Introduce the circuit architecture of the LED point light source module

There are many types of LED point light source modules. The LED modules described in this article are also called LED modules used in LED displays. There are many types, and new products are constantly being introduced. In terms of circuit structure, performance parameters, and packaging Each has its own advantages in terms of form protection level and so on. The following editor will introduce the circuit structure of various LED modules currently on the market for your reference when choosing and judging the quality and usage.

The term module, in the sense of electrical engineering, refers to an integrated modular component that has the same circuit and structure, and has the same electrical characteristics and functionality. Broadly speaking, LED lamp beads, LED modules (modules), LED display components, and even LED street lights are all called LED modules.

For example, LED lamp beads, which are called LED point light source modules abroad, are a packaged high-brightness light-emitting diode module, which can be grouped into electronic components; LED module light source is a combination of several A miniature light source module in which a LED lamp bead is connected through a circuit and encapsulated on a structure can be grouped into a simple miniature LED lamp; the LED display assembly is to control a large number of LED lamp beads in a dot matrix layout. The modular component connected with the drive circuit and encapsulated with the housing is an LED display unit with signal and power supply ports; LED street lights are modules that assemble many high-power LED lamp beads together with constant current sources in the housing Chemical components, a large-scale integrated LED luminaire that provides road lighting.

Powerful Jucai Introduction LED modules are widely used in advertising signs, decoration, lighting and lighting occasions. Different use occasions require different structural types. Below are photos of several commercially available LED modules (some photos are from Baidu pictures):

The LED point light source module was born at the beginning of this century. It is a kind of miniature lighting product formed after the light effect of LED light source, especially white light source, exceeds the effect of incandescent light. ( effect: the efficiency of converting electrical energy into light energy, unit lm/w). LED modules can be said to be an earlier application of LEDs for lighting. With the advancement of LED chip and lamp bead packaging technology, the luminous efficiency of LED has increased greatly in recent years. At present, the level of foreign laboratories has reached nearly 400lm/w! It has far exceeded the luminous efficiency of all current electric light sources.

Due to the different durability and cost-effective requirements of the LED lighting products currently on the market, the general luminous efficiency is between 80~150lm/w. The pursuit of high luminous efficiency places extremely high requirements on LED lamp chip and lamp bead packaging technology, as well as lamp design materials, and the price is also extremely high, and the cost performance is lower.

LED point light source module is a kind of miniature lamp. As a lamp, it must be composed of electric light source, circuit structure form, shell and assembly form, power supply port and other parts. The quality and performance are also affected by these parts. Decided.

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