公开(公告)号：US08947101B2

公开(公告)日：2015-02-03

申请号：US13734581

申请日：2013-01-04

Applicant: Linear Technology Corporation

Inventor： Bernhard Helmut Engl

IPC: G01R35/00 ,  G01R17/10 ,  G01R27/14 ,  G01R1/20 ,  G01R27/16

CPC classification number: G01R35/005 ,  G01R1/203 ,  G01R17/105 ,  G01R27/14 ,  G01R27/16

Abstract: Method and system for measuring the resistance of a resistive structure having at least three nodes. A first calibration signal is determined by measuring a voltage at an output of the resistance structure when no calibration current is injected into a third node between the first and second nodes of the structure. A calibration current is then injected into the third node and a second calibration signal is determined. The absolute value of the difference between the first calibration signal and the second calibration signal is determined, the absolute value being proportional to a product of the resistance of the resistive structure and the calibration current.

Abstract translation: 用于测量具有至少三个节点的电阻结构的电阻的方法和系统。 当没有校准电流注入结构的第一和第二节点之间的第三节点时，通过测量电阻结构的输出端的电压来确定第一校准信号。 然后将校准电流注入到第三节点中，并且确定第二校准信号。 确定第一校准信号和第二校准信号之间的差的绝对值，绝对值与电阻结构的电阻与校准电流的乘积成比例。

公开(公告)号：US20170153296A1

公开(公告)日：2017-06-01

申请号：US15153222

申请日：2016-05-12

Applicant: LINEAR TECHNOLOGY CORPORATION

Inventor： Bernhard Helmut Engl ,  Robert Chiacchia ,  Robert C. Dobkin

IPC: G01R31/40 ,  H03M1/66 ,  G01R19/00 ,  H03M1/12

CPC classification number: G01R31/40 ,  G01R19/0084 ,  G01R31/42 ,  H03M1/12 ,  H03M1/1295 ,  H03M1/66

Abstract: A ripple monitoring circuit may generate information indicative of a failing component in a power supply. At least one input may receive a ripple signal from the power supply that has a ripple component. A quantization circuit may repeatedly quantize the amplitude of the ripple component. A ripple amplitude statistics counter bank may count and store the number of times that different quantized amplitudes or different ranges of quantized amplitudes of the ripple component occurred.A ripple monitoring circuit may generate information about a power supply. At least one input may receive a ripple signal from the power supply that has a ripple component. A ripple measurement circuit may measure a characteristic of the ripple component. A storage circuit may store information about the measurement. A comparison circuit may compare information stored in the storage circuit with a threshold value and indicate when the stored information meets or exceeds this threshold value.

公开(公告)号：US08909841B2

公开(公告)日：2014-12-09

申请号：US13645322

申请日：2012-10-04

Applicant: Linear Technology Corporation

Inventor： Bernhard Helmut Engl

IPC: G06F13/00

CPC classification number: G06F13/4072

Abstract: Method and system for configuring a serial interface. The system includes one or more input nodes each coupled to a corresponding serial bus. One or more output nodes are coupled to a respective serial bus, each output node having a respective driver. A voltage detection circuit determines the voltage at a configuration node. Mode of serial bus operation is based on the voltage level detected at the configuration node. In at least one mode of serial bus operation, the configuration node is used as a mode select input and power source for at least one output driver.

Abstract translation: 配置串行接口的方法和系统。 该系统包括一个或多个输入节点，每个输入节点耦合到对应的串行总线。 一个或多个输出节点耦合到相应的串行总线，每个输出节点具有相应的驱动器。 电压检测电路确定配置节点处的电压。 串行总线运行模式基于配置节点检测到的电压电平。 在串行总线操作的至少一种模式中，配置节点用作至少一个输出驱动器的模式选择输入和电源。