LED layout method applied in LED segment driving circuit
A layout method and a segmented drive technology, applied in the direction of circuit layout, lighting device components, lighting devices, etc., can solve the problems affecting the use effect of lamps, shadows, and shadows in the T8 lamp area, so as to eliminate shadows and ensure Effects of use, effects of increasing the scope of application
Inactive Publication Date: 2015-08-19
SHENZHEN BOYONG TECH
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Problems solved by technology
In the layout structure of the existing LED segmented driving circuit, due to the different light intensity of the LED beads, shadows may exist in some areas in lamps with scattered lamp beads. For example, in lamps with T8 tubes, LEDs are scattered Within the strip-shaped range of 1.17 meters, when the mains voltage is low during the peak period of power consumption, it will cause shadows in some areas of the T8 lamps, which will affect the use effect of the lamps
Method used
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[0025] The present invention will be further described below in conjunction with accompanying drawing and preferred embodiment, see figure 1 As shown, the LED layout method applied in the LED segment driving circuit includes the following steps:
[0026] 1. Calculate the irradiation area of each LED lamp bead according to the relative irradiation light intensity of each lamp bead, the PCB area where the LED lamp beads are arranged, and the number of lamp beads, so that the irradiation light intensity per unit area illuminated by each LED lamp bead Equal, that is, the length that each LED lamp bead is responsible for illuminating; since the width of the PCB area is equal in length, only the length of the PCB area needs to be considered. The relative irradiation light intensity of each LED lamp bead is obtained through simulation testing. The length X (X1...Xn) that each LED lamp bead is responsible for is calculated by the following equation:
[0027] X1+X2+X3+...+Xn=L
[...
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The invention relates to the technical field of LED lamps, in particular to an LED distributing method applied in an LED sectional driving circuit. The LED distributing method includes the steps: A, calculating an irradiated area of each LED lamp bead according to relative irradiating light intensity of each lamp bead, a PCB (printed circuit board) area for the LED lamp beads to be distributed and the number of the lamp beads, and enabling the irradiating light intensity in unit area of each LED lamp bead to be identical to that of the others, namely enabling each LED lamp bead to be in charge of irradiating length; B, calculating distance between each two adjacent LED lamp beads; and C, distributing the LED lamp beads on the PCB area. By the LED distributing method, the most suitable distance between each two adjacent LED lamp beads is reached, and the irradiating light intensity in unit area of each LED lamp bead is enabled to be identical to that of the others, so that shadow in a lamp is eliminated, use effect of the lamp is guaranteed, and application range of the LED sectional driving circuit is widened.
Description
Technical field: [0001] The invention relates to the technical field of LED lamps, in particular to an LED layout method applied in an LED segment drive circuit. Background technique: [0002] LED is a semiconductor light-emitting device, which is widely used as indicator light, display screen and so on. White LED is known as the fourth-generation lighting source to replace fluorescent lamps and incandescent lamps. LED has changed the principle of tungsten filament luminescence of incandescent lamps and three-based toner luminescence of fluorescent lamps. It uses electric field luminescence and has the advantages of high luminous efficiency, no radiation, long life, low power consumption and environmental protection. A traditional way to form a white light LED is that a blue light or ultraviolet chip excites the phosphor attached to the chip, and the light emitted by the chip under electric drive stimulates the phosphor to produce visible light in other bands, and each part...
Claims
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IPC IPC(8): F21V23/00F21Y101/02
Inventor 李芳芳齐良颉杨金象
Owner SHENZHEN BOYONG TECH