公开(公告)号：US20220085593A1

公开(公告)日：2022-03-17

申请号：US17533280

申请日：2021-11-23

Applicant: Ze Chen

Inventor： Boon Lum Lim ,  Samuel Raj

IPC: H02H1/00 ,  G01R19/02 ,  H01H71/04 ,  H01H83/04 ,  H01H71/62 ,  H02H3/04 ,  G01R19/165 ,  G01R19/04 ,  H02H3/16 ,  H02H3/38 ,  G01R31/52

Abstract: In one example, an arc fault circuit interrupter (AFCI) is provided. The AFCI may include a plurality of current arc signature detection blocks configured to output a plurality of corresponding current arc signatures, and a processor. The processor may be configured to receive each of the plurality of current arc signature from each of plurality of current arc signature detection blocks, respectively, and generate a first trigger signal. The processor may be further configured to assess each of the current arc signatures, determine whether an arc fault exists based on the assessment, and generate the first trigger signal if an arc fault is determined to exist. A method for detecting an arc fault is also provided.

公开(公告)号：US20180083434A1

公开(公告)日：2018-03-22

申请号：US15269513

申请日：2016-09-19

Applicant: Ze Chen

Inventor： Boon Lum Lim ,  Samuel Raj

IPC: H02H1/00 ,  G01R31/02 ,  G01R19/04 ,  G01R19/02 ,  H02H3/38 ,  H02H3/16 ,  H01H71/24 ,  H01H71/58 ,  H01H71/12 ,  H01H9/54 ,  H01H71/04

CPC classification number: H02H1/0015 ,  G01R19/02 ,  G01R19/16571 ,  G01R19/16576 ,  G01R31/024 ,  G01R31/1227 ,  H01H71/04 ,  H01H71/58 ,  H01H71/62 ,  H01H83/04 ,  H01H2071/044 ,  H01H2083/201 ,  H02H3/044

Abstract: In one example, an arc fault circuit interrupter (AFCI) is provided. The AFCI may include a plurality of current arc signature detection blocks configured to output a plurality of corresponding current arc signatures, and a processor. The processor may be configured to receive each of the plurality of current arc signature from each of plurality of current arc signature detection blocks, respectively, and generate a first trigger signal. The processor may be further configured to assess each of the current arc signatures, determine whether an arc fault exists based on the assessment, and generate the first trigger signal if an arc fault is determined to exist. A method for detecting an arc fault is also provided.

公开(公告)号：US11228168B2

公开(公告)日：2022-01-18

申请号：US16654274

申请日：2019-10-16

Applicant: Ze Chen

Inventor： Boon Lum Lim ,  Samuel Raj

IPC: H02H3/04 ,  G01R31/52 ,  H02H1/00 ,  G01R19/02 ,  H01H71/04 ,  H01H83/04 ,  H01H71/62 ,  G01R19/165 ,  G01R19/04 ,  H02H3/16 ,  H02H3/38 ,  H01H71/58 ,  H01H83/20 ,  G01R31/12

Abstract: In one example, an arc fault circuit interrupter (AFCI) is provided. The AFCI may include a plurality of current arc signature detection blocks configured to output a plurality of corresponding current arc signatures, and a processor. The processor may be configured to receive each of the plurality of current arc signature from each of plurality of current arc signature detection blocks, respectively, and generate a first trigger signal. The processor may be further configured to assess each of the current arc signatures, determine whether an arc fault exists based on the assessment, and generate the first trigger signal if an arc fault is determined to exist. A method for detecting an arc fault is also provided.

公开(公告)号：US11165240B2

公开(公告)日：2021-11-02

申请号：US16511064

申请日：2019-07-15

Applicant: Ze Chen

Inventor： Ze Chen ,  Boon Lum Lim ,  Samuel Raj

IPC: H02H3/33 ,  H02H3/07 ,  H02H3/16 ,  H02H3/17 ,  H02H1/00

Abstract: In one example, a ground fault circuit interrupter is provided. It may include a current imbalance detection circuit configured to provide a leakage signal and a main processing circuit including a processor. The leakage signal may correspond to a current imbalance between a supply path and a return path. The processor may be configured to receive the leakage signal, analyze a time pattern of the leakage signal, determine whether a ground fault exists based on analysis of the time pattern, and generate a first trigger signal if the ground fault is determined to exist. The ground fault circuit interrupter may further include a back-EMF detection circuit configured to provide a back-EMF detection signal. Methods for detecting and responding to a ground fault are also provided.

公开(公告)号：US10410816B2

公开(公告)日：2019-09-10

申请号：US15582746

申请日：2017-04-30

Applicant: Ze Chen

Inventor： Ze Chen ,  Boon Lum Lim ,  Samuel Raj

IPC: H01H71/02 ,  H02H1/00 ,  H01H71/04 ,  H01H71/62 ,  H01H83/04 ,  H02H3/32 ,  H01H71/24 ,  H01H71/58 ,  H01H83/20

Abstract: In one example, a hybrid circuit interrupter may include a three-coil architecture, first coil circuitry, leakage detection circuitry, and a main processing circuit including a processor. The three-coil architecture may include a coil housing, three coils, and a plurality of coil assembly conductors. The coils may be disposed within the coil housing. The coil assembly conductors may be at least partially disposed within the coil housing. The first coil circuitry may be connected to the first coil and may generate first coil signals. The leakage detection circuitry may be connected to the other two coils and may generate a leakage signal. The processor may receive the first coil signals, receive the leakage signal, determine whether an arc fault exists based on the first coil signals, determine whether a ground fault exists based on the leakage signal, and generate a first trigger signal if a fault is determined to exist.

公开(公告)号：US11705712B2

公开(公告)日：2023-07-18

申请号：US17533280

申请日：2021-11-23

Applicant: Ze Chen

Inventor： Boon Lum Lim ,  Samuel Raj

IPC: H02H1/00 ,  H02H3/16 ,  G01R19/02 ,  H01H71/04 ,  H01H83/04 ,  H01H71/62 ,  H02H3/04 ,  G01R19/165 ,  G01R19/04 ,  H02H3/38 ,  G01R31/52 ,  H01H71/58 ,  H01H83/20 ,  G01R31/12

CPC classification number: H02H1/0015 ,  G01R19/02 ,  G01R19/04 ,  G01R19/16571 ,  G01R19/16576 ,  G01R31/52 ,  H01H71/04 ,  H01H71/62 ,  H01H83/04 ,  H02H3/044 ,  H02H3/16 ,  H02H3/38 ,  G01R31/1227 ,  H01H71/58 ,  H01H2071/044 ,  H01H2083/201

Abstract: In one example, an arc fault circuit interrupter (AFCI) is provided. The AFCI may include a plurality of current arc signature detection blocks configured to output a plurality of corresponding current arc signatures, and a processor. The processor may be configured to receive each of the plurality of current arc signature from each of plurality of current arc signature detection blocks, respectively, and generate a first trigger signal. The processor may be further configured to assess each of the current arc signatures, determine whether an arc fault exists based on the assessment, and generate the first trigger signal if an arc fault is determined to exist. A method for detecting an arc fault is also provided.

公开(公告)号：US10439387B2

公开(公告)日：2019-10-08

申请号：US15393440

申请日：2016-12-29

Applicant: Ze Chen

Inventor： Ze Chen ,  Boon Lum Lim ,  Samuel Raj

IPC: H02H3/00 ,  H02H3/17 ,  H02H3/07 ,  H02H1/00

Abstract: In one example, a ground fault circuit interrupter is provided. It may include a current imbalance detection circuit configured to provide a leakage signal and a main processing circuit including a processor. The leakage signal may correspond to a current imbalance between a supply path and a return path. The processor may be configured to receive the leakage signal, analyze a time pattern of the leakage signal, determine whether a ground fault exists based on analysis of the time pattern, and generate a first trigger signal if the ground fault is determined to exist. The ground fault circuit interrupter may further include a back-EMF detection circuit configured to provide a back-EMF detection signal. Methods for detecting and responding to a ground fault are also provided.

公开(公告)号：US20180191150A1

公开(公告)日：2018-07-05

申请号：US15393440

申请日：2016-12-29

Applicant: Ze Chen

Inventor： Ze CHEN ,  Boon Lum Lim ,  Samuel Raj

IPC: H02H3/17 ,  H02H3/07 ,  H02H1/00

CPC classification number: H02H3/17 ,  H02H1/0007 ,  H02H1/0069 ,  H02H3/04 ,  H02H3/07 ,  H02H3/331 ,  H02H3/334

Abstract: In one example, a ground fault circuit interrupter is provided. It may include a current imbalance detection circuit configured to provide a leakage signal and a main processing circuit including a processor. The leakage signal may correspond to a current imbalance between a supply path and a return path. The processor may be configured to receive the leakage signal, analyze a time pattern of the leakage signal, determine whether a ground fault exists based on analysis of the time pattern, and generate a first trigger signal if the ground fault is determined to exist. The ground fault circuit interrupter may further include a back-EMF detection circuit configured to provide a back-EMF detection signal. Methods for detecting and responding to a ground fault are also provided.

公开(公告)号：US11205552B2

公开(公告)日：2021-12-21

申请号：US16518070

申请日：2019-07-22

Applicant: Ze Chen

Inventor： Ze Chen ,  Boon Lum Lim ,  Samuel Raj

IPC: H01H71/02 ,  H02H9/08 ,  H02H1/00 ,  H01H71/04 ,  H01H71/62 ,  H01H83/04 ,  H02H3/32 ,  H01H47/00 ,  H01H50/02 ,  H01H50/44 ,  H01H83/14 ,  H02H3/16 ,  H02H3/33 ,  H01H71/24 ,  H01H71/58 ,  H01H83/20 ,  H01H89/00 ,  H02H3/04

Abstract: In one example, a hybrid circuit interrupter may include a three-coil architecture, first coil circuitry, leakage detection circuitry, and a main processing circuit including a processor. The three-coil architecture may include a coil housing, three coils, and a plurality of coil assembly conductors. The coils may be disposed within the coil housing. The coil assembly conductors may be at least partially disposed within the coil housing. The first coil circuitry may be connected to the first coil and may generate first coil signals. The leakage detection circuitry may be connected to the other two coils and may generate a leakage signal. The processor may receive the first coil signals, receive the leakage signal, determine whether an arc fault exists based on the first coil signals, determine whether a ground fault exists based on the leakage signal, and generate a first trigger signal if a fault is determined to exist.

公开(公告)号：US20200044434A1

公开(公告)日：2020-02-06

申请号：US16654274

申请日：2019-10-16

Applicant: Ze Chen

Inventor： Boon Lum Lim ,  Samuel Raj

IPC: H02H1/00 ,  G01R31/02 ,  G01R19/02 ,  H01H71/04 ,  H01H83/04 ,  H01H71/62 ,  H02H3/04 ,  G01R19/165

Abstract: In one example, an arc fault circuit interrupter (AFCI) is provided. The AFCI may include a plurality of current arc signature detection blocks configured to output a plurality of corresponding current arc signatures, and a processor. The processor may be configured to receive each of the plurality of current arc signature from each of plurality of current arc signature detection blocks, respectively, and generate a first trigger signal. The processor may be further configured to assess each of the current arc signatures, determine whether an arc fault exists based on the assessment, and generate the first trigger signal if an arc fault is determined to exist. A method for detecting an arc fault is also provided.