JP6070841B2 - 過電流検出回路 - Google Patents
過電流検出回路 Download PDFInfo
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- JP6070841B2 JP6070841B2 JP2015522697A JP2015522697A JP6070841B2 JP 6070841 B2 JP6070841 B2 JP 6070841B2 JP 2015522697 A JP2015522697 A JP 2015522697A JP 2015522697 A JP2015522697 A JP 2015522697A JP 6070841 B2 JP6070841 B2 JP 6070841B2
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- reference voltage
- circuit
- voltage
- switching element
- resistor
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- 238000001514 detection method Methods 0.000 title claims description 71
- 230000000875 corresponding effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
- G01R19/16547—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies voltage or current in AC supplies
-
- 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
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- 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
- H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
- H03K17/0828—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in composite switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/14—Modifications for compensating variations of physical values, e.g. of temperature
-
- 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
- H02H3/08—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
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H6/00—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
-
- 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
- H03K2217/0027—Measuring means of, e.g. currents through or voltages across the switch
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Conversion In General (AREA)
- Control Of Voltage And Current In General (AREA)
- Control Of Electrical Variables (AREA)
- Electronic Switches (AREA)
- Measurement Of Current Or Voltage (AREA)
Description
前記ハイサイド側スイッチング素子に組み込まれた電流検出素子の出力から該ハイサイド側スイッチング素子に流れる電流に比例した電圧を生成する電流検出抵抗と、
一定の基準電圧を抵抗分割して前記電流検出素子の出力温度特性に相関した温度特性を有する参照電圧を生成する参照電圧生成回路と、
この参照電圧生成回路にて生成された前記参照電圧と前記電流検出抵抗を介して検出される電圧とを比較して前記ハイサイド側スイッチング素子に流れる電流の過電流を検出する比較器と
を具備したことを特徴としている。
2 出力アンプ
3 電流検出抵抗
4 参照電圧生成回路
5 比較器
6 過電流検出回路
11 第1の抵抗分圧回路
12 第2の抵抗分圧回路
13 計装アンプ
14 バッファアンプ
Q スイッチング素子(IGBT)
Claims (4)
- 入力電力をスイッチングするスイッチング素子を直列に接続して形成したハーフブリッジ回路のハイサイド側スイッチング素子をオン・オフ駆動するドライバ回路に設けられ、前記ハイサイド側スイッチング素子に流れる電流を検出して前記ドライバ回路の動作を制御する過電流検出回路であって、
前記ハイサイド側スイッチング素子に組み込まれた電流検出素子の出力から該ハイサイド側スイッチング素子に流れる電流に比例した電圧を生成する電流検出抵抗と、
一定の基準電圧を抵抗分割して前記電流検出素子の出力温度特性に比例した温度特性を有する参照電圧を生成する参照電圧生成回路と、
この参照電圧生成回路にて生成された前記参照電圧と前記電流検出抵抗を介して検出される電圧とを比較して前記ハイサイド側スイッチング素子に流れる電流の過電流を検出する比較器とを具備した過電流検出回路において、
前記参照電圧生成回路は、温度特性の異なる2種類の抵抗のみを直列に接続して前記基準電圧と前記ハーフブリッジ回路の中点電圧である基準電位との間に介装して前記基準電圧を抵抗分割する第1の抵抗分圧回路と、温度特性の等しい抵抗のみを直列に接続して前記基準電圧と前記基準電位との間に介装して前記基準電圧を抵抗分割する第2の抵抗分圧回路と、これらの第1および第2の抵抗分圧回路の各分圧出力電圧の差電圧に応じて前記参照電圧を生成する計装アンプとを含むことを特徴とする過電流検出回路。 - 前記温度特性の異なる2種類の抵抗の一方は、抵抗温度係数を零(0)とみなし得る低温度係数抵抗体からなる請求項1に記載の過電流検出回路。
- 前記計装アンプは、ゲイン調整用の抵抗とオフセット調整用の抵抗とを含み、これらの抵抗を調整することで前記参照電圧の温度特性を可変設定可能なものである請求項1に記載の過電流検出回路。
- 前記スイッチング素子はIGBTであって、前記電流検出素子は前記IGBTに一体に設けられて該IGBTにミラー接続された電流センスIGBTである請求項1に記載の過電流検出回路。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013123180 | 2013-06-11 | ||
JP2013123180 | 2013-06-11 | ||
PCT/JP2014/063914 WO2014199816A1 (ja) | 2013-06-11 | 2014-05-27 | 過電流検出回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP6070841B2 true JP6070841B2 (ja) | 2017-02-01 |
JPWO2014199816A1 JPWO2014199816A1 (ja) | 2017-02-23 |
Family
ID=52022115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015522697A Active JP6070841B2 (ja) | 2013-06-11 | 2014-05-27 | 過電流検出回路 |
Country Status (3)
Country | Link |
---|---|
US (1) | US9671437B2 (ja) |
JP (1) | JP6070841B2 (ja) |
WO (1) | WO2014199816A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112448704A (zh) * | 2019-08-27 | 2021-03-05 | 株式会社东芝 | 电流检测电路 |
Families Citing this family (17)
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KR20160032457A (ko) * | 2014-09-16 | 2016-03-24 | 현대모비스 주식회사 | Dc-dc 컨버터의 출력전류 센싱 방법 및 장치 |
EP3293873B1 (en) * | 2015-12-07 | 2021-01-13 | Fuji Electric Co., Ltd. | Voltage generation circuit and overcurrent detection circuit |
US10148082B2 (en) * | 2016-02-24 | 2018-12-04 | Honeywell International Inc. | System and method for multi-level electronic protection using combination of current sensing and temperature sensing |
DE102016209354A1 (de) * | 2016-05-30 | 2017-11-30 | Bayerische Motoren Werke Aktiengesellschaft | Vorrichtung zum schutz eines elektrischen netzes in einem fahrzeug sowie bordnetz und fahrzeug |
DE112017000318B4 (de) * | 2016-06-03 | 2024-01-18 | Fuji Electric Co., Ltd. | Halbleitervorrichtung |
JP6791250B2 (ja) * | 2016-08-29 | 2020-11-25 | 富士電機株式会社 | 絶縁ゲート型半導体素子の駆動回路 |
US10644499B2 (en) * | 2017-09-21 | 2020-05-05 | Nxp B.V. | Current limiter |
CN109687695B (zh) * | 2017-10-19 | 2020-06-26 | 华硕电脑股份有限公司 | 电源系统 |
TWI654828B (zh) | 2018-05-21 | 2019-03-21 | 矽統科技股份有限公司 | 可組態式放大器模組 |
US10976351B2 (en) | 2019-02-12 | 2021-04-13 | Nxp B.V. | Current monitoring device |
JP7134905B2 (ja) | 2019-03-14 | 2022-09-12 | 株式会社東芝 | 半導体集積回路 |
US11193957B2 (en) | 2019-08-13 | 2021-12-07 | Analog Devices International Unlimited Company | Shunt resistor averaging techniques |
US11137419B2 (en) | 2019-12-17 | 2021-10-05 | Analog Devices International Unlimited Company | Mutiple range current sensor techniques |
US11431334B2 (en) * | 2020-04-06 | 2022-08-30 | Analog Devices International Unlimited Company | Closed loop switch control system and method |
KR102646255B1 (ko) * | 2021-04-22 | 2024-03-11 | 엘에스일렉트릭(주) | 파워 디바이스 보호 장치 |
US12119735B2 (en) * | 2022-02-25 | 2024-10-15 | Stmicroelectronics Asia Pacific Pte Ltd | Hardware and methods for voltage and current sensing |
CN118091237B (zh) * | 2024-04-19 | 2024-08-13 | 深圳贝特莱电子科技股份有限公司 | 一种电流过流检测电路 |
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JP2001345686A (ja) * | 2000-06-05 | 2001-12-14 | Nissan Motor Co Ltd | 電流検出回路 |
JP2004045305A (ja) * | 2002-07-15 | 2004-02-12 | Mitsubishi Electric Corp | 過電流検出回路 |
JP2005342443A (ja) * | 2004-06-07 | 2005-12-15 | Saitama Prefecture | すべり検出システム及びすべり検出方法。 |
JP2006221241A (ja) * | 2005-02-08 | 2006-08-24 | Toyota Central Res & Dev Lab Inc | 基準電圧回路 |
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JP2001078439A (ja) * | 1999-09-06 | 2001-03-23 | Murata Mfg Co Ltd | スイッチング電源装置 |
JP4905208B2 (ja) * | 2006-10-25 | 2012-03-28 | 株式会社デンソー | 過電流検出回路 |
JP6264379B2 (ja) * | 2013-09-06 | 2018-01-24 | 三菱電機株式会社 | 半導体装置 |
-
2014
- 2014-05-27 WO PCT/JP2014/063914 patent/WO2014199816A1/ja active Application Filing
- 2014-05-27 JP JP2015522697A patent/JP6070841B2/ja active Active
-
2015
- 2015-07-09 US US14/794,891 patent/US9671437B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001345686A (ja) * | 2000-06-05 | 2001-12-14 | Nissan Motor Co Ltd | 電流検出回路 |
JP2004045305A (ja) * | 2002-07-15 | 2004-02-12 | Mitsubishi Electric Corp | 過電流検出回路 |
JP2005342443A (ja) * | 2004-06-07 | 2005-12-15 | Saitama Prefecture | すべり検出システム及びすべり検出方法。 |
JP2006221241A (ja) * | 2005-02-08 | 2006-08-24 | Toyota Central Res & Dev Lab Inc | 基準電圧回路 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112448704A (zh) * | 2019-08-27 | 2021-03-05 | 株式会社东芝 | 电流检测电路 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2014199816A1 (ja) | 2017-02-23 |
US9671437B2 (en) | 2017-06-06 |
WO2014199816A1 (ja) | 2014-12-18 |
US20150309090A1 (en) | 2015-10-29 |
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