LED illumination system and linear power supply thereof

A technology of LED lighting and linear power supply, applied in the field of LED lighting, which can solve the problems of low conversion efficiency, large volume and weight of filter capacitors, and large power consumption of adjustment tubes, and achieve low cost, low self-consumption, and obvious contrast effects

Inactive Publication Date: 2011-01-05
薛伟达 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its disadvantage is that it requires a huge and heavy transformer, and the volume and weight of the required filter capacitor are also quite large, and the voltage feedback circuit is working in a linear state, and there is a certain voltage drop on the adjustment tube, and the output is relatively large. At this time, the power consumption of the adjustment tube is too large, the conversion efficiency is low, and a large heat sink must be installed

Method used

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  • LED illumination system and linear power supply thereof
  • LED illumination system and linear power supply thereof
  • LED illumination system and linear power supply thereof

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Embodiment Construction

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments. It should be pointed out that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] Firstly, the linear power supply of the embodiment of the present invention will be introduced.

[0030] Such as figure 1 As shown, in the linear power supply according to the first embodiment of the present invention, the primary winding of the transformer is connected to the common commercial power. The secondary winding of the transformer adopts a full-wave asymmetric winding method, such as figure 1 As shown, the two coils of the secondary winding on both sides of the tap have different turns and wire diameters, which can reduce self-consumption and compensate for the ext...

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Abstract

The invention discloses an LED illumination system and a linear power supply using the illumination system. The LED illumination system comprises a plurality of LED units, at least one power supply used for supplying the power to the plurality of LED units and a power supply line of the plurality of LED units which are connected with the power supply. The LED illumination system is characterized in that the power supply is the linear power supply which has the output voltage of 160-220V, the plurality of LED units are a high-voltage LED light source with the work voltage of 160-220V, the linear power supply simultaneously supplies the power to the plurality of LED units through the power supply line, and the output power of the linear power supply is adapted to the power of the plurality of LED units. The LED illumination system and the linear power supply have the advantages of low cost, little self consumption, good energy saving effect and low reformation cost when utilizing an existing line.

Description

technical field [0001] The invention relates to the field of LED lighting, in particular to an LED lighting system and a linear power supply for providing electric energy to LED units of the lighting system. Background technique [0002] LED (Light Emitting Diode) is a solid-state semiconductor device that can convert electrical energy into visible light, and it can directly convert electricity into light. Due to the advantages of easy control, low-voltage DC drive, rich color expression after combination, and long service life, it is widely used in various fields. [0003] In the field of general lighting, LED can adopt partial lighting, decorative lighting, contour lighting, etc., and is widely used in lighting or signs of commercial or comprehensive facilities such as shopping malls, supermarkets, hotels and restaurants; With the characteristics of energy saving, long life, maintenance-free, and small size, it is gradually applied to the fields of indicator lights in tun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/00
CPCY02B20/40
Inventor 薛伟达张纪元黄志超
Owner 薛伟达
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