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    • 1. 发明申请
    • APPARATUS FOR GENERATING A PLURALITY OF DIFFERENT VOLTAGE LEVEL CLOCK SIGNALS
    • 用于产生多个不同电压电平时钟信号的装置
    • US20120013380A1
    • 2012-01-19
    • US12836865
    • 2010-07-15
    • Karthik KadirvelUmar Jameer LylesJohn H. Carpenter, JR.
    • Karthik KadirvelUmar Jameer LylesJohn H. Carpenter, JR.
    • H03K3/00
    • H03K19/018578
    • 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.
    • 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。
    • 2. 发明申请
    • Systems and Methods of Overvoltage and Undervoltage Detection
    • 过电压和欠压检测系统与方法
    • US20100225300A1
    • 2010-09-09
    • US12399361
    • 2009-03-06
    • Umar Jameer LylesKarthik KadirvelJohn H. Carpenter, JR.
    • Umar Jameer LylesKarthik KadirvelJohn H. Carpenter, JR.
    • G01R19/00
    • G01R19/1659
    • 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.
    • 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。
    • 3. 发明申请
    • Multi-Cell Power System Controller
    • 多单元电力系统控制器
    • US20100289497A1
    • 2010-11-18
    • US12466871
    • 2009-05-15
    • Brian Lum-Shue-ChanKarthik KadirvelJohn H. Carpenter, JR.Umar Jameer Lyles
    • Brian Lum-Shue-ChanKarthik KadirvelJohn H. Carpenter, JR.Umar Jameer Lyles
    • G01R31/04G01N27/416
    • G01R31/3658
    • 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.
    • 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。
    • 5. 发明申请
    • METHODS AND APPARATUS TO DETECT VOLTAGE CONDITIONS OF POWER SUPPLIES
    • 检测电源电压条件的方法和装置
    • US20120062272A1
    • 2012-03-15
    • US12880561
    • 2010-09-13
    • Karthik KadirvelJohn H. Carpenter, JR.
    • Karthik KadirvelJohn H. Carpenter, JR.
    • G01R31/40
    • G01R31/362
    • Methods and apparatus to detect voltage conditions of power supplies are disclosed. An example power supply monitor to detect fault conditions in a power supply includes a capacitive element communicatively coupled to the power supply, the capacitive element being configured to change state between a collapsed state and an open state in response to the power supply having a first voltage associated with a first fault condition of the power supply; a detector communicatively coupled to the capacitive element to detect a voltage spike generated from the state change of the capacitive element; and a signal generator to generate a fault signal in response to the voltage spike to indicate the power supply being in the first fault condition.
    • 公开了检测电源电压状况的方法和装置。 用于检测电源中的故障状况的示例电源监视器包括通信地耦合到电源的电容元件,电容元件被配置为响应于具有第一电压的电源而在收缩状态和打开状态之间改变状态 与电源的第一故障状态相关联; 检测器,其通信地耦合到所述电容元件,以检测从所述电容元件的状态变化产生的电压尖峰; 以及信号发生器,用于响应于所述电压尖峰而产生故障信号,以指示所述电源处于所述第一故障状态。