JP7006209B2 - 負荷駆動回路 - Google Patents
負荷駆動回路 Download PDFInfo
- Publication number
- JP7006209B2 JP7006209B2 JP2017234251A JP2017234251A JP7006209B2 JP 7006209 B2 JP7006209 B2 JP 7006209B2 JP 2017234251 A JP2017234251 A JP 2017234251A JP 2017234251 A JP2017234251 A JP 2017234251A JP 7006209 B2 JP7006209 B2 JP 7006209B2
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- JP
- Japan
- Prior art keywords
- terminal
- circuit
- power supply
- load
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
-
- 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
- H02H3/003—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 reversal of power transmission direction
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to mechanical injury, e.g. rupture of line, breakage of earth connection
- H02H5/105—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to mechanical injury, e.g. rupture of line, breakage of earth connection responsive to deterioration or interruption of earth connection
-
- 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
-
- 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
- H03K17/0812—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the control circuit
-
- 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
- H03K17/6877—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 the control circuit comprising active elements different from those used in the output circuit
-
- 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
- H02M3/1555—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 for the generation of a regulated current to a load whose impedance is substantially inductive
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
-
- 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
- H03K2217/0063—High side switches, i.e. the higher potential [DC] or life wire [AC] being directly connected to the switch and not via the load
Landscapes
- Electronic Switches (AREA)
- Power Conversion In General (AREA)
Description
(実施の形態1)
図1は実施の形態1に係る負荷駆動回路10の構成を示す回路図である。負荷駆動回路10は、電源1から負荷2への電力供給経路の中途に設けられ、制御回路11、半導体スイッチ12、還流回路13、第1~第3監視回路14,15,16、ツェナーダイオード17等を備える。電源1は例えば車両が備えるバッテリであり、負荷2は例えばエンジン冷却用のファン駆動モータなどの誘電性負荷である。
図2はシグナルグランドが外れた場合の負荷駆動回路10の動作を説明する説明図である。図2はSGND端子G1がアースポイントから外れた状態を示している。この場合、制御回路11の内部インピーダンスに応じてグランド電位が上昇することにより、制御回路11にリセットがかかる。この場合、制御回路11は還流回路制御信号を出力しないので、第2監視回路15が備える2つのトランジスタ151,152、及び第3監視回路16が備えるトランジスタ161はいずれもオフとなる。この結果、還流回路13には、電源電圧が供給されないので、還流回路13が備えるFET132はオフされる。
図5は実施の形態2に係る負荷駆動回路10の構成を示す回路図である。実施の形態2に係る負荷駆動回路10は、実施の形態1で説明した負荷駆動回路10から第2監視回路15を取り除いた回路構成を有しており、制御回路11、半導体スイッチ12、還流回路13、第1監視回路14、第3監視回路16、ツェナーダイオード17等を備える。なお、第1監視回路14が備えるトランジスタ141のコレクタは、ダイオード145及び抵抗146を介して電源入力ラインL1に接続されている。
11 制御回路
11a 制御端子(第1制御端子)
11b 制御端子(第2制御端子)
11c リセット端子
12 半導体スイッチ
13 還流回路
131 還流ダイオード
132 FET(保護スイッチ)
14 第1監視回路(接続回路)
15 第2監視回路(第1遮断回路)
16 第3監視回路(第2遮断回路)
T1 電源端子
T2 負荷端子
G1 シグナルグランド端子(第1端子)
G2 パワーグランド端子(第2端子)
Claims (4)
- 電源を接続する電源端子と、
該電源端子に接続された電源から電力が供給されるべき負荷を接続する負荷端子と、
前記電源端子と前記負荷端子との間に接続される半導体スイッチと、
該半導体スイッチに接続された還流ダイオードと、該還流ダイオードに直列に接続され、前記電源の逆接時にオフして前記電源から前記還流ダイオードを介した前記半導体スイッチへの電流の流れを阻止する保護スイッチとを備える還流回路と、
前記半導体スイッチの開閉を制御するための信号を出力する第1制御端子と、前記保護スイッチの開閉を制御するための信号を出力する第2制御端子とを備える制御回路と、
前記制御回路を第1固定電位に接続する第1端子と、
前記還流ダイオードのアノードを前記保護スイッチを介して第2固定電位に接続する第2端子と、
前記第2制御端子と前記第1端子とを接続する導通路に介装された接続スイッチを備え、前記第1端子と前記第2端子との間の電位差の上昇を検知した場合、前記接続スイッチをオンすることにより前記第2制御端子と前記第1端子とを接続する接続回路と、
前記半導体スイッチを介すことなく、前記保護スイッチと前記電源端子との間に接続されたツェナーダイオードと
を備える負荷駆動回路。 - 前記接続回路は、
前記第2端子と前記第2固定電位との間の電気的な接続が切断した場合に伴う電位差の上昇を検知する
請求項1に記載の負荷駆動回路。 - 前記第2制御端子と前記還流回路との間に設けられており、前記第1端子と前記第1固定電位との間の電気的な接続が切断した場合に、前記保護スイッチをオフさせる第1遮断回路
を備える請求項1又は請求項2に記載の負荷駆動回路。 - 前記第1遮断回路と前記還流回路との間に設けられており、前記電源端子と前記第2端子との間の電位差の下降を検知した場合に、前記保護スイッチをオフさせる第2遮断回路
を更に備える請求項3に記載の負荷駆動回路。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017234251A JP7006209B2 (ja) | 2017-12-06 | 2017-12-06 | 負荷駆動回路 |
US16/770,339 US11228305B2 (en) | 2017-12-06 | 2018-11-22 | Load drive circuit configured to prevent a flyback current |
PCT/JP2018/043245 WO2019111734A1 (ja) | 2017-12-06 | 2018-11-22 | 負荷駆動回路 |
CN201880074724.7A CN111357200B (zh) | 2017-12-06 | 2018-11-22 | 负载驱动电路 |
EP18886768.3A EP3723289B1 (en) | 2017-12-06 | 2018-11-22 | Load drive circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017234251A JP7006209B2 (ja) | 2017-12-06 | 2017-12-06 | 負荷駆動回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019103063A JP2019103063A (ja) | 2019-06-24 |
JP7006209B2 true JP7006209B2 (ja) | 2022-01-24 |
Family
ID=66750150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017234251A Active JP7006209B2 (ja) | 2017-12-06 | 2017-12-06 | 負荷駆動回路 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11228305B2 (ja) |
EP (1) | EP3723289B1 (ja) |
JP (1) | JP7006209B2 (ja) |
CN (1) | CN111357200B (ja) |
WO (1) | WO2019111734A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7435512B2 (ja) | 2021-03-15 | 2024-02-21 | 住友電装株式会社 | 車載用保護装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005269748A (ja) | 2004-03-17 | 2005-09-29 | Hitachi Ltd | 負荷駆動回路 |
JP2005307957A (ja) | 2004-03-25 | 2005-11-04 | Denso Corp | 二次空気導入システム用駆動装置 |
JP2008276727A (ja) | 2007-04-03 | 2008-11-13 | Denso Corp | 負荷駆動装置 |
JP2009133815A (ja) | 2007-10-30 | 2009-06-18 | Denso Corp | 断線検出回路 |
US20150137714A1 (en) | 2013-11-20 | 2015-05-21 | Hyundai Mobis Co., Ltd. | Vehicle motor drive circuit |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0883909A (ja) * | 1994-09-09 | 1996-03-26 | Mitsubishi Electric Corp | 半導体集積回路 |
JP3520291B2 (ja) * | 1998-04-20 | 2004-04-19 | 株式会社日立ユニシアオートモティブ | 車両用電気負荷制御回路 |
GB2368210A (en) * | 2000-10-21 | 2002-04-24 | Trw Ltd | Controllable current decay rate for hydraulic brake system solenoids |
DE102005061215B4 (de) * | 2005-12-21 | 2019-06-06 | Lucas Automotive Gmbh | Motorsteuerungsschaltung mit Fehlerüberwachung |
JP5373257B2 (ja) * | 2006-08-04 | 2013-12-18 | 日立オートモティブシステムズ株式会社 | エンジン用高圧ポンプ駆動回路 |
US20080247108A1 (en) | 2007-04-03 | 2008-10-09 | Denso Corporation | Load drive device |
DE102008037400A1 (de) * | 2007-10-30 | 2009-05-07 | Denso Corporation, Kariya | Lasttreiber mit Drahtbruch-Erfassungsschaltung |
JP2010044521A (ja) | 2008-08-11 | 2010-02-25 | Autonetworks Technologies Ltd | 誘導性負荷駆動回路 |
JP2014218923A (ja) * | 2013-05-07 | 2014-11-20 | 株式会社デンソー | 負荷駆動回路およびサージ保護回路 |
JP6417427B2 (ja) * | 2014-12-05 | 2018-11-07 | 日立オートモティブシステムズ株式会社 | 負荷駆動装置及びそれを用いた車載制御装置 |
US9768611B2 (en) | 2015-02-18 | 2017-09-19 | Continental Automotive Systems, Inc. | Apparatus and method for reverse battery protection |
JP6488930B2 (ja) * | 2015-07-21 | 2019-03-27 | 株式会社デンソー | 電子制御装置 |
JP2018007090A (ja) * | 2016-07-05 | 2018-01-11 | 住友電装株式会社 | 誘導性負荷駆動回路 |
-
2017
- 2017-12-06 JP JP2017234251A patent/JP7006209B2/ja active Active
-
2018
- 2018-11-22 WO PCT/JP2018/043245 patent/WO2019111734A1/ja unknown
- 2018-11-22 EP EP18886768.3A patent/EP3723289B1/en active Active
- 2018-11-22 US US16/770,339 patent/US11228305B2/en active Active
- 2018-11-22 CN CN201880074724.7A patent/CN111357200B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005269748A (ja) | 2004-03-17 | 2005-09-29 | Hitachi Ltd | 負荷駆動回路 |
JP2005307957A (ja) | 2004-03-25 | 2005-11-04 | Denso Corp | 二次空気導入システム用駆動装置 |
JP2008276727A (ja) | 2007-04-03 | 2008-11-13 | Denso Corp | 負荷駆動装置 |
JP2009133815A (ja) | 2007-10-30 | 2009-06-18 | Denso Corp | 断線検出回路 |
US20150137714A1 (en) | 2013-11-20 | 2015-05-21 | Hyundai Mobis Co., Ltd. | Vehicle motor drive circuit |
Also Published As
Publication number | Publication date |
---|---|
EP3723289B1 (en) | 2023-03-15 |
US20200366278A1 (en) | 2020-11-19 |
CN111357200A (zh) | 2020-06-30 |
EP3723289A1 (en) | 2020-10-14 |
US11228305B2 (en) | 2022-01-18 |
EP3723289A4 (en) | 2021-01-20 |
WO2019111734A1 (ja) | 2019-06-13 |
JP2019103063A (ja) | 2019-06-24 |
CN111357200B (zh) | 2023-08-08 |
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