WO2001036230A2 - Circuit pour alimenter une charge electrique en puissance electrique - Google Patents

Circuit pour alimenter une charge electrique en puissance electrique Download PDF

Info

Publication number
WO2001036230A2
WO2001036230A2 PCT/DE2000/004049 DE0004049W WO0136230A2 WO 2001036230 A2 WO2001036230 A2 WO 2001036230A2 DE 0004049 W DE0004049 W DE 0004049W WO 0136230 A2 WO0136230 A2 WO 0136230A2
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
control
power
module
signals
Prior art date
Application number
PCT/DE2000/004049
Other languages
German (de)
English (en)
Other versions
WO2001036230A3 (fr
Inventor
Reiner Höger
Thomas Klug
Thomas Pfaffelhuber
Max-Gerhard Seitz
Original Assignee
Infineon Technologies Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Infineon Technologies Ag filed Critical Infineon Technologies Ag
Publication of WO2001036230A2 publication Critical patent/WO2001036230A2/fr
Publication of WO2001036230A3 publication Critical patent/WO2001036230A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements

Definitions

  • Circuit arrangement for supplying an electrical load with electrical power
  • the invention relates to a circuit arrangement for supplying an electrical load with electrical power according to the preamble of patent claims 1 and 4.
  • a printed circuit board includes, for example, semiconductor components (chips), passive components (capacitors, resistors, coils, transformers), the entire wiring of the components and connections for lines for supplying the module with electrical power, for exchanging control signals with other printed circuit boards and for controlling and driving electrical loads such as motors or lamps.
  • semiconductor components chips
  • passive components capacitors, resistors, coils, transformers
  • the entire wiring of the components and connections for lines for supplying the module with electrical power, for exchanging control signals with other printed circuit boards and for controlling and driving electrical loads such as motors or lamps.
  • With complex circuits less than a third of the area of a flat module is often covered by semiconductor components, passive components and connections. The remaining area of the printed circuit board is required for the wiring of the chips and passive components.
  • the SPI Serial Peripheral Interface
  • the SPI has four lines for the clock, serial input and output data and chip select and therefore requires at least one four-wire bus for wiring.
  • the CAN Controller Area Network
  • the CAN bus has twisted two-wire lines over which differential signals are transmitted.
  • a circuit arrangement for supplying an electrical load with electrical power has in particular a power circuit and a control circuit.
  • the power circuit supplies the electrical load with electrical power (current, voltage).
  • the power circuit can be, for example, a power transistor, a power converter, a tyristor or a triac for controlling, for example, a DC motor or spark plugs.
  • the power circuit is controlled by the control circuit, which can be designed as a digital and / or analog circuit.
  • control circuit can have a microcontroller (microprocessor with memory and peripherals).
  • a motor control program can be stored in a memory and is processed by a microprocessor as part of the control circuit.
  • Driver circuits then become digital control signals as part of the control circuit for driving, for example, thyristors, which are included in the power circuit.
  • the thyristors in turn control spark plugs of an engine.
  • a large number of control signals are required, which are transmitted via a
  • a large number of lines and / or a bus system (for example a CAN bus) must be routed to the control circuit.
  • the object of the present invention is therefore to provide a circuit arrangement for supplying an electrical load with electrical power, in particular for use in an automobile, which requires little wiring and less space (in particular as a flat module).
  • a central supply and control status line is provided in a first embodiment of the invention, which conducts electrical power together with control and status signals.
  • the control and status signals can, for example, be modulated onto the power. Modulation methods known from communications technology, such as amplitude modulation, can be used for this purpose.
  • a separating device is provided which is coupled to the central supply and control / status line (for example via plugs or inductively) and which separates the control and status signals and the electrical power and vice versa status signals to the supply and control / status line coupled.
  • the separator supplies the electrical power to the power circuit; the control signals are a coupling circuit just in case supplied that a potential separation of the control signals is required.
  • the control signals can also be fed directly to the control circuit if no potential isolation is required.
  • the status signals are routed from the control circuit to the isolating device and transmitted from there via the supply and control line.
  • the coupling circuit is used for the potential-free transmission of the control signals to the control circuit and the status signals to the isolating device. Damage to the control circuit due to high voltage peaks coupled to the control signals is avoided, for example.
  • the isolating device can also be designed such that, for example, the performance is freed from disturbances such as voltage peaks by smoothing and several supply voltages are generated by voltage regulators.
  • Status signals from the power circuit and / or load and / or control circuit are preferably also transmitted via the supply and control / status line.
  • measuring devices attached to the load or transducers e.g. B. sensors
  • signals about the state of the load can be obtained and transmitted to the isolating device via the control circuit.
  • status signals from the power circuit for example overload signals from the power circuit, can also be transmitted to the control circuit.
  • the transmission of status signals from the control circuit is also possible if, for example, a problem arises when a program is being processed by a microprocessor in the control circuit.
  • the separator then modulates these status signals onto the power and transmits them via the supply and Control / Statusle ⁇ tung.
  • the status signals are used to report the status of the electrical load and / or the power circuit and / or control circuit, for example to a central computer or on-board computer.
  • the central computer can thus signal failures and malfunctions.
  • a receiver circuit connected to the control circuit on the output side is provided for receiving radio signals.
  • the radio signals have control signals for the control circuit which are received and demodulated in the receiver circuit and transmitted to the control circuit.
  • status signals are also transmitted from the control circuit to a transmitter circuit and modulated by the latter and sent to a further central transmitter circuit for evaluation.
  • the transmitter circuit is preferably combined with the receiver circuit to form a transmitter / receiver circuit (English transceiver).
  • a supply line is also provided, via which electrical power is supplied to the power circuit.
  • the supply line can either be connected directly to the power circuit or inductively coupled to it.
  • control and possibly status signals are transmitted by radio; a routing of the control and status signals via, for example, a control bus or control lines is thus eliminated.
  • the transmitter and receiver circuit can in particular be similar to transmitter / receiver devices known from mobile radio technology. Circuits be executed. An example here is only the transmitter / receiver circuits of cordless telephones which are based either on an analog radio signal transmission (CTI standard) or on a digital radio signal transmission (DECT standard). Such from the
  • the power circuit, the control circuit, optionally the coupling circuit and the isolating device are preferably combined into one module.
  • the module can be a multichip module or smgle chip module, in which the circuits mentioned and the isolating device are combined in a fail-safe and space-saving manner.
  • the module can also be cast with epoxy resin. Such a module is then also mechanically very resilient.
  • the central supply and control line as well as the electrical load can be connected directly to the module.
  • a connector is provided for connecting the line or the load, or the module is arranged on a small circuit board with connectors.
  • the power can also be coupled inductively to the module, for example via a transformer.
  • the transmitter and receiver circuit is preferably combined with the power circuit and the control circuit to form a module.
  • the module can be a multichip module or single chip model with the advantages described above.
  • the supply line and the electrical load can then either be connected directly to such a module, or the module is mounted together with plugs on a circuit board.
  • the (bidirectional) coupling circuit for coupling the control signals into the control circuit and for coupling the status signals into the separating device has a (bidirectional) optocoupler which reliably controls the control signals on the
  • Receiving side from the control signals coupled into the control circuit or the status signals on the control circuit side and the isolating device side is galvanically isolated.
  • Opto-couplers are cheap mass products and are available as monolithically integrated circuits, especially in SMT (Surface Mounted Technology) versions.
  • opto-couplers in SMT versions are particularly small and are therefore suitable for building very small, space-saving modules.
  • the coupling circuit has at least one transmitter circuit via which control signals are magnetically coupled into the control circuit.
  • the opto-couplers there is advantageously a galvanic separation of the control signals from the signals of the supply and control line.
  • the power and control circuits are preferably integrated monolithically.
  • the embodiment of the invention is preferably that Receiver and possibly transmitter circuit monolithic with integrated.
  • FIG. 1 shows a block diagram of an exemplary embodiment of the circuit arrangement with a separating device
  • Figure 2 is a block diagram of an exemplary embodiment of the circuit arrangement with a transmitter / receiver circuit.
  • a direct current motor 10 for example a servomotor for headlight range control in the motor vehicle, is controlled by a module 11 (shown by dashed lines) via a first supply line 27.
  • the module 11 is in turn connected to a (central) supply and control / status line 12, which in particular carries a direct current from a car battery.
  • Control signals for controlling the module 11 and status signals from the module 11 are modulated onto the electrical power.
  • digital control and status signals can simply be modulated onto a DC voltage that is used to supply electrical loads such as the DC motor 10.
  • the status signals indicate the status of the engine 10 or, more generally, of the module 11.
  • the control / status signals and the power are then separated or combined in the module 11 by means of a separating device 13.
  • the electrical power is supplied from a separating device 13 to a power circuit 16 via a second supply line 14.
  • the power circuit 16 controls the DC motor 10 via the first supply line 27.
  • the control signals are fed via a first control / status line 150 from the separating device 13 to a (bidirectional) coupling circuit 18 which has opto-couplers for the potential separation of the control and status signals.
  • a (bidirectional) coupling circuit 18 which has opto-couplers for the potential separation of the control and status signals.
  • the coupling circuit 18 is connected to the control circuit 17 via a second control / status line 151.
  • a third control / status line 152 for the direct connection of the isolating device 13 to the control circuit 17 (dashed) is shown. This line is used when no electrical isolation is required.
  • the control circuit 17 processes the control signals for controlling the power circuit 16 and transmits the processed control signals to the power circuit 16 via a control line 29.
  • the control circuit 17 can be a logic circuit with a microprocessor and a program memory, for example a program for Illuminated world regulation is filed.
  • the power circuit 16 in turn can in particular have a power operation amplifier or power transistors for driving the DC motor 10.
  • the separating device 13, the power circuit 16, the control circuit 17 and the coupling circuit 18 are supplied by the one via the supply and control / status line 12 Power supplied. The internal consumption of the aforementioned circuits is low.
  • the status of the direct current motor 10 is sent to the status signal via a first status line 26
  • Power circuit 16 transmitted.
  • the power circuit 16 then transmits the status signals via a second status line 28 to the control circuit 17, which in turn transmits them to the separating device 13 via the third control / status line 152 or the second and first control / status line 151 or 150 and the coupling circuit 18 ,
  • the separating device 13 transmits the status information contained in these status signals via the supply and control / status line 12 likewise by modulation.
  • a central computer (not shown) can then
  • FIG. 2 shows a block diagram of a second embodiment of the invention.
  • a DC motor 10 is also driven by a module 24. Electrical power (current, voltage) for driving the DC motor 10 is supplied to the module 24 via a third supply line 21.
  • the DC motor 10 is fed by a power circuit 16 via a first supply line 27.
  • the module 24 has the power circuit 16 and one
  • Control circuit 17 on.
  • the control circuit 17 controls the power circuit 16 by means of control signals via a control line 29, wherein it receives the control signals from a first transmitter / receiver circuit 20 via a fourth control and status line 19. Furthermore receives the
  • the first transmitter / receiver circuit 20 is provided for transmitting and receiving radio signals 23 which are emitted by a central second transmitter / receiver circuit 22.
  • the radio signals 23 have control and status signals which are processed by the control circuit 17 to control the power circuit 16 and which are used to display the status of the DC motor 10 and the module 24.
  • the central second transmitter / receiver circuit 22 can control a plurality of transmitter / receiver circuits of different modules for headlight range control, air conditioning, windshield wipers, etc.
  • the second transmitter / receiver circuit 22 can send out control signals for different modules, for example, in m successive time slots.
  • the second transmitter / receiver circuit 22 can transmit control signals for different modules on different frequencies in each case. It goes without saying that the first transmitter / receiver circuit 20 is then provided only for the reception of a specific frequency.
  • the central second transmitter / receiver circuit 22 is connected via a central bus 25 to a central computer (not shown), via which the module 24 is controlled and which signals the state (status) of the module 24.
  • the second transmitter / receiver circuit 22 can in particular be installed in the control console of a vehicle together with operating elements.
  • the operating elements can be provided for controlling the lighting world control, for actuating the electric window regulators, for controlling the windshield wipers, for controlling an air conditioning system which may be present or for controlling a car radio.
  • the second transmitter / receiver circuit has a microcontroller and a program memory in which all control programs for controlling, in particular, the aforementioned devices are stored.
  • the second transmitter / receiver circuit 22 transmits control signals to a plurality of modules, which controls the above-mentioned devices, via a frequency m of a plurality of time slots, similar to a TDMA (Time Division Multiple Access) transmission system. Each time slot is assigned to a specific module, ie each module receives m exactly one of the time slots
  • Control signals for evaluation For this purpose, a coding sequence that is assigned to a module is transmitted in each time slot before the control signals.
  • the first transmitter / receiver circuit 20 thus constantly receives radio signals 23 via the frequency, which are emitted by the second transmitter / receiver circuit 22. If the first transmitter / receiver circuit 20 detects the coding sequence intended for the module 24 in a time slot, the control signals following the coding sequence in the time slot are evaluated by the first transmitter / receiver circuit 20 as control signals for the module 24 and sent to the control circuit 17 for processing transfer.
  • control circuit 17 namely sends status signals via the fourth control and status line 19 to the first transmitter / receiver circuit 20, which transmits them to the second transmitter / receiver circuit 22 by radio signal 23; the second transmitter /
  • Receiver circuit 22 in turn transmits the status signals via the central bus 25 to the central computer (not shown), which then causes the DC motor 10 and / or the power circuit 16 and / or the module 24 to fail via an LCD display or through audio signals, Can signal warning tones or voice messages.
  • the central computer not shown
  • the DC motor 10 and / or the power circuit 16 and / or the module 24 to fail via an LCD display or through audio signals, Can signal warning tones or voice messages.
  • the proposed circuit arrangements can thus considerably reduce the amount of wiring, in particular in an automobile. It should be pointed out that the circuit arrangements according to the invention can be used advantageously not only in an automobile, but also in all other fields of application in which the wiring effort is to be reduced. In this respect, the circuit arrangements specified in the patent claims and all the parts described above are seen on their own and in any combination, in particular the details shown in the drawings, are claimed as essential to the invention. Modifications to this are familiar to the person skilled in the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Selective Calling Equipment (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

L'invention concerne un circuit servant à alimenter une charge électrique (10) en puissance électrique. Le circuit selon l'invention comprend un circuit de puissance (16) qui fournit la puissance électrique à la charge (10), ainsi qu'un circuit de commande (17) qui commande le circuit de puissance (16). Selon l'invention, une ligne d'alimentation et de commande centrale (12) conduit la puissance électrique conjointement avec des signaux de commande et d'état.
PCT/DE2000/004049 1999-11-17 2000-11-15 Circuit pour alimenter une charge electrique en puissance electrique WO2001036230A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19955328.9 1999-11-17
DE1999155328 DE19955328C2 (de) 1999-11-17 1999-11-17 Schaltungsanordnung zur Versorgung einer elektrischen Last mit elektrischer Leistung

Publications (2)

Publication Number Publication Date
WO2001036230A2 true WO2001036230A2 (fr) 2001-05-25
WO2001036230A3 WO2001036230A3 (fr) 2002-04-11

Family

ID=7929373

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/004049 WO2001036230A2 (fr) 1999-11-17 2000-11-15 Circuit pour alimenter une charge electrique en puissance electrique

Country Status (2)

Country Link
DE (1) DE19955328C2 (fr)
WO (1) WO2001036230A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004114513A1 (fr) * 2003-06-26 2004-12-29 Kongsberg Automotive Ab Procede et dispositif de commande d'un moteur a courant continu
WO2007006705A1 (fr) * 2005-07-14 2007-01-18 Siemens Aktiengesellschaft Circuit de commande pour modules a semi-conducteurs de puissance
WO2010010251A2 (fr) * 2008-07-23 2010-01-28 Sagem Defense Securite Ensemble d'actionneurs et d'un systeme d'alimentation electrique a partir d'un reseau
EP3307023A1 (fr) * 2016-10-10 2018-04-11 Tridonic GmbH & Co. KG Appareil de fonctionnement pour lampe pourvu de sortie des informations d'état, en particulier d'analyse des erreurs

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10211677B4 (de) * 2002-03-15 2007-08-09 Mergeoptics Gmbh Anordnung zum Senden oder Empfangen von optischen Signalen
DE10227310A1 (de) * 2002-06-19 2004-01-15 Siemens Ag Halbleiter-Schaltvorrichtung
DE102005047971B4 (de) * 2005-10-06 2008-01-17 Dr.-Ing. Gschwind Elektronik Gmbh Belastungsmessvorrichtung
DE202016102484U1 (de) 2015-08-31 2016-06-15 HARTING Electronics GmbH Trenneinrichtung
DE102019210315A1 (de) 2019-07-12 2021-01-14 Audi Ag Sichtbauteil mit funktionaler Beschichtung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111223A1 (de) * 1991-04-08 1992-10-22 T E L L Steuerungssysteme Terb Anordnung fuer den informationsaustausch zwischen zugmaschine und angehaengten fahrzeugen
DE4231968A1 (de) * 1992-09-24 1994-03-31 Bosch Gmbh Robert Getaktete Stromversorgungsschaltung
DE4240403C1 (de) * 1992-12-02 1994-03-31 Vdo Schindling Ansteuerung von Stellgliedern in Kraftfahrzeugtüren
DE4434185A1 (de) * 1994-09-24 1996-03-28 Philips Patentverwaltung Schaltungsanordnung zum Speisen wenigstens einer Last
DE19515353C2 (de) * 1995-04-26 1999-12-16 Eberspaecher J Gmbh & Co Anordnung eines Fahrzeugzusatzheizgerätes mit Steuereinrichtung und Bedienteil in einem Fahrzeuginnenraum
DE19546359A1 (de) * 1995-12-12 1997-06-19 Siemens Ag System mit zwei voneinander räumlich getrennten elektrischen Schaltungsanordnungen, und mit einer Leitung zwischen den Schaltungsanordnungen
GB2314432A (en) * 1996-06-18 1997-12-24 Motorola Inc Data bus system, master module and slave module
CN1268926A (zh) * 1996-11-15 2000-10-04 保罗A·罗森 配电控制系统
DE19734749C2 (de) * 1997-08-12 2002-04-04 Reitter & Schefenacker Gmbh Vorrichtung zur Versorgung einer elektrischen Einrichtung in Kraftfahrzeugen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004114513A1 (fr) * 2003-06-26 2004-12-29 Kongsberg Automotive Ab Procede et dispositif de commande d'un moteur a courant continu
CN100438312C (zh) * 2003-06-26 2008-11-26 孔斯贝格汽车公司 用于控制直流电机的方法和装置
US7567045B2 (en) 2003-06-26 2009-07-28 Kongsberg Automotive Ab Method and arrangement for control of direct current motor
WO2007006705A1 (fr) * 2005-07-14 2007-01-18 Siemens Aktiengesellschaft Circuit de commande pour modules a semi-conducteurs de puissance
WO2010010251A2 (fr) * 2008-07-23 2010-01-28 Sagem Defense Securite Ensemble d'actionneurs et d'un systeme d'alimentation electrique a partir d'un reseau
FR2934430A1 (fr) * 2008-07-23 2010-01-29 Sagem Defense Securite Ensemble d'actionneurs et d'un systeme d'alimentation electrique a partir d'un reseau
WO2010010251A3 (fr) * 2008-07-23 2010-03-18 Sagem Defense Securite Ensemble d'actionneurs et d'un systeme d'alimentation electrique a partir d'un reseau
CN102105356A (zh) * 2008-07-23 2011-06-22 萨甘安全防护公司 执行器和用于从电网供电的系统的组件
US8907521B2 (en) 2008-07-23 2014-12-09 Sagem Defense Securite Assembly of actuators and of a system for supplying electrical power from a network
EP3307023A1 (fr) * 2016-10-10 2018-04-11 Tridonic GmbH & Co. KG Appareil de fonctionnement pour lampe pourvu de sortie des informations d'état, en particulier d'analyse des erreurs
AT16737U1 (de) * 2016-10-10 2020-07-15 Tridonic Gmbh & Co Kg Betriebsgerät für Leuchtmittel mit Ausgabe von Statusinformationen insbesondere zur Fehleranalyse
EP3307023B1 (fr) * 2016-10-10 2023-08-16 Tridonic GmbH & Co. KG Appareil de fonctionnement pour lampe pourvu de sortie des informations d'état, en particulier d'analyse des erreurs

Also Published As

Publication number Publication date
DE19955328C2 (de) 2002-03-14
WO2001036230A3 (fr) 2002-04-11
DE19955328A1 (de) 2001-07-26

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