DE19517861C1 - Mains powered electrical device - Google Patents

Mains powered electrical device

Info

Publication number
DE19517861C1
DE19517861C1 DE1995117861 DE19517861A DE19517861C1 DE 19517861 C1 DE19517861 C1 DE 19517861C1 DE 1995117861 DE1995117861 DE 1995117861 DE 19517861 A DE19517861 A DE 19517861A DE 19517861 C1 DE19517861 C1 DE 19517861C1
Authority
DE
Germany
Prior art keywords
consumers
microprocessor control
mains
capacitor
switching element
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.)
Expired - Fee Related
Application number
DE1995117861
Other languages
German (de)
Inventor
Wenzel Meierfrankenfeld
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Priority to DE1995117861 priority Critical patent/DE19517861C1/en
Priority to PCT/EP1996/002054 priority patent/WO1996037027A1/en
Application granted granted Critical
Publication of DE19517861C1 publication Critical patent/DE19517861C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/63—Generation or supply of power specially adapted for television receivers
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Rectifiers (AREA)

Abstract

A mains operated electric equipment has consumers (6) in a standby-mode, other consumers (R1) in operation, a microprocessor controller ( mu C) for driving at least the other consumers (R1) and a device (4, 5) connected to the mains to generate a direct voltage for driving the microprocessor controller ( mu C). An accumulator is connected in parallel to the microprocessor controller ( mu C) to supply it with energy. In order to more reduce losses in standby mode by simple means, the energy accumulator is a capacitor (C), a switching element (7a, 7b) capable of being actuated by the microprocessor controller ( mu C) is arranged in the mains line (3) and the microprocessor controller ( mu C) recharges the capacitor (C) through the switching element (7a, 7b) at determined time intervals.

Description

Die Erfindung betrifft ein netzbetriebenes Elektrogerät mit den im Oberbegriff des Patentan­ spruchs 1 angegebenen Merkmalen. Ein solches Gerät ist aus der DE 34 25 793 A1 bekannt.The invention relates to a mains-operated electrical device with the in the preamble of the patent pronounced 1 characteristics. Such a device is known from DE 34 25 793 A1.

Bei den vorgenannten Elektrogeräten ist es bekannt, unabhängig von einer Nutzung ver­ schiedene Verbraucher in einem sogenannten Standby-Betrieb zu aktivieren. Dies können bei Haushaltsgeräten Uhren oder Temperaturanzeigen, bei Fernsehern Empfänger von Fernbe­ dienungen sein.In the aforementioned electrical devices, it is known to ver regardless of use to activate different consumers in a so-called standby mode. This can be done at Household appliances clocks or temperature displays, with television receivers from Fernbe be services.

Die Ansteuerung der weiteren Verbraucher erfolgt nur während des sogenannten Nutzbe­ triebs, wobei die Mikroprozessorsteuerung diese Verbraucher programmabhängig beispiels­ weise über Relais′ oder andere Schaltelemente an ihre jeweilige Versorgungsspannung schaltet. Zur galvanischen Netztrennung und zur Anpassung der Netzspannung an die Speise­ spannung der Mikroprozessorsteuerung wird in der Regel ein Transformator verwendet. Da über diesen Transformator auch die nicht von der Mikroprozessorsteuerung angesteuerten, d. h. programmunabhängigen Verbraucher versorgt werden, sind bestimmte Anforderungen an seine Mindestgröße gestellt. Hierdurch entstehen im Standby-Betrieb Wirbelstromverluste und Ummagnetisierungsverluste im Blechpaket und ohmsche Verluste in der Primärwicklung in der Größenordnung von einigen Watt.The other consumers are only activated during the so-called Nutzbe drives, the microprocessor control these consumers depending on the program, for example as via relay 'or other switching elements to their respective supply voltage switches. For electrical isolation and for adapting the mains voltage to the food voltage of the microprocessor control, a transformer is usually used. There This transformer also controls those not controlled by the microprocessor control d. H. program-independent consumers are supplied with certain requirements set its minimum size. This results in eddy current losses and in standby mode Magnetic reversal losses in the laminated core and ohmic losses in the primary winding in the The order of a few watts.

Zur teilweisen Vermeidung dieser Verluste ist es beispielsweise aus der DE 34 25 793 A1 be­ kannt, die programmunabhängig betriebenen Verbraucher, wie z. B. einen Fernbedienungs­ empfänger, über einen separaten, kleineren Transformator zu speisen. Hierdurch entstehen jedoch zusätzliche Anschaffungskosten für dieses Bauteil, außerdem liegen die Verluste immer noch im Wattbereich.To partially avoid these losses, it is, for example, from DE 34 25 793 A1 knows the program-operated consumers, such as. B. a remote control receiver to feed via a separate, smaller transformer. This creates however, additional acquisition costs for this component, and there are also losses still in the mud flats.

Aus der DE 44 32 444 ist es bekannt, zur Versorgung einer Airbagschaltung einen "Back-up- Kondensator" vorzusehen. Diese Schaltung wird jedoch an einer Gleichspannung, also nicht über ein Netzgerät betrieben und besitzt keinen Standby-Betrieb.From DE 44 32 444 it is known to supply a "back-up" Capacitor ". However, this circuit is connected to a DC voltage, ie not operated via a power supply and has no standby mode.

Der Erfindung stellt sich somit das Problem, bei einem eingangs beschriebenen Elektrogerät die Verluste im Standby-Betrieb auf einfachem Weg weiter zu verringern.The invention thus poses the problem with an electrical device described at the outset to easily further reduce losses in standby mode.

Erfindungsgemäß wird dieses Problem mit den im Patentanspruch 1 angegebenen Merkmalen gelöst. Eine zweckmäßige Weiterbildung ergibt sich aus dem nachfolgenden Unteranspruch.According to the invention this problem is solved with the features specified in claim 1. A Appropriate further training results from the following subclaim.

Ein Ausführungsbeispiel der Erfindung ist in einer Zeichnung rein schematisch dargestellt und wird nachstehend näher erläutert. Die Figur zeigt die Schaltskizze der Spannungsversorgung eines erfindungsgemäß gestalteten Elektrogeräts. Es besitzt eine Mikroprozessor­ steuerung (µC), welche über Steuerleitungen (2a; . . .; 2n) Relais′ (1a; . . .; 1n) ansteuert. Über diese Relais′ (1a; . . .; 1n) wird die An- und Abschaltung von hier nicht gezeigten programmab­ hängigen Verbrauchern vorgenommen. Die Mikroprozessorsteuerung (µC) wird mit einer Gleichspannung versorgt. Hierzu wird die Netzspannung (3), an die das Elektrogerät ange­ schlossen ist, über einen Transformator (4) und Bauelemente (5) zur Gleichrichtung und Sta­ bilisierung in eine stabilisierte Gleichspannung umgewandelt. Neben der Mikroprozessor­ steuerung (µC) werden auch programmunabhängige Verbraucher (6) an der stabilisierten Gleichspannung betrieben, beispielsweise eine Uhr oder der Funkempfänger einer Fern­ steuerung. Deren Betrieb kann unabhängig von der Mikroprozessorsteuerung (µC) oder durch diese gesteuert (nicht dargestellt) erfolgen.An embodiment of the invention is shown purely schematically in a drawing and is explained in more detail below. The figure shows the circuit diagram of the voltage supply of an electrical device designed according to the invention. It has a microprocessor control (µC) which controls relays' ( 1 a;...; 1 n) via control lines ( 2 a;...; 2 n). These relays' ( 1 a;...; 1 n) are used to switch on and off program-dependent consumers (not shown here). The microprocessor control (µC) is supplied with a DC voltage. For this purpose, the mains voltage ( 3 ), to which the electrical device is connected, is converted into a stabilized DC voltage via a transformer ( 4 ) and components ( 5 ) for rectification and stabilization. In addition to the microprocessor control (µC), program-independent consumers ( 6 ) are also operated on the stabilized DC voltage, for example a clock or the radio receiver of a remote control. Their operation can take place independently of the microprocessor control (µC) or controlled by it (not shown).

Parallel zur Mikroprozessorsteuerung (µC) ist ein Kondensator (C) mit einer relativ großen Kapazität beispielsweise in der Größenordnung von ca. 4700 µF (abhängig vom Entladestrom und der Frequenz der Nachladungen) angeordnet. Dieser Kondensator (C) wird in bestimmten Zeitabständen mit sehr kurzen Stromimpulsen geladen. Dazu wird der Transformator (4) primärseitig nur während der sehr kurzen Nachladezeiten des Kondensators (C) eingeschaltet. Als Schaltelement dient hier ein Relais (7), andere Wechselstromschalter sind ebenfalls möglich. Auf diese Weise ist es im Standby-Betrieb möglich, die Energieversorgung der Mikroprozessorsteuerung (µC) und der programmunabhängigen (6) Verbraucher durch die Ladung des Kondensators (C) sicherzustellen. Die Energie zum Einschalten des Relais′ (7) wird von der Restladung des Kondensators (C) geliefert, bis der Transformator (4) ein­ geschaltet ist.In parallel to the microprocessor control (µC), a capacitor (C) with a relatively large capacity is arranged, for example in the order of approximately 4700 µF (depending on the discharge current and the frequency of the recharging). This capacitor (C) is charged with very short current pulses at certain time intervals. For this purpose, the transformer ( 4 ) is only switched on on the primary side during the very short recharging times of the capacitor (C). A relay ( 7 ) serves as the switching element, other AC switches are also possible. In this way it is possible in standby mode to ensure the energy supply of the microprocessor control (µC) and the program-independent ( 6 ) consumers by charging the capacitor (C). The energy for switching on the relay '( 7 ) is supplied by the residual charge of the capacitor (C) until the transformer ( 4 ) is switched on.

Die Nachladezyklen für den Kondensator (C) können, wenn der Entladestrom und die Kon­ densatorkapazität (C) bekannt sind, mittels Zeittakt von der Mikroprozessorsteuerung (µC) gesteuert werden. Ansonsten kann die Kondensatorspannung (C) über A/D-Umsetzer ge­ messen und ebenfalls durch die Mikroprozessorsteuerung (µC) über die Beeinflussung von Frequenz und Dauer der Schließzeiten des Relais′ (7) geregelt werden.The recharge cycles for the capacitor (C) can, if the discharge current and the capacitor capacitance (C) are known, be controlled by the microprocessor control (µC) by means of a clock cycle. Otherwise, the capacitor voltage (C) can be measured via A / D converter and can also be regulated by the microprocessor control (µC) by influencing the frequency and duration of the closing times of the relay '( 7 ).

Parallel zum Relais (7) ist ein handbetätigtes oder automatisch wirkendes Schaltelement (8) angeordnet, um durch einen einmaligen kurzen Einschaltimpuls beim Einschalten der Netzspannung den Kondensator (C) nach einer längeren Trennung vom Netz aufladen zu können. Ein Einschalten des Nutzbetriebs kann durch dauerhaftes Einschalten des Relais′ (7) über die Mikroprozessorsteuerung (µC) oder alternativ über das Schaltelement (8) erfolgen. Beim Wechsel vom Nutzbetrieb in den Standby-Betrieb durch Öffnen des Schaltelements (8) bzw. Relais′ (7) muß zunächst ein Abschalten der Verbraucher erfolgen, damit der Kondensator (C) nicht entladen wird.A manually operated or automatically operating switching element ( 8 ) is arranged parallel to the relay ( 7 ) in order to be able to charge the capacitor (C) after a longer disconnection from the mains by means of a single short switch-on pulse when the mains voltage is switched on. The useful mode can be switched on by permanently switching on the relay '( 7 ) via the microprocessor control (µC) or alternatively via the switching element ( 8 ). When changing from useful mode to standby mode by opening the switching element ( 8 ) or relay '( 7 ), the consumers must first be switched off so that the capacitor (C) is not discharged.

Claims (2)

1. Netzbetriebenes Elektrogerät mit Verbrauchern (6), welche in einem Standby-Betrieb aktiviert sind, mit weiteren Verbrauchern, welche während eines Nutzbetriebs aktiviert sind, mit einer Mikroprozessorsteuerung (µC) zur Ansteuerung mindestens der weiteren Verbraucher und mit einer an einer Netzleitung liegenden Vorrichtung (4, 5) zur Bereitstellung einer Gleichspannung zum Betrieb der Mikroprozessorsteuerung (µC), wobei parallel zur Mikroprozessorsteuerung (µC) ein Energiespeicher zu deren Versorgung angeschlossen ist, dadurch gekennzeichnet,
  • - daß der Energiespeicher ein Kondensator (C) ist,
  • - daß in der Netzleitung ein von der Mikroprozessorsteuerung (µC) betätigbares Schaltelement (7) angeordnet ist, und
  • - daß die Mikroprozessorsteuerung (µC) über das Schaltelement (7) den Kondensator (C) in bestimmten Zeitabständen nachlädt.
1. Mains-operated electrical device with consumers ( 6 ), which are activated in a standby mode, with further consumers, which are activated during a useful operation, with a microprocessor control (.mu.C) for controlling at least the other consumers and with a device connected to a mains line ( 4, 5 ) for providing a DC voltage for operating the microprocessor control (µC), an energy storage device being connected in parallel with the microprocessor control (µC) to supply it, characterized in that
  • - That the energy storage is a capacitor (C),
  • - That a switching element ( 7 ) which can be actuated by the microprocessor control (.mu.C) is arranged in the power line, and
  • - That the microprocessor control (µC) reloads the capacitor (C) at certain time intervals via the switching element ( 7 ).
2. Netzbetriebenes Elektrogerät nach Anspruch 1, dadurch gekennzeichnet, daß in der Netzleitung (3) parallel zu dem von der Mikroprozessorsteuerung (µC) betätigbaren Schaltelement (7) ein weiteres Schaltelement (8) angeordnet ist.2. Mains-operated electrical appliance according to claim 1, characterized in that a further switching element ( 8 ) is arranged in the mains line ( 3 ) parallel to the switching element ( 7 ) which can be actuated by the microprocessor control (µC).
DE1995117861 1995-05-16 1995-05-16 Mains powered electrical device Expired - Fee Related DE19517861C1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE1995117861 DE19517861C1 (en) 1995-05-16 1995-05-16 Mains powered electrical device
PCT/EP1996/002054 WO1996037027A1 (en) 1995-05-16 1996-05-14 Mains operated electric equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1995117861 DE19517861C1 (en) 1995-05-16 1995-05-16 Mains powered electrical device

Publications (1)

Publication Number Publication Date
DE19517861C1 true DE19517861C1 (en) 1996-05-23

Family

ID=7761996

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995117861 Expired - Fee Related DE19517861C1 (en) 1995-05-16 1995-05-16 Mains powered electrical device

Country Status (2)

Country Link
DE (1) DE19517861C1 (en)
WO (1) WO1996037027A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19648657C1 (en) * 1996-09-16 1998-01-02 Manfred Dipl Ing Abelmann Arrangement for controlling and monitoring electrical loads
DE19639644A1 (en) * 1996-09-26 1998-04-02 Siemens Ag Method and arrangement for controlling functions in a program-controlled circuit arrangement when the operating voltage fails
EP0959646A2 (en) 1998-05-20 1999-11-24 Miele & Cie. GmbH & Co. Glass ceramic cooktop
DE19635611C2 (en) * 1996-08-26 2000-06-21 Rainer Kisthardt Circuit arrangement (SAO) for reducing the current consumption, electronic and electrical devices in stand-by mode
EP0994558A3 (en) * 1998-10-14 2000-12-27 Getatron Elektronik Energy saving circuit for a power pack
DE19805373B4 (en) * 1998-02-11 2009-09-17 Hahn, Uwe Circuit arrangement for power supplies
DE102008041968A1 (en) * 2008-09-10 2010-03-11 BSH Bosch und Siemens Hausgeräte GmbH Circuit of a household appliance and method for operating the household appliance
DE102010002277A1 (en) * 2010-02-24 2011-08-25 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Circuit arrangement for operating a household appliance and corresponding method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2389461A (en) * 2002-06-06 2003-12-10 Arc Technology Co Ltd Control circuit for a solenoid actuated relay

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3425793A1 (en) * 1984-07-13 1986-01-16 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen CIRCUIT CONCEPT FOR A TV WITH STAND-BY OPERATION
DE4432444A1 (en) * 1993-09-14 1995-03-16 Nippon Denso Co System for protecting the occupants of vehicles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5914538A (en) * 1993-04-27 1999-06-22 Canon Kabushiki Kaisha Communication apparatus and power supply device therefor
JPH0787684A (en) * 1993-08-03 1995-03-31 Funai Electric Co Ltd Power failure compensation circuit for electronic equipment
CH687656A5 (en) * 1993-10-12 1997-01-15 Fischer Helmut Power supply for standby circuits of electrical appliances.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3425793A1 (en) * 1984-07-13 1986-01-16 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen CIRCUIT CONCEPT FOR A TV WITH STAND-BY OPERATION
DE4432444A1 (en) * 1993-09-14 1995-03-16 Nippon Denso Co System for protecting the occupants of vehicles

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19635611C2 (en) * 1996-08-26 2000-06-21 Rainer Kisthardt Circuit arrangement (SAO) for reducing the current consumption, electronic and electrical devices in stand-by mode
DE19648657C1 (en) * 1996-09-16 1998-01-02 Manfred Dipl Ing Abelmann Arrangement for controlling and monitoring electrical loads
EP0829942A2 (en) * 1996-09-16 1998-03-18 Manfred Dipl.-Ing. Abelmann Method and apparatus for controlling and monitoring electrical consumers
EP0829942A3 (en) * 1996-09-16 1999-04-28 Manfred Dipl.-Ing. Abelmann Method and apparatus for controlling and monitoring electrical consumers
DE19639644A1 (en) * 1996-09-26 1998-04-02 Siemens Ag Method and arrangement for controlling functions in a program-controlled circuit arrangement when the operating voltage fails
DE19805373B4 (en) * 1998-02-11 2009-09-17 Hahn, Uwe Circuit arrangement for power supplies
EP0959646A2 (en) 1998-05-20 1999-11-24 Miele & Cie. GmbH & Co. Glass ceramic cooktop
EP0994558A3 (en) * 1998-10-14 2000-12-27 Getatron Elektronik Energy saving circuit for a power pack
DE102008041968A1 (en) * 2008-09-10 2010-03-11 BSH Bosch und Siemens Hausgeräte GmbH Circuit of a household appliance and method for operating the household appliance
DE102010002277A1 (en) * 2010-02-24 2011-08-25 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Circuit arrangement for operating a household appliance and corresponding method

Also Published As

Publication number Publication date
WO1996037027A1 (en) 1996-11-21

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