子设备达到更高的电压(与无预充电相比),从而有助于减少浪涌电流。 消隐逻辑允许保护电路通过防止锁存器触发(例如,提供具有欠电流信号的锁存器)适当的时间段来容忍某些涌入电流。
    • 3. 发明授权
    • Current converter and source identification and detection
    • 电流转换器和源识别和检测
    • US6058034A
    • 2000-05-02
    • US174955
    • 1998-10-19
    • John A. CummingsBarry K. Kates
    • John A. CummingsBarry K. Kates
    • H02M3/00H02M7/04
    • H02M3/00
    • A current converter that includes stored information about the converter can provide that information to an electronic device, such as a computer system, when the current converter is in use with the device. The current converter information can include manufacturer and model identity information, compatibility information, electrical characteristics, current converter type information, and current source information. A storage device in the current converter is coupled to a data bus for connecting to the electronic device, or can make use of one or more of the existing power output terminals to provide current converter information to the electronic device. Based on the information provided to the electronic device, the device can determine whether to allow operation of the device, and if so, under what circumstances and conditions.
    • 当电流转换器与设备一起使用时,包括存储的关于转换器的信息的电流转换器可将该信息提供给诸如计算机系统的电子设备。 电流转换器信息可以包括制造商和型号身份信息,兼容性信息,电特性,电流转换器类型信息和当前源信息。 电流转换器中的存储装置耦合到用于连接到电子装置的数据总线,或者可以利用一个或多个现有的功率输出端子来向电子装置提供电流转换器信息。 根据提供给电子设备的信息,设备可以确定是否允许设备的操作,如果是,在什么情况和条件下。
    • 4. 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。
    • 6. 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
    • Method and apparatus for a multiple stage sequential synchronous regulator
    • 多级顺序同步调节器的方法和装置
    • US06218815B1
    • 2001-04-17
    • US09426482
    • 1999-10-26
    • Barry K. KatesEdward P. Sheehan, Jr.
    • Barry K. KatesEdward P. Sheehan, Jr.
    • G05F140
    • H02M3/1584
    • A multiple stage sequential synchronous regulator including multiple switch stages activated in a sequential manner to reduce the frequency, stress and power loss per stage. In the preferred embodiment, each stage is implemented using buck regulator topology including an inductor and two synchronous switches, preferably comprising MOSFETs. A sequential logic circuit asserts corresponding enable signals to activate each of the stages one at a time in sequential manner. Each stage also receives a pulse width modulated (PWM) signal for activating the first synchronous switch during a power phase and then activating the second synchronous switch during a flux reversal phase for the enabled stage. The time sharing of multiple stages reduces the average current per stage and allows increased utilization of the switching parts per stage. Thus, the typically large and expensive power inductors and switches are replaced with significantly smaller, lighter and cheaper components. Furthermore, each switched device can be pushed past its rated limits due to smaller average current, thereby increasing the efficiency of each of the parts. A single output capacitor is coupled to all of the stages for filtering the output voltage. The output capacitor can remain small since it sees the cumulative frequency of all of the switch stages combined.
    • 多级顺序同步调节器包括以顺序方式激活的多个开关级,以降低每级的频率,应力和功率损耗。 在优选实施例中,使用包括电感器和优选地包括MOSFET的两个同步开关的降压调节器拓扑来实现每个级。 顺序逻辑电路断言相应的使能信号以顺序的方式一次一个地激活每个级。 每个级还接收脉冲宽度调制(PWM)信号,用于在电力阶段激活第一同步开关,然后在启用级的通量反转阶段期间激活第二同步开关。 多级的时间共享降低了每级的平均电流,并允许每个阶段更多地利用开关部件。 因此,典型的大型和昂贵的功率电感器和开关被显着更小,更轻和更便宜的部件替代。 此外,由于较小的平均电流,每个开关装置可以被推到超过其额定极限,从而提高每个部件的效率。 单个输出电容器耦合到所有级以对输出电压进行滤波。 输出电容器可以保持较小,因为它看到所有开关级的累积频率合并。
    • 8. 发明授权
    • Redirected sequential flyback regulator
    • 重定向顺序回扫调节器
    • US06172883B2
    • 2001-01-09
    • US09236132
    • 1999-01-22
    • Barry K. KatesJohn Cummings
    • Barry K. KatesJohn Cummings
    • H02M3335
    • H02M3/33576H02M3/33561
    • A switching flyback regulator circuit for providing a plurality of regulated DC voltage power supplies. The flyback regulator circuit includes a primary inductive element coupled in series with a first switch to turn charging current flow through the primary inductive element ON and OFF. A first secondary inductive element having a first end coupled to supply a first power source. A second secondary inductive element has a first end coupled to produce the second power source, and a second end coupled to a second switch to turn current flow through the second secondary inductive element ON and OFF. The first secondary inductive element and the second secondary inductive element are magnetically coupled to the primary inductive element. A control circuit generates a ramped voltage signal having a negative slope to control the ON and OFF duty cycle of the second switch such that when the first switch is operated to allow the primary inductive element to discharge, current flows through the first secondary inductive element before current flows in the other secondary inductive element. The current through the second switch is zero when the second switch is turned OFF and ON, thereby eliminating switching losses and improving efficiency of the flyback regulator circuit.
    • 一种用于提供多个稳压的DC电压电源的开关反激调节器电路。 回扫调节器电路包括与第一开关串联耦合的初级电感元件,以使通过初级电感元件ON和OFF的充电电流流动。 第一次级感应元件,其具有耦合以提供第一电源的第一端。 第二次感应元件具有耦合以产生第二电源的第一端,以及耦合到第二开关的第二端,以使通过第二次级电感元件的电流流过和断开。 第一次感应元件和第二次感应元件磁耦合到主电感元件。 控制电路产生具有负斜率的斜坡电压信号以控制第二开关的导通和截止占空比,使得当第一开关被操作以允许初级电感元件放电时,电流在第一次感应元件之前流过第一次感应元件 电流在另一个次级电感元件中流动。 当第二开关断开和接通时,通过第二开关的电流为零,从而消除开关损耗并提高回扫调节器电路的效率。
    • 10. 发明授权
    • Asymmetric power supply including a fast response converter
    • 不对称电源包括快速响应转换器
    • US06577515B2
    • 2003-06-10
    • US09798550
    • 2001-03-02
    • Barry K. Kates
    • Barry K. Kates
    • H02M324
    • H02M3/1584
    • An asymmetric multi-converter power supply including a first converter and a second converter coupled to provide power to an output node. A control circuit is coupled to the second converter and is configured to selectively enable the second converter depending upon a voltage at the output node. The control circuit may be configured to enable the second converter only in response to determining that the voltage at the output node is not within a predetermined range. Alternatively, the first converter is configured to provide power through a first series inductor and the second converter is configured to provide power to the output node through a second series inductor. The second series inductor having a smaller inductance than the first series inductor. Additionally, the second converter may be characterized by a transient response time that is faster than a transient response time of the first converter.
    • 非对称多转换器电源,包括耦合以向输出节点提供电力的第一转换器和第二转换器。 控制电路耦合到第二转换器,并且被配置为根据输出节点处的电压选择性地启用第二转换器。 控制电路可以被配置为仅响应于确定输出节点处的电压不在预定范围内而使第二转换器能够使能。 或者,第一转换器被配置为通过第一串联电感器提供电力,并且第二转换器被配置为通过第二串联电感器向输出节点提供电力。 第二串联电感器具有比第一串联电感器更小的电感。 另外,第二转换器的特征在于瞬态响应时间比第一转换器的瞬态响应时间快。