WO2011107280A2

WO2011107280A2 - Controllable operational device for light-emitting diodes

Info

Publication number: WO2011107280A2
Application number: PCT/EP2011/001049
Authority: WO
Inventors: Dominique Combet; Roger Kistler; Markus Künzli; Reto Sprenger; Dominik ZÜGER; Patrick KÜHNE
Original assignee: Tridonic Ag
Priority date: 2010-03-03
Filing date: 2011-03-03
Publication date: 2011-09-09
Also published as: WO2011107280A3; DE112011100736A5

Abstract

The invention relates to an operating device (BG1) for illuminating means, in particular a light-emitting diode, comprising an interface connection for capturing probe signals (TS) or potentiometer control signals (PS) via an inlet connection (K) and a zero potential connection (In2), also comprising an internal voltage source (SQ) which feeds the inlet connection (K). Said probe signals (TS) are produced by means of a probe (Tst.) which short-circuits or disconnects both connections of the interface during the actuation thereof.

Description

Controllable operating device for light-emitting diodes

The invention relates to a method for controlling at least one operating device for lighting means,

in particular LED, according to the preamble of

Patent claim 10 and operating device for lighting means having an interface for receiving control commands via a control line according to the preamble of

Patent claim 1.

Technical area

Such methods are used to control

Operating equipment used for lighting and are used in lighting systems to switch on and off bulbs using a central control unit and adjust the brightness. Usually, the bulbs are driven by operating devices. The operating devices are grouped together and can be from one or more central

Control units are controlled. With the term

Lamps are both gas discharge lamps as well as halogen lamps or light emitting diodes (LED) called. Such a light source can be arranged individually or together with other light sources in a luminaire, which may also contain the operating device.

State of the art

In modern lighting systems are often by the central control unit digital control commands to the

Operating devices sent.

CONFIRMATION COPY Through these external control commands can be

Specify brightness values, in particular, in order to achieve different illumination states. The control gear may be provided with ^'an address to allow a single or group-wide control by the central control unit.

A widespread control method is the

Control of lighting systems according to DALI (Digital Addressable Lighting Interface) standard. This standard defines an interface and a transmission format for the digital control of operating devices, whereby addresses can be assigned for the individual operating devices. The operating devices can be connected via the external

Control commands on and off or in the

Brightness can be controlled, also a special operating condition such as an emergency lighting state can be initiated and error messages are queried. The control according to the DALI standard requires a considerable amount of programming when installing a lighting system and additional control devices are required. A change or adaptation of such a lighting system means a lot of effort in the implementation by the user. It must be so too

Customers, in particular the luminaire manufacturers and the professionals installing and commissioning such lighting systems, must comply with the relevant standard

have to be trained and meet the relevant requirements. Through the use of new light sources such as light emitting diodes there are many possible applications of

Lighting systems, such as a

Effect lighting.

There is also a need today for flexible and easily controllable operating devices, in particular for light-emitting diodes.

Presentation of the invention

It is the object of the invention to provide a method

to provide the control of

Operating devices by a control unit without the disadvantages mentioned above or under a clear

Reduction of these disadvantages allows.

This object is achieved for a method according to the invention by the characterizing features of claim 10 and for a generic device according to the invention by the characterizing features of claim 1. Particularly advantageous embodiments of the invention are described in the subclaims.

The inventive solution for controlling

Operating equipment is based on the idea that the

Operating device for illuminants, in particular light emitting diodes, an interface with terminals for receiving

Has push-button signals or potentiometer control signals via an input terminal and a zero potential terminal. The operating device has an internal voltage source that feeds the input terminal, wherein the probe signals are generated by means of a button that short-circuits or interrupts the two ports of the interface when actuated.

In this way it is possible to have both push button signals and potentiometer control signals over one

Receive input connection of the interface of the operating device.

According to a particularly preferred embodiment, the interface can detect from the applied voltage at the input terminal whether a probe signal or a potentiometer control signal is received.

According to a particularly preferred embodiment, the button signal can be evaluated via a temporal evaluation of the duration of the actuation of the button.

A control command transmitted by means of a control signal is according to the invention not just a switch-on command,

Off command or new brightness value that can be transmitted to an operating device, but may also contain advanced information.

In particular, a color information or a

Color command, an address, a state information or an error signal are transmitted as a control command. The invention also relates to a lighting system with at least one operating device for operating light sources, wherein at least one operating device has an interface according to the invention.

The invention also relates to an operating device of lighting means which can be operated in a step mode with two different brightness values via a switch which is connected to one of the connections. Preferably, the switch is connected to the input terminal. Preferably, in the step mode, the lighting means is driven with a first brightness value when the switch is closed and with a second brightness value when the switch is open.

According to a particularly preferred embodiment, the operating device can monitor the voltage at the input terminal via its interface and detect the type of transmitted signals on the basis of the detected voltage.

According to a further preferred embodiment, the operating device may also receive digital control signals, wherein preferably the operating device based on the

received signals can independently recognize what kind of transmitted signals.

The invention also relates to a method for

Brightness control for a control gear for

Light-emitting means, in particular light-emitting diodes, having an interface with terminals for receiving push-button signals or potentiometer control signals via an input terminal and a zero-potential terminal, characterized by the following steps: Feeding the input terminal by means of an internal voltage source via a resistor,

Measuring a voltage at the input terminal,

Evaluating the voltage at the input terminal,

Select the receive mode to receive either probe signals or potentiometer control signals through an input connector.

Description of the preferred embodiments

The invention will be explained in more detail with reference to the accompanying drawings. Show it:

Fig. 1 is a control of the invention

Operating device via a push-button

Fig. 2 is a control of the invention

Operating device via a potentiometer Fig. 3 shows a first embodiment of

inventive interface

Fig. 4 shows the possible signal levels according to the invention

Embodiment of an operating device for an LED explained. However, the present invention can be applied to all types of lighting apparatus.

The application is quite different

Lamps possible, it can in particular inorganic or organic light-emitting diodes, as well as

Gas discharge lamps or halogen lamps are used. The operating device BGI shown in ^'Fig. 1 and Fig. 2 controls, in this example to more than one light emitting diodes LEDL, LED2 and LED3. The operating device BG1 is connected to a voltage supply via the connections Inl and In2 and receives the energy required for operating the luminous means. This power supply can be a

Be DC or AC voltage. The

Light-emitting diodes LED1, LED2 and LED3 are connected to the operating device BG1 via the connections Outl and Out2.

In particular, the operation of the light-emitting diodes LED1, LED2 and LED3 is controlled and monitored, in particular also regulated. In particular, the operating device BG1 controls the operation of the light-emitting diodes LED1, LED2 and LED3, in particular the brightness. The operating device BGL can also be the

Task of correct current consumption from the

Take over power supply network, which by the

Provisions of the energy supplier may be specified. This task can be as sinusoidal as possible power consumption with as few high-frequency

Disruptions affect. The operating device BG1 can therefore be a so-called filter for avoiding high-frequency

Interferences that can either come from the power supply network or were generated by the operating device BGL itself, as well as a circuit for active

Power factor correction included. It also provides that

Operating device BGL as already mentioned the proper operation of the LEDs LEDl, LED2 and LED3 safe.

In particular, it can adjust or regulate the current and / or the voltage through the LEDs LED1, LED2 and LED3. In a particular embodiment, the operating device BGL can also be designed as a multi-stage converter in order to divide the various tasks of the individual stages of the operating device BGL. Advantageously, the correct current consumption from the power supply network is ensured by a stage, a subsequent stage controls the operation of the LEDs LED1, LED2 and LED3. The power supply can be a low-frequency AC voltage with a voltage of 230V or a DC voltage of 24V. Depends on the type of

Power supply network, the operating device BGL can be designed as a DC-DC converter or AC-DC converter. In a particularly advantageous embodiment, the operating device BGL may include an energy store, which may be formed by a storage capacitor or a rechargeable battery.

The operating device Bl can be part of a

Be lighting system.

The operating device Bl also has an interface. The interface is with the control line

connected. The interface has connections to the

Receiving push-button signals (TS) or potentiometer control signals (PS) via an input connection (K) and a zero potential connection (In2).

In Fig. 1, the connection of a button and in Fig. 2, the connection of a potentiometer (Pot.) To the

Input terminal (K) shown. Preferably, the probe signals (TS) by means of a button (Tst.) Are generated, which short-circuits the two ports of the interface when actuated or

interrupts. The pushbutton signal (PS) can be evaluated via a chronological evaluation of the duration of the pushbutton actuation (Tst.).

In Fig. 3, the interface is shown in a preferred embodiment. It preferably has an internal voltage source (SQ), which the

Feed input terminal (K).

The internal voltage source (SQ) may be formed by a voltage source integrated in an integrated circuit, but it may also be formed by a clocked switching regulator, for example a buck converter or an isolated flyback converter, or by a simple voltage feed, such as a capacitor, which is fed via a charging circuit from the operating device.

The voltage at the input terminal (K) can be used for

Signal evaluation are monitored. Based on the applied voltage at the input terminal (K), it can be detected whether a button signal (TS) or a potentiometer control signal (PS) is received.

The voltage source (SQ) and the input terminal (K) can be connected via a resistor (Rv) so that when connecting a potentiometer (Pot.) To the

Input terminal (K) through the resistor (Rv) and the potentiometer (Pot.) A voltage divider is formed. The operating device (BG1) may have a control unit which monitors the voltage at the input terminal (K) for signal evaluation, preferably by means of an analog-to-digital converter (A / D).

FIG. 4 shows possible advantageous voltage levels for the signal evaluation of the voltage at the input terminal (K). If the resistor (Rv) and the potentiometer (Pot.) Have the same resistance value (for example, 100 kOhm), then there is a voltage divider, at the midpoint of which half the supply voltage of the internal voltage source (SQ) is applied. The center of the

Voltage divider is as shown in Fig. 3 on

Input connection (K). This results in this

Example of the maximum resistance of the

Potentiometers (Pot.) A voltage of about 2.5 V am

Input connection (K). When the resistance of the

Potentiometer (Pot.) Is reduced, also reduces the voltage at the input terminal (K). This voltage (the applied voltage potential) can be used as

Potentiometer control signal (PS) are evaluated and the LEDs LED1, LED2 and LED3 are controlled accordingly. Preferably, as the resistance of the potentiometer (Pot.) Decreases, so does the brightness of the

LEDs LED1, LED2 and LED3 reduced.

If, however, a push button (Tst.) Is connected to the input connection (K) as in the example of FIG. 1, the supply voltage of the internal voltage source (SQ) at the input connection (SQ) is not actuated (Tst.), Ie open pushbutton (FIG. K) (so 5V is on, because the resistor (Rv) works like a pull-up resistor). When the pushbutton (Tst.) Is closed (ie actuated), the input terminal (K) is connected to the zero potential terminal (In2) and a voltage of OV is applied to the input terminal (K).

In this case of the actuated button (Tst.) Falls the

Supply voltage of the internal voltage source (SQ) across the resistor (Rv) from. Thus, a change occurs between a high potential and a low potential at the input terminal (K).

As already mentioned, the pushbutton signal (PS) can be evaluated via a temporal evaluation of the duration of the actuation of the pushbutton (Tst.). A brief press of the button (Tst.) Can be detected as an on or off signal, while with a longer operation of the button (Tst.) The time can be used as a default for the strength of the desired brightness change. However, as already mentioned, it is also possible, for example, to make a color change (also a change in the color temperature) via the received signals.

In addition, digital control commands can also be received via the interface, as an alternative to the push-button signals. The digital control commands as well as the button signals by means of a temporal

Evaluation be detected, since here also between a high potential and a low potential at

Input terminal (K) takes place. In addition or alternatively, the operating device can be operated in a step mode with two different brightness values via a switch (SW) which is connected to one of the connections. Preferably, the switch (SW) is connected to the input terminal (K). The switch (SW) can also be in a

Supply line may be interposed (i.e., it is connected to the terminal Inl) or else in a feed line for the LEDs LED1, LED2 and LED3 be interposed (i.e., it is connected to the terminal

Out2 connected). In the step mode, the light source with a closed switch (SW) with a first

Brightness value and when the switch is open (SW) with a second brightness value to be controlled. The first brightness value is preferably the maximum brightness value and the second brightness value is a relatively low brightness value. However, the second brightness value can also mean that the light-emitting diodes LED1, LED2 and LED3 are switched off (ie brightness value zero). However, it is also possible that the two brightness values are controlled in the opposite way (i.e., the high brightness when the switch is open).

In the step mode, the change between the two brightness values can also take place with one or two different predetermined transitional ramps. In particular, the durations for these transitional ramps can also be predetermined. For example, the change from the low to the high brightness value can be made with a steep transitional ramp (i.e., a rapid change in brightness occurs within a relatively short time, so that the high brightness value is reached as quickly as possible), during the

Change from the high to the low brightness value can be done with a flat transition ramp (ie within a relatively long time there is a uniform and slow change in brightness, so that the low Brightness value is achieved by a perceived as gentle brightness change for the viewer).

The switch (Sw), for example, as a

Motion detector (which interrupts the line), a timer, a relay or a manual to

be actuated switch.

Thus, a method for controlling the brightness of an operating device (BG1) for lamps, in particular light emitting diodes, allows, wherein the operating device (BG1) an interface with terminals for receiving probe signals (TS) or potentiometer control signals (PS) via an input terminal (K) and a zero potential terminal (In2) and the following

Steps can be taken:

Feeding the input terminal (K) by means of an internal voltage source (SQ) via a resistor (Rv),

Measuring a voltage at the input terminal (K),

Evaluating the voltage at the input terminal (K),

Select the receive mode to receive either probe signals (TS) or potentiometer control (PS) signals through an input connector (K).

As already mentioned, a brightness change or, for example, a color change (also a change in the color temperature) over the received signals can be made possible by means of the method according to the invention.

As already mentioned, the pushbutton signal (PS) can be evaluated via a temporal evaluation of the duration of the actuation of the pushbutton (Tst.). The potentiometer control signal can be based on the applied voltage potential

be evaluated and the LEDs LED1, LED2 and LED3 are controlled accordingly.

Claims

Claims :

1. operating device (BG1) for illuminants, in particular a light-emitting diode,

having an interface with connections to

Receiving push-button signals (TS) or potentiometer control signals (PS) via an input terminal (K) and a zero-potential terminal (In2),

comprising an internal voltage source (SQ), which feeds the input terminal (K), characterized in that the probe signals (TS) by means of a button (Tst.) Are generated, which short-circuits or interrupts the two ports of the interface when actuated.

2. operating device (BG1) according to claim 1,

characterized,

that the voltage at the input terminal (K) to

Signal evaluation is monitored.

3. operating device (BG1) according to claim 1 or 2,

characterized in that

the button signal (PS) is evaluated via a temporal evaluation of the duration of the actuation of the button (Tst.).

4. operating device (BG1) according to one of claims 1 to 3, characterized in that

is detected by the voltage applied to the input terminal (K), whether a button signal (TS) or a

Potentiometer control signal (PS) is received.

5. operating device (BG1) according to one of claims 1 to 4, characterized

that in addition also digital control commands over the

Interface can be received.

6. operating device (BG1) according to one of claims 1 to 5, characterized

in that the voltage source (SQ) and the input terminal (K) are connected via a resistor (Rv) and at

Connection of a potentiometer (Pot.) To the

Input terminal (K) through the resistor (Rv) and the potentiometer (Pot.) A voltage divider is formed.

7. Operating device (BG1) according to one of the preceding

Claims, characterized

that the operating device in addition via a switch (SW) connected to one of the terminals, preferably with the

Input terminal (K), is connected, in one

Step mode can be operated with two different brightness levels.

8. operating device (BG1) according to claim 7, wherein in the

Step mode with switch closed (SW) the

Light source with a first brightness value and with open switch (SW), the light source is driven with a second brightness value.

9. operating device (BG1) according to one of claims 1 to 8, wherein the operating device comprises a control unit which monitors the signal to the evaluation of the voltage at the input terminal (K), preferably by means of an analog-to-digital converter (A / D).

10. Method for brightness control for a

Operating device (BG1) for light sources, in particular

Light emitting diodes, having an interface with

Terminals for receiving push-button signals (TS) or potentiometer control signals (PS) via a

Input terminal (K) and a zero potential terminal (In2), characterized by the following steps:

Measuring a voltage at the input terminal (K),

Evaluating the voltage at the input terminal (K),

Select the receive mode to receive either probe signals (TS) or potentiometer control (PS) signals through an input connector ().