公开(公告)号：US12191651B2

公开(公告)日：2025-01-07

申请号：US17546025

申请日：2021-12-08

Applicant: PHISON ELECTRONICS CORP.

Inventor： Shu-Han Chou

IPC: H02H3/08 ,  H02H1/00 ,  H02H9/02 ,  H03K5/24

Abstract: An overcurrent protection circuit, a memory storage device, and an overcurrent protection method are disclosed. The overcurrent protection circuit includes a load switch, a first mirror circuit, a second mirror circuit, and a control circuit. The first mirror circuit is configured to generate a first node voltage in a state that a voltage difference between two terminals of the load switch is within a first voltage region. The second mirror circuit is configured to generate a second node voltage in a state that the voltage difference between the two terminals of the load switch is within a second voltage region. The control circuit is configured to cut off the load switch according to at least one of the first node voltage and the second node voltage to perform an overcurrent protection. The first voltage region is different from the second voltage region.

公开(公告)号：US20250007269A1

公开(公告)日：2025-01-02

申请号：US18751539

申请日：2024-06-24

Applicant: Schneider Electric Industries SAS

Inventor： Eric Domejean ,  Emmanuel Frangin

IPC: H02H3/08 ,  H02H3/06 ,  H02H11/00

Abstract: An electrical protection device including main electrical contacts, a switching mechanism, a solid-state power switch connected in series with the main electrical contacts, a safety device connected in parallel with the main electrical contacts, the safety device including secondary electrical contacts, and a control unit, the control unit being adapted to control the power switch and the switching mechanism. The safety device being adapted to, when a current of greater than a predetermined value flows through the safety device, activate the switching mechanism to switch the main electrical contacts and the secondary electrical contacts to the open state.

公开(公告)号：US12173928B2

公开(公告)日：2024-12-24

申请号：US18199257

申请日：2023-05-18

Applicant: Intellihot, Inc.

Inventor： Sridhar Deivasigamani ,  Sivaprasad Akasam

IPC: G01R19/15 ,  F24H15/144 ,  F24H15/395 ,  G01R21/00 ,  H02H3/08

Abstract: A method for detecting an insufficient power condition of a power supply to a system from a distinctive marker using a controller, the method including: upon a power-up of the system, determining an event associated with the distinctive marker; and periodically logging the distinctive marker in a non-volatile memory with respect to time, starting at the power-up of the device.

公开(公告)号：US12171086B2

公开(公告)日：2024-12-17

申请号：US18083957

申请日：2022-12-19

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Ankit Bhagat ,  Sarang Sarode ,  Avadhoot Kittur ,  Niloy Khatua ,  Robert Michael Slepian

IPC: H05K7/20 ,  H02H3/08

Abstract: A thermal management device for a circuit breaker includes: a heat pipe having an evaporator section, an adiabatic section and a condenser section; a busbar having a first portion including at least a portion of the adiabatic section of the heat pipe; a conducting busbar having a first end, a second end opposite the first end and a groove disposed on a top surface of the conducting busbar, the first end disposed adjacent to primary contacts, the second end integrated in the first portion of the busbar, the groove extending from the first end to the second end and including the evaporator section and the at least a portion of the adiabatic section of the heat pipe embedded therein; and an array of fins integrated to the second portion of the busbar, the condenser section of the heat pipe extending through the array of fins.

公开(公告)号：US12170439B2

公开(公告)日：2024-12-17

申请号：US18197901

申请日：2023-05-16

Applicant: Eaton Intelligent Power Limited

Inventor： Xin Zhou ,  Brian E. Carlson ,  Brooke E. Lang ,  Robert P. Griffin

IPC: H02H1/00 ,  H01H9/38 ,  H01H9/50 ,  H02H3/08 ,  H01H9/52

Abstract: A system including an arc flash sensor that detects an arc flash event and an arc flash mitigation device in communication with the sensor. The mitigation device includes a path of least resistance having a path input and a path output. The arc flash sensor is located downstream the output. The mitigation device includes an electro-mechanical switch between the input and the output and an actuator. The mitigation device also includes a bypass power switch device that includes a solid-state circuit interrupter and that conduct current between the input and the output in response to an open-circuit condition of the switch. A system controller is provided to generate a trigger to activate the actuator to generate the open-circuit condition of the switch, which causes the power switch device to interrupt a fault current associated with a fault event in response to detection of the arc flash event.

公开(公告)号：US20240410921A1

公开(公告)日：2024-12-12

申请号：US18735737

申请日：2024-06-06

Applicant: NEXPERIA B.V.

Inventor： Rohit Tirumala

IPC: G01R19/165 ,  G01R15/16 ,  H02H1/00 ,  H02H3/08

Abstract: An over current protection circuit arranged for providing an over current signal, the over current protection circuit includes a compare stage arranged for determining that a blanking time value is higher than a predefined reference value, an output stage arranged for outputting the over current signal based on the determination, a blanking time stage arranged for generating the blanking time value, and the blanking time stage is arranged to start generating the blanking time value upon a load current exceeding a predefined set current, the blanking time stage is further arranged to modulate the blanking time value based on a magnitude in which the load current exceeds the predefined set current.

公开(公告)号：US12166340B2

公开(公告)日：2024-12-10

申请号：US17533173

申请日：2021-11-23

Applicant: Schneider Electric Industries SAS

Inventor： David Corbet ,  Philippe Alibert ,  Thi Thu Ha Pham

IPC: G01R31/58 ,  H02H1/00 ,  H02H3/04 ,  H02H3/08

Abstract: A method for detecting faults in a low voltage three-phase network including: checking if any of three phases of the three-phase network satisfies first conditions for a predetermined duration of time; if at least two phases satisfy the first conditions, detecting an inter-phase fault by checking if the current level in at least two phases exceed a threshold and if the corresponding current flows are in the same direction; if only one of the three phases satisfies the first conditions, for the phase which has satisfied the first conditions, checking if a second condition is satisfied and, in a positive case, detecting a mono-phase fault.

公开(公告)号：US20240372353A1

公开(公告)日：2024-11-07

申请号：US18370426

申请日：2023-09-20

Applicant: Schneider Electric Industries SAS

Inventor： Matthieu Favre ,  Bartosz Boguslawski ,  Costin Vasile

IPC: H02H3/08 ,  H02H1/00

Abstract: A method and system for determining a tripping range of an electrical circuit switching device designed to supply power to an electrical installation. The system includes an electronic calculation module which is configured to receive data from at least one vibration sensor integrated into said switching device and which is configured to select, based on spectrograms calculated from temporal vibration signals acquired, a predetermined subset of operational characteristics; apply a prediction model parameterized by supervised machine learning to the values of the operational characteristics so as to obtain an estimated value of cut-off current, and determine, as a function of the estimated value of cut-off current, a tripping range of the switching device amongst: normal tripping, overload tripping, and tripping following a short circuit.

公开(公告)号：US20240371588A1

公开(公告)日：2024-11-07

申请号：US18685886

申请日：2022-08-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KAZUHIRO KODAMA ,  SHINYA KIMOTO ,  HIROKAZU FUSHIKI

IPC: H01H50/36 ,  H01H39/00 ,  H01H89/00 ,  H02H3/08

Abstract: This cutoff device includes: an electrical path; a first coil in which a first induced current corresponding to an electric current flowing through the electrical path is generated; a breaker that interrupts the electrical path; and wiring that electrically connects the first coil and the breaker. The breaker is driven with the first induced current generated in the first coil.

公开(公告)号：US20240356312A1

公开(公告)日：2024-10-24

申请号：US18639819

申请日：2024-04-18

Applicant: Span.IO, Inc.

Inventor： Aleksandar Daniel Oleg Rivin ,  Ian Casimir Dimen ,  Cole Hamilton Ashman ,  Nicholas Reid ,  Ryan Carter Kroeze ,  Venkatraghavan Sundararajna

IPC: H02B1/056 ,  H02B1/21 ,  H02H1/00 ,  H02H3/08

CPC classification number: H02B1/056 ,  H02B1/21 ,  H02H1/0015 ,  H02H3/083

Abstract: A portion of an electrical panelboard may include an arc fault circuit interruption (AFCI) protection system configured to detect arc fault events occurring in branch circuits and interrupt the flow of electricity in one or more of the branch circuits, where interruption switching devices of the AFCI protection system are electrically coupled between (a) one or more bus bars of the electrical panelboard and (b) branch circuit terminals of the electrical panelboard. The portion of the panelboard may also include an interface panel that enables a user to interact with the AFCI protection system.