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1. 发明授权

US4788493A Apparatus for detecting direction of electric power flow 失效
标题翻译：用于检测电力流动方向的装置
公开(公告)号：US4788493A
公开(公告)日：1988-11-29
申请号：US140869
申请日：1988-01-06
申请人： J. Michael Liptak
发明人： J. Michael Liptak
IPC分类号： G01R19/14 , G01R21/127 , G01R7/02 , H02P3/14
CPC分类号： G01R19/14 , G01R21/127
摘要： An apparatus for measuring the direction of power flow through conductors connecting a load to a source of alternating electric current, the load being capable of generating electric current, and the source of alternating electric current being capable of accepting power flow from the load. The invention comprises at least one wattmeter connected so that the sum of their outputs is proportional to the power flow through the conductors and the sign of the sum of their outputs is indicative of the direction of the power flow. A detector is provided for detecting the sign of the output of the at least one wattmeter. The detector is capable of generating an indicator signal. The indicator signal has a first value when the power flows from the source of alternating electric current into the load and the indicator signal has a second value when power flows from the load into the source of alternating electric current. The wattmeters have at least one switch having contacts that close in response to application of pulsed voltage to the load. At least one sense electric current substantially proportional to the load current flows through the contacts so that the average current flow, including the sign, through the contacts is proportional to the electric power flowing into or out of the load. Also the wattmeters may have at least one switch which closes in response to pulsed current and have a sense electric current proportional to a load voltage.
摘要翻译：一种用于测量通过将负载连接到交流电源的导体的功率流的方向的测量装置，负载能够产生电流，并且交流电源能够接受来自负载的功率流。本发明包括至少一个瓦特表，其连接成使得其输出的总和与通过导体的功率流成比例，并且其输出之和的符号表示功率流的方向。提供了一种检测器，用于检测至少一个瓦特计的输出的符号。检测器能够产生指示信号。当功率从交流电源流入负载时，指示信号具有第一值，当功率从负载流入交流电源时，指示信号具有第二值。功率计具有至少一个开关，其具有响应于向负载施加脉冲电压而关闭的触点。与负载电流基本成比例的至少一个感测电流流过触点，使得通过触点的包括符号的平均电流与流入或流出负载的电力成比例。此外，功率表可以具有至少一个开关，其响应于脉冲电流而闭合并且具有与负载电压成比例的感测电流。

2. 发明授权

US3466543A Electrical meter system employing electrolytic coulometers as measuring instruments 失效
标题翻译：电子仪器系统用于测量仪器的电解质计
公开(公告)号：US3466543A
公开(公告)日：1969-09-09
申请号：US3466543D
申请日：1968-03-14
申请人： CLEVELAND TECHNICAL CENTER INC
发明人： LOMBARDO LEO R
IPC分类号： G01R22/02 , G01R7/02 , G01R27/08
CPC分类号： G01R22/02 , B60L2200/26

3. 发明授权

US3454879A Direct current summing circuit with compensating means 失效
标题翻译：具有补偿手段的直接电流峰值电路
公开(公告)号：US3454879A
公开(公告)日：1969-07-08
申请号：US3454879D
申请日：1966-03-17
申请人： INT STANDARD ELECTRIC CORP
发明人： SMITKA WOLFGANG
IPC分类号： G06G7/14 , G08C13/02 , H03F3/387 , G01R7/02
CPC分类号： H03F3/387 , G06G7/14 , G08C13/02

4. 发明授权

US1732987A Telemetric summation system 失效
公开(公告)号：US1732987A
公开(公告)日：1929-10-22
申请号：US17408327
申请日：1927-03-09
申请人： GEN ELECTRIC
发明人： ROWELL RALPH M
IPC分类号： G01R7/02
CPC分类号： G01R7/02

5. 发明公开

US20240168079A1 APPARATUS AND METHOD FOR MEASURING DYNAMIC ON-RESISTANCE OF NITRIDE-BASED SWITCHING DEVICE 审中-公开
公开(公告)号：US20240168079A1
公开(公告)日：2024-05-23
申请号：US17778024
申请日：2022-03-03
申请人： INNOSCIENCE (SUZHOU) SEMICONDUCTOR CO., LTD.
发明人： Chang CHEN
IPC分类号： G01R31/26 , G01R7/02
CPC分类号： G01R31/2621 , G01R7/02 , G01R31/2601
摘要： The present disclosure provides an apparatus for measuring dynamic on-resistance of a nitride-based device under test (DUT) comprising a control terminal connected to a controller being configured to generate a control signal to switch on and off the DUT. The apparatus comprising a first clamping module, a second clamping module and a driving module. The driving module is configured to sense a state change of the DUT and generate a control signal to switch on and off the first clamping module based on the state change of the DUT such that when the DUT is at an on-state, an output voltage across the first and second output nodes is clamped to indicate a drain-source voltage of the DUT. The provided apparatus can address the overshoot issues in measurement of dynamic on-resistance of GaN device.

6. 发明申请

US20190018046A1 CURRENT SENSOR AND CURRENT SENSOR MODULE 审中-公开
公开(公告)号：US20190018046A1
公开(公告)日：2019-01-17
申请号：US16136325
申请日：2018-09-20
申请人： Murata Manufacturing Co., Ltd.
发明人： Yasuhiro SHIMIZU
IPC分类号： G01R15/20 , G01R19/00 , G01R31/36 , G01R33/02 , G01R7/02
摘要： A current sensor includes a conductor through which current to be measured flows and which has dimensions in a length direction, a width direction, and a height direction, and first and second magnetic sensors that detect the strength of a magnetic field generated by the current. Each of the first and second magnetic sensors is positioned in an area between first and second conductor portions in the width direction and an area extending from one end to the other end in the height direction of the first and second conductor portions.

7. 发明授权

US3586168A Electronic can reject system 失效
标题翻译：电子防盗系统
公开(公告)号：US3586168A
公开(公告)日：1971-06-22
申请号：US3586168D
申请日：1969-11-10
申请人： CONTINENTAL CAN CO
发明人： OSHEFF SHELDON , PESCE CARL A
IPC分类号： G01R7/02 , G01N25/72 , B07C5/346
CPC分类号： G01N25/72
摘要： An electronic circuit for receiving the output of one or more detector units which may pick up the infrared emission from a welded seam as it passes by the detector unit or units. The circuit sorts out high and low signals to give an indication of hot or cold spots which indicate deficient welding. The signal is used to operate indicators, counters, and a weld reject mechanism or marking means.

8. 发明授权

US3021514A Voltage comparator 失效
标题翻译：电压比较器
公开(公告)号：US3021514A
公开(公告)日：1962-02-13
申请号：US72439858
申请日：1958-03-27
申请人： ITT
发明人： REGIS LAWRENCE J , RICHESON JR WILLIAM E
IPC分类号： G01R7/02 , G01R19/10 , G01R19/165 , G01R31/26
CPC分类号： G01R19/165 , G01R7/02 , G01R19/10 , G01R31/26

9. 发明授权

US10955443B2 Current sensor and current sensor module 有权
公开(公告)号：US10955443B2
公开(公告)日：2021-03-23
申请号：US16136325
申请日：2018-09-20
申请人： Murata Manufacturing Co., Ltd.
发明人： Yasuhiro Shimizu
IPC分类号： G01R15/20 , G01R33/09 , G01R33/06 , G01R33/07 , G01R31/382 , G01R7/02 , G01R33/02 , G01R19/10 , G01R19/00
摘要： A current sensor includes a conductor through which current to be measured flows and which has dimensions in a length direction, a width direction, and a height direction, and first and second magnetic sensors that detect the strength of a magnetic field generated by the current. Each of the first and second magnetic sensors is positioned in an area between first and second conductor portions in the width direction and an area extending from one end to the other end in the height direction of the first and second conductor portions.

10. 发明授权

US10670642B2 Real time cognitive monitoring of correlations between variables 审中-公开
公开(公告)号：US10670642B2
公开(公告)日：2020-06-02
申请号：US15820301
申请日：2017-11-21
申请人： International Business Machines Corporation
发明人： Karl R. Erickson , Phil C. Paone , George F. Paulik , David P. Paulsen , Raymond A. Richetta , John E. Sheets, II , Gregory J. Uhlmann
IPC分类号： G01R27/26 , G01R29/24 , G06F7/02 , G06F7/00 , G01R7/02 , G01R7/00
摘要： Real time cognitive monitoring of correlations between variables including receiving, by a circuit, a first set of data results and a second set of data results, wherein each set of data results comprises binary data points; adding a unit of charge to a collection capacitor on the circuit for each of the first set of data results that indicates a positive data point; removing a unit of charge from the collection capacitor for each of the second set of data results that indicates a positive data point; and triggering a first sense amp on the circuit if the charge on the collection capacitor exceeds a high charge threshold, indicating that the positive data points in the first set of data results is greater than the positive data points in the second set of data results to a first statistical significance.

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