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Automatic setting of dimming method

An automatic and automatic technology, applied in the direction of light source, electric light source, electroluminescence light source, etc., can solve the problems of LED lights that cannot be dimmed satisfactorily, limited dimming, etc.

Active Publication Date: 2018-05-15
SIEMENS SWITZERLAND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Dimmable LED lamps cannot be satisfactorily dimmed in trailing-phase operation due to long-term charge storage
The remaining voltage at the input of the lamp therefore strongly limits the dimming

Method used

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  • Automatic setting of dimming method
  • Automatic setting of dimming method
  • Automatic setting of dimming method

Examples

Experimental program
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Embodiment Construction

[0024] The examples described further below are preferred embodiments of the invention. It should be noted here that the individual features can be realized not only in the described feature combinations, but also individually or in other technically meaningful combinations.

[0025] In the example below, the LED lights should be dimmed. The LED lamps represent by way of example any lighting device with a long-term charge storage. The goal is to satisfactorily dim the LED lamp without having to manually set the leading edge phase operation.

[0026] exist figure 1 An exemplary dimming device 4 for power control of a lighting device 1 operated with alternating current is shown in . The dimming device 4 has a phase connection 2 for connection to a phase line L of an alternating voltage system. Furthermore, the dimming device has a load terminal 3 , to which the load (here lighting device 1 ) is connected. The other pole of the lighting device 1 (eg LED lamp) is connected to...

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PUM

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Abstract

The invention relates to automatic setting of dimming methods. Dimming should be improved in the entire range of lighting devices and in particular LED lamps. For this purpose, a dimming device (4) for power control of a lighting device (1) is provided, which has connection means (2, 3) for connecting the lighting device (1) and for operating in the trailing edge phase Operate the controls (5, 6, 7, 8 and 11) of the lighting unit (1). Furthermore, the dimming device has a detection device (9, 10) for detecting a voltage at at least one pole of the connection device (2, 3), wherein the control device (5, 6, 7, 8 and 11) is designed for Therefore, the lighting device (1) is automatically switched from trailing-edge phase operation to leading-edge phase operation on the basis of the detected voltage.

Description

technical field [0001] The invention relates to a method for power control of a lighting device by connecting the lighting device to a connecting device and operating the lighting device in trailing-edge phase operation. Furthermore, the invention relates to a dimming device for power control of a lighting device, which has a connecting device for connecting the lighting device and a control device for operating the lighting device in trailing-edge phase operation. Background technique [0002] Dimmers or dimming devices are used to vary the power of lighting installations. Such a power change can be realized by leading-edge phase control (Phasenanschnittsteuerung) or trailing-edge phase control (Phasenabschnittsteuerung). In the case of leading-edge phase control, the current is switched on with a delay after the zero crossing of the alternating voltage and flows until the next zero crossing. In contrast, with trailing phase control, the current is switched on immediately...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/31H05B39/041Y02B20/00H05B45/14
Inventor W.斯蒂伊格鲍尔
Owner SIEMENS SWITZERLAND