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Method, operating device and lighting unit for operating a lighting device

A light-emitting device and operating device technology, applied in lighting devices, electroluminescent light sources, light sources, etc., can solve problems such as large filters

Active Publication Date: 2021-06-22
TRIDONIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] According to the prior art, operating devices for lighting devices with power factor correction have been used, but these still require relatively large filters at the input

Method used

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  • Method, operating device and lighting unit for operating a lighting device
  • Method, operating device and lighting unit for operating a lighting device
  • Method, operating device and lighting unit for operating a lighting device

Examples

Experimental program
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Embodiment Construction

[0011] The invention will be explained below with reference to an exemplary embodiment of an operating device for a lighting device.

[0012] figure 1 An operating device A for a lighting device is shown.

[0013] Such an operating device A for lighting devices generally has: a driver circuit (lamp driver) for operating at least one lighting device (load); an energy store feeding the driver circuit; a power factor correction circuit (PFC), It can take the form of a boost converter and feeds the energy storage, the power factor correction circuit has a storage inductor, an active clocked switch and a rectifying diode. The filter circuit and the rectifier circuit are preferably connected upstream of the power factor correction circuit. In this example, the driver circuit is a resonant half bridge used to actuate a lamp load. Alternatively, the driver circuit can also be formed by a resonant half-bridge with galvanic isolation and rectification at the output for actuating the ...

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PUM

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Abstract

Method, operating device and lighting unit for operating a lighting device, wherein the lighting device is operated by at least one driver circuit, the power factor correction circuit feeds the energy storage, and the energy storage feeds the driver circuit, characterized in that , the voltage at the energy storage part is monitored, and the level of the current output to the light emitting device depends on the detected ripple of the voltage at the energy storage part, wherein when the detected ripple of the voltage at the energy storage part exceeds a predetermined When the limit value is reached, the operation of the light emitting device by the driver circuit is increased.

Description

technical field [0001] Such operating devices are used in lighting systems in order to illuminate rooms, routes or escape routes. Usually in this case the lighting means are actuated and, if necessary, activated by the operating means. For such illumination, gas discharge lamps or light emitting diodes (LEDs) are used as light sources. Background technique [0002] According to the prior art, operating devices for lighting devices with power factor correction have been used, but these still require relatively large filters at the input. Contents of the invention [0003] It is an object of the present invention to provide an operating device for lighting means which has power factor correction and transmits only a very low level of interference. [0004] The invention relates to an operating device (A) for lighting devices having at least one driver circuit for operating at least one lighting device, an energy store feeding the driver circuit, a power factor correction c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B45/355H05B45/385H05B45/38H05B44/00
CPCH05B45/355H05B45/39H05B45/385H05B45/375H05B45/38
Inventor 林耀烽邹志宏林军祥钟国基
Owner TRIDONIC