JP2018085857A - 過電流保護装置 - Google Patents
過電流保護装置 Download PDFInfo
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- JP2018085857A JP2018085857A JP2016228020A JP2016228020A JP2018085857A JP 2018085857 A JP2018085857 A JP 2018085857A JP 2016228020 A JP2016228020 A JP 2016228020A JP 2016228020 A JP2016228020 A JP 2016228020A JP 2018085857 A JP2018085857 A JP 2018085857A
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- 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
- H02M1/32—Means for protecting converters other than automatic disconnection
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- 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
- 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
- H02M3/156—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 with automatic control of output voltage or current, e.g. switching regulators
-
- 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
- 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
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
-
- 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
- H02M3/156—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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/157—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 with automatic control of output voltage or current, e.g. switching regulators with digital control
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Electronic Switches (AREA)
Abstract
【解決手段】過電流保護装置(5)は、通電状態取得部(52)と、変更部(53)と、保護動作部(51)とを備える。通電状態取得部は、負荷電流の通電状態を取得する。変更部は、通電状態取得部における通電状態の取得条件を、負荷回路(2)の駆動状態に応じて変更する。保護動作部は、通電状態取得部によって取得された通電状態に基づいて、負荷駆動システム(1)を過電流から保護する過電流保護動作を実行する。
【選択図】図1
Description
以下、本開示の実施形態を、図面に基づいて説明する。なお、実施形態に対して適用可能な各種の変更については、変形例として、一連の実施形態の説明の後に、まとめて説明する。
以下、本実施形態の構成による動作及び効果について説明する。図2は、本実施形態の負荷駆動システム1における、負荷電流特性とワイヤ保護特性との関係を示す。図中、縦軸は電流値I[A]であり、横軸は負荷電流の通電開始時刻t0からの経過時間t[s]である。曲線ILは、正常時(即ち過電流が発生しない場合)の負荷電流特性を示す。この負荷電流特性は、通電開始時刻t0以降の、負荷回路2(具体的には配線ワイヤ22)を通流する負荷電流の時間変化である。
本開示は、上記実施形態に記載された具体的例示に限定されるものではない。即ち、上記実施形態に対しては、適宜変更が可能である。以下、代表的な変形例について説明する。以下の変形例の説明においては、上記実施形態と異なる部分についてのみ説明する。また、上記実施形態と変形例とにおいて、互いに同一又は均等である部分には、同一符号が付されている。したがって、以下の変形例の説明において、上記実施形態と同一の符号を有する構成要素に関しては、技術的矛盾又は特段の追加説明なき限り、上記実施形態における説明が適宜援用され得る。
2 負荷回路
21 電気負荷
3 制御回路
4 半導体スイッチ
5 デバイス駆動回路
51 駆動制御部
52 電流値取得部
53 ゲイン切換部
Claims (3)
- 電気負荷(21)を有する負荷回路(2)と、前記負荷回路の駆動を制御するように前記負荷回路に電気接続された半導体スイッチ(4)とを備えた負荷駆動システム(1)を、過電流から保護するように構成された、過電流保護装置(5)であって、
前記半導体スイッチのオン時に前記半導体スイッチ及び前記負荷回路に通流する負荷電流の通電状態を取得するように設けられた、通電状態取得部(52)と、
前記通電状態取得部における前記通電状態の取得条件を、前記負荷回路の駆動状態に応じて変更可能に設けられた、変更部(53)と、
前記通電状態取得部によって取得された前記通電状態に基づいて、前記負荷駆動システムを前記過電流から保護する過電流保護動作を実行するように設けられた、保護動作部(51)と、
を備えた、過電流保護装置。 - 前記通電状態取得部は、前記通電状態に対応する電気信号を受信して、この電気信号を変換又は増幅するように設けられ、
前記変更部は、前記通電状態取得部における前記電気信号の変換又は増幅のゲインを変更するように設けられた、請求項1に記載の過電流保護装置。 - 前記通電状態取得部は、
前記通電状態に対応する電気信号を受信して、この電気信号を変換又は増幅するように設けられた、第一取得部(521)と、
前記電気信号を受信して、この電気信号を前記第一取得部とは異なるゲインで変換又は増幅するように設けられた、第二取得部(522)と、
を備え、
前記変更部は、前記第一取得部によって取得された前記通電状態と、前記第二取得部によって取得された前記通電状態とのうちのいずれか一方を選択するように設けられた、請求項1に記載の過電流保護装置。
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JP2016228020A JP2018085857A (ja) | 2016-11-24 | 2016-11-24 | 過電流保護装置 |
US15/807,757 US10199925B2 (en) | 2016-11-24 | 2017-11-09 | Overcurrent protection apparatus |
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JP2016228020A JP2018085857A (ja) | 2016-11-24 | 2016-11-24 | 過電流保護装置 |
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JP6707054B2 (ja) * | 2017-04-06 | 2020-06-10 | 株式会社デンソーテン | 過電流保護装置及び車両用電子制御ユニット |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61214715A (ja) * | 1985-03-15 | 1986-09-24 | 株式会社東芝 | 静止形反限時継電器 |
JPH1183911A (ja) * | 1997-09-08 | 1999-03-26 | Nissan Motor Co Ltd | 電流検出回路 |
JP2001043904A (ja) * | 1999-07-30 | 2001-02-16 | Fujitsu Ltd | 電流モニター回路 |
JP2013062976A (ja) * | 2011-09-14 | 2013-04-04 | Anden | 過電流保護回路 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5327101B2 (ja) | 2010-03-03 | 2013-10-30 | アンデン株式会社 | 過電流保護回路 |
JP6133019B2 (ja) | 2011-09-28 | 2017-05-24 | アンデン株式会社 | 過電流保護回路 |
US9225158B2 (en) | 2011-09-14 | 2015-12-29 | Denso Corporation | Overcurrent protection circuit |
JP6299740B2 (ja) * | 2015-12-25 | 2018-03-28 | アンデン株式会社 | 過電流保護回路 |
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2016
- 2016-11-24 JP JP2016228020A patent/JP2018085857A/ja active Pending
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2017
- 2017-11-09 US US15/807,757 patent/US10199925B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61214715A (ja) * | 1985-03-15 | 1986-09-24 | 株式会社東芝 | 静止形反限時継電器 |
JPH1183911A (ja) * | 1997-09-08 | 1999-03-26 | Nissan Motor Co Ltd | 電流検出回路 |
JP2001043904A (ja) * | 1999-07-30 | 2001-02-16 | Fujitsu Ltd | 電流モニター回路 |
JP2013062976A (ja) * | 2011-09-14 | 2013-04-04 | Anden | 過電流保護回路 |
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US20180145581A1 (en) | 2018-05-24 |
US10199925B2 (en) | 2019-02-05 |
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