Light source composition method by a plurality of luminous units
A light-emitting unit and light source technology, applied in the direction of electroluminescent light source, light source, electric light source, etc., can solve the problem of power supply circuit efficiency drop
Inactive Publication Date: 2009-07-22
埃迪科技(苏州)有限公司
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Problems solved by technology
If a transformer is connected to the input of the power supply circuit or an electronic voltage converter is connected to the output of the power supply circuit to convert the maximum output voltage of the power supply circuit from 311V to the working voltage of the light source LD of 140V to replace the resistor RL for matching, although compared with the connection The power supply circuit with resistance RL will improve the power supply efficiency, but the efficiency of the power supply circuit will also decrease due to the internal resistance of the transformer, eddy current loss, or the loss of electronic components inside the electronic voltage converter.
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[0018] figure 1 It shows a circuit diagram of forming a light source according to the method for forming a light source of the present invention and using the light source to form an example of a lighting device, and image 3 Compared with the circuit diagram of an example of the lighting device in the prior art, the circuit structure of an example of the lighting device of the present invention omits the dropping resistor RL, and the rest of the circuit structure is the same as figure 2 The circuit part is the same. The expression form of the light source LDA includes multiple series-connected light-emitting units. Although the two are the same, the number of series-connected light-emitting units and the internal structure of the two light-emitting units may be different due to the different composition methods of the two light sources. The "serial connection" of multiple light emitting units involved in this article does not exclude the connection of both ends of the light...
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The invention relates to a method which uses a plurality of luminescence units to form a light source, comprising steps: (A) the quantity of the luminescence units is determined according to the following factors; the factors comprise the maximum power supply voltage of a supply circuit and the working voltage of the luminescence units; (B) the setting power of every luminescence unit is determined according to the setting power of the light source and the quantity of the luminescence units determined in the step (A); (C) the luminescence units are manufactured or selected according to the working voltage of the luminescence units and the setting power of every luminescence unit determined in the step (B); (D) the luminescence units obtained in the step (C) are connected in series to form the light source according to the quantity of the luminescence units determined in the step (A). The light source formed by the method can realize the high power supply efficiency under the maximum output voltage of the supply circuit and the light source set with the power can realize the high power supply efficiency under the maximum output voltage of the feed circuit by the same supply circuit.
Description
technical field [0001] The invention relates to a method for constituting a light source, in particular to a method for constituting a light source with a plurality of light emitting units. Background technique [0002] At present, it is widely popular to use multiple light-emitting units with high luminous efficiency, such as multiple light-emitting diodes, to form a light source in series, and then cooperate with a power supply circuit to form an energy-saving lamp lighting device to replace the original incandescent lamp for lighting to achieve the purpose of energy saving. . In the prior art, the composition method of the light source in this type of lighting device is usually as follows: according to the set power of the light source, such as the rated power (such as 15W, 25W, 40W, 60W, 100W in incandescent lamps, etc.) and the selected standard The standard light-emitting unit that weighs the power determines the number of light-emitting units required to form the lig...
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IPC IPC(8): F21S2/00H05B37/00F21Y101/02
CPCH05B33/0812Y02B20/343H05B33/0809H05B45/395Y02B20/30
Inventor 俞志龙
Owner 埃迪科技(苏州)有限公司