JP7351052B2 - 漏電遮断器回路 - Google Patents
漏電遮断器回路 Download PDFInfo
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- JP7351052B2 JP7351052B2 JP2020526975A JP2020526975A JP7351052B2 JP 7351052 B2 JP7351052 B2 JP 7351052B2 JP 2020526975 A JP2020526975 A JP 2020526975A JP 2020526975 A JP2020526975 A JP 2020526975A JP 7351052 B2 JP7351052 B2 JP 7351052B2
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
- H02H3/162—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass for ac systems
- H02H3/165—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass for ac systems for three-phase systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
- H02H3/331—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers responsive to earthing of the neutral conductor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
- H03K5/24—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Emergency Protection Circuit Devices (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Breakers (AREA)
- Rectifiers (AREA)
Description
Claims (13)
- 漏電遮断器(GFCI)回路であって、
複数のコンパレータであって、各々が、閾値電圧を負荷への電流フローと前記負荷からの電流フローとの差を表す信号と比較するように構成される、前記複数のコンパレータと、
複数の異なる閾値電圧を生成するように構成される閾値生成回路要素であって、前記複数の異なる閾値電圧の各々が、前記コンパレータの1つに対して前記閾値電圧として提供される、前記閾値生成回路要素と、
複数のタイマー回路であって、前記コンパレータの各々が前記タイマー回路の1つに結合され、前記タイマー回路の各々が、前記コンパレータに提供される前記閾値電圧に関連する時間の間に前記タイマー回路に結合される前記コンパレータの出力の活性化に応答して故障信号を活性化するように構成され、前記閾値電圧の値が低いほど前記時間が増加する、前記複数のタイマー回路と、
を含み、
前記タイマー回路の各々が、前記コンパレータの1つに結合されるフィルタカウンタを含み、前記フィルタカウンタが、前記コンパレータの出力が所定の時間より長い間に活性であることに応答して、フィルタ出力信号を活性化するように構成され、
前記閾値電圧の値が低いほど前記所定の時間が増加する、GFCI回路。 - 請求項1に記載のGFCI回路であって、
前記タイマー回路の各々が、前記フィルタカウンタに結合される位相カウンタを更に含み、前記位相カウンタが、前記フィルタ出力信号が所定の数の前の交流電流サイクルの半分以上において活性であることに基づいて、前記故障信号をトリガするように構成される、GFCI回路。 - 請求項2に記載のGFCI回路であって、
前記閾値電圧の値が低いほど前記所定の数が増加する、GFCI回路。 - 請求項1に記載のGFCI回路であって、
前記閾値電圧の第1の閾値電圧が、前記負荷への電流フローと前記負荷からの電流フローとの差の5ミリアンペア(ma)に対応し、
前記閾値電圧の第2の閾値電圧が、前記負荷からの電流フローと前記負荷からの電流フローとの差の20maに対応し、
前記閾値電圧の第3の閾値電圧が、前記負荷への電流フローと前記負荷からの電流フローとのの差の40maに対応し、
前記閾値電圧の第4の閾値電圧が、前記負荷からのへの電流フローと前記負荷からの電流フローとの100maの差に対応する、GFCI回路。 - 請求項1に記載のGFCI回路であって、
前記コンパレータの各々に結合される出力を含む増幅器を更に含む、GFCI回路。 - 請求項5に記載のGFCI回路であって、
前記増幅器に結合される変流器であって、前記負荷への電流フローと前記負荷からの電流フローとの差を検出するように構成される、前記変流器を更に含む、GFCI回路。 - 請求項1に記載のGFCI回路であって、
前記タイマー回路に結合されるスイッチであって、前記故障信号の活性化に応答して前記負荷への電流フローを中断するように構成される、前記スイッチを更に含む、GFCI回路。 - 漏電遮断の方法であって、
負荷への電流フローと前記負荷からの電流フローとの差を表す信号を複数の閾値電圧と比較することであって、前記閾値電圧の各々が、前記電流フローの差の異なる値に対応する、前記比較することと、
前記閾値電圧のうちの少なくとも1つについて、前記電流フローの差を表す信号が所定の数の前の交流電流サイクルの少なくとも半分において前記閾値電圧のうちの少なくとも1つを超えると判定することに応答して、障害信号を活性化することと、
を含む、方法。 - 漏電遮断の方法であって、
負荷への電流フローと前記負荷からの電流フローとの差を表す信号を複数の閾値電圧と比較することであって、前記閾値電圧の各々が、前記電流フローの差の異なる値に対応する、前記比較することと、
前記閾値電圧のうちの少なくとも1つについて、前記電流フローの差を表す信号が所定の数の前の交流電流サイクルの少なくとも半分において前記閾値電圧のうちの少なくとも1つを超えると判定することに応答して、障害信号を活性化することと、
を含み、
前記閾値電圧の第1の閾値電圧が、5maの電流フローの差に対応し、前の交流電流サイクルの所定の数が少なくとも64であり、
前記閾値電圧の第2の閾値電圧が、20maの電流フローの差に対応し、前の交流電流サイクルの所定の数が少なくとも16であり、
前記閾値電圧の第3の閾値電圧が、40maの電流フローの差に対応し、前の交流電流サイクルの所定の数が少なくとも4であり、
前記閾値電圧の第4の閾値電圧が、100maの電流フローの差に対応し、前の交流電流サイクルの所定の数が2である、方法。 - 漏電遮断器(GFCI)回路であって、
複数のコンパレータであって、各々が、閾値電圧を負荷への電流フローと前記負荷からの電流フローとの差を表す信号と比較するように構成される、前記複数のコンパレータと、
複数の異なる閾値電圧を生成するように構成される閾値生成回路要素であって、前記異なる閾値電圧の各々が、前記コンパレータの1つに対して前記閾値電圧として提供される、前記閾値生成回路要素と、
複数のタイマー回路であって、各々が、
前記コンパレータの1つに結合されるフィルタカウンタであって、所定の時間より長い間に活性である前記コンパレータの出力に応答してフィルタ出力信号を活性化するように構成され、前記閾値電圧の値が低いほど前記所定の時間が増加する、前記フィルタカウンタと、
前記フィルタカウンタに結合される位相カウンタであって、所定の数の前の交流電流サイクルの半分以上において活性である前記フィルタ出力信号に基づいて故障信号をトリガするように構成される、前記位相カウンタと、
を含む、前記タイマー回路と、
を含む、GFCI回路。 - 請求項10に記載のGFCI回路であって、
前記閾値電圧の値が低いほど前記所定の数が増加する、GFCI回路。 - 請求項10に記載のGFCI回路であって、
前記コンパレータの各々に結合される出力を含む増幅器を更に含む、GFCI回路。 - 請求項10に記載のGFCI回路であって、
前記故障信号の活性化に応答して前記負荷への電流フローをディセーブルするためにスイッチを開くように構成されるスイッチ制御回路要素を更に含む、GFCI回路。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762586307P | 2017-11-15 | 2017-11-15 | |
US62/586,307 | 2017-11-15 | ||
US16/131,739 US10951018B2 (en) | 2017-11-15 | 2018-09-14 | Ground fault current interrupter circuit |
US16/131,739 | 2018-09-14 | ||
PCT/US2018/061235 WO2019099636A1 (en) | 2017-11-15 | 2018-11-15 | Ground fault current interrupter circuit |
Publications (3)
Publication Number | Publication Date |
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JP2021503166A JP2021503166A (ja) | 2021-02-04 |
JP2021503166A5 JP2021503166A5 (ja) | 2021-12-23 |
JP7351052B2 true JP7351052B2 (ja) | 2023-09-27 |
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JP2020526975A Active JP7351052B2 (ja) | 2017-11-15 | 2018-11-15 | 漏電遮断器回路 |
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US (1) | US10951018B2 (ja) |
EP (1) | EP3711129A4 (ja) |
JP (1) | JP7351052B2 (ja) |
CN (1) | CN111344924B (ja) |
WO (1) | WO2019099636A1 (ja) |
Families Citing this family (1)
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US20230318279A1 (en) * | 2020-08-19 | 2023-10-05 | Belgravia Wood Limited | Electrical safety system with timer |
Citations (2)
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JP2017046570A (ja) | 2015-08-27 | 2017-03-02 | ローム株式会社 | 過電流保護装置、電子機器、集積回路および信号伝達回路 |
JP2017093237A (ja) | 2015-11-16 | 2017-05-25 | 富士電機株式会社 | 漏電遮断器用半導体集積回路 |
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-
2018
- 2018-09-14 US US16/131,739 patent/US10951018B2/en active Active
- 2018-11-15 JP JP2020526975A patent/JP7351052B2/ja active Active
- 2018-11-15 WO PCT/US2018/061235 patent/WO2019099636A1/en unknown
- 2018-11-15 CN CN201880073674.0A patent/CN111344924B/zh active Active
- 2018-11-15 EP EP18879150.3A patent/EP3711129A4/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2017046570A (ja) | 2015-08-27 | 2017-03-02 | ローム株式会社 | 過電流保護装置、電子機器、集積回路および信号伝達回路 |
JP2017093237A (ja) | 2015-11-16 | 2017-05-25 | 富士電機株式会社 | 漏電遮断器用半導体集積回路 |
Also Published As
Publication number | Publication date |
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CN111344924A (zh) | 2020-06-26 |
CN111344924B (zh) | 2022-06-17 |
US20190148930A1 (en) | 2019-05-16 |
EP3711129A1 (en) | 2020-09-23 |
JP2021503166A (ja) | 2021-02-04 |
EP3711129A4 (en) | 2021-01-20 |
US10951018B2 (en) | 2021-03-16 |
WO2019099636A1 (en) | 2019-05-23 |
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