DE19711885A1

DE19711885A1 - Controlled cyclic variation in electrical lighting level

Info

Publication number: DE19711885A1
Application number: DE1997111885
Authority: DE
Inventors: Erich Kaifler
Original assignee: Erich Kaifler
Priority date: 1997-03-21
Filing date: 1997-03-21
Publication date: 1998-09-24

Abstract

The lighting elements, e.g. incandescent, LED, are supplied with variable power that is controlled by a microcontroller (mu C) that operates to a program that is stored in an EPROM memory. The controller outputs pulse width modulated commands to power drive stages supplying the lighting units. The lighting level can be cyclically varied in a number of programmed ways, e.g. triangular ramp up and down.

Description

In den Bereichen "Dekoration", "Disco" etc. werden Beleuchtungen verwendet, die Farbe, Muster und Lichtstärke durch bewegliche Teile (bewegte Masken, Filter, Linsen etc.) variieren. In the "decoration", "disco" etc. lights are used to vary the color, pattern and intensity by moving parts (moving masks, filters, lenses, etc.).

Andererseits gibt es Schaltungen, die blinken oder die Lichterketten Lichtervorhänge oder laufende Lichterketten ermöglichen, bei denen die Lampen jedoch immer voll ein- bzw. ausgeschaltet werden. On the other hand, there are circuits that flashing lights or light curtains or running lights allow, where the lamps but always full on or off.

Dimmer sind z. Dimmers are for. T. so ausgelegt, daß die Helligkeit so lange steigt (bzw. fällt) wie der Schalter berührt wird. T. designed so that the brightness increases as long as (or decreases) as the switch is touched. Geschwindigkeit und Ver lauf des Regelvorganges sind durch Kondensatoren und/oder Spulen fest gelegt. Ver speed and course of the control process are set by fixed capacitors and / or coils. Eine Variante von Dimmern erlaubt es zwar pulsierendes Licht zu erzeugen, die Frequenz kann dabei jedoch nicht dem Geschmack des Kunden entsprechend eingestellt werden. A variant of dimmers allows you to produce vibrant light, certainly, but the frequency can not the taste of the customers are adjusted accordingly. Um dies zu erreichen wäre ein neuer IC (jeweils) notwendig. To achieve this would be a new IC (respectively) necessary.

Durch die vorgeschlagene Schaltung sollen Lichtspiele ermöglicht werden, indem Gegenstände nicht konstant beleuchtet oder bestrahlt werden, die vielmehr so gestaltet sind, daß sich für den Betrachter über z. The proposed circuit light games are to be made possible in that objects are not constantly illuminated or irradiated, which are rather designed so that, for the viewer on. B mehrere Sekunden hinweg eine sich gleichmäßig zunehmende Helligkeit (Einschaltvorgang) bzw. gleichmäßig abnehmende Helligkeit (Ausschalt vorgang) oder anders modulierte Lichtstärkenänderung ergibt. B several seconds of time a uniformly increasing brightness (turn-) or uniformly decreasing the brightness (stop operation) results or otherwise modulated light intensity change.

Das Schalten kann so eingestellt werden, daß sich die Ein- und Aus schaltvorgänge automatisch wiederholen. The switching may be adjusted so that the on and off switching operations automatically repeat. Dadurch sollen Lichtspiele ermöglicht werden, die bestimmte (weihnachtliche, besinnliche, Disco) Stimmungen unterstützen. This is intended to allow light shows that certain (Christmas, contemplative, disco) support moods. Andererseits kann somit ein hohes Maß an Aufmerksamkeit erzielt werden, wenn Gegenstände nicht kontinuierlich beleuchtet oder bestrahlt werden sondern mit Licht, das in bestimmten Beleuchtungsmustern moduliert ist. On the other hand, thus a great deal of attention can be achieved when objects are not continuously illuminated or irradiated but with light that is modulated in specific illumination patterns.

Claims

1. A lamp is driven by a signal (, etc. bulb, LED) corresponding to the characteristic of the lamp type used ver and delays the same time the switching-on, the customer accordingly and stretched. The drive circuit may be monolithically integrated, or consist of a plurality of chips and is characterized in that the desired course of the driving signal is programmed in a memory before. This can be the memory of a micro controller (.mu.C) or an external memory (eg. B. EPROM). The drive circuit (AS) represents the output, in the desired time, a corresponding signal is available, with the necessary over Pulsweitenmodula tion (PWM) and possibly driver blocks (TB), the lamp is is controlled (Figure 1), and therefore in spite of the above current and time non-linear characteristic of the lamp (bulb, LED, etc.), a uniform swelling (the turn-off: decongestion) of the light intensity it is enough. (Characteristic 1)

2. A circuit arrangement according to claim 1, characterized in that the .mu.C (or discrete) circuit by automatic passage of the (input and) from shifting operation automatically turns on, so that a constant rise and fall is obtained.

3. Circuit arrangement according to claims 1 and 2, characterized in that, simultaneously, possibly with different frequencies and different slopes flanks plurality of lamps are switched.

4. A circuit arrangement as claimed in claims 1 to 3, characterized in that the switch consists and out of the control electronics according to claim 1 to 3 a switched-mechanical switch. The mechanical switch may be configured such that after a delay time (the operation to turn it corresponds to the electronic part (ET), snaps into and through the mechanical switching on the electronic short-circuits in order to avoid losses which would of generate electrostatic African switch due to the Durchlaßverlustes (Figure 2).