DE2841696A1 - Infrared remote control receiver - regulates brightness circuit of dimmer switch and has infrared photodiode coupled via amplifiers and rectifier to output - Google Patents

Infrared remote control receiver - regulates brightness circuit of dimmer switch and has infrared photodiode coupled via amplifiers and rectifier to output

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Publication number
DE2841696A1
DE2841696A1 DE19782841696 DE2841696A DE2841696A1 DE 2841696 A1 DE2841696 A1 DE 2841696A1 DE 19782841696 DE19782841696 DE 19782841696 DE 2841696 A DE2841696 A DE 2841696A DE 2841696 A1 DE2841696 A1 DE 2841696A1
Authority
DE
Germany
Prior art keywords
infrared
remote control
resistor
output
control receiver
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19782841696
Other languages
German (de)
Inventor
Nichtnennung Beantragt
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.)
Insta Elektro GmbH and Co KG
Original Assignee
Insta Elektro GmbH and Co 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 Insta Elektro GmbH and Co KG filed Critical Insta Elektro GmbH and Co KG
Priority to DE19782841696 priority Critical patent/DE2841696A1/en
Publication of DE2841696A1 publication Critical patent/DE2841696A1/en
Withdrawn legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B10/00Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60Receivers
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/04Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Selective Calling Equipment (AREA)
  • Optical Communication System (AREA)

Abstract

The infrared remote control receiver has an IR photodiode as a receiver in series with a resistor. The AC voltage across the resistor is applied via a capacitor to the base of a transistor forming a first amplification stage. Two further amplification stages are connected to the output of the first stage. The output signal from the third stage produces a voltage drop across a resistor. This drops is rectified and amplified and applied to an RC circuit as a DC signal for controlling the brightness circuit.

Description

Infrarotfernoedienungsempfänger mit einer Schaltungs-Infrared remote control receiver with a circuit

anordnung zur Steuerung der Helligkeitsschaltung eines Unterputzdimmers Die Erfindung bezieht sich auf einen Infrarotfernbsdienungsempfänger mit einer Schaltungsanordnung zur Steuerung der Helligkeitsschaltung eines Unterputzdimmers.arrangement for controlling the brightness switching of a flush-mounted dimmer The invention relates to an infrared remote control receiver with a circuit arrangement for controlling the brightness switching of a flush-mounted dimmer.

Für Infrarotfernoedienungsempfänger sind Bauelemente in Form von integrierten Bausteinen bekannt (vgl. z.B. Siemens Typ TCA 440). Diese bekannten Baustein sind jedoch nicht geeignet fiir den Einsatz in Unterputzdimmern bei Betrieb ohne Nulleiter, da einerseits der Stromverbrauch solcher Bausteine hoch ist, andererseits ein derartiger Baustein mit seinen erforderlichen peripheren Bauteilen in einem Unterputzgerät neben der eigentlichen Dimmerschaltung nicht mehr unterzubringen ist.For infrared remote control receivers, components are in the form of integrated Modules known (see e.g. Siemens type TCA 440). These are known building blocks but not suitable for use in flush-mounted dimmers when operated without a neutral conductor, because on the one hand the power consumption of such modules is high, on the other hand such a device Module with its required peripheral components in a flush-mounted device can no longer be accommodated next to the actual dimmer circuit.

Der Erfindung liegt Iie Aufgabe zugrunde, eine Schaltung zu schaffen, die die eingangs genannten Nachteile vermeidet. Dies wird erfindungsgemäß dadurch erreicht, d<ß eine Infrarotdiode als Empfänger in Reihe mit eiem Widerstand liegt wobei die aIa Widerstand gebildete Wechselspannung über einen Kondensator kapazitiv auf die Basis des Dransistors einer ersten Verstärkerstufe gekoppelt wird, der zwei weitere Verstärkerstufen nachgeschaltet sind, daß das Ausgangssignal der dritten Verstärkerstufe an dem Widerstand einen Spannungsabfall bewirkt, durch die Diode gleichgerichtet wird, ferner durch einen transistor weiterverstärkt wird und an einer Serienschaltung, bestehend aus einem RC-Glied, als Gleichspannungssignal zur Steuerung der Helligkeitsschaltung vorhanden ist.The invention is based on the object of creating a circuit which avoids the disadvantages mentioned above. According to the invention, this is thereby achieved achieved that an infrared diode as a receiver is in series with a resistor where the aIa resistance is formed by a capacitive alternating voltage across a capacitor is coupled to the base of the transistor of a first amplifier stage, the two further amplifier stages are connected downstream that the output signal of the third Amplifier stage causes a voltage drop across the resistor, through the diode is rectified, further amplified by a transistor and on a series circuit, consisting of an RC element, as a DC voltage signal for Control of the brightness switching is available.

Ein Ausführungsbeispiel und weitere Einzelheiten der Erfindung sind anhand der Abbildung näher beschrieben.An embodiment and further details of the invention are described in more detail using the illustration.

Gemäß der Schaltungskonfiguration empfängt die Infrarotdiode D1 in diesem Ausführungsbeispiel ein 6 kHz moduliertes Lichtsi,- .al, welches von einen Infrarotsender zur Steuerung abgegeben wird. Diese von der Diode D1 empfangenen Lichtsignale verursachen in der Diode eine Widerstanösänderung, welche der Fre-@uenz des Lichtsignals entspricht. Durch diese Widerstandsänderung wird in dem in Reihe mit der Diode D1 liegenden Widerstand R1 eine proportionale Stromänderung hervorgerufen, so daß die somit an Ri gebildete Wechselspannung über einen Kondensator Ol @apazitiv auf die Basis des Transistors T1 gekoppelt wird. Der von bei Transistor fl"l gebildeten ersten Verstärkerstufe schliessen sich die weiteren Verstärkerstufen der Transistoren T2 und T3 an.According to the circuit configuration, the infrared diode D1 receives in this embodiment a 6 kHz modulated light si, - .al, which of a Infrared transmitter is released for control. These received by the diode D1 Light signals cause a change in resistance in the diode, which is the frequency of the light signal. This change in resistance results in the in series caused a proportional change in current with resistor R1 connected to diode D1, so that the alternating voltage thus formed at Ri via a capacitor Ol @apazitiv is coupled to the base of transistor T1. The one formed by transistor fl "l the first amplifier stage is followed by the further amplifier stages of the transistors T2 and T3 on.

Der aufbau einer solchen Verstärkeranordnung wurde hier ganz bewußt so gewählt, weil dadurch die Stromaufnahme gering gehalten werden kann und um eine Gesamtverstärkung von mindestens 70 dB zu erzielen.The structure of such an amplifier arrangement became quite conscious here so chosen because this way the power consumption can be kept low and by one To achieve a total gain of at least 70 dB.

Da bereits bei anderen Systemen, z.B. bei der Fernsehbedienung mit Infrarot die Übertragungsfrequenzen von 25 bis 40 kHz arbeiten, wurde hierbei die Übertragungsfrequenz auf 8 kHz festgelegt, um einen möglichen gegenseitigen Einfluß weitgehend zu verhindern. Andererseits weist der erfindungsgemäße Schaltungsaufbau eine Bandcharakteristik auf, damit im Falle der Fernsehbedienung nicht die Helligkeitssteuerschaltung eines Dimmers durch die 25 bis 40 kHz beeinträchtigt wird. In dem Transistor T4 schließlich wird das Signal abermals verstärkt und gleichgerichtet. Mit diesem Gleichspannungssignal A wird die eigentliche Dimmerschaltung gesteuert.As already with other systems, e.g. with the television control with Infrared the transmission frequencies from 25 to 40 kHz work, this was the Transmission frequency set to 8 kHz to avoid possible mutual influence largely to prevent. On the other hand, the circuit structure according to the invention has a band characteristic so as not to use the brightness control circuit in the case of television operation of a dimmer which affects 25 to 40 kHz. In the transistor T4 finally the signal is amplified and rectified again. With this DC voltage signal A the actual dimmer circuit is controlled.

Die besonderen Vorteile dieser erfindungsgemäßen Schaltung liegen auch iii der Verwendung relativ Kleiner Bauteile, die einen gedrängten Schaltungsaufbau gestatten. Im vorliegenden Fall war dies zwingend, da der bei einem Unterputzdimmereinsatz noch zur Verfügung stehende Raum sehr klein ist und die Forderung bestand, daß beide Teile, nämich Dimmereinsatz und die Schaltung, gemäß der Erfindung in einer Unterputzdose Platz finden.The particular advantages of this circuit according to the invention are also iii the use of relatively small components that form a compact circuit structure allow. In the present case, this was mandatory, as the one with a flush-mounted dimmer insert The available space is very small and there was a requirement that both Parts, namely dimmer insert and the circuit, according to the invention in a flush-mounted box Find space.

Claims (1)

Patentanspruch Infrarotfernbedienungsempfänger mit einer Schaltungsanordnung zur Steuerung der Helligkeitsschaltung eines Unterputzdimmers, dadurch gekennzeichnet, daß eine Infrarotdiode (D1) als Empfänger in Reihe mit einem Widerstand (R1) liegt, wobei die am Widerstand (R1) gebildete Wechselspannung über einen Kondensator (C1) kapazitiv auf die Basis des Transistors (T1) einer ersten Verstärkerstufe gekoppelt wird, der zwei weiters Verstärkerstufen (T2) und (T3) nachgeschaltet sind, daß das Ausgangssignal der dritten Verstärkerstufe (T3), an dem Widerstand (R8) einen Spannungsabfall bewirkt, dirch die Diode (D2) gleichgerichtet wird, ferner durch einen Transistor (T4) weiterverstärkt wird und einer Serienschaltung, bestehend aus einem RC-Glied (R10, C7), als Gleichspannungssignal (@) zur Steuerung der Helligkeitsschaltung vorhanden ist.Infrared remote control receiver with a circuit arrangement for controlling the brightness switching of a flush-mounted dimmer, characterized in that, that an infrared diode (D1) as a receiver is in series with a resistor (R1), the alternating voltage formed at the resistor (R1) via a capacitor (C1) capacitively coupled to the base of the transistor (T1) of a first amplifier stage is, the two further amplifier stages (T2) and (T3) are connected downstream that the Output signal of the third amplifier stage (T3), a voltage drop across the resistor (R8) causes the diode (D2) to be rectified, furthermore by a transistor (T4) is further amplified and a series circuit consisting of an RC element (R10, C7), as a DC voltage signal (@) to control the brightness switching is available.
DE19782841696 1978-09-25 1978-09-25 Infrared remote control receiver - regulates brightness circuit of dimmer switch and has infrared photodiode coupled via amplifiers and rectifier to output Withdrawn DE2841696A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782841696 DE2841696A1 (en) 1978-09-25 1978-09-25 Infrared remote control receiver - regulates brightness circuit of dimmer switch and has infrared photodiode coupled via amplifiers and rectifier to output

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782841696 DE2841696A1 (en) 1978-09-25 1978-09-25 Infrared remote control receiver - regulates brightness circuit of dimmer switch and has infrared photodiode coupled via amplifiers and rectifier to output

Publications (1)

Publication Number Publication Date
DE2841696A1 true DE2841696A1 (en) 1980-04-03

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DE19782841696 Withdrawn DE2841696A1 (en) 1978-09-25 1978-09-25 Infrared remote control receiver - regulates brightness circuit of dimmer switch and has infrared photodiode coupled via amplifiers and rectifier to output

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DE (1) DE2841696A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3214156A1 (en) * 1982-04-17 1983-10-20 Heinrich Kopp Gmbh & Co Kg, 8756 Kahl Arrangement for remote control of an electrical apparatus for switching on and switching off, as well as for power control of loads
EP0098521A1 (en) * 1982-07-06 1984-01-18 Heimann GmbH Method and apparatus for automatic room light switching
DE4016400A1 (en) * 1990-05-22 1991-11-28 Karlheinz Beckhausen Sensor position monitor e.g. for sliding door installation - has stationary and mobile units interconnected by infrared links for data transmission and message relaying

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3214156A1 (en) * 1982-04-17 1983-10-20 Heinrich Kopp Gmbh & Co Kg, 8756 Kahl Arrangement for remote control of an electrical apparatus for switching on and switching off, as well as for power control of loads
EP0098521A1 (en) * 1982-07-06 1984-01-18 Heimann GmbH Method and apparatus for automatic room light switching
DE4016400A1 (en) * 1990-05-22 1991-11-28 Karlheinz Beckhausen Sensor position monitor e.g. for sliding door installation - has stationary and mobile units interconnected by infrared links for data transmission and message relaying

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