Talking about the new profit growth point of the LED industry in 2017, the AC LED linear module will inevitably escape.
Relevant industry insiders revealed to Gaogong LED that because of its integration of light source + power + line + radiator, the design is more space-saving, and the market acceptance is slowly improving.
It is understood that the current market share of AC LED linear modules is about 5%, and there is expected to have a 20% growth potential in the future, which undoubtedly brings huge business opportunities to downstream lighting companies.
The linear scheme is mainly applied to two fields, one is a bulb lamp; the other is a light source product, and other areas except the outdoor high-power integration part are not large, and the prospect is broad.
Compared with the traditional DC driver in the past, the advantages of the AC LED module linear high voltage scheme are mainly reflected in several aspects:
1, long life, no need to input and output electrolytic capacitors, electrolytic capacitors have life limitations, its life is the bottleneck of power life, linear high voltage solution does not require electrolytic capacitors, greatly extending the life of AC LED modules.
2, low cost, no external drive power, greatly saving lighting materials, installation and maintenance, logistics and storage costs.
3, high efficiency and low loss, the same output power, the driving current required for the high voltage AC LED lamp bead is lower than the low voltage DC LED lamp bead driving current.
For example, the high voltage lamp bead 5730 1W LED lamp bead has a forward voltage drop of up to 75V. It can output 1W power with only 13mA input current, while the normal forward voltage is 3V 1W LED lamp bead, which requires 350mA input current. Output 1W power.
Therefore, the high-voltage LED lamp bead of the same output power dissipates much less power during operation than the low-voltage LED lamp bead.
4, no EMC electromagnetic interference, power frequency linear mode to replace the high frequency mode, no high frequency inductance, no EMI problems, no EMC circuit.
5, flexible design, integrated module, no external driver, the structure of the supporting lamps is simpler.
The person in charge of Jingke Electronics said, "We are now working with some companies to make linear ICs develop in a more functional direction, guiding finished products to be more benign competition, and ensuring the quality of products is the king of enterprise survival, and cannot be sacrificed for price. quality."
It is true that many companies in the market have tried to cut corners in order to save costs. For example, eliminating the pressure and heat resistance of ICs, including the necessary steps in the packaging process of ICs, such behavior should not be .
Although the prospects are good, today's AC LED linear module market has not really opened up, Stoudemire marketing director Zhang Luhua believes that "due to the characteristics of linear power supply, it is susceptible to voltage fluctuations."
Zhang Luhua also said, "One is that the linear solution is not mature compared to the current mainstream solution, and it needs to be tested by the market. Second, in the current domestic market, as long as the supply solution, the downstream lighting companies can complete their own, irrelevant packaging. Enterprises (packages are mainly light sources, and linear modules are mainly patch circuit design, which is an integrated module, which was originally a lighting enterprise)."
But this did not hinder some companies' investment in linear solutions.
“The downstream acceptance is getting higher and higher. Linear modules have customized designs for 3w, 5w, 7w, etc. Now the overall application scale of the market needs to be expanded, and the market demand explosion is only a matter of time.†Zhuo Nip The relevant person in charge said.
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