EP1929606A1 - Hochstrom-leistungsendstufe - Google Patents
Hochstrom-leistungsendstufeInfo
- Publication number
- EP1929606A1 EP1929606A1 EP06793712A EP06793712A EP1929606A1 EP 1929606 A1 EP1929606 A1 EP 1929606A1 EP 06793712 A EP06793712 A EP 06793712A EP 06793712 A EP06793712 A EP 06793712A EP 1929606 A1 EP1929606 A1 EP 1929606A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- current
- power
- power transistors
- diode
- transistors
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/53—Generators characterised by the type of circuit or by the means used for producing pulses by the use of an energy-accumulating element discharged through the load by a switching device controlled by an external signal and not incorporating positive feedback
-
- 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
- H02H7/08—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 dynamo-electric motors
- H02H7/0833—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 dynamo-electric motors for electric motors with control arrangements
- H02H7/0838—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 dynamo-electric motors for electric motors with control arrangements with H-bridge circuit
Definitions
- the invention relates to a high-current power output stage comprising power transistors, in particular MOSFET power transistors.
- High-current output stages are used, for example, in control circuits of motor vehicles for driving electric motors, for example for an electric power steering device or an electric brake booster device.
- the high-power output stages work in normal operation, for example, with currents in the order of 100 amperes.
- the required electrical energy is provided by a generator device or a battery. Battery change an off ⁇ the battery may accidentally reversed polarity with the high current power output stage are coupled. The da ⁇ by induced current flow in the high-current stage linenend- this can damage or destroy.
- Amplifier includes a measuring resistor.
- the flow of current in the output stage is determined by the microcomputer from aistsab ⁇ falling across the measuring resistor.
- the current flow in the output stage can be interrupted by appropriate control of the output stage by the microcomputer.
- a fuse is arranged to prevent a short-circuit and at the same time alloying the amplifier to a fire.
- a relay is provided, which interrupts the current flow during polarity reversal.
- a suppressor diode is arranged in parallel to a battery and to electrical consumers. In a supply line between the battery and the suppressor diode or the electrical loads a fuse is arranged. When polarity reversing the suppressor diode is conductive and the fuse triggers by the current flow caused thereby.
- the object of the invention is to provide a high-current hoend ⁇ stage, which is protected against reverse polarity and is easy and inexpensive.
- the invention is characterized by a high-current power output stage, which comprises at least four power transistors, two electrical leads, and at least one Schmelzsi ⁇ insurance.
- the at least four power transistors each have a diode which is locked during normal operation of each ⁇ bib power transistor.
- the two electrical leads see couple the at least four power transistors as a supply potential and a reference potential ⁇ that each two of the at least four power transistors are arranged in series to each other, and that is electrically connected between the supply potential and the reference potential.
- the at least one fusible link is connected in min ⁇ least one of the two electrical leads electrically connected in series to the at least four power transistors.
- the at least one fuse is triggered by a current flowing in swapping of the supply potential and the reference potential by the direction then in the forward ⁇ respectively arranged diode of the at least four power transistors.
- the invention is based on the recognition that power transistors ⁇ , in particular MOSFET power transistors, each having the diode. This is in normal operation of the high ⁇ current power output stage, ie in ungpoltem operation, locked. In the event of polarity reversal by switching theagedspo ⁇ tenzials and the reference potential, however, the diode is lei ⁇ tend. As a result, when reversed, a current flows through the diodes of the power transistors and through the fuse. This current is so high that the fuse is triggered by this.
- the two electrical leads are sized to carry the current for a duration of wear that is longer than a firing period of the fuse.
- the high-current power output stage is, for example, as an H-bridge with four power transistors formed correspondingly has six or Leis ⁇ tung transistors for providing three-phase phase current.
- the high-current power output stage can also have more than six power transistors.
- the at least four power transistors are each arranged as a semiconductor chip directly on a common carrier.
- At least one of the two electrical leads comprises at least one bonding wire.
- Transistors in the form of semiconductor chips are particularly schüns ⁇ term and allow a particularly good heat dissipation.
- the current-carrying capacity of the electrical supply line in the region of the at least one bonding wire can be dimensioned very easily via the suitable choice of the thickness of the respective bonding wire or via the number of bonding wires.
- the high-current power output stage is compact and inexpensive to manufacture by the common carrier.
- At least one additional diode is arranged parallel to the min ⁇ least four power transistors electrically connected between the supply potential and the reference potential that this is locked power output stage high current in the normal operation of and swapping the supply potential and the reference potential is conductive.
- Figure 2 is an equivalent circuit diagram of the circuit arrangement in a polarity reversal of a battery
- FIG. 3 shows an embodiment of the high-current power output stage. Elements of the same construction or function are provided across the figures with the same reference numerals.
- a circuit arrangement comprises a battery Bat, a high-current power output stage PA and an electric motor M (Fi ⁇ gur 1).
- the high-current power output stage PA is coupled via a te ers ⁇ supply line Zl to a supply potential Up and over a second feed line Z2 to a reference potential Un the battery BAT.
- the battery Bat provides a battery voltage Ubat for operation of high current power end stage ⁇ ready.
- the high-current power output stage PA is elekt ⁇ driven coupled to the electric motor M.
- the electric motor M is operated by three-phase current and the high-current power ⁇ power amplifier PA is formed, from the battery voltage Ubat the three phases of the three-phase current for operating the Elektromo ⁇ tors M to create.
- the high-current power output stage PA comprises for each of the three phases of the three-phase current in each case a series connection of two power transistors T, each having a diode D.
- the power transistors T are preferably designed as MOSFET power transistors.
- the respective series connection of the power transistors T is coupled to the first supply line Z1 and the second supply line Z2 and is thus arranged electrically between the supply potential Up and the reference potential Un.
- the diodes D are respectively arranged in the blocking direction, that is, the cathode of diode D is coupled to the opposite ⁇ to the reference potential Un positive supply potential Up and the anode of the diode D with the reference Spoten ⁇ zial un coupled.
- the power transistors T are driven by a control device, not shown.
- the high-current power output stage PA can also be designed as a part of the control device.
- a fuse S is provided in the first electrical lead Zl .
- the fusible link S is dimensioned so that it will not fire in the normal operation of the high current power output stage PA.
- the diodes D are the power transistors T and the possibly provided additional diode DZ in which Normalbe ⁇ drive is locked, the current flow is through the Blown fuses S and the first and second electrical supply line Zl, Z2, depending on the driving of the power transistors T.
- the diode D are the power transistors T and the possibly provided additional diode DZ arranged in through ⁇ forward direction and thus conductive.
- FIG. 2 shows an equivalent circuit diagram of the circuit arrangement according to FIG. 1 during polarity reversal of the battery Bat.
- a current I through the fuse S and through the first and the second electrical supply line Zl, Z2 is then significantly higher than the current in the normal operation, for example by a factor between see about three and ten.
- the current I is essentially predetermined by the internal resistance of the battery Bat and is dependent on a state of charge of the battery Bat.
- the fuse S is dimensioned so that it triggers at the current I and the high-current power amplifier PA so electrically separated from the battery Bat. As a result, the high-current power amplifier PA is protected from damage by reversing the polarity of the battery Bat.
- the requirements are reduced at the current carrying capacity of each individual ⁇ a power transistor T and the diode D.
- the current I is divided between the three series circuits of the two which are arranged in parallel to one another
- the additional diode DZ is designed so that above this also the double diode voltage UD drops.
- the zusharm ⁇ Liche diode DZ is to processing, for example, as a series scarf ⁇ two individual diodes with the diode voltage UD trained det.
- Figure 3 shows an embodiment of the high-current power ⁇ power amplifier PA.
- the six power transistors T in the form of each one semiconductor chip 2 applied, ie, the power transistors T preferably have no housing.
- the first and the second supply line Zl, Z2 include bonding wires W, on which the respective semiconductor chip 2 is coupled to conductor tracks attached to the support 1 ⁇ are arranged.
- the conductor tracks of the carrier 1 are coupled via bond wires W to further strip conductors, which are arranged, for example, on a printed circuit board.
- the interconnects, the further interconnects and the bonding wires W are so dimensioned ⁇ ned that they can carry the current I in the exchange of the supply potential Up and the reference potential Un for a Trag- period which is longer than a trip period of the fuse S. ,
- the tripping time duration can be several seconds, since the current flowing in the normal operation of the high-current power output stage PA, thus in the unpoled operation, is already very high, for example of the order of 100 amperes, and the current I flowing during the reversing is therefore only by a factor of eg about three to ten is greater than this.
- the fuse S must be dimensioned so that it certainly does not trigger during normal operation of the high-current power amplifier PA.
- the current carrying capacity of the first and the second to ⁇ line Zl, Z2 in the region of the bonding wires W very easy by the choice of suitable bond Wires W, for example, in terms of their thickness, or by the choice of a suitable number of mutually parallel bond wires W to dimension.
- suitable bond Wires W for example, in terms of their thickness, or by the choice of a suitable number of mutually parallel bond wires W to dimension.
- five mutually parallel ⁇ arranged bond wires W are provided to carry the current I can, if for normal operation, so the unpoled operation, already three mutually parallel bonding wires W are sufficient.
- more or fewer bond wires W may be provided depending on the requirements of the current carrying capacity.
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Amplifiers (AREA)
- Fuses (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005046682A DE102005046682A1 (de) | 2005-09-29 | 2005-09-29 | Hochstrom-Leistungsendstufe |
| PCT/EP2006/066590 WO2007036482A1 (de) | 2005-09-29 | 2006-09-21 | Hochstrom-leistungsendstufe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1929606A1 true EP1929606A1 (de) | 2008-06-11 |
Family
ID=37435300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06793712A Withdrawn EP1929606A1 (de) | 2005-09-29 | 2006-09-21 | Hochstrom-leistungsendstufe |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7696809B2 (de) |
| EP (1) | EP1929606A1 (de) |
| JP (1) | JP2009510989A (de) |
| KR (1) | KR101363810B1 (de) |
| DE (1) | DE102005046682A1 (de) |
| WO (1) | WO2007036482A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101446994B1 (ko) * | 2013-12-09 | 2014-10-07 | 주식회사 모브릭 | Mit 기술을 적용한 자동 고온 및 고전류 차단 방법 및 이러한 방법을 사용하는 스위치 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01291628A (ja) * | 1988-05-18 | 1989-11-24 | Fuji Electric Co Ltd | 電圧形インバータの過電流保護方法 |
| JP2578350Y2 (ja) * | 1992-09-08 | 1998-08-13 | 株式会社東海理化電機製作所 | モータ駆動回路 |
| JPH06233408A (ja) * | 1993-02-02 | 1994-08-19 | Honda Motor Co Ltd | 電動車用モータ給電装置 |
| DE19501985A1 (de) * | 1995-01-24 | 1996-07-25 | Teves Gmbh Alfred | Verpolschutz |
| JPH1032094A (ja) * | 1996-07-16 | 1998-02-03 | Iwasaki Electric Co Ltd | 照明装置 |
| JPH1189246A (ja) * | 1997-09-02 | 1999-03-30 | Denso Corp | 三相インバータモジュール |
| DE10005183A1 (de) * | 2000-02-05 | 2001-08-09 | Bosch Gmbh Robert | Gleichrichteranordnung |
| JP2001298961A (ja) * | 2000-04-18 | 2001-10-26 | Mitsubishi Electric Corp | インバータ保護回路及びインバータ駆動送風機 |
| DE10208981A1 (de) * | 2001-03-23 | 2002-09-26 | Heinz Leiber | Kraftfahrzeug mit zwei Bordnetzen |
| JP3791375B2 (ja) * | 2001-09-27 | 2006-06-28 | 株式会社明電舎 | 電動車両の制御方法と装置 |
| JP3861704B2 (ja) * | 2002-01-31 | 2006-12-20 | 株式会社デンソー | 車両用冷却ファンモータの駆動装置 |
| US6747300B2 (en) * | 2002-03-04 | 2004-06-08 | Ternational Rectifier Corporation | H-bridge drive utilizing a pair of high and low side MOSFETs in a common insulation housing |
| JP3582523B2 (ja) * | 2002-09-17 | 2004-10-27 | トヨタ自動車株式会社 | 電気負荷装置、異常処理方法、および電気負荷の異常処理をコンピュータに実行させるためのプログラムを記録したコンピュータ読取り可能な記録媒体 |
| JP2005065396A (ja) * | 2003-08-11 | 2005-03-10 | Toshiba Mitsubishi-Electric Industrial System Corp | 電力変換装置 |
| US7049778B2 (en) * | 2004-02-09 | 2006-05-23 | Nippon Yusoki Co., Ltd. | Inverter control apparatus and inverter control method |
-
2005
- 2005-09-29 DE DE102005046682A patent/DE102005046682A1/de not_active Ceased
-
2006
- 2006-09-21 WO PCT/EP2006/066590 patent/WO2007036482A1/de not_active Ceased
- 2006-09-21 US US11/992,793 patent/US7696809B2/en not_active Expired - Fee Related
- 2006-09-21 KR KR1020087009688A patent/KR101363810B1/ko not_active Expired - Fee Related
- 2006-09-21 JP JP2008532739A patent/JP2009510989A/ja active Pending
- 2006-09-21 EP EP06793712A patent/EP1929606A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007036482A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US7696809B2 (en) | 2010-04-13 |
| WO2007036482A1 (de) | 2007-04-05 |
| US20090108909A1 (en) | 2009-04-30 |
| JP2009510989A (ja) | 2009-03-12 |
| KR101363810B1 (ko) | 2014-02-14 |
| KR20080063357A (ko) | 2008-07-03 |
| DE102005046682A1 (de) | 2007-04-05 |
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Legal Events
| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 17P | Request for examination filed |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: CONTINENTAL AUTOMOTIVE GMBH |
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| RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB |
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| DAX | Request for extension of the european patent (deleted) | ||
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
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