Fuel cell and battery systems
    1.
    发明授权
    Fuel cell and battery systems 有权
    燃料电池和电池系统

    公开(公告)号:US07688021B2

    公开(公告)日:2010-03-30

    申请号:US11213210

    申请日:2005-08-26

    摘要: In at least some embodiments, a system comprises a load and a fuel cell coupled to said load, the fuel cell being configured to provide a constant power level to said load. The system further comprises a battery coupled to said load and configured to provide power in excess of said constant power level to said load, if needed by said load.

    摘要翻译: 在至少一些实施例中,系统包括耦合到所述负载的负载和燃料电池,所述燃料电池被配置为向所述负载提供恒定的功率电平。 该系统还包括耦合到所述负载的电池,并且被配置为如果所述负载需要,则向所述负载提供超过所述恒定功率电平的功率。

    System with limited long-time-averaged battery charging rate
    3.
    发明授权
    System with limited long-time-averaged battery charging rate 失效
    系统具有长时间平均电池充电率有限

    公开(公告)号:US6137268A

    公开(公告)日:2000-10-24

    申请号:US885215

    申请日:1997-06-30

    IPC分类号: H02J7/00 H02J7/04

    CPC分类号: H02J7/0078

    摘要: A battery charging system in which current is averaged over a long time period (seconds) to determine the maximum average charging rate. When the integral of charging current over this long period reaches the programmed maximum charge value for one period, current is simply cut off for the remainder of the fixed long period.

    摘要翻译: 电池充电系统,其中电流在长时间段(秒)上被平均以确定最大平均充电速率。 当这段长时间的充电电流的积分达到一个周期的编程最大电荷值时,在固定长时间段的剩余时间内,电流被简单地切断。

    Battery charge monitor and fuel gauge
    5.
    发明授权
    Battery charge monitor and fuel gauge 失效
    电池充电监视器和电量计

    公开(公告)号:US5315228A

    公开(公告)日:1994-05-24

    申请号:US825638

    申请日:1992-01-24

    摘要: A battery charge controller and fuel gauge which accurately monitors the voltage, temperature, and charge and discharge current of a rechargeable battery, and calculates the battery's charge capacity and charge level. Each time the battery is fully discharged, any calculated charge level remaining is divided by two and subtracted from the previously calculated charge capacity. When the battery is fully charged, the charge level is set equal to the charge capacity. During subsequent charge and discharge, the current is converted to a coulomb count and added or subtracted from the charge level to maintain an accurate charge level. Fast charge inefficiency due to temperature is considered by subtracting a temperature proportional factor before the charge level of the battery is updated. The charge level, voltage and temperature are used to determine the optimal fast charge termination point to achieve full charge and prevent temperature abuse and overcharge. A fast charge is applied only if the battery is within proper voltage and temperature ranges. The charge controller includes a microcontroller circuit within the same battery pack as the battery, which is powered by the battery when AC power is unavailable. The microcontroller circuit consumes very little power, measures circuit errors to assure data accuracy, times periods of self-discharge and updates the charge level accordingly. The microcontroller circuit also includes memory to store the battery charge information and a communication port to provide the charge information to a computer system connected to the battery pack.

    摘要翻译: 电池充电控制器和电量计,可精确监测充电电池的电压,温度和充放电电流,并计算电池的充电容量和充电电量。 每次电池完全放电时,剩余的任何计算的电荷水平除以2,并从先前计算的充电容量中减去。 当电池充满电时,充电电平设置为等于充电容量。 在随后的充电和放电期间,电流被转换为库仑计数,并从充电电平加减,以保持精确的充电电平。 通过在更新电池的充电水平之前减去温度比例因子来考虑由于温度导致的快速充电效率低下。 充电电平,电压和温度用于确定最佳快速充电终止点以实现充满电并防止温度滥用和过充电。 仅当电池在适当的电压和温度范围内时,才能使用快速充电。 充电控制器包括与电池相同的电池组中的微控制器电路,当电力不可用时,它由电池供电。 微控制器电路消耗很少的功率,测量电路误差以确保数据精度,自放电的时间周期和相应的电荷电平更新。 微控制器电路还包括用于存储电池电荷信息的存储器和通信端口,以向连接到电池组的计算机系统提供充电信息。

    Charging a battery having a nominal critical terminal voltage
    7.
    发明授权
    Charging a battery having a nominal critical terminal voltage 失效
    对具有标称临界端电压的电池充电

    公开(公告)号:US5726554A

    公开(公告)日:1998-03-10

    申请号:US653193

    申请日:1996-05-24

    CPC分类号: H01M10/44 H02J7/0093

    摘要: A battery pack of a computer system includes a battery having a nominal critical terminal voltage that may not be exceeded without hazardous failure of the battery. The battery pack includes a controller for routing power from an external power source to the battery to recharge the battery. The controller is configured to apply a time profile of charging power to the terminals of the battery. The profile includes time portions when the terminal voltage of the battery exceeds the nominal rated critical terminal voltage. The controller is also configured to control the time profile to prevent hazardous failure of the battery.

    摘要翻译: 计算机系统的电池组包括具有标称临界端电压的电池,该电池可能不会超过电池的危险故障。 电池组包括用于将电源从外部电源引导到电池以对电池充电的控制器。 控制器被配置为向电池的端子施加充电电力的时间曲线。 当电池的端子电压超过标称额定临界端子电压时,配置文件包括时间部分。 控制器还配置为控制时间曲线,以防止电池的危险故障。

    Battery charge monitor to determine fast charge termination
    8.
    发明授权
    Battery charge monitor to determine fast charge termination 失效
    电池充电监视器确定快速充电终止

    公开(公告)号:US5200689A

    公开(公告)日:1993-04-06

    申请号:US824935

    申请日:1992-01-24

    IPC分类号: G01R31/36 H02J7/00

    摘要: A battery charge controller and fuel gauge which accurately monitors the voltage, temperature, and charge and discharge current of a rechargeable battery, and calculates the battery's charge capacity and charge level. Each time the battery is fully discharged, any calculated charge level remaining is divided by subtracted from the previously calculated charge capacity. When the battery is fully charged, the charge level is set equal to the charge capacity. During subsequent charge and discharge, the current is converted to a coulomb count and added or subtracted from the charge level to maintain an accurate charge level. Fast charge inefficiency due to temperature is considered by subtracting a temperature proportional factor before the charge level of the battery is updated. The charge level, voltage and temperature are used to determine the optimal fast charge termination point to achieve full charge and prevent temperature abuse and overcharge. A fast charge is applied only if the battery is within proper voltage and temperature ranges. The charge controller includes a microcontroller circuit within the same battery pack as the battery, which is powered by the battery when AC power is unavailable. The microcontroller circuit consumes very little power, measures circuit errors to assure data accuracy, times periods of self-discharge and updates the charge level accordingly. The microcontroller circuit also includes memory to store the battery charge information and a communication port to provide the charge information to a computer system connected to the battery pack.

    摘要翻译: 电池充电控制器和电量计,可精确监测充电电池的电压,温度和充放电电流,并计算电池的充电容量和充电电量。 每次电池完全放电时,剩余的任何计算的电荷电平除以先前计算的充电容量减去。 当电池充满电时,充电电平设置为等于充电容量。 在随后的充电和放电期间,电流被转换为库仑计数,并从充电电平加减,以保持精确的充电电平。 通过在更新电池的充电水平之前减去温度比例因子来考虑由于温度导致的快速充电效率低下。 充电电平,电压和温度用于确定最佳快速充电终止点以实现充满电并防止温度滥用和过充电。 仅当电池在适当的电压和温度范围内时,才能使用快速充电。 充电控制器包括与电池相同的电池组中的微控制器电路,当电力不可用时,它由电池供电。 微控制器电路消耗很少的功率,测量电路误差以确保数据精度,自放电的时间周期和相应的电荷电平更新。 微控制器电路还包括用于存储电池电荷信息的存储器和通信端口,以向连接到电池组的计算机系统提供充电信息。

    Battery pack with a monitoring circuit for a known system
    10.
    发明授权
    Battery pack with a monitoring circuit for a known system 失效
    具有用于已知系统的监控电路的电池组

    公开(公告)号:US5641587A

    公开(公告)日:1997-06-24

    申请号:US573296

    申请日:1995-12-15

    摘要: A removable battery pack for powering a pen-based or portable computer system in which the battery pack blocks its terminals when inserted into an unknown system. The known system includes a power supply microcontroller which passes battery charge data back and forth between a memory located in the battery pack and the power supply microcontroller. A battery microcontroller, located in the battery pack, eavesdrops drops on the communication between the power supply microcontroller and the memory, and when it validates a known signature of this communication, the battery microcontroller then enables the terminals of the battery pack. A trickle discharge current flows from the battery pack whenever the battery pack is out of the known system to allow the power supply microcontroller to power up in the case of a dead auxiliary battery.

    摘要翻译: 一种用于为笔式或便携式计算机系统供电的可拆卸电池组,其中当插入未知系统时,电池组阻止其端子。 已知的系统包括电源微控制器,其在位于电池组的存储器和电源微控制器之间来回传递电池电荷数据。 位于电池组中的电池微控制器在电源微控制器和存储器之间的通信中被窃听掉落,并且当其验证该通信的已知签名时,电池微控制器然后启用电池组的端子。 每当电池组脱离已知系统时,涓流的放电电流从电池组流出,以允许电源微控制器在死辅助电池的情况下通电。