JP2020024830A - スイッチ装置 - Google Patents
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- 239000004065 semiconductor Substances 0.000 claims abstract description 528
- 238000001514 detection method Methods 0.000 claims description 13
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 description 23
- 239000007789 gas Substances 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
- H03K17/693—Switching arrangements with several input- or output-terminals, e.g. multiplexers, distributors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1213—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for DC-DC converters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/541—Contacts shunted by semiconductor devices
- H01H9/542—Contacts shunted by static switch means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
- H01H33/596—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle for interrupting dc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/548—Electromechanical and static switch connected in series
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
-
- 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
- H02H3/08—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 excess current
- H02H3/087—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 excess current for dc applications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
- H03K17/0814—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit
- H03K17/08142—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit in field-effect transistor switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/12—Modifications for increasing the maximum permissible switched current
- H03K17/122—Modifications for increasing the maximum permissible switched current in field-effect transistor switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/541—Contacts shunted by semiconductor devices
- H01H9/542—Contacts shunted by static switch means
- H01H2009/544—Contacts shunted by static switch means the static switching means being an insulated gate bipolar transistor, e.g. IGBT, Darlington configuration of FET and bipolar transistor
-
- 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
- H02H3/08—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 excess current
- H02H3/093—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 excess current with timing means
- H02H3/0935—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 excess current with timing means the timing being determined by numerical means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0009—Devices or circuits for detecting current in a converter
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K2017/515—Mechanical switches; Electronic switches controlling mechanical switches, e.g. relais
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/0054—Gating switches, e.g. pass gates
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Keying Circuit Devices (AREA)
Abstract
Description
[先行技術文献]
[特許文献]
[特許文献1] 国際公開WO2011/034140号
[特許文献2] 特開2017−191764号公報
[特許文献3] 国際公開WO2016/047209号
Claims (16)
- 入力端子と出力端子との間を接続または切断するスイッチ装置であって、
前記入力端子と前記出力端子との間に直列に接続された機械式スイッチ部および第1半導体スイッチ部と、
前記入力端子と前記出力端子との間に、前記機械式スイッチ部および前記第1半導体スイッチ部と並列に接続された第2半導体スイッチ部と、
前記第1半導体スイッチ部および前記第2半導体スイッチ部のそれぞれのオンオフのタイミングと、前記機械式スイッチ部を開閉するタイミングとを個別に制御するスイッチ制御部と、
を備えるスイッチ装置。 - 前記入力端子と前記出力端子との間に設けられる電流検出部を更に備え、
前記スイッチ制御部は、
前記電流検出部からの信号に応じて過電流を検出した場合にオフ指令を出力する保護回路と、
外部からの信号に基づき、前記機械式スイッチ部を開閉し、前記第1半導体スイッチ部および前記第2半導体スイッチ部をそれぞれオンオフするために予め定められたパルス信号を出力し、前記保護回路から前記オフ指令が入力された場合は、前記外部からの信号に関わらず、前記機械式スイッチ部を閉じ、前記第1半導体スイッチ部および前記第2半導体スイッチ部をそれぞれオフするために予め定められたパルス信号を出力するパルス分配回路と、
前記パルス分配回路から入力される前記パルス信号に基づき、前記機械式スイッチ部を開閉する信号と、前記第1半導体スイッチ部および前記第2半導体スイッチ部をそれぞれオンオフするためのゲート電圧とを出力する駆動回路と、
を有する請求項1に記載のスイッチ装置。 - 前記第1半導体スイッチ部の耐電圧は、前記第2半導体スイッチ部のオン電圧よりも高い、
請求項1または2に記載のスイッチ装置。 - 前記第1半導体スイッチ部は前記入力端子と前記出力端子との間に並列に接続された複数の第1半導体スイッチを含み、前記第2半導体スイッチ部は前記入力端子と前記出力端子との間に直列に接続された複数の第2半導体スイッチを含み、
前記複数の第1半導体スイッチのそれぞれの耐電圧は、前記複数の第2半導体スイッチのオン電圧の和よりも高い、
請求項3に記載のスイッチ装置。 - 前記スイッチ制御部は、前記第1半導体スイッチ部、前記機械式スイッチ部および前記第2半導体スイッチ部がいずれもオンの状態で、前記入力端子と前記出力端子との間を接続状態から切断状態に切り替える場合に、前記第1半導体スイッチ部、前記機械式スイッチ部、前記第2半導体スイッチ部の順にオフとする、
請求項1から4の何れか一項に記載のスイッチ装置。 - 前記スイッチ制御部は、前記入力端子と前記出力端子との間を接続状態から切断状態に切替える場合に、前記第1半導体スイッチ部をオフとした後に、前記第1半導体スイッチ部の電流が予め定められた値以下となったことに応じて、前記機械式スイッチ部をオフとする、
請求項5に記載のスイッチ装置。 - 前記スイッチ制御部は、前記第1半導体スイッチ部、前記機械式スイッチ部および前記第2半導体スイッチ部がいずれもオフの状態で、前記入力端子と前記出力端子との間を切断状態から接続状態に切り替える場合に、前記第2半導体スイッチ部、前記機械式スイッチ部、前記第1半導体スイッチ部の順にオンとする、
請求項1から6のいずれか一項に記載のスイッチ装置。 - 前記スイッチ制御部は、前記第2半導体スイッチ部をオンとした後に、前記入力端子と前記出力端子との間の電位差が基準以下となったことに応じて、前記機械式スイッチ部をオンとする、
請求項7に記載のスイッチ装置。 - 第1の入力端子と出力端子との間の接続状態と、第2の入力端子と前記出力端子との間の接続状態とを切り替える機械式切替スイッチと、
前記第1の入力端子と前記出力端子との間および前記第2の入力端子と前記出力端子との間に前記機械式切替スイッチとともに直列に接続された第1半導体スイッチ部と、
前記第1の入力端子と前記出力端子との間に、前記機械式切替スイッチおよび前記第1半導体スイッチ部と並列に接続された第2半導体スイッチ部と、
前記第2の入力端子と前記出力端子との間に、前記機械式切替スイッチおよび前記第1半導体スイッチ部と並列に接続された第3半導体スイッチ部と、
前記第1半導体スイッチ部、前記第2半導体スイッチ部および前記第3半導体スイッチ部のそれぞれのオンオフのタイミングと、前記機械式切替スイッチを開閉するタイミングとを個別に制御するスイッチ制御部と、
を備えるスイッチ装置。 - 前記スイッチ制御部は、前記第1半導体スイッチ部および前記第2半導体スイッチ部がオンの状態、且つ、前記機械式切替スイッチが前記第1の入力端子と前記第1半導体スイッチ部との間を接続している状態で、前記第1の入力端子と前記出力端子との間を接続状態から切断状態に切り替え、且つ、前記第2の入力端子と前記出力端子との間を切断状態から接続状態に切り替える場合に、前記第1半導体スイッチ部をオフとし、次に前記機械式切替スイッチを前記第2の入力端子と前記第1半導体スイッチ部との間を接続している状態に切り替え、次に前記第2半導体スイッチ部をオフとすると共に前記第3半導体スイッチ部をオンとし、次に前記第1半導体スイッチ部をオンとする、
請求項9に記載のスイッチ装置。 - 前記スイッチ制御部は、前記第1半導体スイッチ部および前記第2半導体スイッチ部がオンの状態、且つ、前記機械式切替スイッチが前記第1の入力端子と前記第1半導体スイッチ部との間を接続している状態で、前記第1の入力端子と前記出力端子との間を接続状態から切断状態に切り替え、且つ、前記第2の入力端子と前記出力端子との間を切断状態から接続状態に切り替える場合に、前記第1半導体スイッチ部をオフとし、次に前記機械式切替スイッチを、前記第1の入力端子と前記第1半導体スイッチ部との間、および前記第2の入力端子と前記第1半導体スイッチ部との間の何れも接続していない状態に切り替え、次に前記第2半導体スイッチ部をオフとすると共に前記第3半導体スイッチ部をオンとし、次に前記機械式切替スイッチを前記第2の入力端子と前記第1半導体スイッチ部との間を接続している状態に切り替え、次に前記第1半導体スイッチ部をオンとする、
請求項9に記載のスイッチ装置。 - 前記スイッチ制御部は、前記第3半導体スイッチ部をオンとした後に、前記第2の入力端子と前記出力端子との間の電位差が基準以下となったことに応じて、前記機械式切替スイッチを前記第2の入力端子と前記第1半導体スイッチ部との間を接続している状態に切り替える、
請求項11に記載のスイッチ装置。 - 前記第1半導体スイッチ部は、前記入力端子と前記出力端子との間に逆直列に接続された複数の第1半導体スイッチであって、それぞれが前記入力端子と前記出力端子との間に逆並列に接続された半導体スイッチ素子およびダイオードの組を含む、複数の第1半導体スイッチを有し、
前記入力端子と前記出力端子との間に、前記第2半導体スイッチ部と並列に接続されたダイオードブリッジを更に備える、
請求項1から8の何れか一項に記載のスイッチ装置。 - 前記第1半導体スイッチ部は、前記第1の入力端子と前記出力端子との間に逆直列に接続された複数の第1半導体スイッチであって、それぞれが前記第1の入力端子と前記出力端子との間に逆並列に接続された半導体スイッチ素子およびダイオードの組を有する、複数の第1半導体スイッチを有し、
前記第1の入力端子と前記出力端子との間に、前記第2半導体スイッチ部と並列に接続された第1ダイオードブリッジと、
前記第2の入力端子および前記出力端子との間に、前記第3半導体スイッチ部と並列に接続された第2ダイオードブリッジと
を更に備える請求項9から12の何れか一項に記載のスイッチ装置。 - 前記第1半導体スイッチ部はMOSFETを含み、前記第2半導体スイッチ部はIGBT、GTOサイリスタおよびWBG半導体の少なくとも何れかを含む、
請求項1から8および13のいずれか一項に記載のスイッチ装置。 - 前記第1半導体スイッチ部はMOSFETを含み、前記第2半導体スイッチ部および前記第3半導体スイッチ部の少なくとも何れかはIGBT、GTOサイリスタおよびWBG半導体の少なくとも何れかを含む、
請求項9から12および14のいずれか一項に記載のスイッチ装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018147990A JP7115127B2 (ja) | 2018-08-06 | 2018-08-06 | スイッチ装置 |
US16/455,806 US20200044650A1 (en) | 2018-08-06 | 2019-06-28 | Switch apparatus |
CN201910583163.XA CN110808572A (zh) | 2018-08-06 | 2019-07-01 | 开关装置 |
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Application Number | Priority Date | Filing Date | Title |
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JP2018147990A JP7115127B2 (ja) | 2018-08-06 | 2018-08-06 | スイッチ装置 |
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JP2020024830A true JP2020024830A (ja) | 2020-02-13 |
JP7115127B2 JP7115127B2 (ja) | 2022-08-09 |
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JP2018147990A Active JP7115127B2 (ja) | 2018-08-06 | 2018-08-06 | スイッチ装置 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2021006340A1 (ja) * | 2019-07-10 | 2021-01-14 | 富士電機株式会社 | 直流電源装置 |
KR20210155539A (ko) * | 2020-06-16 | 2021-12-23 | 효성중공업 주식회사 | 고전류 출력 제어회로 |
JP7323878B1 (ja) | 2022-11-24 | 2023-08-09 | 隆一 嶋田 | 電流開閉装置 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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FR3089706B1 (fr) * | 2018-12-11 | 2021-01-29 | Safran Electrical & Power | Système électronique de coupure de courant doté d’une solution de commande redondante. |
CN113890526A (zh) | 2020-07-02 | 2022-01-04 | 意法半导体股份有限公司 | 驱动器电路、对应的设备及操作方法 |
IT202000016072A1 (it) * | 2020-07-02 | 2022-01-02 | St Microelectronics Srl | Circuito di pilotaggio, dispositivo e procedimento di funzionamento corrispondenti |
TWI764195B (zh) * | 2020-07-10 | 2022-05-11 | 致伸科技股份有限公司 | 通用序列匯流排介面偵測模組 |
CN113934665B (zh) * | 2020-07-14 | 2023-11-24 | 致伸科技股份有限公司 | 通用序列总线接口检测模块 |
US11469757B2 (en) * | 2020-10-16 | 2022-10-11 | Abb Schweiz Ag | Solid-state power switch |
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2018
- 2018-08-06 JP JP2018147990A patent/JP7115127B2/ja active Active
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2019
- 2019-06-28 US US16/455,806 patent/US20200044650A1/en not_active Abandoned
- 2019-07-01 CN CN201910583163.XA patent/CN110808572A/zh active Pending
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WO2011034140A1 (ja) * | 2009-09-16 | 2011-03-24 | 株式会社ワイ・ワイ・エル | スイッチ |
US20120299393A1 (en) * | 2009-11-16 | 2012-11-29 | Abb Technology Ag | Device and method to break the current of a power transmission or distribution line and current limiting arrangement |
JP2016213179A (ja) * | 2015-04-28 | 2016-12-15 | ゼネラル・エレクトリック・カンパニイ | 直流回路遮断器および使用方法 |
JP2017004726A (ja) * | 2015-06-09 | 2017-01-05 | 株式会社東芝 | 直流遮断装置、直流遮断方法 |
JP2017191764A (ja) * | 2016-04-15 | 2017-10-19 | 嶋田 隆一 | 無アーク電流接続装置 |
Cited By (5)
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WO2021006340A1 (ja) * | 2019-07-10 | 2021-01-14 | 富士電機株式会社 | 直流電源装置 |
KR20210155539A (ko) * | 2020-06-16 | 2021-12-23 | 효성중공업 주식회사 | 고전류 출력 제어회로 |
KR102485197B1 (ko) * | 2020-06-16 | 2023-01-05 | 효성중공업 주식회사 | 고전류 출력 제어회로 |
JP7323878B1 (ja) | 2022-11-24 | 2023-08-09 | 隆一 嶋田 | 電流開閉装置 |
JP2024075822A (ja) * | 2022-11-24 | 2024-06-05 | 隆一 嶋田 | 電流開閉装置 |
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US20200044650A1 (en) | 2020-02-06 |
CN110808572A (zh) | 2020-02-18 |
JP7115127B2 (ja) | 2022-08-09 |
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