专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

US20240133921A1 VOLTAGE PROBE DEVICE WITH ADJUSTABLE BIAS 审中-公开
公开(公告)号：US20240133921A1
公开(公告)日：2024-04-25
申请号：US17972297
申请日：2022-10-23
申请人： Keysight Technologies, Inc.
发明人： Hal Robert Paver , Michael Thomas McTigue
IPC分类号： G01R1/07 , G01R15/22 , G01R19/00 , G01R19/252 , G01R31/302
CPC分类号： G01R1/071 , G01R15/22 , G01R19/0084 , G01R19/252 , G01R31/3025
摘要： A system and method are provided for compensating for thermal drift of a probe device. The method includes monitoring a first temperature of a laser source in a sensor head that receives output electrical signals from a DUT and outputs corresponding optical signals; monitoring a second temperature of a photoreceiver in a probe interface that converts the optical signals to electrical test signals to input to the test instrument; calculating a first value of a first bias voltage using the first temperature; applying the first value of the first bias voltage to the laser source to compensate for thermal drift when the first temperature is within a first predefined temperature range; calculating a second value of a second bias voltage for the photoreceiver using the second temperature; and applying the second value of the second bias voltage to the photoreceiver to compensate for thermal drift when the second temperature is within a second predefined temperature range.

2. 发明授权

US11953546B2 Integrated circuit and method for diagnosing an integrated circuit 有权
公开(公告)号：US11953546B2
公开(公告)日：2024-04-09
申请号：US18181128
申请日：2023-03-09
申请人： STMicroelectronics (Grenoble 2) SAS , STMicroelectronics (Alps) SAS
发明人： Etienne Auvray , Tommaso Melis , Philippe Sirito-Olivier
IPC分类号： G01R31/311 , G01R15/22 , G01R19/00 , G01R31/28
CPC分类号： G01R31/311 , G01R15/22 , G01R19/0084 , G01R31/2851
摘要： According to one aspect, an integrated circuit includes: an electronic module configured to generate a voltage at an output, and an electronic control circuit coupled to an output of the electronic module, the electronic control circuit comprising an emissive electronic component. The electronic control circuit is configured to cause the emissive electronic component to emit light radiation as a function of a value of the voltage at the output of the electronic module relative to a value of an operating voltage of the electronic module, and the operating voltage is specific thereto during normal operation of this electronic module. The light radiation emitted by the emissive electronic component is configured to diffuse to an outer face of the integrated circuit.

3. 发明授权

US11789043B2 Method and apparatus for measuring the current circulating through a conductor 有权
公开(公告)号：US11789043B2
公开(公告)日：2023-10-17
申请号：US17682491
申请日：2022-02-28
申请人： LUMIKER APLICACIONES TECNOLÓGICAS S.L.
发明人： Francisco Javier Bengoechea De La Llera
IPC分类号： G01R15/22 , G01R19/00
CPC分类号： G01R15/22 , G01R19/0092
摘要： Optical fiber-based measuring equipment for measuring the current circulating through at least one conductor. The measuring equipment includes an interrogator and a sensing portion connected to the interrogator and configured for being arranged in the proximity of the conductor. The sensing portion includes a first input branch and a second input branch coupled by means of a splitter to a first sensing branch and to a second sensing branch. The first sensing branch includes a first optical fiber winding arranged in the proximity of the conductor, and the second sensing branch includes a second optical fiber winding arranged in the proximity of the conductor, the first optical fiber winding and the second optical fiber winding having the same number of turns that are, however, wound in opposite directions.

4. 发明申请

US20180143260A1 BATTERY SYSTEM 审中-公开
公开(公告)号：US20180143260A1
公开(公告)日：2018-05-24
申请号：US15874548
申请日：2018-01-18
申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
发明人： Hikaru MIURA , Mutsumi KIKUCHI , Akihiko KUDOH , Tomonori KANAI
IPC分类号： G01R31/36 , H01M10/48 , B60L11/18 , G01R15/22 , B60L3/12 , H02J1/10 , H02J7/00 , H01M10/42
CPC分类号： G01R31/3658 , B60L3/12 , B60L11/1853 , B60L2240/547 , B60L2240/549 , G01R15/22 , G01R31/3606 , G01R31/3689 , H01M10/482 , H01M2010/4278 , H01M2220/20 , H02J1/10 , H02J7/0021 , Y02T10/7005 , Y02T10/705
摘要： A battery system includes a battery module having a plurality of assembled batteries. Battery monitoring circuits are provided to correspond to each of the assembled batteries of the battery module. A control circuit controls operation of the battery monitoring circuits. A first signal transmission path transmits signals that are input and output between the battery monitoring circuits and the control circuit. A first isolation element is connected to the control circuit, and a second isolation element is connected to the battery monitoring circuit. The first signal transmission path is isolated from the control circuit by the second isolation element. The electrical potential of the first signal transmission path is a floating potential in relation to the electrical potentials of the control circuit and battery monitoring circuits.

5. 发明申请

US20180109073A1 LIGHT-EMITTING DEVICE AND DISTANCE MEASUREMENT DEVICE 审中-公开
公开(公告)号：US20180109073A1
公开(公告)日：2018-04-19
申请号：US15570415
申请日：2016-04-28
申请人： TOPCON CORPORATION
发明人： Suguru MIYAGAWA , Yoshiaki GOTO , Yoshikatsu TOKUDA
IPC分类号： H01S5/042 , H01S5/0683 , H01S3/00 , G01R15/22 , H04B10/50
CPC分类号： H01S5/042 , G01R15/22 , G01S7/484 , G01S7/497 , G01S17/10 , H01S3/0057 , H01S5/0057 , H01S5/0683 , H01S5/06835 , H01S5/06837 , H04B10/504
摘要： Provided is a technology for suppressing variations in the waveform of a light emission pulse caused by various factors in a light-emitting device. A light-emitting device is provided with: a light source 101 in which relaxation oscillation occurs immediately after energization; a light source drive circuit 104 which includes a differentiation circuit 102 having a resistor and a capacitor connected in parallel, and in which a switching element 103 for voltage application is connected in series with the differentiation circuit; a power supply circuit 105; a light-reception element 107 which detects pulsed light emitted from the light source 101; and a voltage control unit 109 which controls an output voltage from the power supply circuit 105 in correspondence with the waveform of the detected pulsed light.

6. 发明申请

US20180100881A1 Apparatus and Method for Measuring Primary Voltage from the Secondary Side of an Isolated Power Supply 审中-公开
公开(公告)号：US20180100881A1
公开(公告)日：2018-04-12
申请号：US15289199
申请日：2016-10-09
申请人： LifeSafety Power, Inc.
发明人： Guang Liu
IPC分类号： G01R19/25 , G01R19/00
CPC分类号： G01R15/22 , G01R31/40
摘要： An apparatus includes a zero steady state error regulator with a first input terminal operatively coupled to an isolated power supply primary voltage. A PWM (pulse width modulation) generator is operative to generate two identical PWM signals, each having a duty ratio proportional to the primary voltage. The PWM generator has an input terminal operatively coupled to the zero steady state error regulator output terminal, and has a first output terminal operatively coupled to a second input terminal of the zero steady state error regulator to a provide a feedback signal. An optical coupler has an input terminal operatively coupled to a second output terminal of the PWM generator. A scaling circuit has an input terminal operatively coupled to the optical coupler output terminal and has a scaling circuit output terminal to provide a scaled PWM output signal having a duty ratio that is linearly proportional to the primary voltage.

7. 发明申请

US20170248660A1 Apparatus for Detecting Defect of Electric Power System 审中-公开
公开(公告)号：US20170248660A1
公开(公告)日：2017-08-31
申请号：US15383113
申请日：2016-12-19
申请人： LSIS CO., LTD.
发明人： Hae-Yong PARK , Chae-Yoon BAE , Jung-Wook SIM , Gyeong-Ho LEE
IPC分类号： G01R31/40 , G01R1/30 , G01R15/18
CPC分类号： G01R31/40 , G01R1/30 , G01R15/18 , G01R15/22 , G01R31/024 , H02H3/08 , H02H3/44
摘要： An apparatus for detecting a defect of an electric power system according to one embodiment of the present disclosure includes a first state signal output unit for outputting a first state signal corresponding to a magnetic force generated at a periphery of a line, a second state signal output unit for outputting a second state signal based on a magnitude of a line current and an increase ratio thereof, and a determination unit for determining whether the electric power system is defective or not based on the first state signal and the second state signal.

8. 发明授权

US09279832B2 Method and apparatus for measuring AC voltages 有权
标题翻译：交流电压测量方法和装置
公开(公告)号：US09279832B2
公开(公告)日：2016-03-08
申请号：US13632601
申请日：2012-10-01
申请人： Enphase Energy, Inc.
发明人： Martin Fornage
IPC分类号： G01R19/00 , G01R31/08 , G06F19/00 , G01R15/22 , G01R19/25 , G01R1/20
CPC分类号： G01R15/22 , G01R1/203 , G01R19/0084 , G01R19/0092 , G01R19/2503
摘要： A method and apparatus for measuring an AC voltage. In one embodiment, the apparatus includes an AC voltage monitoring circuit, coupled to at least one AC line, for producing a digital representation of a voltage on the at least one AC line, processing the digital representation to create a data stream containing information regarding the digital representation, and coupling the data stream through an isolation device to form an output signal.
摘要翻译：一种用于测量AC电压的方法和装置。在一个实施例中，该装置包括耦合到至少一个AC线的AC电压监控电路，用于产生至少一个AC线路上的电压的数字表示，处理数字表示以创建包含关于数字表示，以及通过隔离装置耦合数据流以形成输出信号。

9. 发明授权

US08847654B2 Controlling circuit for analog measurement module and controlling module thereof 有权
标题翻译：模拟测量模块及其控制模块的控制电路
公开(公告)号：US08847654B2
公开(公告)日：2014-09-30
申请号：US13167730
申请日：2011-06-24
申请人： Yang-Han Lee , Yung-Yu Wu , Huei-Huang Chen
发明人： Yang-Han Lee , Yung-Yu Wu , Huei-Huang Chen
IPC分类号： H03L5/00 , G01R15/22
CPC分类号： G01R15/22
摘要： In a controlling circuit, a photo coupler is used for isolating noises, and a general purpose amplifier is used for adjusting a gain, so that a logic tester may test analog signals in cooperation with relays having different specifications and operating voltage level differences in an analog measurement module. A shift register of each controlling circuit of a controlling module also transmits a test data signal to a next stage controlling circuit, so that a logic tester may simultaneously output a plurality of bits to multiple controlling circuits and multiple analog measurement modules by using merely one I/O port.
摘要翻译：在控制电路中，光耦合器用于隔离噪声，通用放大器用于调节增益，因此逻辑测试器可以与模拟信号中具有不同规格和工作电压电平差的继电器配合测试模拟信号测量模块控制模块的每个控制电路的移位寄存器还将测试数据信号发送到下一级控制电路，使得逻辑测试器可以通过仅使用一个I同时将多个位输出到多个控制电路和多个模拟测量模块 / O端口。

10. 发明申请

US20110291641A1 VOLTAGE DETECTION AND MEASUREMENT CIRCUIT 有权
标题翻译：电压检测和测量电路
公开(公告)号：US20110291641A1
公开(公告)日：2011-12-01
申请号：US12787188
申请日：2010-05-25
申请人： Ravi Nanayakkara
发明人： Ravi Nanayakkara
IPC分类号： G01R1/20
CPC分类号： G01R15/22 , G01R19/0084 , G01R19/155
摘要： A voltage detection and measurement circuit is provided. The circuit includes a first Zener diode operatively coupled to an AC power input line and a second Zener diode operatively coupled to a reference voltage line. The first and second Zener diodes are configured to pass portions of input AC voltage from the AC power input line to generate output waveforms. The circuit also includes an optocoupler coupled to the first and second Zener diodes to receive the output waveforms from the first and second Zener diodes to detect the input AC voltage and a processing circuit configured to receive the output waveforms from the optocoupler and to determine a magnitude of the input AC voltage based upon the output waveforms
摘要翻译：提供电压检测和测量电路。电路包括可操作地耦合到AC电力输入线的第一齐纳二极管和可操作地耦合到参考电压线的第二齐纳二极管。第一和第二齐纳二极管被配置为通过来自AC电力输入线的输入AC电压的一部分来产生输出波形。电路还包括耦合到第一和第二齐纳二极管的光耦合器，以接收来自第一和第二齐纳二极管的输出波形以检测输入AC电压，以及处理电路，其被配置为从光耦合器接收输出波形并确定幅度的输入交流电压

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式