[Source: Gaogong LED's "LED Lighting Channel" magazine No. 6 (Total No. 42) Reporter / Xiong Yuheng] After experiencing the market downturn in the previous two years, LED lighting finally ushered in the development turning point this year. With the increasing demand for LED lighting market, the performance of related chip, packaging, application and accessories companies has also increased significantly.
As an important component of LED lamps, power supply has rapidly expanded its market space, which has also led to increasingly fierce competition in the power supply industry.
"Currently, power module technology has been relatively mature, and competition is more reflected in product innovation and cost performance." Li Zhaohua, deputy general manager of Shenzhen Mingwei Electronics Co., Ltd. (hereinafter referred to as Mingwei Electronics) said how to use innovation and scale advantages Reducing costs and increasing the cost performance of products has become the key to power companies to seize the market.
Admittedly, the high price is still an important factor hindering the promotion of LED lighting. By reducing the cost of key components such as power supply and lamp beads, the goal of reducing the cost of the whole lamp has been achieved, which has become the biggest appeal of current downstream application companies.
For the above-mentioned demands, Mingwei Electronics pursues the development strategy of quality going up, price going down, maximizing product cost performance, and satisfying market demand, which has made Mingwei Electronics' rapid growth.
In 2012, the sales volume of Mingwei Electronics' driver IC exceeded 1.5 billion, and the company's total sales exceeded 300 million yuan, becoming a shining star in the field of power supply.
"Lighting Channels": In recent years, Mingwei Electronics has quickly seized the domestic market with high-quality power products, especially the driver IC products of Mingwei Electronics, which occupies a large share of this segment. Please brief us on the situation of Ming Microelectronics?
Li Zhaohua: Ming Microelectronics was established in October 2003. Since its establishment, the company has been focusing on the development and sales of power management, LED lighting and LED display driver chips.
After 10 years of technical accumulation and precipitation, Mingwei Electronics has high-voltage ESD technology, high-precision constant current technology, high-voltage start-up and power supply technology, ultra-low standby power consumption technology, SPWM/PWM/PFM control technology, and high power factor control technology. There are nearly one hundred patents in the field. At the same time, it has successfully built its own brand in terms of driving power, and it has an important market share in the domestic power market.
Maintaining technological innovation and improving product cost performance are the two major tools for Mingwei Electronics to seize the market. To this end, the company invested heavily in the introduction of chip design front-end analysis equipment EMMI, X-Ray, LC liquid crystal hot spot detection, FIB focused ions, etc., providing extremely convenient conditions for the efficient micro-chip failure analysis of Ming Microelectronics technicians. Shortened the development cycle of the chip.
Technological innovation is an important bargaining chip for Mingwei Electronics. At present, the entire power industry is highly homogenized, and Mingwei's unique technology cannot be easily copied. For example, Mingwei's high-voltage single-chip integration technology is difficult to imitate in the market.
In terms of cost performance, Mingwei Electronics pursues quality development, price development strategy, maximizing product cost performance, and satisfying market demand. While capturing the market, it has also achieved rapid growth of Mingwei Electronics.
"Lighting Channels": According to relevant statistics, more than 70% of lamp failures are caused by power supplies, so the stability and reliability of the power supply is directly related to the length of the lamp life. Excuse me, what factors should be considered when identifying the power supply?
Li Zhaohua: Compared with developed countries in the West, the domestic grid power supply voltage is not very stable, and there may be a sudden increase or decrease in voltage, especially when the external current interference such as lightning strikes suddenly produces a spike current or voltage. power supply. Therefore, a good driving power supply needs to have a fuse (or resistor) to provide surge protection for the lamp.
Second, it has a temperature protection function. We know that when the voltage rises, the temperature of the power supply will rise accordingly. If the temperature rises to a certain height, the life of the power supply will drop rapidly until it fails.
The temperature-protected power supply automatically reduces the output current when the voltage rises (or when the temperature rises to a certain value), effectively preventing the power supply temperature from rising continuously, so that the power supply temperature is always within a reasonable range.
In addition, there is such a misunderstanding in the industry, and everyone will think that the accuracy of the constant current is as accurate as possible. Therefore, the accuracy of constant current is generally regarded as an important criterion for evaluating the quality of power supply. I believe that the constant current accuracy deviation is within the range of ±5%-10%, which will not have much impact on the luminous efficacy of the lamp. Excessive accuracy of constant current is required, which in turn affects the safety and stability of the power supply.
Of course, a good power supply needs to meet market demand and be recognized by consumers. This is the most important.
"Lighting Channels": At present, the terminal market pays too much attention to the price. Many enterprises are targeting the low end of the market demand and hitting the market with low-priced and inferior products, which is very unfavorable for the development of the industry. How does Ming Microelectronics control product costs?
Li Zhaohua: As far as I know, the competition in the power supply market is very fierce and the market environment is very chaotic. In order to cater to the market demand for low prices, many companies cut corners on key components of power supply. Although the prices of the products are low, the stability and reliability are relatively poor, which easily causes the lamps to fail. The side effects of the whole industry are very obvious.
Ming Microelectronics will fully consider the performance and safety factors of the power supply, use innovative design to improve product performance, and reduce production costs through large-scale production.
Under the premise of ensuring product performance, we reduce the number of components used by scale integration. The overall BOM component of the power board is reduced from 13 (such as: SM7523B) to 9 (such as: SM7302), and then to the next 5 (eg SM2082C), reducing power costs.
The core of integrated circuits is to reduce costs, achieve mass production, and create a wide range of profitable space for enterprises and customers. Only in this way can market recognition be obtained. If the power supply design does not have these two cores, it will not become the mainstream of the market.
"Lighting Channels": Based on the need to minimize costs, many LED lighting companies are now going to power supply design on the company's development agenda. What do you think about the trend of power supply? Has Mingwei Electronics conducted related research and development?
Li Zhaohua: Reduce the cost by reducing the power components. The reduction is very limited, and can not meet the market demand for low prices. Therefore, the design of power supply is undoubtedly the main trend of the future development of the industry. By directly encapsulating the driver IC in the luminaire, the cost of the luminaire can be reduced, and the life of the luminaire can be improved, and the volume is smaller and easier to design.
Ming Microelectronics recently introduced the high power factor LED lighting driver chip SM2087, which can be directly packaged in LED lamps.
The chip adopts four-way segmented current step-by-step high-power factor patented technology, using 700V CDMOS hybrid single-chip integration process, eliminating the need for transformers, inductors and electrolytic capacitors, achieving a power factor greater than 0.99 and a THD of less than 20%. The conversion efficiency is over 90%, the output current accuracy is less than ±5%, and the advantages are small volume and high reliability.
At present, Mingwei Electronics has provided this driver chip to a well-known LED lighting company in China, and cooperated with R&D to develop the design of de-energized lamps. It is believed that mature products will be put on the market soon, bringing about innovative changes in LED lighting. .
Mingwei Electronics has been continuously innovating to improve product cost performance. Our aim is to design products that people like, to reduce the cost of living and improve the quality of life.
As an important component of LED lamps, power supply has rapidly expanded its market space, which has also led to increasingly fierce competition in the power supply industry.
"Currently, power module technology has been relatively mature, and competition is more reflected in product innovation and cost performance." Li Zhaohua, deputy general manager of Shenzhen Mingwei Electronics Co., Ltd. (hereinafter referred to as Mingwei Electronics) said how to use innovation and scale advantages Reducing costs and increasing the cost performance of products has become the key to power companies to seize the market.
Admittedly, the high price is still an important factor hindering the promotion of LED lighting. By reducing the cost of key components such as power supply and lamp beads, the goal of reducing the cost of the whole lamp has been achieved, which has become the biggest appeal of current downstream application companies.
For the above-mentioned demands, Mingwei Electronics pursues the development strategy of quality going up, price going down, maximizing product cost performance, and satisfying market demand, which has made Mingwei Electronics' rapid growth.
In 2012, the sales volume of Mingwei Electronics' driver IC exceeded 1.5 billion, and the company's total sales exceeded 300 million yuan, becoming a shining star in the field of power supply.
"Lighting Channels": In recent years, Mingwei Electronics has quickly seized the domestic market with high-quality power products, especially the driver IC products of Mingwei Electronics, which occupies a large share of this segment. Please brief us on the situation of Ming Microelectronics?
Li Zhaohua: Ming Microelectronics was established in October 2003. Since its establishment, the company has been focusing on the development and sales of power management, LED lighting and LED display driver chips.
After 10 years of technical accumulation and precipitation, Mingwei Electronics has high-voltage ESD technology, high-precision constant current technology, high-voltage start-up and power supply technology, ultra-low standby power consumption technology, SPWM/PWM/PFM control technology, and high power factor control technology. There are nearly one hundred patents in the field. At the same time, it has successfully built its own brand in terms of driving power, and it has an important market share in the domestic power market.
Maintaining technological innovation and improving product cost performance are the two major tools for Mingwei Electronics to seize the market. To this end, the company invested heavily in the introduction of chip design front-end analysis equipment EMMI, X-Ray, LC liquid crystal hot spot detection, FIB focused ions, etc., providing extremely convenient conditions for the efficient micro-chip failure analysis of Ming Microelectronics technicians. Shortened the development cycle of the chip.
Technological innovation is an important bargaining chip for Mingwei Electronics. At present, the entire power industry is highly homogenized, and Mingwei's unique technology cannot be easily copied. For example, Mingwei's high-voltage single-chip integration technology is difficult to imitate in the market.
In terms of cost performance, Mingwei Electronics pursues quality development, price development strategy, maximizing product cost performance, and satisfying market demand. While capturing the market, it has also achieved rapid growth of Mingwei Electronics.
"Lighting Channels": According to relevant statistics, more than 70% of lamp failures are caused by power supplies, so the stability and reliability of the power supply is directly related to the length of the lamp life. Excuse me, what factors should be considered when identifying the power supply?
Li Zhaohua: Compared with developed countries in the West, the domestic grid power supply voltage is not very stable, and there may be a sudden increase or decrease in voltage, especially when the external current interference such as lightning strikes suddenly produces a spike current or voltage. power supply. Therefore, a good driving power supply needs to have a fuse (or resistor) to provide surge protection for the lamp.
Second, it has a temperature protection function. We know that when the voltage rises, the temperature of the power supply will rise accordingly. If the temperature rises to a certain height, the life of the power supply will drop rapidly until it fails.
The temperature-protected power supply automatically reduces the output current when the voltage rises (or when the temperature rises to a certain value), effectively preventing the power supply temperature from rising continuously, so that the power supply temperature is always within a reasonable range.
In addition, there is such a misunderstanding in the industry, and everyone will think that the accuracy of the constant current is as accurate as possible. Therefore, the accuracy of constant current is generally regarded as an important criterion for evaluating the quality of power supply. I believe that the constant current accuracy deviation is within the range of ±5%-10%, which will not have much impact on the luminous efficacy of the lamp. Excessive accuracy of constant current is required, which in turn affects the safety and stability of the power supply.
Of course, a good power supply needs to meet market demand and be recognized by consumers. This is the most important.
"Lighting Channels": At present, the terminal market pays too much attention to the price. Many enterprises are targeting the low end of the market demand and hitting the market with low-priced and inferior products, which is very unfavorable for the development of the industry. How does Ming Microelectronics control product costs?
Li Zhaohua: As far as I know, the competition in the power supply market is very fierce and the market environment is very chaotic. In order to cater to the market demand for low prices, many companies cut corners on key components of power supply. Although the prices of the products are low, the stability and reliability are relatively poor, which easily causes the lamps to fail. The side effects of the whole industry are very obvious.
Ming Microelectronics will fully consider the performance and safety factors of the power supply, use innovative design to improve product performance, and reduce production costs through large-scale production.
Under the premise of ensuring product performance, we reduce the number of components used by scale integration. The overall BOM component of the power board is reduced from 13 (such as: SM7523B) to 9 (such as: SM7302), and then to the next 5 (eg SM2082C), reducing power costs.
The core of integrated circuits is to reduce costs, achieve mass production, and create a wide range of profitable space for enterprises and customers. Only in this way can market recognition be obtained. If the power supply design does not have these two cores, it will not become the mainstream of the market.
"Lighting Channels": Based on the need to minimize costs, many LED lighting companies are now going to power supply design on the company's development agenda. What do you think about the trend of power supply? Has Mingwei Electronics conducted related research and development?
Li Zhaohua: Reduce the cost by reducing the power components. The reduction is very limited, and can not meet the market demand for low prices. Therefore, the design of power supply is undoubtedly the main trend of the future development of the industry. By directly encapsulating the driver IC in the luminaire, the cost of the luminaire can be reduced, and the life of the luminaire can be improved, and the volume is smaller and easier to design.
Ming Microelectronics recently introduced the high power factor LED lighting driver chip SM2087, which can be directly packaged in LED lamps.
The chip adopts four-way segmented current step-by-step high-power factor patented technology, using 700V CDMOS hybrid single-chip integration process, eliminating the need for transformers, inductors and electrolytic capacitors, achieving a power factor greater than 0.99 and a THD of less than 20%. The conversion efficiency is over 90%, the output current accuracy is less than ±5%, and the advantages are small volume and high reliability.
At present, Mingwei Electronics has provided this driver chip to a well-known LED lighting company in China, and cooperated with R&D to develop the design of de-energized lamps. It is believed that mature products will be put on the market soon, bringing about innovative changes in LED lighting. .
Mingwei Electronics has been continuously innovating to improve product cost performance. Our aim is to design products that people like, to reduce the cost of living and improve the quality of life.
APPLICATIONS
DELIGHT lighting pole is ideal for pedestrian, street, highway and other general lighting applications. 2m-4m for garden, parks, pedestrian streets. 5m-12m for roads, highway.12m-30m for plazas, airport, seaport, squares
MATERIAL
Q235, Hot-dip galvanized steel, galvanized plating on both of side of pole. Zinc plating 120-130 micron average. Steel anchor bolt with bolts & screws. Hand pole,
SHAPE
Tapered, Square, Octagonal, Hexagonal, Conical, Round
DEMENSION
Top diameter & bottom diameter, thickness customized, while we will provide proposal according to application condition
FINISH
Finishes include hot dip galvanized or painted. Please consult factory for special finishing color and fixture matching options
Street Light Pole,Light Pole,Street Pole,Yard Light Pole
Delight Eco Energy Supplies Co., Ltd. , https://www.cndelight.com