No drive technology is expected to become the mainstream of LED lighting market within 3-5 years

Drive power has always been an integral part of LED products . It provides the energy needed for energy-saving luminaires to illuminate electrical energy and related components in a computer . It is an essential part of LED product luminescence. However, a non-driven technology is now on the market, which not only reduces the chances of the drive causing product failure, but also greatly enhances the continuity and stability of the product.

Through investigations, we have reason to believe that non-driven technology as a new technology is the inevitable result of industry development. Today, with the homogenization of products, constant price wars and increasingly fierce competition, non-driven technology is likely to become a weapon to break the vicious circle of bad competition, and it may also become a catalyst to promote the replacement of traditional technology.

When was the no-drive technology born?

Seoul Semiconductor is the first to develop and produce. It has been 9 years old.

Drive-free technology is not without a driver. It is actually driven. It just makes new technological innovations on the drive, making it more efficient, smaller, and less expensive.

The terminology of driveless technology in the industry is AC LED, which is an LED lighting technology that can be directly plugged into 220V (or 110V) AC without the need for AC/DC conversion compared to conventional DC LEDs. The key to the AC LED light source is the special arrangement and combination technology of the LED die during packaging. At the same time, the diode characteristics of the LED PN junction are used as rectification, and multiple die are integrated on a single chip through a semiconductor fabrication process, that is, a high power single. Single power chip LED technology, and a staggered matrix arrangement process to form a bridge circuit, so that the AC current can be bi-directional to achieve illumination. The AC LED die emits light after being connected to the AC, so only two leads need to be introduced into the AC source to operate.

Driveless technology has been around for a long time in foreign countries. As early as 2005, Seoul Semiconductor Korea has invented AC LEDs that can be directly driven by AC power, followed by Meitong III-N Technology, 3N technology to develop MOCVD growth technology. The basic GaN bottoming can enhance lighting and sensor applications, reduce cost and increase productivity, and provide 6-inch production technology for large and small silicon LEDs. 3N invented the single-chip AC LED (AC LED), established a comprehensive patent portfolio to protect and improve technology, firmly establish its proprietary position, is the first one-finger large-scale commercial production of AC LED products .

In addition, the Taiwan Industrial Technology Research Institute completed an AC LED product that can be industrially produced and has a practical application system plan in 2008. It can be directly plugged into the AC 110V AC voltage at 60Hz or high frequency to make it AC light, applied to the indicator light. , neon lights, low wattage lights, can effectively solve the shortcomings of existing LEDs can not be directly used under AC power, resulting in higher product application costs.

What are the advantages of no drive technology?

Small size, high stability, long life and popular elements

"No-drive technology is currently a relatively advanced technology in the LED industry, but it is not a conceptual technology." Wang Junhua, deputy general manager of Juke Lighting, said that the development of LEDs must be light and thin. Looking at the same, de-driven products will be mainstream in the future."

Compared with traditional drive products, AC LED has the characteristics of small size, high stability and long life. According to Fan Zhikai, General Manager of Zhuo Naipu, the current AC LEDs developed by Zhuo Nai have the following major advantages: direct AC 110/220VAC input, no external AC/DC conversion, integrated IC technology, no electrolytic capacitors and transformers. Longer life; small product size, allowing luminaire design to be more flexible and creative; high power factor (>0.90), low total harmonic distortion (<20%), easy to pass EMC certification; high power conversion rate (>90% ), the overall solution has high light efficiency (>80lm/W); it can be applied to electronic dimmer dimming and partial thyristor dimming.

Fan Zhikai said: "In most cases, LED failure is a problem with the driver power supply. The appearance of AC LED can solve this problem well. Moreover, AC LED products have basically met dimming, including segmentation dimming and no Level dimming."

In addition to the manufacturer's high evaluation of AC LED, application companies are also optimistic about its prospects. As a manufacturer of LED modern lamps, McGraw's lamps have high requirements in appearance. Sun Rijiang, the marketing director of the company, expressed this view on AC LED: "I am more optimistic about AC LED, LED's future development direction should be De-driven, AC LED has the characteristics of small size and high life, which can help the development and innovation of LED. Now, McGee Blue is also using AC LED, and has launched some products, taking one of them as an example. If you don't use AC LEDs, but use traditional drive power, then our modern lights will not have this texture and beauty."

When talking about the advantages of AC LED, Chen Zhongyi, general manager of Yiming Optoelectronics, said that the advantage of AC LED is that the light source is replaced, and the replacement of the whole lamp caused by the traditional drive damage is abandoned.

What are the flaws in driverless technology?

Quality factor or application of AC LED

Although AC LED has a broad prospect, AC LED is not the mainstream in the domestic market. "Any new technology, if it is not approved by the market, will not be recognized by dealers. Without drive technology as a new LED technology, it will not be very long in the domestic market, although it is expected to become a market in the future. Mainstream, but it still takes 2-3 years to test." Chen Zhongyi said.

The reason why AC LED is currently not mainstream in the domestic market, the main reason is the distrust of distributors, consumers and the market for the quality of new products. As a light source company, Morimoto Optoelectronics, a brand of Senben Optoelectronics, said: "Senben Optoelectronics has been paying attention to AC LED for a long time, and because AC LED has the characteristics of cost saving and high voltage, we are also considering whether to start to In this regard, but for now, we still have some concerns about AC LED, the main concern is whether its cooling technology is mature, after all, the heat problem is a key point of LED."

Yan Yang, general manager of Guangyou Lighting , also raised doubts about the quality of AC LEDs. He believes: "AC LEDs are not widely distributed in the market. There are not many companies using this technology, and their quality as new technologies and products. It is difficult to get a testimony if it is difficult to get through. It is for this reason that many companies are still waiting for AC LEDs."

Sun Rijiang also said: "There are many AC LED products on the market, and the quality is also uneven. The stability of AC LEDs with low price is relatively poor, and it is difficult to guarantee the service life of LED lamps." Li Gao, chairman of Qiqi Lighting, believes "It is still to be verified whether the AC LED is fully mature in technology. According to my personal understanding, it still needs to be strengthened in voltage control."

What is the current status of application without drive technology?

A large number of domestic light source companies have gathered their eyesight.

In recent years, many domestic LED light source companies have begun to look into the field of non-driven technology, and have introduced and started independent innovation.

In 2012, Zhuonipu, Juke Lighting, Xinli Light Source and other light source enterprises became the first batch of enterprises to introduce non-driven technology in China, and quickly developed supporting products. At the end of 2013, Juke Lighting launched its G40 series. Zhuo Naipu has now fully promoted its integrated IC light engine products. Xinli Light Source also launched a number of AC LED light engine products in April this year.

Zhuo Napu has been paying attention to non-driven technology since 2011. According to Fan Zhikai: "At that time, Seoul Semiconductor of South Korea just pushed its AC LEDs. We felt that the technology of AC LED would become mainstream in the future. At that time, we began to pay attention to AC LEDs, and introduced this technology in early 2012, and began to independently develop and produce AC LED products, which are now fully produced and recognized by the market."

Regarding the development of AC LED , Wang Junhua also expressed a similar view: "No-drive technology has been developed and produced very early in foreign countries. Three years ago, the Taiwan region gradually emerged and became the earliest place in China to develop and produce AC LEDs. The mainland region was slowly developed in 2012. At that time, Polytech was one of the earliest companies to introduce and research and develop this technology in the mainland. Subsequently, companies such as Xinli Light Source began to have no drive technology. Research. By this year, many companies have continued to introduce products that use driverless technology."

In addition to manufacturing companies, current domestic application companies are also beginning to pay attention to and apply AC LED. According to Fan Zhikai, AC LED has great prospects in China. For now, although the market has not yet spread, many application companies have accepted it. The application of this technology, and also the giant companies began to cut into the field of AC LED, such as Philips, the market is only a short-term problem.

Basically implement a full range of LED applications

Outdoor waterproof performance needs to be strengthened

Different types of companies express different opinions on product applications.

Li Gao said that now AC LED is controlled by voltage, its application is only suitable for multi-chip, low-power light source products, including LED kitchen lights, T5/T8 bracket lights, etc., T5/T8 has been formed into batch.

However, as a light source company and AC LED manufacturers, Polycom and Zhuo Nip put forward different opinions. Wang Junhua said: "At present, AC LED products have basically achieved the popularity of indoor lighting , and can also be applied in outdoor lighting , but its waterproof performance has yet to be researched and improved. However, because AC LED is a front-end product, because of its price High, mainly high-end lighting products are used more, low-end products generally do not choose this product."

Sun Rijiang also believes that: "AC LED is now mainly suitable for high-end products with relatively high prices, as well as modern lighting products that require higher appearance. The finished products are mainly for high-end consumer groups."

Fan Zhikai also said that AC LED can be used in indoor lighting, and outdoor lighting can solve large-scale applications in solving problems such as waterproofing and lightning protection. “At present, Zhuo Naipu's AC LED has been able to basically meet the full range of LED applications. The specifications of the products are also very complete. For example, bulbs can be 3W, 5W, 7W, 9W, 12W, and ceiling lamps can be 10W, 15W. 20W, downlights can be 5W, 7W, 9W, 12W, 18W, 24W, 30W, and high-power engineering products have also launched matching products."

What changes will the driveless technology bring?

AC LED drives revolutionary product revolution

Or become a deadly blow to the driving enterprise

In the process of the author's interview, the respondents all hold the view that the non-driven technology is now in its infancy and is in a period of rapid development. From its development trend, no-drive technology will inevitably become a development of the industry. direction. It will bring another revolution in the development of the LED industry.

The revolution is mainly in three aspects: the revolution of appearance, streamlining, compact, and varied styles, breaking the cumbersome appearance of traditional lamps connecting large drives; the integration of revolution, large drive and small drive, patch mounted on the chip In the middle, simplifying the old and complicated installation procedures; the cost revolution, compared with the traditional drive, reduces the cost by about 10%, and also saves energy, green and new force.

Li Gao said that when the AC LED is mature, it will promote its price to be reasonably standardized, which will greatly help the specification of the entire LED market .

Fan Zhikai said in this regard: "AC LED will inevitably lead to a revolutionary change in the LED industry, because it can not only significantly reduce labor costs, improve production efficiency and product stability, but also make more creative and better. Used in LED products . When AC LED really becomes the mainstream of the market, I think it will have a major impact on traditional drive companies."

An Bin Lighting General Manager Mu Binjun believes that AC LED will become a mainstream technology in the LED industry in the future and is widely used in LED products, but it can not completely replace the traditional driver. In some aspects, the traditional power supply still has Certain advantages.

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