公开(公告)号：US11469592B1

公开(公告)日：2022-10-11

申请号：US17706041

申请日：2022-03-28

Applicant: Plamen Doynov

Inventor： Plamen Doynov

IPC: G01R31/12 ,  H02H9/04 ,  H02H5/00 ,  G01R31/327 ,  H02H3/10 ,  H02H3/08 ,  H02H3/22

Abstract: A system and method for persistent monitoring, detecting, and mitigating detecting and isolating a high-altitude electromagnetic pulse (“HEMP”) along electrical lines electrically connected to a monitored infrastructure so as to protect the monitored infrastructure, the method including a phase unit receiving sensor signals from a plurality of analog sensor circuits electrically connected to each of the electrical lines, respectively, upstream of and associated with the monitored infrastructure. The method includes determining, limiting, shunting, and limiting the impinged transient surges and instantaneously indicates locally the status of the monitored parameters using visual and audio sound via a cybersecure optical communication channel supporting a plurality of wavelengths, from which one wavelength is utilized for a one-directional communication and a different wavelength optical signal establishing a controlled temporary two-directional communication for surge protection system maintenance and update.

公开(公告)号：US20220308612A1

公开(公告)日：2022-09-29

申请号：US17655854

申请日：2022-03-22

Applicant: ROHM Co., LTD.

Inventor： Kenji MURAOKA ,  Toru TAKUMA

IPC: G05F1/573 ,  H03K19/003 ,  H02H3/08 ,  H03K17/081 ,  B60R16/02

Abstract: Provided is an overcurrent protection circuit including an overcurrent detection unit configured to compare an output current flowing through a switch element and a predetermined overcurrent detection value to generate an overcurrent detection signal, an output activation detection unit configured to compare an output voltage and a predetermined threshold voltage to generate an output activation detection signal, a logic unit configured to combine the overcurrent detection signal and the output activation detection signal to generate a logic operation signal, and a diagnostic output unit configured to provide diagnostic output, the logic unit shifting the logic operation signal to a logic level of abnormal state when the overcurrent detection signal is shifted to a logic level of overcurrent detection state and holding the logic operation signal at that logic level, unless the output activation detection signal is shifted to a logic level of output activation state.

公开(公告)号：US11456588B2

公开(公告)日：2022-09-27

申请号：US16758145

申请日：2017-10-23

Applicant: GKN Automotive Ltd.

Inventor： Roman Liebsch

IPC: H02H3/08 ,  B60R16/02 ,  G01R31/00 ,  G01R31/327 ,  H02H1/00

Abstract: A protective circuit includes a first field-effect transistor having a first drain terminal, a first source terminal and a first gate terminal, a control device by which an electrical first voltage between the first drain terminal and the first source terminal can be determined, and a first temperature sensor by which a first temperature of the first field-effect transistor can be detected, wherein a first resistance of the first field effect transistor and an electrical first current conducted via the first field-effect transistor can be determined by the control device based on the first temperature.

公开(公告)号：US20220302694A1

公开(公告)日：2022-09-22

申请号：US17699351

申请日：2022-03-21

Applicant: Siemens Aktiengesellschaft

Inventor： Anand Venkatramani ,  Michael Gerstner ,  Bernd Schwinn ,  Martin Muellhofer

IPC: H02H3/04 ,  H02H3/08

Abstract: A circuit breaker system has a circuit breaker with a circuit breaker communication unit. A display unit contains a display housing, and the circuit breaker and the display unit are configured such that the display unit is latched to the circuit breaker. The circuit breaker and the display unit, in the latched state, are connected to one another by a plug connection, such that data of the circuit breaker are displayable on the display unit. A display holder is provided, containing a holder housing and a holder communication unit. The display holder is configured such that the display unit can be latched into the display holder, that the display holder and the display unit, in the latched state, are connected to one another by an electrical plug connection, and that the display holder is configured such that the data of the circuit breaker are displayed in the latched state.

公开(公告)号：US11448670B2

公开(公告)日：2022-09-20

申请号：US17132118

申请日：2020-12-23

Applicant: Hamilton Sundstrand Corporation

Inventor： Gordon Elliott Winer

IPC: H02H3/08 ,  H02H9/02 ,  G01R19/165 ,  B64D27/02 ,  G01R31/00 ,  G01R31/40 ,  H02H1/00 ,  B64D27/24 ,  B64D41/00

Abstract: Apparatus and associated methods relate to detection of an overcurrent condition by determining if a voltage across a current-sense resistor exceeds a predetermined voltage threshold. The voltage at each side of the current-sense resistor is sensed indirectly, through a diode network. The diode networks through which the voltages on each side of the current-sense resistor are biased differently from one another. Such differently-biased diode networks translate the voltages at each side of the current-sense resistor by different amounts, the biasing of these diode networks is such that a voltage difference between the second terminals of the first and second diode networks is of a first polarity during normal current conditions, and the voltage difference between the second terminals of the first and second diode networks is of a second polarity during overcurrent conditions.

公开(公告)号：US20220291273A1

公开(公告)日：2022-09-15

申请号：US17652203

申请日：2022-02-23

Applicant: VOLVO TRUCK CORPORATION

Inventor： Julien MAITRE ,  Maxime VALERO ,  Benjamin FORAS

IPC: G01R31/00 ,  G01R21/133 ,  H02H1/00 ,  H02H3/08 ,  B60L58/12

Abstract: A control method for determining an operational status of an electrical load of a heavy-duty vehicle includes measuring a global current consumption of the electrical network when the electrical load is not activated, detecting an activation of the electrical load, measuring the global current consumption of the electrical network after the electrical load has been activated, determining an electrical current consumption of the electrical load, determining a reference current consumption of the electrical load, if the difference between the determined electrical current consumption of the electrical load and the determined reference current consumption is higher than a first predetermined threshold and lower than a second predetermined threshold, the second predetermined threshold being higher than the first predetermined threshold, set the operational status of the electrical load to a first status called “nominal operation”.

公开(公告)号：US11444445B2

公开(公告)日：2022-09-13

申请号：US17125824

申请日：2020-12-17

Applicant: Intel Corporation

Inventor： Raj Singh Dua ,  Sanjay Joshi ,  Harry Muljono ,  Balkaran Gill

IPC: H02H3/22 ,  H02H3/08

Abstract: Analog Front End (AFE) driver or transmitter is used for ESD protection of an input-output (IO) pin, thus reducing ESD diode count and subsequently lowering the pad capacitance to achieve high performance in IO circuits like double data rate (DDR) IO, PCI Express (Peripheral Component Interconnect Express), etc. The channel of active devices that constitute AFE driver are used to connect an IO pad to discharge the ESD current to ground, thus providing an alternative path to ESD current and subsequently reducing the ESD diode count. An additional p-type device (Driver Path Enabler (DPE)) is coupled between the IO pad and a gate terminal of the AFE driver. This additional p-type device triggers the channel of the AFE driver. This p-type device is controlled by an RC based structure which cuts the p-type device off during regular operations when power is ramped-up.

公开(公告)号：US11427179B2

公开(公告)日：2022-08-30

申请号：US16882767

申请日：2020-05-26

Applicant: HONDA MOTOR CO., LTD.

Inventor： Hisaya Oiwa

IPC: B60W20/10 ,  H01M10/44 ,  H01M10/48 ,  H02J7/34 ,  H02H3/08 ,  B60W10/08 ,  B60K6/28 ,  H02M7/5395 ,  B60L58/10 ,  B60K6/26 ,  H02P27/08

Abstract: The power supply system includes: a first power circuit having a first battery, a second power circuit having a second battery, a voltage converter which converts voltages between both circuits, voltage sensors which acquire a first circuit voltage value V1 and second circuit voltage value V2, a current sensor which acquires a passing current value Iact, and a passing power control unit which operates the voltage converter. The passing power control unit performs PWM control under a control duty ratio obtained by summing a correction duty ratio calculated based on the current deviation change rate and a base duty ratio, in a case of, after starting PWM control under the base duty ratio decided based on the voltage values V1, V2 during activation of the voltage converter, the value of current deviation between a passing current value Iact and activation target value Itrg exceeding a permitted range.

公开(公告)号：US20220271524A1

公开(公告)日：2022-08-25

申请号：US17680628

申请日：2022-02-25

Applicant: Siemens Aktiengesellschaft

Inventor： Peter Kopaczewski ,  Marco Bruell

IPC: H02H3/08 ,  H02H1/00 ,  G01R15/18 ,  G01R19/165 ,  G01R21/06

Abstract: A power value for a low-voltage AC circuit, such as low-voltage circuit breaker, is derived. A voltage between conductors of the low-voltage AC circuit is ascertained and a current of at least one conductor is ascertained by a Rogowski coil, which outputs an analog voltage that is an equivalent to the level of the electric current. The analog voltage of the Rogowski coil is integrated and then digitized, and the level of the voltage is digitized. A power value is calculated in each case from a sample value of the current and an interpolated voltage value. The interpolated voltage value is in each case ascertained from two successive sample values of the voltage such that a phase error generated by the Rogowski coil or/and the integrator is compensated for in relation to the electric current in the conductor and a phase error-free power value is ascertained.

公开(公告)号：US11417452B2

公开(公告)日：2022-08-16

申请号：US16624415

申请日：2018-04-19

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Katsumi Ikegaya ,  Keishi Komoriyama ,  Yoshiaki Mizuhashi ,  Takayuki Oshima ,  Shinichirou Wada

IPC: G01R31/08 ,  H01F7/18 ,  G01R19/00 ,  H01L29/78 ,  H02H9/08 ,  H02H3/08

Abstract: An object is to provide a new electronic control unit that can improve detection accuracy of a sense current even in a region where the current value of the sense current is small. Provided is a sense current detection unit including a plurality of sense transistors that have different current flow rates and that are connected to current output transistors controlling a current flowing in a coil load. The current in the sense current detection unit is input to an analog/digital converter, and the current value of the current flowing in the sense current detection unit is converted into a digital value. The current value of the current flowing in the sense current detection unit is increased through a combination or a selection of the plurality of sense transistors of the sense current detection unit in a region where the current value of the main current of the current output transistors is small compared to a region where the current value of the main current is large.