WO2013079551A2 - Circuit assembly for controlling at least two loads from a supply source - Google Patents

Circuit assembly for controlling at least two loads from a supply source Download PDF

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Publication number
WO2013079551A2
WO2013079551A2 PCT/EP2012/073870 EP2012073870W WO2013079551A2 WO 2013079551 A2 WO2013079551 A2 WO 2013079551A2 EP 2012073870 W EP2012073870 W EP 2012073870W WO 2013079551 A2 WO2013079551 A2 WO 2013079551A2
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WIPO (PCT)
Prior art keywords
loads
switch
connection
load
supply source
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PCT/EP2012/073870
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German (de)
French (fr)
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WO2013079551A3 (en
Inventor
Franz Allmeier
Klaus Herdt
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Continental Automotive Gmbh
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Publication of WO2013079551A2 publication Critical patent/WO2013079551A2/en
Publication of WO2013079551A3 publication Critical patent/WO2013079551A3/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1877—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings controlling a plurality of loads
    • 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
    • H03K17/6871—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 output circuit comprising more than one controlled field-effect transistor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
    • F02D2041/2072—Bridge circuits, i.e. the load being placed in the diagonal of a bridge to be controlled in both directions

Definitions

  • Circuit arrangement for driving at least two loads from a supply source
  • these include capacitive loads such as piezo actuators for injection valves or inductive loads such as magnetic actuators for injection valves or various motors, for example for window regulators or windscreen wipers.
  • Low-side switch of the second bridge branch turned on and for operation in the other direction correspond to the high-side switch of the second bridge branch and the
  • a controllable direction switch is assigned to each load for each operating direction, each direction switch having a first connection having a first supply potential and a second connection each having a forward-biased diode connected to a connection of the loads associated therewith.
  • each load is associated with a controllable selector switch for each operating direction, each selector switch having a first terminal connected to a terminal of the load associated with it and a second terminal connected to a second supply potential.
  • the direction and selection switches are formed with power transistors with inversion diodes, wherein the drain terminals of the selection switches are connected via Zener diodes to the gate terminals of the selection switch.
  • the first supply potential is the positive potential of the supply circuit and the second supply potential is the negative potential of the supply source.
  • the selection switches are designed as low-side switches that can be realized more cost-effectively than high-side switches. Since two selection and thus low-side switches are used per load, this arrangement is of particular advantage.
  • circuit arrangement according to the invention can be used with inductive loads in a particularly advantageous manner.
  • the invention will be explained in more detail using an exemplary embodiment with the aid of a figure. It shows
  • Figure 1 shows a circuit arrangement according to the invention with four inductive loads and operated as a high-side switch direction switch and
  • FIG. 2 shows a circuit arrangement according to the invention with four inductive loads and operated as a low-side switch direction switch.
  • the circuit of Figure 1 shows an embodiment with four inductive loads Li - L4, which should be operated from a Ver sorgungsguelle with a positive supply potential V 0 and a negative supply potential GND.
  • first terminals of the loads Li-L4 are each connected via a diode Dl-D4, which is operated in the reverse direction, and a first direction switch Tl, which is designed as a line transistor with inverse diode, to the positive supply potential V 0 of the supply source.
  • the respectively second terminals of the loads Li - L4 are respectively connected via diodes D5 - D8, which are also operated in the reverse direction and a second direction switch T6, which is also designed as a power transistor with inverse diode, connected to the positive supply potential V 0 of the supply source.
  • a current flow from the supply source to the respective load Li - L4 is possible for charging the loads Li - L4.
  • the direction switches Tl, T6 are shown as N-channel MOS transistors, however, P-channel MOS transistors may also be used. However, when using low-cost N-channel MOS transistors, a voltage higher than the positive potential V 0 of the supply voltage must be provided for driving the gate terminals for the N-channel MOS transistors to turn on safely.
  • Each first terminal and each second terminal of the loads Li - L4 are also each connected via a selection switch T2 - T5 and T7 - T10 to the negative potential GND of the supply source.
  • the selection switches T2 - T5 and T7 - T10 are also designed as power transistors with inverse diodes.
  • the drain terminals of these selector switches T2 - T5 and T7 - T10 are connected in series with a current limiting resistor Rl - R8 and a Zener diode ZD1 - ZD8
  • the first direction switch Tl and the required selection switch T2 are turned on. If the first direction switch T 1 is switched off to switch off the first load Li, then the magnetic field built up in the first load Li can be connected by a current via the inverse diode of the selection switch T 7 connected to the first terminal of the load Li and connected to the second terminal, still included Switch off selected selector T2 by a corresponding current flow.
  • FIG. 2 shows a realization of the circuit arrangement is realized as a low-side switch switches Tl y direction, T6 'is shown.
  • diodes D are connected between the loads Li - arranged L4 and direction switches Tl y, T6 poled 'in the forward direction.
  • the selection switches ⁇ 2'-T5 'and T'-T10' arranged as high-side switches are designed as P-channel MOS transistors with inverse diodes in this exemplary embodiment. Otherwise, the same components are provided with the same reference numerals as in Figure 1 and only a "'" complements.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electronic Switches (AREA)

Abstract

The invention relates to a circuit assembly for controlling at least two reactive loads (L1, L2, L3, L4) to be bidirectionally operated from a supply source(V0, GND), wherein a controllable direction switch (T1, T6) is associated with all loads (L1, L2, L3, L4) for each operation direction, wherein each direction switch (T1, T6) is connected to a first supply potential (V0) by means of a first connection and to a connection of the loads (L1, L2, L3, L4) that is associated with the direction switch via a respective diode (D1-D8) polarized in the conducting direction by means of a second connection. A respective controllable selection switch (T2 - T5, T7 - T10) is associated with each load (L1, L2, L3, L4) for each operation direction, wherein each selection switch (T2 - T5, T7 - T10) is connected to a connection of the load (L1, L2, L3, L4) that is associated with the selection switch by means of a first connection and to a second supply potential (GND) by means of a second connection. The direction switches (T1, T6) and selection switches (T2 - T5, T7 - T10) are formed by power transistors having inverse diodes, wherein the drain connections of the selection switches (T2 - T5, T7 - T10) are connected to the gate connections of the selection switches (T2 - T5, T7 - T10) by means of zener diodes (ZD2 - ZD5, ZD7 - ZD10).

Description

Beschreibung description
Schaltungsanordnung zum Ansteuern wenigstens zweier Lasten aus einer Versorgungsguelle Circuit arrangement for driving at least two loads from a supply source
Insbesondere in Kraftfahrzeugen müssen eine große Anzahl von Lasten ein- und ausgeschaltet werden. Dazu zählen neben rein resistiven Beleuchtungsmitteln auch kapazitive Lasten wie Piezoaktoren für Einspritzventile oder induktive Lasten wie Magnetaktoren für Einspritzventile oder diverse Motoren beispielsweise für Fensterheber oder Scheibenwischer. Especially in motor vehicles, a large number of loads must be switched on and off. In addition to purely resistive lighting means, these include capacitive loads such as piezo actuators for injection valves or inductive loads such as magnetic actuators for injection valves or various motors, for example for window regulators or windscreen wipers.
Insbesondere bei Motoren aber auch bei magnetischen Ventilen ist es dabei häufig erforderlich, dass diese in zwei Richtungen betrieben werden können. Zur Ansteuerung solcher reaktiver Lasten wird dabei häufig eine Vollbrückenschaltung - eine sogenannte H-Brücke - verwendet, wie sie beispielsweise in der DE 199 50 144 AI gezeigt ist. Eine solche Vollbrücke, die im Kraftfahrzeug zumeist hohe Ströme schalten muss, ist mit Leistungstransistoren gebildet, von denen je zwei in Serie geschaltet zwischen dem positiven und dem negativen Potential der Versorgungsguelle verschaltet sind. Die zu betätigende Last ist dabei in der Brücke zwischen diesen beiden Serienschaltungen angeordnet. Zum Betreiben der Last in eine Richtung wird dabei der High-Side-Schalter des ersten Brückenzweiges und derIn particular, in motors but also in magnetic valves, it is often necessary that they can be operated in two directions. To control such reactive loads is often a full bridge circuit - a so-called H-bridge - used, as shown for example in DE 199 50 144 AI. Such a full bridge, which usually has to switch high currents in the motor vehicle, is formed by power transistors, of which two are each connected in series between the positive and the negative potential of the supply source. The load to be actuated is arranged in the bridge between these two series circuits. To operate the load in one direction while the high-side switch of the first bridge branch and the
Low-Side-Schalter des zweiten Brückenzweiges eingeschaltet und für den Betrieb in der anderen Richtung entsprechen der High-Side-Schalter des zweiten Brückenzweiges und der Low-side switch of the second bridge branch turned on and for operation in the other direction correspond to the high-side switch of the second bridge branch and the
Low-Side-Schalter des ersten Brückenzweiges . Low-side switch of the first bridge branch.
Um beispielsweise vier magnetische Aktoren für die Einspritzventile eines Vier-Zylindermotors betätigen zu können, sind entsprechend vier Vollbrücken mit insgesamt sechzehn Leistungstransistoren erforderlich. Dies ist nicht nur aufgrund der Kosten für die einzelnen Leistungstransistoren teuer sondern auch auf Grund des Flächenbedarfs auf einer Leiterplatte, die entsprechend größer und damit teurer gewählt werden muss. Es ist daher die Aufgabe der Erfindung, eine weniger aufwändige und kostengünstigere Schaltungsanordnung zum Ansteuern wenigstens zweier bidirektional aus einer Versorgungsguelle zu betreibender reaktiver Lasten anzugeben. For example, to operate four magnetic actuators for the injectors of a four-cylinder engine, four full bridges with a total of sixteen power transistors are required accordingly. This is expensive not only because of the cost of the individual power transistors but also because of the space required on a printed circuit board, which must be correspondingly larger and therefore more expensive. It is therefore an object of the invention to provide a less expensive and less expensive circuit arrangement for driving at least two bidirectionally from a supply source to be operated reactive loads.
Die Aufgabe wird gelöst durch eine Schaltungsanordnung gemäß Anspruch 1. vorteilhafte Weiterbildungen sind in den Unteransprüchen angegeben . Demnach ist in der erfindungsgemäßen Schaltungsanordnung allen Lasten für jede Betriebsrichtung ein steuerbarer Richtungsschalter zugeordnet, wobei jeder Richtungsschalter mit einem ersten Anschluss mit einem ersten Versorgungspotential und mit einem zweiten Anschluss über je eine in Durchlassrichtung gepolte Diode mit einem ihm zugeordneten Anschluss der Lasten verbunden ist. Außerdem ist jeder Last für jede Betriebsrichtung je ein steuerbarer Auswahlschalter zugeordnet, wobei jeder Auswahlschalter mit einem ersten Anschluss mit einem ihm zugeordneten Anschluss der Last und mit einem zweiten Anschluss mit einem zweiten Versorgungspotential verbunden ist. Die Richtungs- und Auswahlschalter sind dabei mit Leistungstransistoren mit In- versdioden gebildet, wobei die Drainanschlüsse der Auswahlschalter über Zenerdioden mit den Gateanschlüssen der Auswahlschalter verbunden sind. The object is achieved by a circuit arrangement according to claim 1. Advantageous developments are specified in the dependent claims. Accordingly, in the circuit arrangement according to the invention, a controllable direction switch is assigned to each load for each operating direction, each direction switch having a first connection having a first supply potential and a second connection each having a forward-biased diode connected to a connection of the loads associated therewith. In addition, each load is associated with a controllable selector switch for each operating direction, each selector switch having a first terminal connected to a terminal of the load associated with it and a second terminal connected to a second supply potential. The direction and selection switches are formed with power transistors with inversion diodes, wherein the drain terminals of the selection switches are connected via Zener diodes to the gate terminals of the selection switch.
Bei der erfindungsgemäßen Schaltungsanordnung sind also nur zwei Richtungsschalter für eine beliebige Anzahl reaktiver Lasten vorgesehen, wobei durch die Betätigung eines der Richtungsschalter die Betriebsrichtung ausgewählt wird. Die Auswahl der zu betätigenden Last erfolgt entsprechend durch den dieser zugeordneten und am anderen Anschluss der Last, an dem der ausgewählte Richtungsschalter nicht verbunden ist, angeordneten Auswahlschalter. Die die Richtungsschalter mit den Lasten verbindenden Dioden sorgen dafür, dass die einzelnen Lasten voneinander entkoppelt sind. Da beim Betrieb induktiver Lasten Freilaufpfade für den Abbau der in den Lasten gespeicherten magnetischen Energie vorgesehen werden müssen, werden einerseits Leistungsschalter mit implementierten Inversdioden verwendet und andererseits die Drainschlüsse der Auswahlschalter über Zenerdioden geeigneter Dimensionierung mit den Gateanschlüssen verbunden, sodass beim Deaktivieren der Auswahlschalter diese solange im leitfähigen Zustand gehalten werden, wie die in der entsprechenden Last vorhandene Restmagnetenergie einen In the circuit arrangement according to the invention, therefore, only two directional switches are provided for any desired number of reactive loads, the operating direction being selected by the actuation of one of the directional switches. The selection of the load to be actuated is carried out in accordance with the associated therewith and at the other terminal of the load to which the selected direction switch is not connected, arranged selector switch. The diodes connecting the direction switches with the loads ensure that the individual loads are decoupled from each other. Since the operation of inductive loads freewheeling paths must be provided for the reduction of the magnetic energy stored in the loads, on the one hand power switches are used with implemented inverse diodes and on the other hand the drain terminals of the selector switches are connected to the gate terminals via zener diodes of suitable dimensions, so that when the selector switches are deactivated, they are kept in the conductive state as long as the residual magnetic energy present in the corresponding load
Stromfluss erzwingt. Current flow forces.
In vorteilhafter Weiterbildung der Erfindung ist das erste Versorgungspotential das positive Potential der Versorgungs- guelle und das zweite Versorgungspotential das negative Potential der Versorgungsguelle . Hierdurch sind die Auswahlschalter als Low-Side-Schalter ausgebildet, die kostengünstiger realisiert werden können als High-Side-Schalter . Da pro Last zwei Auswahl- und damit Low-Side-Schalter verwendet werden, ist diese Anordnung von besonderem Vorteil. In an advantageous development of the invention, the first supply potential is the positive potential of the supply circuit and the second supply potential is the negative potential of the supply source. As a result, the selection switches are designed as low-side switches that can be realized more cost-effectively than high-side switches. Since two selection and thus low-side switches are used per load, this arrangement is of particular advantage.
Die erfindungsgemäße Schaltungsanordnung lässt sich in besonders vorteilhafter Weise bei induktiven Lasten verwenden. Die Erfindung soll nachfolgend anhand eines Ausführungsbeispiels mit Hilfe einer Figur näher erläutert werden. Dabei zeigt The circuit arrangement according to the invention can be used with inductive loads in a particularly advantageous manner. The invention will be explained in more detail using an exemplary embodiment with the aid of a figure. It shows
Figur 1 eine erfindungsgemäße Schaltungsanordnung mit vier induktiven Lasten und als High-Side-Schalter betriebene Richtungs Schalter und Figure 1 shows a circuit arrangement according to the invention with four inductive loads and operated as a high-side switch direction switch and
Figur 2 eine erfindungsgemäße Schaltungsanordnung mit vier induktiven Lasten und als Low-Side-Schalter betriebene Richtungs Schalter . Die Schaltungsanordnung gemäß Figur 1 zeigt ein Ausführungsbeispiel mit vier induktiven Lasten Li - L4, die aus einer Ver sorgungsguelle mit einem positiven Versorgungspotential V0 und einem negativen Versorgungspotential GND betrieben werden sollen. Hierzu sind erste Anschlüsse der Lasten Li - L4 jeweils über eine Diode Dl - D4, die in Sperrrichtung betrieben ist, und einen ersten Richtungsschalter Tl, der als Leitungstransistor mit Inversdiode ausgebildet ist, mit dem positiven Versorgungspotential V0 der Versorgungsguelle verbunden. Die jeweils zweiten Anschlüsse der Lasten Li - L4 sind in entsprechender Weise jeweils über Dioden D5 - D8, die ebenfalls in Sperrrichtung betrieben werden und einen zweiten Richtungsschalter T6, der ebenfalls als Leistungstransistor mit Inversdiode ausgebildet ist, mit dem positiven Versorgungspotenzial V0 der Versorgungsquelle verbunden. Hierdurch ist zum Laden der Lasten Li - L4 ein Stromfluss aus der Versorgungsquelle zur jeweiligen Last Li - L4 möglich. Die Richtungsschalter Tl, T6 sind als N-Kanal-MOS-Transistoren dargestellt, es können jedoch auch P-Kanal-MOS-Transistoren verwendet werden. Bei der Verwendung von kostengünstiger herzustellender N-Kanal-MOS-Transistoren muss jedoch eine über dem positiven Potential V0 der Versorgungsspannung liegende Spannung zur Ansteuerung der Gate-Anschlüsse bereitgestellt werden, damit die N-Kanal-MOS-Transistoren sicher durchschalten . Figure 2 shows a circuit arrangement according to the invention with four inductive loads and operated as a low-side switch direction switch. The circuit of Figure 1 shows an embodiment with four inductive loads Li - L4, which should be operated from a Ver sorgungsguelle with a positive supply potential V 0 and a negative supply potential GND. For this purpose, first terminals of the loads Li-L4 are each connected via a diode Dl-D4, which is operated in the reverse direction, and a first direction switch Tl, which is designed as a line transistor with inverse diode, to the positive supply potential V 0 of the supply source. The respectively second terminals of the loads Li - L4 are respectively connected via diodes D5 - D8, which are also operated in the reverse direction and a second direction switch T6, which is also designed as a power transistor with inverse diode, connected to the positive supply potential V 0 of the supply source. As a result, a current flow from the supply source to the respective load Li - L4 is possible for charging the loads Li - L4. The direction switches Tl, T6 are shown as N-channel MOS transistors, however, P-channel MOS transistors may also be used. However, when using low-cost N-channel MOS transistors, a voltage higher than the positive potential V 0 of the supply voltage must be provided for driving the gate terminals for the N-channel MOS transistors to turn on safely.
Jeder erste Anschluss und jeder zweite Anschluss der Lasten Li - L4 sind außerdem jeweils über je einen Auswahlschalter T2 - T5 und T7 - T10 mit dem negativen Potential GND der Versorgungsquelle verbunden. Die Auswahlschalter T2 - T5 und T7 - T10 sind ebenfalls als Leistungstransistoren mit Inversdioden ausgebildet. Die Drainanschlüsse dieser Auswahlschalter T2 - T5 und T7 - T10 sind über die Serienschaltung eines Strombegrenzungswiderstands Rl - R8 und einer Zenerdiode ZDl - ZD8 mit den jeweiligen Each first terminal and each second terminal of the loads Li - L4 are also each connected via a selection switch T2 - T5 and T7 - T10 to the negative potential GND of the supply source. The selection switches T2 - T5 and T7 - T10 are also designed as power transistors with inverse diodes. The drain terminals of these selector switches T2 - T5 and T7 - T10 are connected in series with a current limiting resistor Rl - R8 and a Zener diode ZD1 - ZD8
Gateanschlüssen der Auswahlschalter T2 - T5 und T7 - T10 verbunden . Wird beispielsweise die erste Last Li in einer ersten Betriebsrichtung betrieben, so wird der erste Richtungsschalter Tl und der erforderliche Auswahlschalter T2 eingeschaltet. Wird zum Abschalten der ersten Last Li der erste Richtungsschalter Tl abgeschaltet, so kann sich das in der ersten Last Li aufgebaute magnetische Feld durch einen Strom über die Inversdiode des mit dem ersten Anschluss der Last Li verbundenen Auswahlschalters T7 und den mit dem zweiten Anschluss verbundenen, noch einge- schalteten Auswahlschalter T2 durch einen entsprechenden Stromfluss abbauen. Gate terminals of the selection switches T2 - T5 and T7 - T10 connected. For example, when the first load Li is operated in a first operating direction, the first direction switch Tl and the required selection switch T2 are turned on. If the first direction switch T 1 is switched off to switch off the first load Li, then the magnetic field built up in the first load Li can be connected by a current via the inverse diode of the selection switch T 7 connected to the first terminal of the load Li and connected to the second terminal, still included Switch off selected selector T2 by a corresponding current flow.
Wird hingegen zum Abschalten der ersten Last Li nur der Aus- wahlschalter T2 deaktiviert, so erzwingt die Klemmung desIf, on the other hand, only the selection switch T2 is deactivated to switch off the first load Li, the clamping of the
Gateanschlusses des Auswahlschalters T2 über die Zenerdiode Z3 mit dem Drainanschluss des Auswahlschalters T2 einen Stromfluss durch diesen Auswahlschalter T2, bis aufgrund des Abbaus des magnetischen Feldes in der ersten Last Li die Spannung am Drainanschluss des Auswahlschalters T2 unter die ZenerSpannung der Zenerdiode ZDl absinkt. Gate terminal of the selection switch T2 via the Zener diode Z3 to the drain terminal of the selection switch T2 a current flow through this selection switch T2 until due to the degradation of the magnetic field in the first load Li, the voltage at the drain terminal of the selection switch T2 drops below the Zener voltage of the Zener diode ZDl.
In entsprechender Weise sind Freilaufpfade für die weiteren Lasten L2 - L4 realisiert. In a corresponding way freewheeling paths for the other loads L2 - L4 are realized.
In Figur 2 ist eine Realisierung der Schaltungsanordnung mit als Low-Side-Schalter realisierten Richtungsschaltern Tly, T6 ' dargestellt. Um zum Laden der Lasten Li - L4 eine Stromfluss aus der Versorgungsguelle zu ermöglichen und die einzelnen Ladepfade trotzdem zu entkoppeln, sind Dioden Dl' - D8 ' jeweils zwischen den Lasten Li - L4 und den Richtungsschaltern Tly, T6 ' in Durchlassrichtung gepolt angeordnet. Die als High-Side-Schalter angeordneten Auswahlschalter Τ2'- T5 ' und T ' - T10' sind in diesem Ausführungsbeispiel als P-Kanal-MOS-Transistoren mit Inversdioden ausgebildet. Ansonsten sind gleiche Bauteile mit gleichen Bezugszeichen versehen wie in Figur 1 und lediglich um ein „'" ergänzt. 2 shows a realization of the circuit arrangement is realized as a low-side switch switches Tl y direction, T6 'is shown. In order to load the loads Li - '- D8' L4 to allow current flow from the Versorgungsguelle and decouple the individual loading paths nevertheless, diodes D are connected between the loads Li - arranged L4 and direction switches Tl y, T6 poled 'in the forward direction. The selection switches Τ2'-T5 'and T'-T10' arranged as high-side switches are designed as P-channel MOS transistors with inverse diodes in this exemplary embodiment. Otherwise, the same components are provided with the same reference numerals as in Figure 1 and only a "'" complements.

Claims

Patentansprüche claims
1. Schaltungsanordnung zum Ansteuern wenigstens zweier bidirektional aus einer Versorgungsguelle (V0, GND) zu betreibender reaktiver Lasten (Li, L2, L3, L4), 1. Circuit arrangement for driving at least two bidirectionally from a supply source (V 0 , GND) to be operated reactive loads (Li, L2, L3, L4),
bei der allen Lasten (Li, L2, L3, L4) für jede Betriebsrichtung ein steuerbarer Richtungsschalter (Tl, T6) zugeordnet ist, wobei jeder Richtungsschalter (Tl, T6) mit einem ersten Anschluss mit einem ersten Versorgungspotential (V0; GND) und mit einem zweiten Anschluss über je eine Diode (Dl - D8) mit einem ihm zugeordneten Anschluss der Lasten (Li, L2, L3, L4) verbunden ist, wobei die Dioden (Dl - D8) derart gepolt sind, dass zum Laden der Lasten (Li, L2, L3, L4) aus der Versorgungsguelle (V0, GND) ein Stromfluss möglich ist, in which all loads (Li, L2, L3, L4) are assigned a controllable direction switch (T1, T6) for each operating direction, each direction switch (T1, T6) having a first connection with a first supply potential (Vo , GND) and is connected to a second terminal via a respective diode (Dl - D8) with its associated terminal of the loads (Li, L2, L3, L4), wherein the diodes (Dl - D8) are poled such that for charging the loads ( Li, L2, L3, L4) from the supply source (V 0 , GND) a current flow is possible,
bei der jeder Last (Li, L2, L3, L4) für jede Betriebsrichtung je ein steuerbarer Auswahlschalter (T2 -T5, T7 - TlO) zugeordnet ist, wobei jeder Auswahlschalter (T2 -T5, T7 - TlO) mit einem ersten Anschluss mit einem ihm zugeordneten Anschluss der Last (Li, L2, L3, L4) und mit einem zweiten Anschluss mit einem zweiten Versorgungspotential (GND; V0) verbunden ist, in which each load (Li, L2, L3, L4) is assigned a controllable selection switch (T2-T5, T7-T10) for each operating direction, each selection switch (T2-T5, T7-T10) having a first connection with a first connection associated with it connection of the load (Li, L2, L3, L4) and with a second connection to a second supply potential (GND; V 0 ) is connected,
wobei die Richtungs- (Tl, T6) und Auswahlschalter (T2 -T5, T7 - TlO) mit Leistungstransitoren mit Inversdioden gebildet sind und wobei die Drainanschlüsse der Auswahlschalter (T2 -T5, T7 - TlO) über Zenerdioden (ZD2 - ZD5, ZD7 - ZD10) mit den Gateanschlüssen der Auswahlschalter (T2 -T5, T7 - TlO) verbunden sind. wherein the directional (T1, T6) and selection switches (T2-T5, T7-T10) are formed with power transistors with inverse diodes and wherein the drain terminals of the selection switches (T2-T5, T7-T10) are connected via zener diodes (ZD2-ZD5, ZD7- ZD10) are connected to the gate terminals of the selector switches (T2-T5, T7-T10).
2. Schaltungsanordnung nach Anspruch 1, dadurch gekennzeichnet, dass das erste Versorgungspotential das positive Potential (V0) der Versorgungsguelle und das zweite Versorgungspotential das negative Potential (GND) der Versorgungsguelle ist und dass die Dioden (Dl - D8) vom jeweiligen Richtungsschalter (Tl, T6) zur jeweiligen Last (Li, L2, L3, L4) in Durchlassrichtung gepolt sind . 2. A circuit arrangement according to claim 1, characterized in that the first supply potential, the positive potential (V 0 ) of the supply source and the second supply potential, the negative potential (GND) of the supply source and that the diodes (Dl - D8) from the respective direction switch (Tl , T6) are poled to the respective load (Li, L2, L3, L4) in the forward direction.
3. Schaltungsanordnung nach Anspruch 1, dadurch gekennzeichnet, dass das erste Versorgungspotential das negative Potential (GND) der Versorgungsguelle und das zweite Versorgungspotential das positive Potential (V0) der Versorgungsguelle ist und dass die Dioden (Dl - D8) vom jeweiligen Richtungsschalter (Tl, T6) zur jeweiligen Last (Li, L2, L3, L4) in Sperrrichtung gepolt sind. 3. A circuit arrangement as claimed in claim 1, characterized in that the first supply potential is the negative potential (GND) of the supply source and the second supply potential is the positive potential (V 0 ) of the supply source and that the Diodes (Dl - D8) from the respective direction switch (Tl, T6) to the respective load (Li, L2, L3, L4) are poled in the reverse direction.
4. Schaltungsanordnung nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass eine Last (Li, L2, L3, L4) eine Induktivität ist . 4. Circuit arrangement according to claim 1 to 3, characterized in that a load (Li, L2, L3, L4) is an inductance.
5. Schaltungsanordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jede Zenerdiode (ZDl - ZD8) in Serie mit einem Widerstand (Rl bis R8 ) zwischen dem Drain- und dem Gateanschluss eines Auswahlschalters (T2 - T5, T7 - T10) angeordnet ist. 5. Circuit arrangement according to one of the preceding claims, characterized in that each Zener diode (ZDL - ZD8) in series with a resistor (Rl to R8) between the drain and the gate terminal of a selection switch (T2 - T5, T7 - T10) is arranged ,
PCT/EP2012/073870 2011-11-30 2012-11-28 Circuit assembly for controlling at least two loads from a supply source WO2013079551A2 (en)

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Publication number Priority date Publication date Assignee Title
DE19950144A1 (en) 1998-11-18 2000-05-25 Denso Corp Motor drive controller for choke flap drive motor for internal combustion engine controls motor current to first level during motor starting period and to second, lower level thereafter

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DE10015647A1 (en) * 2000-03-29 2001-10-04 Bosch Gmbh Robert Method for driving electromagnetic load, especially solenoid valve in combustion engine, requires detecting and evaluating the charge state of the electric charge storage element i.e. battery
DE10058959B4 (en) * 2000-11-28 2007-07-12 Mtu Friedrichshafen Gmbh Method for monitoring a control circuit
ITTO20030452A1 (en) * 2003-06-17 2004-12-18 Fiat Ricerche CONTROL CIRCUIT FOR HIGH EFFICIENCY PILOTING
DE102008007211B4 (en) * 2008-02-01 2017-10-26 Continental Automotive Gmbh Circuit arrangement for driving an inductive load and use of such a circuit arrangement
DE102009027340A1 (en) * 2009-06-30 2011-01-05 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Control circuit for several inductive loads

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19950144A1 (en) 1998-11-18 2000-05-25 Denso Corp Motor drive controller for choke flap drive motor for internal combustion engine controls motor current to first level during motor starting period and to second, lower level thereafter

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