公开(公告)号：US20130215056A1

公开(公告)日：2013-08-22

申请号：US13770082

申请日：2013-02-19

申请人： Sony Mobile Communications AB

发明人： Allan Johansson ,  Lars Knutsson ,  Peter Åberg ,  Bjorn Rosqvist

IPC分类号： G01R27/14 ,  G06F3/041

CPC分类号： G01R27/14 ,  G01D3/036 ,  G01L1/2281 ,  G01R31/2829 ,  G06F3/0414

摘要： For determining a sensor value of a sensor (13), a first electrical supply voltage (VS1) is supplied to the sensor (13) and a first electrical resistance of the sensor (13) is detected. Then, a second electrical supply voltage (VS2) is supplied to the sensor and a second electrical resistance of the sensor (13) is detected. The second electrical supply voltage (VS2) is different from the first electrical supply voltage (VS1). The sensor value is automatically determined depending on the first electrical supply voltage (VS1), the second electrical supply voltage (VS2), the first electrical resistance, and the second electrical resistance.

摘要翻译： 为了确定传感器（13）的传感器值，向传感器（13）提供第一电源电压（VS1），并且检测传感器（13）的第一电阻。 然后，将第二电源电压（VS2）提供给传感器，并且检测传感器（13）的第二电阻。 第二电源电压（VS2）与第一电源电压（VS1）不同。 传感器值根据第一电源电压（VS1），第二电源电压（VS2），第一电阻和第二电阻自动确定。

公开(公告)号：US20130169297A1

公开(公告)日：2013-07-04

申请号：US13635739

申请日：2011-03-18

申请人： Karl Pilz

发明人： Karl Pilz

IPC分类号： G01R19/00

CPC分类号： G01R19/00 ,  G01R19/0092 ,  G01R19/16519 ,  G01R27/02 ,  G01R27/08 ,  G01R27/14 ,  G01R27/16 ,  G01R27/26

摘要： A method for measuring an electrical current with the aid of a field effect transistor inserted into a current path and an apparatus for implementing the method. A control voltage is applied between the gate and source of the transistor in such a way that the voltage drop between the drain and source at the transistor in the current path remains within a specifiable range. The voltage drop and the control voltage are determined. With these two values, and with a known relationship between the drain-source current, the drain-source voltage and the gate-source voltage the value of the current of interest can now be determined.

摘要翻译： 借助于插入到电流路径中的场效应晶体管来测量电流的方法和用于实现该方法的装置。 在晶体管的栅极和源极之间施加控制电压，使得电流路径中的晶体管处的漏极和源极之间的电压降保持在可指定的范围内。 确定电压降和控制电压。 利用这两个值，并且在漏 - 源电流，漏 - 源电压和栅 - 源电压之间已知的关系现在可以确定感兴趣的电流的值。

公开(公告)号：US20130147498A1

公开(公告)日：2013-06-13

申请号：US13636215

申请日：2011-04-18

申请人： Ryouji Hironaka

发明人： Ryouji Hironaka

IPC分类号： G01R27/14

CPC分类号： G01R27/14 ,  B60L11/123 ,  B60L11/14 ,  B60L15/007 ,  B60L2210/14 ,  B60L2210/40 ,  B60L2270/20 ,  B60R21/01 ,  G01P15/0891 ,  Y02T10/6217 ,  Y02T10/645 ,  Y02T10/7077 ,  Y02T10/7225 ,  Y02T10/7241

摘要： A metal plate (14) is buried in a gasket (12) of a case (10) for accommodating an electric device such as an inverter. The metal plate (14) is connected to a control board (400) in the case (10), and the voltage of the metal plate (14) is determined. A reference voltage is applied to the metal plate (14), and the case (10) is grounded. When the metal plate (14) is brought into contact with the case (10) or disconnected due to a crash, the voltage of the metal plate (14) is thereby changed, and the control board (400) detects a crash, based on the change in the voltage.

摘要翻译： 金属板（14）被埋在用于容纳诸如逆变器的电气装置的壳体（10）的垫圈（12）中。 金属板（14）连接到壳体（10）中的控制板（400），确定金属板（14）的电压。 参考电压施加到金属板（14），壳体（10）接地。 当金属板（14）与壳体（10）接触或由于碰撞而断开时，金属板（14）的电压因此改变，并且控制板（400）基于 电压的变化。

公开(公告)号：US20130002233A1

公开(公告)日：2013-01-03

申请号：US13173375

申请日：2011-06-30

申请人： Mahbub Hasan

发明人： Mahbub Hasan

IPC分类号： G01R25/00

CPC分类号： G01R27/14 ,  G01R31/2843

摘要： An integrated circuit includes an output terminal and a controller having a measurement input coupled to the output terminal, a first output adapted to couple to a current source to control a first current sourced into the output terminal, and a second output adapted to couple to a current sink to control a second current from the output terminal. The controller applies control signals to the first output and the second output to selectively enable the current source and disable the current sink during a first phase of a load detection period and to disable the current source and enable the current sink during a second phase of the load detection period. The controller detects the load coupled to the output terminal if a voltage at the measurement terminal during the first phase is substantially equal to a voltage at the measurement terminal during the second phase.

摘要翻译： 集成电路包括输出端子和具有耦合到输出端子的测量输入端的控制器，适于耦合到电流源以控制源自输出端子的第一电流的第一输出端和适于耦合到输出端子的第二输出端 电流吸收器，用于控制来自输出端子的第二电流。 控制器将控制信号施加到第一输出端和第二输出端，以在负载检测周期的第一阶段期间选​​择性地启用电流源并禁用电流接收器，并且在第二阶段期间禁用电流源并使能电流吸收器 负载检测周期。 如果第一阶段期间测量端子处的电压基本上等于第二阶段期间测量端子处的电压，则控制器检测耦合到输出端子的负载。

公开(公告)号：US08310267B2

公开(公告)日：2012-11-13

申请号：US12823674

申请日：2010-06-25

申请人： Toru Sekiguchi ,  Tsuyoshi Eda

发明人： Toru Sekiguchi ,  Tsuyoshi Eda

IPC分类号： G01R31/02 ,  G01R31/3187

CPC分类号： G01R31/2853 ,  G01R27/14

摘要： In order to reduce the number of electrodes included in test patterns, the semiconductor integrated circuit includes, a plurality of first and second chains, a first common electrode connected to one end of each first chain, a second common electrode connected to one end of each second chain, and a plurality of selection electrodes. Each selection electrode is connected to the other end of any one of the plurality of first chains and to the other end of any one of the plurality of second chains. When a test target chain is selected from the plurality of first chains, a first reference voltage is applied to the first common electrode, a second reference voltage is applied to a target selection electrode that is connected to the test target chain, and a current flowing in the target selection electrode is measured to obtain a resistance value of the test target chain.

摘要翻译： 为了减少包括在测试图案中的电极的数量，半导体集成电路包括多个第一和第二链，连接到每个第一链的一端的第一公共电极，连接到每个第一链的一端的第二公共电极 第二链和多个选择电极。 每个选择电极连接到多个第一链中的任一个的另一端和多个第二链中的任一个的另一端。 当从多个第一链中选择测试目标链时，将第一参考电压施加到第一公共电极，将第二参考电压施加到连接到测试目标链的目标选择电极，并且流过电流 测量目标选择电极以获得测试目标链的电阻值。

公开(公告)号：US08081025B1

公开(公告)日：2011-12-20

申请号：US12787072

申请日：2010-05-25

申请人： Kan Li

发明人： Kan Li

IPC分类号： G05F1/46

CPC分类号： G01R35/005 ,  G01R27/14

摘要： A biasing device can supply a bias voltage to bias-able element by coupling a bias circuit to the bias-able element, coupling a state adjusting device to the biasing circuit, configuring the state adjusting device to 1) increase an initial biasing voltage by a first amount when an intermediate voltage threshold exceeds a voltage drop across the bias-able element and 2) increment the increased initial bias voltage by a second amount, where the second amount is a fraction of the first amount, until the voltage drop across the bias-able element substantially equals a predetermined bias voltage. The bias circuit of the biasing device can include a variable resistance, which is controlled by the state adjusting device and configured to vary the biasing voltage, in series with the bias-able element. The variable resistance can include a first variable resistance coupled in series to a first terminal of the bias-able element and a second variable resistance coupled in series to a second terminal of the bias-able element.

摘要翻译： 偏置装置可以通过将偏置电路耦合到可偏置元件来将偏置电压提供给可偏置元件，将状态调整装置耦合到偏置电路，将状态调整装置配置为1）将初始偏置电压增加一个 当中间电压阈值超过可偏置元件上的电压降时的第一量，以及2）将增加的初始偏置电压增加第二量，其中第二量是第一量的一部分，直到跨越偏置的电压降 该元件基本上等于预定的偏置电压。 偏置装置的偏置电路可以包括可变电阻，其由状态调整装置控制并且被配置为与偏置元件串联地改变偏置电压。 可变电阻可以包括串联耦合到可偏置元件的第一端子的第一可变电阻器和与可偏置元件的第二端子串联耦合的第二可变电阻器。

公开(公告)号：US20110084716A1

公开(公告)日：2011-04-14

申请号：US12996215

申请日：2008-08-18

申请人： Eiichi Nagao ,  Kentaro Taninouchi ,  Noboru Hosokawa ,  Tsuyoshi Amimoto ,  Kozo Tachibana ,  Hirotaka Muto ,  Junji Tanimura ,  Satoru Toyama

发明人： Eiichi Nagao ,  Kentaro Taninouchi ,  Noboru Hosokawa ,  Tsuyoshi Amimoto ,  Kozo Tachibana ,  Hirotaka Muto ,  Junji Tanimura ,  Satoru Toyama

IPC分类号： G01R27/08

CPC分类号： H01F27/14 ,  G01N27/92 ,  G01R27/14 ,  H01F27/402 ,  H01F2027/404

摘要： An object of the invention is to provide a diagnostic method for an oil-filled electrical device that considers a temperature distribution in the oil-filled electrical device and enables accurate diagnosis to be conducted even when the method is applied to diagnosis of an actually operating device, and further provide a method with which such diagnosis of an oil-filled electrical device can be conducted from a component analysis value of an insulating oil in the oil-filled electrical device. The invention is a diagnostic method for an oil-filled electrical device including in an insulating oil a metal part wrapped with insulating paper, and determines that a time when a surface resistivity of a maximum precipitation site where metal sulfide is most precipitated on the insulating paper reaches a preset surface resistivity management value is a time of occurrence of an abnormality.

摘要翻译： 本发明的目的是提供一种充油电气装置的诊断方法，其考虑充油电气装置中的温度分布，并且即使当该方法应用于实际操作装置的诊断时也能够进行准确的诊断 并且还提供了一种通过充油电气装置中的绝缘油的成分分析值来进行充油电气装置的这种诊断的方法。 本发明是一种充油电气装置的诊断方法，其包括绝缘油中的绝缘纸包裹的金属部件，并且确定在绝缘纸上金属硫化物最沉淀的最大析出位置的表面电阻率 达到预设的表面电阻率管理值是发生异常的时间。

公开(公告)号：US07898268B2

公开(公告)日：2011-03-01

申请号：US12032260

申请日：2008-02-15

申请人： Derek Bernardon ,  Dieter Haerle

发明人： Derek Bernardon ,  Dieter Haerle

IPC分类号： G01R27/08

CPC分类号： G01R27/14

摘要： A circuit and method for capacitor effective series resistance measurement. One embodiment provides a method for measuring the effective series resistance of a capacitor having a capacitor voltage. The method includes amplifying the capacitor voltage with an AC coupled amplifier yielding a first amplified signal. The capacitor is discharged with a constant current for a measurement time thus causing a voltage swing of the capacitor voltage due to a voltage drop across the effective series resistance. The capacitor voltage is amplified with the AC coupled amplifier yielding a second amplified signal being dependent on the voltage swing. The effective series resistance is calculated from the first and the second amplified signals.

摘要翻译： 电容器有效串联电阻测量的电路和方法。 一个实施例提供了一种用于测量具有电容器电压的电容器的有效串联电阻的方法。 该方法包括用产生第一放大信号的AC耦合放大器放大电容器电压。 电容器以恒定电流放电一段测量时间，从而导致由于有效串联电阻两端的电压降引起的电容器电压的电压摆幅。 电容电压用AC耦合放大器放大，产生取决于电压摆幅的第二放大信号。 从第一和第二放大信号计算有效的串联电阻。

公开(公告)号：US20100171645A1

公开(公告)日：2010-07-08

申请号：US12631998

申请日：2009-12-07

申请人： CHUN CHEUNG ,  WEIHONG QIU ,  ROBERT H. ISHAM ,  MIR MAHIN

发明人： CHUN CHEUNG ,  WEIHONG QIU ,  ROBERT H. ISHAM ,  MIR MAHIN

IPC分类号： H03M1/12

CPC分类号： H03M1/20 ,  G01R27/14

摘要： An integrated circuit including a single input pin for determining a value associated with a resistor divider. The circuit includes first circuitry for determining a resistor ratio of the resistor divider through the single input pin. A first register stores a first group of bits representing the resistor ratio. The first group of bits comprises the least significant bits of the value. Second circuitry determines an equivalent resistance of the resistor divider through the single input pin. A second register stores a second group of bits representing the equivalent resistance. The second group of bits comprises the most significant bits of the value associated with the resistor divider.

摘要翻译： 包括用于确定与电阻分压器相关联的值的单个输入引脚的集成电路。 该电路包括用于通过单个输入引脚确定电阻分压器的电阻比的第一电路。 第一寄存器存储表示电阻器比率的第一组位。 第一组比特包括该值的最低有效位。 第二个电路通过单个输入引脚确定电阻分压器的等效电阻。 第二寄存器存储表示等效电阻的第二组位。 第二组位包括与电阻分压器相关联的值的最高有效位。

公开(公告)号：US20100145640A1

公开(公告)日：2010-06-10

申请号：US12331748

申请日：2008-12-10

申请人： Esau Aguinaga ,  Norberto Hernandez ,  Jesus Carmona

发明人： Esau Aguinaga ,  Norberto Hernandez ,  Jesus Carmona

IPC分类号： G01R27/26

CPC分类号： G01R27/2605 ,  G01R27/14 ,  G01R27/2611

摘要： A method is provided for estimating an electrical parameter of a circuit-under-test (e.g., resistance, capacitance and/or inductance). The method acquires samples during a plurality of charging cycles rather than during just one, which allows an extended overall time period to acquire such samples. The first step involves defining a major sampling period having a plurality of minor sampling periods. A number of steps are performed for each minor sampling period: applying an excitation signal to the circuit-under-test to produce a respective induced, response signal and acquiring a respective sample of the induced signal at a respective predetermined deferral time. In an embodiment where the circuit-under-test includes an unknown capacitance, the excitation signal may be a unit step while an increase in the induced signal is governed by a charging time constant, which itself is indicative of the unknown capacitive. The electrical parameter may be determined based on the acquired samples, which collectively constitute a composite response. The composite response is processed, for example, by fitting it to a normalized capacitive charging curve, to ascertain an estimate of the unknown capacitive.

摘要翻译： 提供了一种用于估计被测电路（例如电阻，电容和/或电感）的电参数的方法。 该方法在多个充电循环期间而不是仅在一个充电循环期间获取采样，这允许延长的整个时间周期来获取这样的采样。 第一步涉及定义具有多个次要采样周期的主要采样周期。 对于每个次要采样周期执行多个步骤：将激励信号施加到被测电路以产生相应的感应响应信号，并在相应的预定延迟时间获取感应信号的相应采样。 在被测电路包括未知电容的实施例中，激励信号可以是单位阶跃，而感应信号的增加由充电时间常数决定，充电时间常数本身表示未知电容。 可以基于获取的样本来确定电参数，这些样本共同构成复合响应。 复合响应例如通过将其拟合到归一化的容性充电曲线来进行处理，以确定未知电容的估计。