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DE4240351C1 - Standby circuit for remotely controlled video equipment - incorporates switched-capacitor feed to mains rectifier providing reduced output while load-switching relay is not energised. - Google Patents

Standby circuit for remotely controlled video equipment - incorporates switched-capacitor feed to mains rectifier providing reduced output while load-switching relay is not energised.

Info

Publication number
DE4240351C1
DE4240351C1 DE4240351A DE4240351A DE4240351C1 DE 4240351 C1 DE4240351 C1 DE 4240351C1 DE 4240351 A DE4240351 A DE 4240351A DE 4240351 A DE4240351 A DE 4240351A DE 4240351 C1 DE4240351 C1 DE 4240351C1
Authority
DE
Germany
Prior art keywords
capacitor
relay
load
switched
energised
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
DE4240351A
Other languages
German (de)
Inventor
Wilfrid O-3258 Loederburg De Seckendorf
Klaus O-3251 Gross Boernecke De Junge
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.)
RFT RUNDFUNK-FERNSEH-TELEKOMMUNIKATION AG 39418 STASSFURT DE
Original Assignee
RFT RUNDFUNK-FERNSEH-TELEKOMMUNIKATION AG 39418 STASSFURT DE
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 RFT RUNDFUNK-FERNSEH-TELEKOMMUNIKATION AG 39418 STASSFURT DE filed Critical RFT RUNDFUNK-FERNSEH-TELEKOMMUNIKATION AG 39418 STASSFURT DE
Priority to DE4240351A priority Critical patent/DE4240351C1/en
Application granted granted Critical
Publication of DE4240351C1 publication Critical patent/DE4240351C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/005Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting using a power saving mode
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/63Generation or supply of power specially adapted for television receivers
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/05Capacitor coupled rectifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Power Engineering (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Dc-Dc Converters (AREA)

Abstract

The load is supplied with mains AC via the contact (5) of a relay (1) whose closure connects two capacitors (3,4) in parallel to the input of the mains rectifier (6). In standby mode the smaller capacitor (3) constitutes a capacitive impedance and the rectifier charges an electrolytic capacitor (7) to a voltage sufficient to supply a microprocessor (2) and infrared detector, but not to hold-in the relay. The larger capacitor (4) compensates for the increased current consumption of the relay winding. USE/ADVANTAGE - Esp. for TV or satellite broadcast receiver or video recorder, substantially reduced power consumption of about 100 mW is achieved with min. circuit complexity.

Description

Die Erfindung betrifft eine Schaltungsanordnung nach dem Oberbegriff des Patentanspruchs. Die Leistungsaufnahme von infrarot-fernbedienbaren Geräten, insbesondere Fernsehgeräte, beträgt im Stand-by-Betrieb ca. 3- 15 Watt.The invention relates to a circuit arrangement according to the Preamble of the claim. The power consumption of infrared remote-controlled devices, TVs, in stand-by mode is approx. 15 watts.

Schaltungskonzepte, welche die Leistungsaufnahme im Stand-by- Betrieb wesentlich senken können, sind in der DE-OS 31 37 081 bekannt geworden, bei der über Solarzellen eine wiederaufladbare Batterie gepuffert wird. Der Schaltungsaufwand und Kosten für diese Lösung sind relativ hoch. Mit der DE-OS 32 42 333, EP 01 67 737 A1 und EP 01 58 251 A1 sind Lösungen für einen stromsparenden Stand-by-Betrieb bekanntgeworden. Die Leistungsaufnahme dieser Lösungen im Stand-by-Betrieb ist bedingt durch die Verwendung eines Netztransformators nicht wesentlich verringert worden.Circuit concepts, which reduce the power consumption in the stand-by Can significantly reduce operation, are in DE-OS 31 37 081 became known in the solar cells via a rechargeable Battery is buffered. The circuit complexity and costs for this solution is relatively high. With DE-OS 32 42 333, EP 01 67 737 A1 and EP 01 58 251 A1 are Solutions for energy-efficient stand-by operation known. The power consumption of these solutions in stand-by mode is due to the use of a mains transformer not significantly reduced.

Der vorliegenden Erfindung lag die Aufgabe zugrunde, ein Schaltungskonzept zu entwickeln, das eine wesentlich reduzierte Leistungsaufnahme von ca. 100 mW bei minimalem Schaltungsaufwand im Stand-by-Betrieb ermöglicht.The present invention has the object, a To develop a circuit concept that significantly reduced Power consumption of approx. 100 mW with minimal circuit complexity in stand-by mode.

Die Aufgabe ist erfindungsgemäß nach der im Patentanspruch wiedergegebenen Lehre gelöst.The object is according to the invention in the claim solved doctrine solved.

Gemäß dem Schaltungskonzept wird im Stand-by-Betrieb nur der IR- Empfänger und Mikrorechner (2) mit Relais (1) mit einer Gleichspannung versorgt, die von einem Kondensator (3) als kapazitivem Vorwiderstand und einer Gleichrichteranordnung (6) mit Ladeelko (7) direkt aus der Netzspannung erzeugt wird. Beim Einschalten des Relais (1) wird über den Relaiskontakt (5) ein zweiter Kondensator (4) dem ersten Kondensator (3) parallelgeschaltet. Im Stand-by-Betrieb ist der Kondensator (3) als kapazitiver Widerstand und die Gleichrichterkombination (6) mit dem Ladeelko (7) so bemessen, daß die Betriebsspannungsversorgung des IR- Empfängers, des Mikrorechners und die Einschaltenergie des Relais gesichert ist, andererseits der Strom zum Halten des Relais nicht ausreicht. Damit ergibt sich im Stand-by-Betrieb eine Leistungsaufnahme je nach verwendeten IR-Empfänger, Mikrorechner und Relais von ca. 100 mW. Um den erforderlichen Strom zum Halten des Relais aufzubringen, wird erfindungsgemäß ein zweiter Kondensator (4) nach Schließen des Relaiskontaktes dem ersten Kondensator (3) parallelgeschaltet. Dabei ist kein separater Relaiskontakt notwendig, sondern der Kondensator kann über den Kontakt, mit dem der Verbraucher zugeschaltet wird, ebenfalls zugeschaltet werden. According to the circuit concept, in stand-by mode only the IR receiver and microcomputer ( 2 ) are supplied with relays ( 1 ) with a DC voltage which is supplied by a capacitor ( 3 ) as a capacitive series resistor and a rectifier arrangement ( 6 ) with charging capacitor ( 7 ) is generated directly from the mains voltage. When the relay ( 1 ) is switched on, a second capacitor ( 4 ) is connected in parallel to the first capacitor ( 3 ) via the relay contact ( 5 ). In stand-by mode, the capacitor ( 3 ) as a capacitive resistor and the rectifier combination ( 6 ) with the Ladeelko ( 7 ) so dimensioned that the operating voltage supply of the IR receiver, the microcomputer and the turn-on of the relay is secured, on the other hand Power to hold the relay is insufficient. This results in a stand-by power consumption depending on the used IR receiver, microcomputer and relays of about 100 mW. In order to apply the required current for holding the relay, according to the invention a second capacitor ( 4 ) is connected in parallel with the first capacitor ( 3 ) after closing the relay contact. In this case, no separate relay contact is necessary, but the capacitor can also be connected via the contact with which the consumer is switched.

Der Ladeelko (7) hat die Aufgabe, die Energie zum Einschalten des Relais zu liefern. Der Kondensator (4) ist so bemessen, daß der erhöhte Stromverbrauch der Relaiswicklung ausgeglichen wird. In Ausgestaltung der Schaltung kann z. B. ein Optokoppler zur Weiterleitung der Befehle an den Hauptrechner eingesetzt werden. Weiterhin ist über einen Optokoppler eine Rückführung von Befehlen vom Hauptrechner, z. B. Timersteuerung, zum Rückschalten in den Stand-by-Betrieb möglich. In der praktisch erprobten Schaltung wurden folgende Bauteile verwendet:The Ladeelko ( 7 ) has the task to provide the power to turn on the relay. The capacitor ( 4 ) is sized so that the increased power consumption of the relay coil is compensated. In an embodiment of the circuit can, for. B. an optocoupler for forwarding the commands to the main computer can be used. Furthermore, via an optocoupler feedback of commands from the main computer, z. B. timer control, for switching back to stand-by mode possible. In the practically tested circuit, the following components were used:

Kondensator (3)|0,15 µFCapacitor ( 3 ) | 0.15 μF Kondensator (4)Capacitor ( 4 ) 0,5 µF0.5 μF Elko (7)Elko ( 7 ) 470 µF470 μF Mikrorechner:Microcomputers: C-MOS-Rechner Z 86 E 08C-MOS computer Z 86 E 08

Claims (1)

Stand-by-Schaltung für infrarot-fernbedienbare Geräte, insbesondere Fernsehgeräte, Satellitenreceiver und Videorecorder mit einem Relais (1) zur Unterbrechung der Betriebsstromversorgung, einer Steuerelektronik mit IR-Empfänger (2) und einem direkt mit dem Netzeingang verbundenen Kondensator (3) als kapazitiver Widerstand zur Stromversorgung der Steuerelektronik, dadurch gekennzeichnet, daß ein zweiter Kondensator (4) als kapazitiver Vorwiderstand mit dem lastseitigen Anschluß des Relaiskontaktes (5) zur Betriebsstromunterbrechung derart verbunden ist, daß dieser bei geschlossenem Relaiskontakt dem ersten Kondensator (3) parallelgeschaltet ist und seine Kapazität eine solche Größe aufweist, daß am Ausgang einer Gleichrichteranordnung (6) eine Stromerhöhung um den Betrag des Stromverbrauches der Relaiswicklung entsteht.Stand-by circuit for infrared remote-controlled devices, in particular television sets, satellite receivers and video recorders with a relay ( 1 ) for interrupting the operating power supply, a control electronics with IR receiver ( 2 ) and a directly connected to the mains input capacitor ( 3 ) as a capacitive Resistance to the power supply of the control electronics, characterized in that a second capacitor ( 4 ) is connected as a capacitive series resistor to the load-side terminal of the relay contact ( 5 ) for operating power interruption such that it is connected in parallel with the relay contact closed the first capacitor ( 3 ) and its capacity has such a size that at the output of a rectifier arrangement ( 6 ), a current increase by the amount of power consumption of the relay coil is formed.
DE4240351A 1992-11-06 1992-11-06 Standby circuit for remotely controlled video equipment - incorporates switched-capacitor feed to mains rectifier providing reduced output while load-switching relay is not energised. Expired - Fee Related DE4240351C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4240351A DE4240351C1 (en) 1992-11-06 1992-11-06 Standby circuit for remotely controlled video equipment - incorporates switched-capacitor feed to mains rectifier providing reduced output while load-switching relay is not energised.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4240351A DE4240351C1 (en) 1992-11-06 1992-11-06 Standby circuit for remotely controlled video equipment - incorporates switched-capacitor feed to mains rectifier providing reduced output while load-switching relay is not energised.

Publications (1)

Publication Number Publication Date
DE4240351C1 true DE4240351C1 (en) 1993-09-23

Family

ID=6474088

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4240351A Expired - Fee Related DE4240351C1 (en) 1992-11-06 1992-11-06 Standby circuit for remotely controlled video equipment - incorporates switched-capacitor feed to mains rectifier providing reduced output while load-switching relay is not energised.

Country Status (1)

Country Link
DE (1) DE4240351C1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995010875A1 (en) * 1993-10-12 1995-04-20 Fischer, Helmut Power supply for standby circuits of electrical devices
DE19503243A1 (en) * 1995-02-02 1996-08-08 Loewe Opta Gmbh Start=up circuit for remotely controlled electronic entertainment device e.g. TV receiver with SMPS connection
EP0776128A2 (en) 1995-10-27 1997-05-28 NOKIA TECHNOLOGY GmbH Remotely controlled video apparatus
DE19616726A1 (en) * 1996-04-26 1997-10-30 Thomson Brandt Gmbh Arrangement for switching off the mains voltage of an electrical device
DE19648657C1 (en) * 1996-09-16 1998-01-02 Manfred Dipl Ing Abelmann Arrangement for controlling and monitoring electrical loads
DE19805160A1 (en) * 1998-02-10 1999-08-12 Ronny Timmreck Electronic circuit for maintaining electrical equipment ready using a capacitor
DE19801196C2 (en) * 1998-01-15 2000-12-21 Grundig Ag Device for powering an electronic device
FR2805678A1 (en) * 2000-02-29 2001-08-31 Brandt Cooking SWITCHING POWER SUPPLY
DE102010016406A1 (en) * 2010-04-12 2011-10-13 Vibradorm Gmbh Circuit arrangement for switching on a consumer connectable via relay contacts with connections for an electrical supply network
CN103237246A (en) * 2013-03-27 2013-08-07 深圳市九洲电器有限公司 Set-top box actual standby and standby wake-up circuit and set-top box

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3137081A1 (en) * 1981-09-17 1983-03-24 Siemens AG, 1000 Berlin und 8000 München TELEVISION RECEIVER WITH INFRARED REMOTE CONTROL
DE3242333A1 (en) * 1982-11-16 1984-05-17 Blaupunkt-Werke Gmbh, 3200 Hildesheim Standby circuit for television receivers with remote control
EP0158251A1 (en) * 1984-04-03 1985-10-16 Deutsche Thomson-Brandt GmbH Television receiver stand-by circuit
EP0167737A1 (en) * 1984-07-13 1986-01-15 Deutsche Thomson-Brandt GmbH Circuit arrangement for a television apparatus with stand-by operation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3137081A1 (en) * 1981-09-17 1983-03-24 Siemens AG, 1000 Berlin und 8000 München TELEVISION RECEIVER WITH INFRARED REMOTE CONTROL
DE3242333A1 (en) * 1982-11-16 1984-05-17 Blaupunkt-Werke Gmbh, 3200 Hildesheim Standby circuit for television receivers with remote control
EP0158251A1 (en) * 1984-04-03 1985-10-16 Deutsche Thomson-Brandt GmbH Television receiver stand-by circuit
EP0167737A1 (en) * 1984-07-13 1986-01-15 Deutsche Thomson-Brandt GmbH Circuit arrangement for a television apparatus with stand-by operation

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995010875A1 (en) * 1993-10-12 1995-04-20 Fischer, Helmut Power supply for standby circuits of electrical devices
DE19503243A1 (en) * 1995-02-02 1996-08-08 Loewe Opta Gmbh Start=up circuit for remotely controlled electronic entertainment device e.g. TV receiver with SMPS connection
DE19503243C2 (en) * 1995-02-02 2000-08-03 Loewe Opta Gmbh Circuit arrangement
EP0776128A2 (en) 1995-10-27 1997-05-28 NOKIA TECHNOLOGY GmbH Remotely controlled video apparatus
DE19616726A1 (en) * 1996-04-26 1997-10-30 Thomson Brandt Gmbh Arrangement for switching off the mains voltage of an electrical device
EP0804026A3 (en) * 1996-04-26 1998-05-20 Deutsche Thomson-Brandt Gmbh Device for switching off the main voltage of an electrical appliance
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
DE19801196C2 (en) * 1998-01-15 2000-12-21 Grundig Ag Device for powering an electronic device
DE19805160A1 (en) * 1998-02-10 1999-08-12 Ronny Timmreck Electronic circuit for maintaining electrical equipment ready using a capacitor
FR2805678A1 (en) * 2000-02-29 2001-08-31 Brandt Cooking SWITCHING POWER SUPPLY
WO2001065674A2 (en) * 2000-02-29 2001-09-07 Brandt Cooking Switching power supply
WO2001065674A3 (en) * 2000-02-29 2002-05-10 Brandt Cooking Switching power supply
DE102010016406A1 (en) * 2010-04-12 2011-10-13 Vibradorm Gmbh Circuit arrangement for switching on a consumer connectable via relay contacts with connections for an electrical supply network
CN103237246A (en) * 2013-03-27 2013-08-07 深圳市九洲电器有限公司 Set-top box actual standby and standby wake-up circuit and set-top box
CN103237246B (en) * 2013-03-27 2016-07-06 深圳市九洲电器有限公司 Set Top Box is very standby and standby wake up circuit and Set Top Box

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee