公开(公告)号：US20190238124A1

公开(公告)日：2019-08-01

申请号：US16224039

申请日：2018-12-18

申请人： RENESAS ELECTRONICS CORPORATION

发明人： Hideyuki TAJIMA

IPC分类号： H03K17/082 ,  G01R19/32 ,  G01K3/14

CPC分类号： H03K17/0822 ,  B60R16/02 ,  F16D48/066 ,  G01K3/14 ,  G01R19/32 ,  H03K2017/0806 ,  H03K2217/0063 ,  H03K2217/0072

摘要： In one semiconductor chip, driving transistors, a current sensor, and a temperature sensor for sensing a temperature of a driver area are arranged in a driver area, and a current sensing circuit, an analog-digital converter, and a temperature sensor for sensing a peripheral circuit area are arranged in a peripheral circuit area. A correction circuit unit corrects a digital sensed voltage from the analog-digital converter based on a sensing result of the temperature sensor of the driver area and a sensed result of the temperature sensor of the peripheral circuit area.

公开(公告)号：US20170254839A9

公开(公告)日：2017-09-07

申请号：US14850907

申请日：2015-09-10

申请人： Infineon Technologies Austria AG

发明人： Dieter DRAXELMAYR ,  Kofi MAKINWA ,  Saleh Heidary SHALMANY

IPC分类号： G01R19/32 ,  G01K7/01 ,  G01R15/14

CPC分类号： G01R19/32 ,  G01K7/01 ,  G01R1/20 ,  G01R15/146 ,  G01R19/00 ,  H01L29/73

摘要： In one embodiment, a shunt resistor is provided, comprising two terminals, a semiconductor substrate embodying at least one temperature sensor comprising at least a temperature sensitive element comprising at least one pn-junction, and at least two metal layers above the semiconductor substrate, at least the upper of the metal layer comprising a path that electrically connects the two terminals, whereby the temperature sensor is below and within the periphery of the upper metal layer.

公开(公告)号：US09678111B2

公开(公告)日：2017-06-13

申请号：US14877696

申请日：2015-10-07

申请人： NXP B.V.

发明人： Xiaoqun Liu ,  Siamak Delshadpour

IPC分类号： G01R1/20 ,  G01R15/14 ,  H03K3/011 ,  G01R19/00 ,  G01R19/32

CPC分类号： G01R15/146 ,  G01R19/0092 ,  G01R19/16571 ,  G01R19/32 ,  H03K3/011

摘要： A system can provide current detection in an integrated circuit (IC) chip while compensating for variations in circuit components resulting from process, voltage supply, temperature, or combinations thereof. The system can include the IC chip that has a power switch circuit that includes a power circuit path including a first transistor connected to a power source through a first conductive trace that has a first resistance value, and to a load by a second conductive trace having a second resistance value. A current detection circuit is configured to compensate for the variations in the power switch circuit using a sense circuit path that is configured to match process, voltage supply, and temperature variations in the power circuit path.

公开(公告)号：US20170162302A1

公开(公告)日：2017-06-08

申请号：US15316672

申请日：2015-06-08

申请人： KOA CORPORATION

发明人： Satoshi Chiku

IPC分类号： H01C1/148 ,  G01R19/00 ,  H01C7/13 ,  H01C7/06 ,  H01C7/10

CPC分类号： H01C1/148 ,  G01R19/00 ,  G01R19/32 ,  H01C1/14 ,  H01C1/144 ,  H01C7/06 ,  H01C7/10 ,  H01C7/13 ,  H01C17/28

摘要： Provided is a current detection resistor, which has a jumper function and a low resistance resistor function at the same time. The resistor is a metal plate resistor, which comprises a resistor body consisting of a metal material and a pair of electrodes consisting of a metal material having higher conductivity than the resistor body, wherein the resistor body is bonded between the electrodes. The pair of electrodes comprises a first electrode and a second electrode longer than the first electrode, wherein a slit is formed in the second electrode so that a portion of the second electrode becomes a terminal for voltage detection. The end of the slit does not reach the resistor body. The first electrode and the second electrode are respectively provided with mounting portions connecting to wiring patterns, and the resistor body is formed in the vicinity of the mounting portion of the first electrode.

公开(公告)号：US09627969B2

公开(公告)日：2017-04-18

申请号：US14287978

申请日：2014-05-27

申请人： Infineon Technologies Austria AG

发明人： Darryl Tschirhart ,  Benjamim Tang ,  Amir Babazadeh ,  Tim Ng

IPC分类号： H02M3/158 ,  G01R19/32 ,  H02M3/156 ,  G01R19/25 ,  H02M1/00

CPC分类号： H02M3/158 ,  G01R19/25 ,  G01R19/32 ,  H02M3/156 ,  H02M2001/0009

摘要： A current estimation method for a switching voltage regulator that delivers current to a load through an inductor includes measuring a voltage across a capacitor of an RC current sense network coupled in parallel with the inductor, generating an estimate of the current through the inductor based on the voltage measured across the capacitor of the RC current sense network and adjusting the estimate of the current through the inductor by a compensation filter that compensates for variation in the inductance of the inductor as a function of at least one of temperature and current.

公开(公告)号：US09568518B2

公开(公告)日：2017-02-14

申请号：US14759148

申请日：2014-01-28

申请人： Rohde & Schwarz GmbH & Co. KG

发明人： Toralf Bratfisch ,  Michael Katzer ,  Thomas Reichel

IPC分类号： G01R1/02 ,  G01R21/10 ,  G01R21/00 ,  G01R19/32 ,  G01R35/00 ,  G01R19/02

CPC分类号： G01R21/10 ,  G01R19/02 ,  G01R19/32 ,  G01R21/00 ,  G01R35/005

摘要： A measuring device for measuring a power of a measurement signal comprises an analog-processing unit (1) and a calibration unit (5) for the implementation of a calibration procedure. The analog-processing unit (1) provides two detector diodes (14, 15) connected in an antiparallel manner relative to a signal input (10) and an amplifier (50) for the amplification of signals which are derived from output signals of the detector diodes (14, 15). The analog-processing unit (1) further provides a chopper unit (28) which is connected at two terminals in series between the detector diodes (14, 15) and the amplifier (50). In this context, the calibration unit (5) comprises at least one current source, wherein the current sources (46, 47) is connected to at least one input terminal of the amplifier (50).

摘要翻译： 用于测量测量信号的功率的测量装置包括用于实现校准过程的模拟处理单元（1）和校准单元（5）。 模拟处理单元（1）提供相对于信号输入端（10）以反并联方式连接的两个检测二极管（14,15）和放大器（50），用于放大从检测器的输出信号导出的信号 二极管（14,15）。 模拟处理单元（1）还提供一个斩波器单元（28），该斩波单元串联连接在检测器二极管（14,15）和放大器（50）之间的两个端子处。 在本上下文中，校准单元（5）包括至少一个电流源，其中电流源（46,47）连接到放大器（50）的至少一个输入端。

公开(公告)号：US20170030992A1

公开(公告)日：2017-02-02

申请号：US14813273

申请日：2015-07-30

申请人： Hamilton Sundstrand Corporation

发明人： Gary L. Hess ,  Scott M. Covington ,  Loyal A. Wiens ,  Eric Petersen

IPC分类号： G01R35/00 ,  G01R19/32

CPC分类号： G01R35/00 ,  G01R19/32 ,  G01R35/005

摘要： A dynamic calibrating current sensor control system includes an input power supply that generates an input current and a current sensor interposed between the input power supply and the load. The current sensor is configured to output at least one current signal indicating a level of current delivered to the load. The dynamic calibrating current sensor control system also comprises an electronic switching control circuit that generates at least one control signal to selectively connect the input power supply to the load, and an electronic drift suppression circuit in signal communication with the current sensor and the switching control circuit. The drift suppression circuit is configured to generate a corrected current signal in response to applying an offset value to the current signal. The offset value cancels the drift current from the current signal in response to connecting the input power supply to the load.

摘要翻译： 动态校准电流传感器控制系统包括产生输入电流的输入电源和插在输入电源和负载之间的电流传感器。 电流传感器被配置为输出指示传送到负载的电流电平的至少一个电流信号。 动态校准电流传感器控制系统还包括产生至少一个控制信号以选择性地将输入电源连接到负载的电子开关控制电路，以及与电流传感器和开关控制电路进行信号通信的电子漂移抑制电路 。 漂移抑制电路被配置为响应于对当前信号应用偏移值而产生校正的电流信号。 响应于将输入电源连接到负载，偏移值抵消来自电流信号的漂移电流。

公开(公告)号：US20160377660A1

公开(公告)日：2016-12-29

申请号：US15187522

申请日：2016-06-20

申请人： ABB Technology AG

发明人： Georg Müller ,  Klaus Bohnert ,  Andreas Frank ,  Philippe Gabus

IPC分类号： G01R15/24 ,  G01R19/32

CPC分类号： G01R15/241 ,  G01R15/246 ,  G01R15/247 ,  G01R19/32

摘要： A fiber optic sensor and related method are described, with the sensor including a cross-coupling element in the optical path between a polarizing element and a sensing element, but separated from the sensing element itself; with the cross-coupling element generating a defined cross-coupling between the two orthogonal polarization states of the fundamental mode of a polarization maintaining fiber guiding light from the light source to the sensing element thus introducing a wavelength-dependent or temperature-dependent sensor signal shift to balance wavelength-dependent or temperature-dependent signal shifts due to other elements of the sensor, particularly signal shifts due to the wavelength dependence of the Faraday effect or the electro-optic effect constant.

摘要翻译： 描述了光纤传感器和相关方法，其中传感器包括在偏振元件和感测元件之间的光路中的交叉耦合元件，但是与感测元件本身分离; 交叉耦合元件在从光源到感测元件的保持光纤的基波模式的两个正交极化状态之间产生定义的交叉耦合，从而引入依赖于波长或依赖于温度的传感器信号 以平衡由于传感器的其他元件导致的波长依赖或温度依赖的信号偏移，特别是由于法拉第效应或电光效应常数的波长依赖性引起的信号偏移。

公开(公告)号：US20160313380A1

公开(公告)日：2016-10-27

申请号：US14696465

申请日：2015-04-26

申请人： Active-Semi, Inc.

发明人： Narasimhan Trichy

IPC分类号： G01R19/32 ,  G01R15/18

CPC分类号： G01R19/32 ,  G01R1/203 ,  G01R31/40

摘要： A system comprises an integrated circuit package, an inductor that is part of a power supply, and a printed circuit board (PCB) having a metal trace disposed directly below the inductor when viewed from a top-down perspective. The integrated circuit package includes a first terminal, a second terminal, and a novel inductor current detection and calibration circuit. The first terminal is coupled to a first end of the metal trace and the second terminal is coupled to a second end of the metal trace. During operation of the power supply, the novel circuit detects an OCP condition whereby an output current of the power supply exceeds an OCP level. The novel circuit detects the OCP condition in part by sensing a voltage across the metal trace. After calibration at room temperature, the novel circuit performs accurate OCP detection over a range of temperatures without using any temperature sensor near inductor.

摘要翻译： 系统包括集成电路封装，作为电源的一部分的电感器，以及当从上至下的角度观察时，具有设置在电感器正下方的金属迹线的印刷电路板（PCB）。 集成电路封装包括第一端子，第二端子和新颖的电感器电流检测和校准电路。 第一端子耦合到金属迹线的第一端，并且第二端子耦合到金属迹线的第二端。 在电源运行期间，新颖的电路检测到OCP状态，使得电源的输出电流超过OCP电平。 新颖的电路部分地通过感测金属轨迹上的电压来检测OCP状况。 在室温下校准后，新电路在温度范围内执行精确的OCP检测，而不需要在电感器附近使用任何温度传感器。

公开(公告)号：US20160266170A1

公开(公告)日：2016-09-15

申请号：US14658105

申请日：2015-03-13

申请人： Polycon Technology Co., Ltd.

发明人： Yu-Min WANG

IPC分类号： G01R15/14 ,  G01R19/32 ,  G01R19/00

CPC分类号： G01R19/32 ,  G01R1/203

摘要： A low ohmic current sensor capable of using untrimmed resistor to provide required resistance, including: an untrimmed resistor for a current to flow through; an adjustable amplifier unit, having an input port coupled with the untrimmed resistor to receive a current-sense voltage, an output port for providing an output voltage, and a control port for receiving at least one control signal to determine a voltage transfer curve relating the output voltage to the current-sense voltage; and a control unit, having a first port coupled with the control port to provide the at least one control signal, and a second port for accessing at least one control data, wherein the at least one control signal is generated according to the at least one control data.

摘要翻译： 一种低电阻电流传感器，能够使用未调整的电阻来提供所需的电阻，包括：电流流过的未调整电阻; 一个可调整放大器单元，具有与未整形电阻耦合的输入端口以接收电流检测电压，用于提供输出电压的输出端口和用于接收至少一个控制信号的控制端口，以确定与 输出电压到电流检测电压; 以及控制单元，其具有与所述控制端口耦合以提供所述至少一个控制信号的第一端口和用于访问至少一个控制数据的第二端口，其中所述至少一个控制信号根据所述至少一个 控制数据。