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Self-adjusting lighting driver for driving a lighting source and lighting unit comprising the self-adjusting lighting driver

A lighting driver and driving current technology, applied in lighting devices, light sources, electric light sources, etc., can solve the problems of complicated and expensive on-site maintenance or replacement of lighting drivers

Active Publication Date: 2016-11-30
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, field repair or replacement of lighting drivers becomes more complicated and expensive if there are a large number of different lighting drivers, each corresponding to a specific LED lighting unit with a specific number of LEDs and LED modules
[0009] Another issue with LED-based lighting units involves temperature

Method used

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  • Self-adjusting lighting driver for driving a lighting source and lighting unit comprising the self-adjusting lighting driver
  • Self-adjusting lighting driver for driving a lighting source and lighting unit comprising the self-adjusting lighting driver
  • Self-adjusting lighting driver for driving a lighting source and lighting unit comprising the self-adjusting lighting driver

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Embodiment Construction

[0054] As discussed above, it is not desirable to have to manufacture, inventory, and provide different lighting drivers for different LED-based lighting units according to the number of LED modules included in the different units. It is also undesirable that the LEDs in LED-based lighting units operate at excessively high temperatures, which would reduce the lifespan of the LEDs.

[0055] Therefore, the present inventors have recognized and realized that it would be advantageous to provide the following driver, which can be installed in a variety of LED-based lighting units in which the number of LEDs varies greatly and the LED modules are included , And the lighting unit can be manufactured in the factory without the need for special equipment and personnel with special knowledge and skills to program the lighting driver. The inventors have also realized that it would be beneficial to provide a lighting driver that can reduce the current provided to the LED when the temperature...

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PUM

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Abstract

A lighting unit (100) includes a light emitting diode (LED) module (120, 300) and a lighting driver (110, 200) connected to the LED module. Each LED module includes an LED (323) and an identification current source (324) providing an identification current to an identification current output node (180, 380). All identification current output nodes are connected together to provide a total identification current having a magnitude that varies in response to the number of LED modules connected to the lighting driver. The lighting driver includes: a controllable current source (220 & 250), which is used to provide LED driving current to the LED of the LED module; and a controller (230), which responds to the total identification current to control the controllable current source in response to The magnitude that varies with the number of LED modules connected to the lighting driver provides the LED drive current.

Description

Technical field [0001] The present invention generally relates to a lighting driver for driving one or more light sources, particularly light emitting diode (LED) light sources, and a lighting unit including the lighting driver. More specifically, the various inventive methods and devices disclosed herein relate to a self-adjusting lighting driver for driving one or more light-emitting diode (LED) light sources, and an LED-based lighting unit including the self-adjusting lighting driver. Background technique [0002] Lighting based on semiconductor light sources such as light-emitting diodes (LEDs) provides a viable alternative to traditional fluorescent, HID, and incandescent lamps. The functional advantages and benefits of LEDs include high energy conversion and optical efficiency, longer life expectancy, lower operating costs, and more. [0003] In some applications, the LED-based lighting unit may include a lighting driver that provides LED driving current to multiple LED modu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B33/08
Inventor T·C·凡博德格雷文
Owner SIGNIFY HLDG BV