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公开(公告)号：US11639946B2
公开(公告)日：2023-05-02
申请号：US17668230
申请日：2022-02-09
发明人： Hiroaki Yamazaki
摘要： According to one embodiment, a sensor includes a base including a first face including a first face region, and a first structure body fixed to the first face region. The first structure body includes a first support portion fixed to the first face region, a second support portion fixed to the first face region, a first movable portion, and a first fixed electrode fixed to the first face region. The first movable portion is supported by the first and second support portions and apart from the base in a first direction crossing the first face region. The first movable portion includes a first movable electrode facing the first fixed electrode, and a first conductive member. A first current flows the first conductive member along a second direction crossing the first direction. A first gap is provided between the first fixed electrode and the first movable portion.
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公开(公告)号：US11609358B2
公开(公告)日：2023-03-21
申请号：US17315835
申请日：2021-05-10
申请人： OMNI LPS. CO., LTD.
发明人： Young Ki Chung , Kangsoo Lee
IPC分类号： G01W1/16 , G08B21/10 , G08B21/18 , G01R29/08 , G01R1/20 , G01R31/12 , H01L31/08 , G08B25/08 , H02S20/20
摘要： A lightning strike alarm system using a Bipolar Conventional Air Terminal comprises a sensor electrically connected to a rod element electrified by a ground charge and an electrification plate-cone or an electrification plate-tube electrified by a thunderstorm cloud, and configured to measure electric energy induced in the electrification plate-cone or the electrification plate-tube; and a controller configured to determine that the thunderstorm cloud has approached when the electrical energy is greater than a reference energy; and an alarm device configured to output an alarm signal, based on a result of determining that the thunderstorm cloud has approached, wherein the sensor comprises: a luminescence unit, including a voltage stabilizer preventing induction of a high voltage due to the thunderstorm cloud, configured to emit light by the electric energy; and a light receiver configured to receive the light, convert the light to electric energy, and transfer the electric energy to the controller.
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公开(公告)号：US20230078060A1
公开(公告)日：2023-03-16
申请号：US17668230
申请日：2022-02-09
发明人： Hiroaki YAMAZAKI
摘要： According to one embodiment, a sensor includes a base including a first face including a first face region, and a first structure body fixed to the first face region. The first structure body includes a first support portion fixed to the first face region, a second support portion fixed to the first face region, a first movable portion, and a first fixed electrode fixed to the first face region. The first movable portion is supported by the first and second support portions and apart from the base in a first direction crossing the first face region. The first movable portion includes a first movable electrode facing the first fixed electrode, and a first conductive member. A first current flows the first conductive member along a second direction crossing the first direction. A first gap is provided between the first fixed electrode and the first movable portion.
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公开(公告)号：US11562838B2
公开(公告)日：2023-01-24
申请号：US17063235
申请日：2020-10-05
摘要： A current sense resistor and a method of manufacturing a current sensing resistor with temperature coefficient of resistance (TCR) compensation are disclosed. The resistor has a resistive strip disposed between two conductive strips. A pair of main terminals and a pair of voltage sense terminals are formed in the conductive strips. A pair of rough TCR calibration slots is located between the main terminals and the voltage sense terminals, each of the rough TCR calibration slots have a depth selected to obtain a negative starting TCR value observed at the voltage sense terminals. A fine TCR calibration slot is formed between the pair of voltage sense terminals.
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公开(公告)号：US11532991B2
公开(公告)日：2022-12-20
申请号：US17142167
申请日：2021-01-05
发明人： Wenduo Liu , Heng Yun
摘要： An auxiliary winding for a flyback converter includes a floating terminal coupled to ground through a diode. A primary-side controller has a power supply voltage terminal coupled to a remaining terminal of the auxiliary winding and has a voltage sense terminal coupled to the floating terminal.
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公开(公告)号：US20220399884A1
公开(公告)日：2022-12-15
申请号：US17348521
申请日：2021-06-15
发明人： Cetin KAYA , Nathan Richard SCHEMM , Yong XIE
IPC分类号： H03K17/082 , G01R1/20 , G05F1/46 , H03K5/24 , G01R19/165 , G01K7/02
摘要： A short circuit detection circuit includes a current terminal, a sense resistor, an amplifier, and a resistor-capacitor ladder. The sense resistor is coupled to the current terminal, and is configured to develop a sense voltage proportional to a current through the current terminal. The amplifier is coupled to the sense resistor, and is configured to generate a scaled current proportional to the sense voltage. The resistor-capacitor ladder is coupled to the amplifier, and is configured to generate a measurement voltage that represents a surface temperature rise due to the current through the current terminal.
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公开(公告)号：US20220299568A1
公开(公告)日：2022-09-22
申请号：US17642275
申请日：2020-09-11
发明人： Karim BOUKHRIS , Nassim MEDIOUNI
摘要： Method for determining the voltage UL generated by the inductive part of a measuring resistor present in an electronic circuit including a signal generator, at least one stator winding connected to the signal generator and to the measuring resistor and a differential amplifier for the voltage across the terminals of the measuring resistor, the method including: a step of energizing the electronic circuit for a predetermined period of time t; a step of measuring the voltage UT across the terminals of the measuring resistor at the end of the energizing step; a step of determining the voltage UR generated by the resistive part of the measuring resistor at the end of the energizing step; and a step of determining the voltage UL generated by the inductive part of the measuring resistor as a function of the voltage UT and the voltage UR.
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公开(公告)号：US11428716B2
公开(公告)日：2022-08-30
申请号：US17070899
申请日：2020-10-14
申请人： CYNTEC CO., LTD.
发明人： Po-Wen Liu
摘要： A current detection device including two conductors, a resistor and two detection portions is provided. The resistor is disposed between the two conductors. At least one of the detection portions is a detection terminal including a first terminal portion and a second terminal portion. The first terminal portion includes a first flange and a second flange, the second flange is connected to the second terminal portion, and at least one portion of the second flange is buried into at least one conductor. The first flange is buried into the at least one conductor, a distal end of the first flange does not protrude beyond the second surface, a distance is kept between the distal end of the first flange and the second surface, a gap is defined between the first flange and the second flange, and at least one portion of the gap is filled with a material of the at least one conductor.
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公开(公告)号：US20220196757A1
公开(公告)日：2022-06-23
申请号：US17602901
申请日：2020-04-07
发明人： Chengde XU , Chun-Suk YANG
IPC分类号： G01R31/52 , H02P27/08 , H02M7/5387 , G01R31/42 , G01R1/20
摘要： The present disclosure relates to an inverter system capable of detecting an output ground fault and an output ground fault detection method using same and, particularly, to an inverter for detecting an output ground fault by detecting the current of a leg-shunt resistor, and an inverter output ground detection fault method using same. The present disclosure compares absolute peak values of 3-phase current AD raw values detected from a shunt resistor, and thus may reliably detect the output ground fault of an inverter.
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公开(公告)号：US11366140B2
公开(公告)日：2022-06-21
申请号：US17102037
申请日：2020-11-23
IPC分类号： G01R19/00 , H02J50/12 , G01R1/20 , G01R19/165
摘要： A current measurement circuit, for wireless charging systems, for instance, comprises a differential input configured to have applied an input voltage sensed across a shunt resistor traversed by a current to be measured, a voltage reversal switch arrangement selectively switchable to reverse the polarity of the input voltage as applied between a first and a second voltage sensing nodes as well as a first and a second current flow line between the voltage sensing nodes and ground. A difference resistor intermediate the two current flow lines is traversed by a current which is a function of the input voltage as applied to the first and second sensing nodes via the voltage reversal switch arrangement. First and second current sensing nodes at the two current flow lines are coupled to a differential current output via a current reversal switch arrangement selectively switchable to reverse the output current polarity.
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