141 |
Detection of disturbances of a power supply |
US15076955 |
2016-03-22 |
US10067200B2 |
2018-09-04 |
Bruno Leduc; Pascal Bernon; Stephane Clin |
A circuit includes, in series between a first terminal and a second terminal of application of a power supply voltage, and first and second branches. The first branch includes a first transistor and a first current source coupled to the first transistor. The second branch includes a resistive element, a second transistor coupled to the resistive element and forming a current mirror with the first transistor and a second current source coupled to the second transistor. The resistive element conditions a threshold of detection of a variation of the power supply voltage. |
142 |
POWER INDUCTOR, BOARD HAVING THE SAME, AND CURRENT MEASUREMENT METHOD USING THE SAME |
US15790640 |
2017-10-23 |
US20180238936A1 |
2018-08-23 |
Sang Jin PARK |
A power inductor includes: a body including a magnetic material; an internal coil disposed in the body and including a plurality of coil patterns; and a sensing coil disposed on the body and facing the internal coil. |
143 |
Systems and methods for voltage sensing |
US15397588 |
2017-01-03 |
US10054619B2 |
2018-08-21 |
Miguel Garcia Clemente; Philipp Leuner; Thomas Alois Zoels; Bertrand Bastien; Alvaro Jorge Mari Curbelo |
Systems and methods are provided to measure a voltage across a two-state dipole. The systems and methods measure voltages across two measurement paths of operational circuitry at first and second sensor terminals. The operational circuitry is configured to decouple the first and second sensor terminal based on a dipole voltage. The systems and methods further estimate the dipole voltage based on the voltages of the two measurement paths. |
144 |
SYSTEMS AND METHODS FOR VOLTAGE SENSING |
US15397588 |
2017-01-03 |
US20180188299A1 |
2018-07-05 |
Miguel Garcia Clemente; Philipp Leuner; Thomas Alois Zoels; Bertrand Bastien; Alvaro Jorge Mari Curbelo |
Systems and methods are provided to measure a voltage across a two-state dipole. The systems and methods measure voltages across two measurement paths of operational circuitry at first and second sensor terminals. The operational circuitry is configured to decouple the first and second sensor terminal based on a dipole voltage. The systems and methods further estimate the dipole voltage based on the voltages of the two measurement paths. |
145 |
Arrangement Having Two Redundant Modules |
US15845921 |
2017-12-18 |
US20180172740A1 |
2018-06-21 |
Dirk Marenski |
An arrangement having two redundant modules that monitor one another and that each contain a current or voltage source, which is connected to a first line terminal via a first controllable switch and a first current sensor, wherein each module also has a second line terminal and a ground terminal, between which lies a second current sensor in series with a second controllable switch, where each module, when in the functioning state, closes the controllable switches contained therein, and contains a monitoring device connected to the two current sensors of the modules, the monitoring device generating a monitoring signal identifying the corresponding other module as functioning if at least one of the two current sensors detects a current flow. |
146 |
NON-CONTACT VOLTAGE MEASUREMENT SYSTEM |
US15345256 |
2016-11-07 |
US20180128858A1 |
2018-05-10 |
Paul Andrew Ringsrud; Clark N. Huber; Michael F. Gallavan |
Systems and methods for measuring alternating current (AC) voltage of an insulated conductor (e.g., insulated wire) are provided, without requiring a galvanic connection between the conductor and a test electrode or probe. A non-galvanic contact (or “non-contact”) voltage measurement system includes a variable capacitance subsystem which operates to generate a variable capacitive voltage between an insulated conductor under test and earth ground. During measurement, the non-contact voltage measurement system varies the capacitance of the variable capacitance subsystem to change the impedance of a capacitive divider circuit between the insulated conductor under test and earth ground. By sequentially making two (or three) measurements across the variable capacitance subsystem, the AC voltage of the insulated conductor can be determined without requiring any galvanic connection to the insulated conductor. The determined AC voltage of the insulated conductor may then be presented to an operator and/or communicated to an external device. |
147 |
Directional coupler |
US14889490 |
2013-05-06 |
US09964571B2 |
2018-05-08 |
Andreas Andrei; Raimon Göritz |
A directional coupler is configured to provide a forward and/or a backward signal derived from a high-frequency signal. The directional coupler comprises a coupling element coupled to a main line, wherein the main line is configured to transport the high frequency signal. The directional coupler further comprises a signal line connecting the coupling element to a measuring port. The signal line comprises a defected ground structure inserted between the coupling element and the measuring port. |
148 |
Deviation compensation method of potential transformer |
US14693742 |
2015-04-22 |
US09866137B2 |
2018-01-09 |
Yong Kil Choi |
A deviation compensation method of a potential transformer is provided. The deviation compensation method includes: providing first to Nth potential transformers to be installed at different locations in a high voltage direct current (HVDC) transmission system; supplying a first voltage to the first to Nth potential transformers provided; measuring voltage values output through the first to Nth transformers by the first voltage supplied; determining whether there is a deviation between the measured voltage values; and determining compensation values for correcting the measured voltage values to the same voltage value when there is the deviation. |
149 |
HF measuring probe contacting assembly |
US15126897 |
2015-01-13 |
US09804195B2 |
2017-10-31 |
Roland Neuhauser |
A contacting assembly, in particular an HF measuring tip, having a carrier, on which a conductor structure is arranged, wherein the conductor structure has, at a contact end, at least one contact element protruding from the carrier for electrically contacting at least one contact point of a test specimen, and wherein the conductor structure has at least one impedance converter, wherein the impedance converter has a conductor segment having a gradually tapered or expanding cross-section. |
150 |
ARRANGEMENT AND METHOD FOR SWITCHING OPEN CONTACT GAPS USING SWITCHING DEVICES |
US15513506 |
2015-08-26 |
US20170309427A1 |
2017-10-26 |
Benjamin Sewiolo; Andreas Ziroff |
The invention relates to an arrangement and a method for switching clearances between contacts by means of switching devices, wherein an energy provides an actuator energy for at least one switching device, in particular a vacuum interrupter. |
151 |
CURRENT DETECTING DEVICE AND CURRENT DETECTING RESISTOR |
US15516179 |
2015-10-22 |
US20170307658A1 |
2017-10-26 |
Satoshi CHIKU; Takanori KIKUCHI |
Provided is a current detecting device comprising a current detecting resistor including a pair of electrodes and a resistive element; a pair of lands on which the current detecting resistor is adapted to be mounted; connection portions adapted to connect the two electrodes and the two lands, respectively; and a pair of wires connected to the two respective electrodes and adapted to detect a voltage. Positions where the two wires are connected to the two respective electrodes are located in regions on a further inner side than inner ends of the connection portions. |
152 |
Power source system with multiple electrical outputs |
US15209674 |
2016-07-13 |
US09735588B2 |
2017-08-15 |
John M. Gilbert; David L. Epperson; Paul A. Ringsrud |
A system providing a power source includes an electrical input and multiple electrical outputs. The electrical input is couplable to a current clamp that selectively clamps around at least one electrical conductor. A transformer coupled to the electrical input receives an input electrical signal from the at least one electrical conductor and produces an output electrical signal that is electrically isolated from the input electrical signal. Conversion circuitry electrically converts the output electrical signal to a converted electrical signal that is usable to power multiple electrical devices. Distribution circuitry distributes the converted electrical signal to the multiple electrical outputs, wherein each electrical output is couplable to an electrical device to provide power to the electrical device. |
153 |
BATTERY SENSOR DEVICE |
US15327373 |
2015-09-08 |
US20170199084A1 |
2017-07-13 |
SHINYA KIMURA |
A battery sensor device includes a terminal, bus bars, a board, a temperature sensor, and a heat transfer member. The terminal includes a clamp part fitted to a terminal of the battery. A load-side terminal is installed on one of the bus bars. The bus bars electrically connect the clamp part and the load-side terminal via a shunt resistance. The board is electrically connected to the bus bars to overlap the bus bars, and includes a protruding part which protrudes from the bus bars toward the clamp part. The temperature sensor is installed on the protruding part of a surface which faces the bus bars of the board. The heat transfer member is provided between the temperature sensor and the terminal. |
154 |
Current transformer with enhanced temperature measurement functions |
US14757395 |
2015-12-23 |
US20170184458A1 |
2017-06-29 |
Kevin M. Jefferies; Benjamin W. Edwards; Matthew L. White; Konstantin Alexander Filippenko; Richard Karl Weiler |
The present invention provides a method of using a current transformer for a temperature sensing device. The method determines the temperature of the current transformer's secondary winding by injecting a DC current into the secondary winding, measuring a voltage across the secondary winding, calculating the resistance of the secondary winding from the voltage induced into the secondary winding by the injected DC current and determining the secondary winding temperature by calculations or a comparison with verified resistance/temperature combinations. |
155 |
AN HF MEASURING PROBE CONTACTING ASSEMBLY |
US15126897 |
2015-01-13 |
US20170153274A1 |
2017-06-01 |
Roland Neuhauser |
A contacting assembly, in particular an HF measuring tip, having a carrier, on which a conductor structure is arranged, wherein the conductor structure has, at a contact end, at least one contact element protruding from the carrier for electrically contacting at least one contact point of a test specimen, and wherein the conductor structure has at least one impedance converter, wherein the impedance converter has a conductor segment having a gradually tapered or expanding cross-section. |
156 |
CURRENT SENSE AMPLIFIER WITH COMMON MODE REJECTION |
US15069518 |
2016-03-14 |
US20170138990A1 |
2017-05-18 |
Vamsikrishna Parupalli; Itisha Tyagi |
The overall performance of a current sense amplifier system may be improved by increasing the common mode rejection of the system. In particular, improved current sense amplifier systems of this disclosure may be configured to use a first ADC path to measure a current flowing through a device, a second ADC path to measure a common mode value, a memory element to store a calibration value, and a summer block to output a voltage proportional to the measured current through the device by correcting a voltage value output by the first ADC path based on the measured common mode value of the second ADC path and the stored calibration value. |
157 |
DETECTION OF DISTURBANCES OF A POWER SUPPLY |
US15076955 |
2016-03-22 |
US20170115359A1 |
2017-04-27 |
Bruno LEDUC; Pascal BERNON; Stephane CLIN |
A circuit includes, in series between a first terminal and a second terminal of application of a power supply voltage, and first and second branches. The first branch includes a first transistor and a first current source coupled to the first transistor. The second branch includes a resistive element, a second transistor coupled to the resistive element and forming a current mirror with the first transistor and a second current source coupled to the second transistor. The resistive element conditions a threshold of detection of a variation of the power supply voltage. |
158 |
Current detection resistor |
US14423907 |
2013-08-21 |
US09625494B2 |
2017-04-18 |
Keishi Nakamura; Koichi Hirasawa; Kenji Kameko |
Provided is a current detection resistor that is small and that inhibits influence of the skin effect due to high frequency current. The resistor includes a resistor body (11) and at least a pair of electrodes (12), wherein the resistor body (11) is configured in a pillar-shape having diameter of 4 mm or less disposed between the electrodes. Each of the electrodes (12) is made to be longer in the direction in which the electrodes are placed and longer than twice the distance between the electrodes, which sandwich the resistor body. Further, each of electrodes (12) is square pillar-shaped, and the resistor body is fixed to roughly to center of the electrode in cross-section. |
159 |
ELECTRICAL ISOLATION FOR A CAMERA IN A TEST AND MEASUREMENT TOOL |
US15262820 |
2016-09-12 |
US20170078544A1 |
2017-03-16 |
Paul A. Ringsrud; Clark N. Huber |
Analysis systems can include both a test and measurement tool for generating measurement data representative of at least one parameter of a device under test and an imaging tool for generating image data representative of a target scene. A processor in communication with the test and measurement circuit and the imaging tool can process measurement data and image data. Isolation circuitry can be configured to provide isolation between the imaging tool and the test and measurement circuit while permitting communication between the processor and each of the test and measurement tool and the imaging tool. A display for presenting measurement data and/or image data can be electrically isolated from the test and measurement tool. |
160 |
POWER SOURCE SYSTEM WITH MULTIPLE ELECTRICAL OUTPUTS |
US15209674 |
2016-07-13 |
US20160322831A1 |
2016-11-03 |
John M. Gilbert; David L. Epperson; Paul A. Ringsrud |
A system providing a power source includes an electrical input and multiple electrical outputs. The electrical input is couplable to a current clamp that selectively clamps around at least one electrical conductor. A transformer coupled to the electrical input receives an input electrical signal from the at least one electrical conductor and produces an output electrical signal that is electrically isolated from the input electrical signal. Conversion circuitry electrically converts the output electrical signal to a converted electrical signal that is usable to power multiple electrical devices. Distribution circuitry distributes the converted electrical signal to the multiple electrical outputs, wherein each electrical output is couplable to an electrical device to provide power to the electrical device. |