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公开(公告)号：US07999558B2
公开(公告)日：2011-08-16
申请号：US12399361
申请日：2009-03-06
IPC分类号： G01R19/00
CPC分类号： G01R19/1659
摘要： Systems and methods for overvoltage and undervoltage detection may be implemented with a fully differential circuit that includes a coarse comparator and a band gap based fine comparator. The coarse comparator may determine if the battery is closer to an OV condition or an UV condition. Based on the output of the coarse comparator, the trip point of the fine comparator is adjusted. The outputs of both comparators are pull-up circuits whose output is decoded to determine if an OV or a UV condition has occurred. The systems and methods accomplish valid circuit outputs even when the voltage across the battery reduces to zero volts. This may be achieved by using an active low signal for the UV condition and an active high signal for the OV condition. Thus, when the battery voltage goes to zero, the circuit evaluates to the correct output.
摘要翻译： 用于过压和欠压检测的系统和方法可以用包括粗略比较器和基于带隙的精细比较器的全差分电路来实现。 粗略比较器可以确定电池是否更接近OV状态或UV状态。 根据粗略比较器的输出，调整精细比较器的跳变点。 两个比较器的输出是上拉电路，其输出被解码以确定是否发生了OV或UV条件。 即使当电池两端的电压降至零伏特时，系统和方法也可实现有效的电路输出。 这可以通过使用用于UV条件的有源低信号和用于OV条件的有效高信号来实现。 因此，当电池电压变为零时，电路评估为正确的输出。
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公开(公告)号：US09091736B2
公开(公告)日：2015-07-28
申请号：US12349039
申请日：2009-01-06
IPC分类号： G01N27/416 , G01R31/36 , H02J7/00
CPC分类号： G01R31/3658 , H02J7/0021
摘要： Systems and methods for cell anomaly detection are provided. The disclosed systems and methods of cell anomaly detection may use a single circuit to detect both cell-open and imbalance conditions. Disclosed embodiments may incorporate a continuous or a sampled time system (i.e. cell anomaly detection is performed when an enable signal is active). An example embodiment includes receiving voltages of a plurality of cells of a battery pack; converting the received voltages to currents; determining a maximum current of the currents; determining whether at least one of the currents is anomalous; and reporting the at least one anomalous current as indicative of a bad cell.
摘要翻译： 提供了细胞异常检测的系统和方法。 公开的细胞异常检测的系统和方法可以使用单个电路来检测细胞开放和不平衡条件。 公开的实施例可以包括连续或采样的时间系统（即，当使能信号有效时执行信元异常检测）。 示例实施例包括接收电池组的多个单元的电压; 将接收的电压转换成电流; 确定电流的最大电流; 确定至少一个电流是否是异常的; 并将至少一个异常电流报告为不良小区的指示。
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3.发明申请APPARATUS FOR GENERATING A PLURALITY OF DIFFERENT VOLTAGE LEVEL CLOCK SIGNALS 有权用于产生多个不同电压电平时钟信号的装置公开(公告)号：US20120013380A1
公开(公告)日：2012-01-19
申请号：US12836865
申请日：2010-07-15
IPC分类号： H03K3/00
CPC分类号： H03K19/018578
摘要： A system is provided for generating a plurality of different voltage level clock signals. The system comprises an electrical energy storage pack having a plurality of series coupled electrical energy storage cells that provide a plurality of different output voltage level, a reference oscillator that provides a reference clock signal and a plurality of voltage clamps that receive the plurality of different output voltage levels and output the plurality of different voltage level clock signals at respective output nodes. The plurality of voltage clamps are configured to clamp each of a given output node to a respective high-side voltage level in response to pulling up of the given output node toward a respective high output voltage level and to clamp each of the given output node to a respective low-side voltage level in response to pulling down of the output node toward a low output voltage level.
摘要翻译： 提供一种用于产生多个不同电压电平时钟信号的系统。 该系统包括具有提供多个不同输出电压电平的多个串联耦合的电能存储单元的电能存储包，提供参考时钟信号的参考振荡器和接收多个不同输出的多个电压钳位 电压电平并在相应的输出节点处输出多个不同的电压电平时钟信号。 多个电压钳位件被配置为响应于给定的输出节点向着相应的高输出电压电平上拉而将给定输出节点中的每一个钳位到相应的高侧电压电平，并且将每个给定的输出节点钳位到 响应于将输出节点向下拉输送到低输出电压电平的相应的低侧电压电平。
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公开(公告)号：US20100225300A1
公开(公告)日：2010-09-09
申请号：US12399361
申请日：2009-03-06
IPC分类号： G01R19/00
CPC分类号： G01R19/1659
摘要： Systems and methods for overvoltage and undervoltage detection are provided. The disclosed systems and methods of overvoltage and undervoltage detection may be implemented with a fully differential circuit that includes a coarse comparator and a band gap based fine comparator. The coarse comparator may determine if the battery is closer to an OV condition or an UV condition. Based on the output of the coarse comparator, the trip point of the fine comparator is adjusted. The outputs of both comparators are pull-up circuits whose output is decoded to determine if an OV or a UV condition has occurred. The disclosed systems and methods of overvoltage and undervoltage detection accomplish valid circuit outputs even when the voltage across the battery reduces to zero volts. This may be achieved by using an active low signal for the UV condition and an active high signal for the OV condition. Thus, when the battery voltage goes to zero, the circuit evaluates to the correct output.
摘要翻译： 提供了过电压和欠压检测的系统和方法。 所公开的过电压和欠压检测的系统和方法可以用包括粗略比较器和基于带隙的精细比较器的全差分电路来实现。 粗略比较器可以确定电池是否更接近OV状态或UV状态。 根据粗略比较器的输出，调整精细比较器的跳变点。 两个比较器的输出是上拉电路，其输出被解码以确定是否发生了OV或UV条件。 所公开的过电压和欠压检测的系统和方法即使在电池两端的电压降至零伏特时也能实现有效的电路输出。 这可以通过使用用于UV条件的有源低信号和用于OV条件的有效高信号来实现。 因此，当电池电压变为零时，电路评估为正确的输出。
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公开(公告)号：US08264200B2
公开(公告)日：2012-09-11
申请号：US12466871
申请日：2009-05-15
IPC分类号： H02J7/00
CPC分类号： G01R31/3658
摘要： Various apparatuses and methods for detecting cell connection status of a multi-cell battery are disclosed herein. For example, some embodiments provide an apparatus for detecting cell connection status of a multi-cell battery. The apparatus includes a battery cell input for each cell, a cell connection status detector for each cell, and at least one comparator. Each of the cell connection status detectors is connected to a battery cell input and has a current-based status indicator output. The at least one comparator is connected to the current-based status indicator outputs. Each of the plurality of cell connection status detectors floats in a different supply voltage range. The at least one comparator is referenced to a lower voltage potential than at least one of the plurality of cell connection status detectors.
摘要翻译： 这里公开了用于检测多单元电池的单元连接状态的各种装置和方法。 例如，一些实施例提供了用于检测多单元电池的单元连接状态的装置。 该装置包括用于每个单元的电池单元输入，每个单元的单元连接状态检测器和至少一个比较器。 每个单元连接状态检测器连接到电池单元输入，并具有基于电流的状态指示器输出。 至少一个比较器连接到基于电流的状态指示器输出。 多个单元连接状态检测器中的每一个浮动在不同的电源电压范围内。 所述至少一个比较器参考比多个单元连接状态检测器中的至少一个小的电压电位。
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公开(公告)号：US20100289497A1
公开(公告)日：2010-11-18
申请号：US12466871
申请日：2009-05-15
IPC分类号： G01R31/04 , G01N27/416
CPC分类号： G01R31/3658
摘要： Various apparatuses and methods for detecting cell connection status of a multi-cell battery are disclosed herein. For example, some embodiments provide an apparatus for detecting cell connection status of a multi-cell battery. The apparatus includes a battery cell input for each cell, a cell connection status detector for each cell, and at least one comparator. Each of the cell connection status detectors is connected to a battery cell input and has a current-based status indicator output. The at least one comparator is connected to the current-based status indicator outputs. Each of the plurality of cell connection status detectors floats in a different supply voltage range. The at least one comparator is referenced to a lower voltage potential than at least one of the plurality of cell connection status detectors.
摘要翻译： 这里公开了用于检测多单元电池的单元连接状态的各种装置和方法。 例如，一些实施例提供了一种用于检测多单元电池的单元连接状态的装置。 该装置包括用于每个单元的电池单元输入，每个单元的单元连接状态检测器和至少一个比较器。 每个单元连接状态检测器连接到电池单元输入，并具有基于电流的状态指示器输出。 至少一个比较器连接到基于电流的状态指示器输出。 多个单元连接状态检测器中的每一个浮动在不同的电源电压范围内。 所述至少一个比较器参考比多个单元连接状态检测器中的至少一个小的电压电位。
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公开(公告)号：US20100173183A1
公开(公告)日：2010-07-08
申请号：US12349039
申请日：2009-01-06
IPC分类号： G01N27/416 , H01M6/02 , H01M8/04 , H01M10/48
CPC分类号： G01R31/3658 , H02J7/0021
摘要： Systems and methods for cell anomaly detection are provided. The disclosed systems and methods of cell anomaly detection may use a single circuit to detect both cell-open and imbalance conditions. Disclosed embodiments may incorporate a continuous or a sampled time system (i.e. cell anomaly detection is performed when an enable signal is active). An example embodiment includes receiving voltages of a plurality of cells of a battery pack; converting the received voltages to currents; determining a maximum current of the currents; determining whether at least one of the currents is anomalous; and reporting the at least one anomalous current as indicative of a bad cell.
摘要翻译： 提供了细胞异常检测的系统和方法。 公开的细胞异常检测的系统和方法可以使用单个电路来检测细胞开放和不平衡条件。 公开的实施例可以包括连续或采样的时间系统（即，当使能信号有效时执行信元异常检测）。 示例实施例包括接收电池组的多个单元的电压; 将接收的电压转换成电流; 确定电流的最大电流; 确定至少一个电流是否是异常的; 并将至少一个异常电流报告为不良小区的指示。
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8.发明授权Apparatus for generating a plurality of different voltage level clock signals 有权用于产生多个不同电压电平时钟信号的装置公开(公告)号：US08149040B2
公开(公告)日：2012-04-03
申请号：US12836865
申请日：2010-07-15
CPC分类号： H03K19/018578
摘要： A system is provided for generating a plurality of different voltage level clock signals. The system comprises an electrical energy storage pack having a plurality of series coupled electrical energy storage cells that provide a plurality of different output voltage level, a reference oscillator that provides a reference clock signal and a plurality of voltage clamps that receive the plurality of different output voltage levels and output the plurality of different voltage level clock signals at respective output nodes. The plurality of voltage clamps are configured to clamp each of a given output node to a respective high-side voltage level in response to pulling up of the given output node toward a respective high output voltage level and to clamp each of the given output node to a respective low-side voltage level in response to pulling down of the output node toward a low output voltage level.
摘要翻译： 提供一种用于产生多个不同电压电平时钟信号的系统。 该系统包括具有提供多个不同输出电压电平的多个串联耦合的电能存储单元的电能存储包，提供参考时钟信号的参考振荡器和接收多个不同输出的多个电压钳位 电压电平并在相应的输出节点处输出多个不同的电压电平时钟信号。 多个电压钳位件被配置为响应于给定的输出节点向着相应的高输出电压电平上拉而将给定输出节点中的每一个钳位到相应的高侧电压电平，并且将每个给定的输出节点钳位到 响应于将输出节点向下拉输送到低输出电压电平的相应的低侧电压电平。
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9.发明申请Systems and Methods for Analog to Digital Converter Charge Storage Device Measurement 有权用于模数转换器充电存储器件测量的系统和方法公开(公告)号：US20120112941A1
公开(公告)日：2012-05-10
申请号：US12939486
申请日：2010-11-04
IPC分类号： H03M3/04
CPC分类号： H03M1/124 , G01R31/3658 , H01M10/482 , H03M3/494
摘要： Systems and methods for analog to digital conversion charge storage device measurement are presented. In multi-cell charge storage device monitoring systems, accurate measurement of cell voltages is used for protection of the multi-cell device. The disclosed cell referenced solution converts the cell voltage to a digital representation referenced at the cell voltage. The digital representation referenced to the cell voltage is then level shifted to a ground referenced signal suitable for digital post processing. This processing may be used for fault detection of over-voltage, under-voltage, open cell, and similar fault conditions and cell capacity measurements. An example embodiment implements a sigma delta modulator to perform the signal transformation from analog to digital. The disclosed systems and methods may be differential and stackable for multiple cells.
摘要翻译： 提出了模数转换电荷存储器件测量的系统和方法。 在多单元电荷存储装置监视系统中，使用单元电压的精确测量来保护多单元装置。 所公开的电池参考解决方案将电池电压转换为以电池电压参考的数字表示。 然后将电池电压参考的数字表示电平移位到适合于数字后处理的地参考信号。 该处理可用于过电压，欠压，开放电池以及类似故障条件和电池容量测量的故障检测。 示例性实施例实现了Σ-Δ调制器来执行从模拟到数字的信号变换。 所公开的系统和方法可以是多个小区的差分和可堆叠的。
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公开(公告)号：US08436620B2
公开(公告)日：2013-05-07
申请号：US12874911
申请日：2010-09-02
申请人： Gary Lee Stirk , Brian Allen , Umar Jameer Lyles , John Houldsworth , Brian Lum-Shue-Chan , Bertan Bakkaloglu
发明人： Gary Lee Stirk , Brian Allen , Umar Jameer Lyles , John Houldsworth , Brian Lum-Shue-Chan , Bertan Bakkaloglu
IPC分类号： G01N27/416
CPC分类号： G01R19/2503
摘要： Systems and methods are provided for monitoring a voltage. A level shifter is configured to generate a current proportional to the voltage of the battery cell. A delta-sigma modulator is configured to convert the current into a first density modulated bitstream representing the voltage of the battery cell. A first reference source is configured to provide a second density modulated bitstream representing a first threshold voltage. A first comparator is configured to compare the first density modulated bitstream and the second density modulated bitstream.
摘要翻译： 提供了用于监测电压的系统和方法。 电平移位器被配置为产生与电池单元的电压成比例的电流。 Δ-Σ调制器被配置为将电流转换成表示电池单元的电压的第一密度调制比特流。 第一参考源被配置为提供表示第一阈值电压的第二密度调制比特流。 第一比较器被配置为比较第一密度调制比特流和第二密度调制比特流。
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