Light-emitting diode (LED) module based on high-voltage constant current technology

Abstract

The invention discloses a light-emitting diode (LED) module based on a high-voltage constant current technology. The LED module comprises a constant current module, a high-voltage direct current stabilized power source which is connected with an input end of the constant current module and an LED lamp set which is connected with an output end of the constant current module, wherein the constant current module comprises an injection outer shell and a constant current circuit board which is totally coated by the injection outer shell. The constant current circuit board comprises a second printed circuit board (PCB) and a constant current circuit which is installed on the second PCB. The constant current circuit comprises two LC1912 triodes and a fast-recovery voltage stabilizing diode SS14, wherein the two LC1912 triodes are connected in parallel, and the fast-recovery voltage stabilizing diode SS14 is connected with a parallel branch of the two LC1912 triodes in series. A collector electrode of each LC1912 triode is connected with a resistor. An input end of the constant current circuit is connected with the high-voltage direct current stabilized power source, and the output end of the constant current circuit is connected with the LED lamp set. The LED module based on the high-voltage constant current technology is capable of achieving uniform luminescence of all LED lamps and improving whole performance of the LED module, and has high practical value and promotional value.

Description

[0001] technical field [0002] The invention relates to an LED lamp group, in particular to an LED module based on high voltage constant current technology. Background technique [0003] In recent years, the LED advertising sign industry has achieved rapid development. With the rising awareness of global energy conservation and the background of relatively high electricity prices compared with traditional light sources, LED light sources continue to be introduced into commercial, architectural, and advertising signage fields. As a branch of LED advertising signs, a kind of LED outdoor luminous characters has many advantages such as beautiful in the daytime, bright in the night, energy saving, durable and so on. The core of this outdoor advertising luminous word project lies in the LED module system. [0004] At present, the LED module light source of outdoor advertising luminous characters mainly uses straw hat LED lights as the light source, which mainly has the followin...

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Problems solved by technology

[0009] The purpose of the present invention is to provide an outdoor advertising light-emitting character LED module, which mainly solves the problem in the prior art that the power transmission distance is limited due to low driving voltage, which causes the increase of power supply cost, and the non-constant current power supply technology makes LED Problems with poor uniformity between lamps

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