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lighting device

The technology of a lighting device and a voltage conversion circuit is applied to a desk lamp. It can solve the problems of increasing the cost of desk lamps, etc., and achieve the effects of long life, green environmental protection and high light efficiency.

Inactive Publication Date: 2017-06-16
OSRAM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Each LED desk lamp needs to be equipped with a power adapter separately, which increases the cost of the desk lamp

Method used

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Embodiment Construction

[0020] figure 1 A schematic diagram of a first embodiment of a lighting device 100 according to the present invention is shown. It can be seen from the figure that the lighting device 100 according to the present invention is powered by a power adapter 3 for a notebook computer, wherein the lighting device 100 includes a light source 1, and in this embodiment, the light source 1 is composed of a plurality of LED chips connected in series. In addition, the lighting device 100 according to the present invention further includes a voltage conversion circuit 2 , the input end of the voltage conversion circuit 2 is connected to the power adapter 3 , and the output end of the voltage conversion circuit 2 is connected to the light source 1 . According to the design solution of the present invention, the voltage conversion circuit 2 can convert the voltage output by the power adapter 3 of a notebook computer that is not specially designed for the lighting device 100 into the working v...

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Abstract

The present invention relates to a lighting device (100) for supplying power through a power adapter (3) of a notebook computer. The lighting device (100) includes a light source (1), wherein the lighting device (100) also includes a voltage conversion circuit (2) , the input end of the voltage conversion circuit (2) is connected to the power adapter (3), the output end of the voltage conversion circuit (2) is connected to the light source (1), and the voltage conversion circuit (2) converts the predetermined range of the power adapter (3) The rated output voltage (V out ) to the operating voltage of the light source (1) (V LED ).

Description

technical field [0001] The invention relates to a lighting device for supplying power through a power adapter of a notebook computer, in particular to a desk lamp. Background technique [0002] At present, notebook computers are very commonly used in modern life, and they also use power adapters to power them. This power adapter is an isolated system and a safe low-voltage circuit. Its output voltage is absolutely safe for users. . Some users also usually equip their laptops with multiple power adapters in different places. However, when the laptop is broken or used to upgrade the laptop to a new computer, these power adapters are useless, which is obviously a waste. [0003] At the same time, a large number of desk lamps using LED chips as light sources appear on the market. However, when the LED desk lamp is working, it is necessary to convert the mains power into a working voltage suitable for the LED chip, for which a power adapter needs to be designed separately. Ea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02H02M3/155
Inventor 陈少屏曾军华徐志喜张宏伟
Owner OSRAM GMBH