At present, the total global lighting market demand is about 10 billion, of which nearly one-third (3 billion) is CFL energy-saving lamps. Nancy Chen, Senior Manager of NXP Semiconductor Lighting Product Market, said: “The CFL energy-saving lamp market will develop rapidly in the next three years. After that, the development speed will be flattened. After five years, the market demand will gradually decrease. There are still cost barriers for LED lamps, but The cost of LED light sources is rapidly declining, and the current market is in the trial phase. It is expected that LED lamps will occupy the mainstream of the general lighting market within the next 5-10 years."
At present, the elimination of incandescent lamps is no longer in the future, but when it is carried out, this year incandescent lamp banned laws have been in effect in Argentina, Australia, New Zealand, France, Italy and the Philippines, and will take effect in the United Kingdom, Finland and the Netherlands next year. Effective in Japan and Canada, 2014 will take effect in the United States, and the world’s latest China will also take effect in 2017. This is one of the main reasons why CFL energy-saving lamp market demand is rapidly rising because CFL energy-saving lamps are one of the current incandescent lamps. The best alternative is not only the price closest to the incandescent lamp, but also the lifespan and energy-saving effect is far beyond the incandescent lamp. A 13W CFL energy-saving lighting effect is equivalent to a 60W incandescent lamp, and the power consumption is reduced by four-fifths. Life is increased by 8-15 times.
A report published by the market research company DatapointResearch in June this year shows that from 2007 to 2013, the incandescent lamp market is experiencing a rapid decline. The CFL energy-saving lamp market is rising strongly and LED lighting is in a state of flux.
Most of the current CFL luminaire drive solutions are provided by NXP. “NXP's annual global sales of CFL drives exceeds 60 million, of which 10 million are sold in the Chinese market, and currently more than 20 global customers are using NXP's CFL drive solutions.†Chen Xiao said, “ This market leadership was achieved because NXP has a unique high-voltage process that allows us to integrate control, MOSFET, and MOSFET drive circuits together on a single die. Other suppliers typically use two die packages and then package on a single chip. As a result, our costs can be made even lower, which is crucial for the cost-sensitive CFL lighting market."
At present, the main problems in the CFL energy-saving lamp market are: the quality of the CFL lamps is uneven, and the CFL lamps need to be warmed up for a long time to reach the maximum brightness and are not compatible with the existing TRIAC dimmer.
Many consumers now complain that buying a home CFL luminaire doesn't take long to turn black or off. The fundamental issue of this quality issue is the EU’s current CFL luminaire standard: the qualification rate for CFL luminaires is 50%, because the EU is the main target market for Chinese CFL luminaire manufacturers, and their product qualification rate basically depends on the EU market. The request. Qualified CFL luminaires have a lifetime of 6,000 hours (approximately 6 years), but due to a pass rate of only 50%, almost half of the CFL luminaires purchased by users are unqualified and their service life may be only a few hundred hours.
This problem may not improve until 2013 because the new EU CFL luminaire standards will not be implemented until 2013. The new standard raises the qualification rate to 70%, which means that after 2013 CFL luminaire consumers will have a much lower probability of buying substandard products.
The new standard has also significantly increased the number of CFL lamps by three times, from 10,000 in 2009 to 30,000 in 2013. Once the number of CFL luminaires reaches the specified number, their filaments will turn black and this luminaire will not be usable. The method of increasing the lifetime of the filament switch is to preheat the filament before the switch is turned on. However, this method can only be realized using an IC-based drive scheme. The current drive scheme based on discrete components cannot achieve this.
At this year's Hong Kong International Lighting Fair, NXP exhibited a 13W embedded CFL drive solution based on its latest UBA2211 driver, which can achieve 90-92% efficiency. Compared with the mainstream discrete solutions on the market today, IC-based CFL drive solutions can reduce the number of peripheral components to a dozen or so. Not only can the PCB board be made small and simple, but the cost will only increase. Yuan money, but also will bring a lot of performance improvements.
For example, Chen Hao said that NXP's UFA2211-based CFL drive power solution can solve the following problems: CFL lamp life can be extended 50-150%, switching times can be increased by 3 to 30 times, product consistency can be greatly improved, photoelectric conversion Efficiency can be increased by 2-5%, lamp size can be reduced, efficient deep dimming can be supported, lamp start-up time can be reduced, product development and labor costs can be reduced, and constant output power (lower input voltage dependency).
Unlike the LED drive power scheme, the CFL drive power scheme does not require the use of specialized EMI cancellation components, which can be achieved with two small ceramic capacitors. In addition, the aluminum electrolytic capacitor (mainly used for eliminating ripple current) required by the power input circuit will not affect the life of the CFL drive Power Supply . Because the CFL is a radiation Light Source, the operating temperature of the aluminum electrolytic capacitor will not be the same as the LED drive power supply. Up to more than 100 degrees, so its working life will not be much affected, generally can reach more than 6,000 hours of working life.
Chen Hao pointed out: "At present, only about 2% of high-quality CFL luminaires on the market are using IC-based drive solutions. We hope that more CFL luminaire manufacturers will adopt embedded IC driver solutions in the future."
However, for many CFL luminaires or driver manufacturers, the use of IC driver solutions also has some practical difficulties. For example, He Qihui, Minister of Technology of Shenzhen Hengyao Optoelectronics Technology Co., Ltd., said: “The CFL drive power we produce today is both discrete and IC-based. IC-based solutions do have many performance advantages and are the future. The development of the mainstream, but for us there are still some process implementation problems, such as all current CFL drive power PCB board are using wave soldering (due to cost considerations), these processing plants are no placement machine, so you need Workers manually mount the IC onto the PCB, which can cause problems with the reliability of the final drive power product due to issues such as ESD."
Disabling the rise of incandescent LED lighting
NXPCFL Drive Power Solutions "PCB Front" and "PCB Backside"
Most CFL drivers on the market today cannot support a wide dimming depth and therefore cannot support all TRIAC dimmers on the market. Chen Hao disclosed: "We have now developed a CFL driver chip that supports all commercially available TRIAC dimmers. Its dimming depth is as high as 1%, but the official release of this chip will not be until next year."
LED Lighting: Strategic Investment Direction
LED solid-state lighting is now widely considered the first choice for high-efficiency lighting in the medium and long-term, and its performance is expected to reach 10 times that of incandescent lamps. The current use of LEDs is mainly in architectural lighting, decorative lighting and effect lighting, as well as special applications such as traffic signals and street lighting.
In order to make LED lighting become the mainstream technology of indoor lighting, the industry is currently making further efforts in terms of brightness, efficiency, light failure, and cost, and it is expected that remarkable progress will be made in the near future.
In order to continue its leading position in the CFL lighting market, NXP has also made necessary strategic investments in emerging markets that will flourish in the next five years. Currently, SSL2101 driver IC for 10W LED lamps and SSL2102 for 10W-25W LEDs have been developed. SSL2102 supports TRIAC dimming NXP LED lighting driver power supply series.
Chen Hao said that "NXP's LED drive solution SSL2101/2102 has been sold since its release in May 2009 and has exceeded 10 million pieces, which is very popular in the market. They are also the only LED driver chips on the market that have reached the LED lifetime standard. (Life expectancy exceeds 75,000 hours) and won the Technology Innovation Award at Las Vegas International Lighting Fair this May."
He said that next year we will also introduce SSL2103, an LED driver chip that supports external MOSFETs, which can drive more power, such as 25W-100W.
The two major issues that currently affect the LED general lighting market are: LED lamps are too expensive and LED drive power supplies have a low life expectancy. A 13W LED Bulb needs about 250 yuan, while a first-class brand of 13WCFL energy-saving lamps only 20 yuan, second-rate brand 13WCFL lamp may only need 15 yuan.
LED lighting is too expensive for two reasons: First, the cost of high-brightness LED light sources is too high, and second, the cost of LED heat sink metal shells remains high.
The good news is that the cost of high-brightness LED light sources is rapidly declining every year. Chen Hao said: "At present, the cost of LED light sources is rapidly falling at a rate of 40%." Vice President and General Manager of the China Cree Shi Jiancan also said: "The cost of high-brightness LEDs is currently falling at a rate of about 25%. â€
More than 3W LED light bulbs need to use a metal heat sink to dissipate heat. The more power, the more metal shell needed and the higher the cost. Therefore, Chen Hao pointed out: "The ultimate solution to solve the LED lighting cooling bottleneck in the future can only be to improve light efficiency, in order to reduce the LED power. Another solution is to go from the point light source to the surface light source, so that the LED power at each point does not need The LED Light Bulb may be just a transitional product in the sense that it is large enough to effectively eliminate heat dissipation problems."
An important reason for the low life of the LED driving power supply is that the life of the aluminum electrolytic capacitor required for driving the power supply is insufficient. The main reason is that the ambient temperature inside the LED lamp is high when working for a long time, and the electrolytic solution of the aluminum electrolytic capacitor is quickly consumed. Dry, life is greatly shortened, generally only work about 5,000 hours. The life of the LED Light Source is 50,000 hours, so the working life of the aluminum electrolytic capacitor becomes a short rib of the LED driver power supply life.
Now some vendors have solved this problem by inventing a LED driver solution without aluminum electrolytic capacitors. However, not all LED driver power suppliers agree with this approach. Chen Hao pointed out: "There is currently no one of the LED lighting drive power supplies that is currently in mass production. The electroless capacitor drive scheme is used because without it, many test standards cannot be passed, such as EMI test and flicker-free test."
The use of aluminum electrolytic capacitors LED drive power scheme is easily the above test, if replaced by film capacitors and ceramic capacitors or tantalum capacitors, what is the situation? The film capacitor must reach the same capacitance (usually 100-220uF), the volume will be very large, and the cost is too high, the ceramic capacitor is generally too small, such as the use of multiple ceramic capacitors to achieve such a large capacity, the board area And the cost is too large, tantalum capacitors to have such a large capacity, one is too expensive, but the pressure is too low to meet the requirements, so replaced by any other kind of capacitor, basically not too bulky, or too expensive, If these disadvantages are replaced by capacitors with small capacitance, the effect of eliminating ripples is not so good. Many of the strict certification test indicators required for export products cannot pass. Therefore, high quality LED driver power supplies still generally use aluminum electrolytic capacitors. .
He Qihui, Minister of Technology of Shenzhen Hengyao Optoelectronics Technology Co., Ltd. said: “The electrolytic capacitorless LED driver solution announced by many suppliers may only remove the aluminum electrolytic capacitor at the AC input. The aluminum electrolytic capacitor at the constant current output should be very Hard to remove or replace."
From the perspective of the LED drive power supply structure, Chen Hao said that Japan and the United States will mainstream non-isolated solutions because their power grid input voltage is only 110V. In China and Europe, an isolated solution will be the mainstream, because their grid input voltage is as high as 220V, and the security of the isolation scheme is guaranteed, although the cost may be higher.
At this year's Hong Kong International Lighting Fair, NXP also demonstrated a TRIAC dimmable 13W LED bulb with an embedded driver power supply. The SSL2102-based driver power solution uses aluminum electrolytic capacitors. When I asked about the working life of the lamp, Chen Hao said: "The working life of aluminum electrolytic capacitors will definitely affect the life of the entire LED bulb, but you can take some physical methods to alleviate this problem, such as the aluminum electrolytic capacitor The position on the PCB is close to the tail of the light. Generally speaking, the temperature closest to the LED light source is the highest, which can reach 100-200°C. The heat-dissipating metal casing is secondarily, generally about 100°C, and the tail is the lowest, generally about 70°C. Therefore, as long as attention is paid to the location of the aluminum electrolytic capacitor close to the lamp tail, its life will not be attenuated too much.Our experiments show that its life can reach about 10,000 hours, which is equivalent to 10 years of use time, which is for the average family. For users, replacing a LED light bulb for ten years is basically acceptable."
At present, the elimination of incandescent lamps is no longer in the future, but when it is carried out, this year incandescent lamp banned laws have been in effect in Argentina, Australia, New Zealand, France, Italy and the Philippines, and will take effect in the United Kingdom, Finland and the Netherlands next year. Effective in Japan and Canada, 2014 will take effect in the United States, and the world’s latest China will also take effect in 2017. This is one of the main reasons why CFL energy-saving lamp market demand is rapidly rising because CFL energy-saving lamps are one of the current incandescent lamps. The best alternative is not only the price closest to the incandescent lamp, but also the lifespan and energy-saving effect is far beyond the incandescent lamp. A 13W CFL energy-saving lighting effect is equivalent to a 60W incandescent lamp, and the power consumption is reduced by four-fifths. Life is increased by 8-15 times.
A report published by the market research company DatapointResearch in June this year shows that from 2007 to 2013, the incandescent lamp market is experiencing a rapid decline. The CFL energy-saving lamp market is rising strongly and LED lighting is in a state of flux.
Most of the current CFL luminaire drive solutions are provided by NXP. “NXP's annual global sales of CFL drives exceeds 60 million, of which 10 million are sold in the Chinese market, and currently more than 20 global customers are using NXP's CFL drive solutions.†Chen Xiao said, “ This market leadership was achieved because NXP has a unique high-voltage process that allows us to integrate control, MOSFET, and MOSFET drive circuits together on a single die. Other suppliers typically use two die packages and then package on a single chip. As a result, our costs can be made even lower, which is crucial for the cost-sensitive CFL lighting market."
At present, the main problems in the CFL energy-saving lamp market are: the quality of the CFL lamps is uneven, and the CFL lamps need to be warmed up for a long time to reach the maximum brightness and are not compatible with the existing TRIAC dimmer.
Many consumers now complain that buying a home CFL luminaire doesn't take long to turn black or off. The fundamental issue of this quality issue is the EU’s current CFL luminaire standard: the qualification rate for CFL luminaires is 50%, because the EU is the main target market for Chinese CFL luminaire manufacturers, and their product qualification rate basically depends on the EU market. The request. Qualified CFL luminaires have a lifetime of 6,000 hours (approximately 6 years), but due to a pass rate of only 50%, almost half of the CFL luminaires purchased by users are unqualified and their service life may be only a few hundred hours.
This problem may not improve until 2013 because the new EU CFL luminaire standards will not be implemented until 2013. The new standard raises the qualification rate to 70%, which means that after 2013 CFL luminaire consumers will have a much lower probability of buying substandard products.
The new standard has also significantly increased the number of CFL lamps by three times, from 10,000 in 2009 to 30,000 in 2013. Once the number of CFL luminaires reaches the specified number, their filaments will turn black and this luminaire will not be usable. The method of increasing the lifetime of the filament switch is to preheat the filament before the switch is turned on. However, this method can only be realized using an IC-based drive scheme. The current drive scheme based on discrete components cannot achieve this.
At this year's Hong Kong International Lighting Fair, NXP exhibited a 13W embedded CFL drive solution based on its latest UBA2211 driver, which can achieve 90-92% efficiency. Compared with the mainstream discrete solutions on the market today, IC-based CFL drive solutions can reduce the number of peripheral components to a dozen or so. Not only can the PCB board be made small and simple, but the cost will only increase. Yuan money, but also will bring a lot of performance improvements.
For example, Chen Hao said that NXP's UFA2211-based CFL drive power solution can solve the following problems: CFL lamp life can be extended 50-150%, switching times can be increased by 3 to 30 times, product consistency can be greatly improved, photoelectric conversion Efficiency can be increased by 2-5%, lamp size can be reduced, efficient deep dimming can be supported, lamp start-up time can be reduced, product development and labor costs can be reduced, and constant output power (lower input voltage dependency).
Unlike the LED drive power scheme, the CFL drive power scheme does not require the use of specialized EMI cancellation components, which can be achieved with two small ceramic capacitors. In addition, the aluminum electrolytic capacitor (mainly used for eliminating ripple current) required by the power input circuit will not affect the life of the CFL drive Power Supply . Because the CFL is a radiation Light Source, the operating temperature of the aluminum electrolytic capacitor will not be the same as the LED drive power supply. Up to more than 100 degrees, so its working life will not be much affected, generally can reach more than 6,000 hours of working life.
Chen Hao pointed out: "At present, only about 2% of high-quality CFL luminaires on the market are using IC-based drive solutions. We hope that more CFL luminaire manufacturers will adopt embedded IC driver solutions in the future."
However, for many CFL luminaires or driver manufacturers, the use of IC driver solutions also has some practical difficulties. For example, He Qihui, Minister of Technology of Shenzhen Hengyao Optoelectronics Technology Co., Ltd., said: “The CFL drive power we produce today is both discrete and IC-based. IC-based solutions do have many performance advantages and are the future. The development of the mainstream, but for us there are still some process implementation problems, such as all current CFL drive power PCB board are using wave soldering (due to cost considerations), these processing plants are no placement machine, so you need Workers manually mount the IC onto the PCB, which can cause problems with the reliability of the final drive power product due to issues such as ESD."
Disabling the rise of incandescent LED lighting
NXPCFL Drive Power Solutions "PCB Front" and "PCB Backside"
Most CFL drivers on the market today cannot support a wide dimming depth and therefore cannot support all TRIAC dimmers on the market. Chen Hao disclosed: "We have now developed a CFL driver chip that supports all commercially available TRIAC dimmers. Its dimming depth is as high as 1%, but the official release of this chip will not be until next year."
LED Lighting: Strategic Investment Direction
LED solid-state lighting is now widely considered the first choice for high-efficiency lighting in the medium and long-term, and its performance is expected to reach 10 times that of incandescent lamps. The current use of LEDs is mainly in architectural lighting, decorative lighting and effect lighting, as well as special applications such as traffic signals and street lighting.
In order to make LED lighting become the mainstream technology of indoor lighting, the industry is currently making further efforts in terms of brightness, efficiency, light failure, and cost, and it is expected that remarkable progress will be made in the near future.
In order to continue its leading position in the CFL lighting market, NXP has also made necessary strategic investments in emerging markets that will flourish in the next five years. Currently, SSL2101 driver IC for 10W LED lamps and SSL2102 for 10W-25W LEDs have been developed. SSL2102 supports TRIAC dimming NXP LED lighting driver power supply series.
Chen Hao said that "NXP's LED drive solution SSL2101/2102 has been sold since its release in May 2009 and has exceeded 10 million pieces, which is very popular in the market. They are also the only LED driver chips on the market that have reached the LED lifetime standard. (Life expectancy exceeds 75,000 hours) and won the Technology Innovation Award at Las Vegas International Lighting Fair this May."
He said that next year we will also introduce SSL2103, an LED driver chip that supports external MOSFETs, which can drive more power, such as 25W-100W.
The two major issues that currently affect the LED general lighting market are: LED lamps are too expensive and LED drive power supplies have a low life expectancy. A 13W LED Bulb needs about 250 yuan, while a first-class brand of 13WCFL energy-saving lamps only 20 yuan, second-rate brand 13WCFL lamp may only need 15 yuan.
LED lighting is too expensive for two reasons: First, the cost of high-brightness LED light sources is too high, and second, the cost of LED heat sink metal shells remains high.
The good news is that the cost of high-brightness LED light sources is rapidly declining every year. Chen Hao said: "At present, the cost of LED light sources is rapidly falling at a rate of 40%." Vice President and General Manager of the China Cree Shi Jiancan also said: "The cost of high-brightness LEDs is currently falling at a rate of about 25%. â€
More than 3W LED light bulbs need to use a metal heat sink to dissipate heat. The more power, the more metal shell needed and the higher the cost. Therefore, Chen Hao pointed out: "The ultimate solution to solve the LED lighting cooling bottleneck in the future can only be to improve light efficiency, in order to reduce the LED power. Another solution is to go from the point light source to the surface light source, so that the LED power at each point does not need The LED Light Bulb may be just a transitional product in the sense that it is large enough to effectively eliminate heat dissipation problems."
An important reason for the low life of the LED driving power supply is that the life of the aluminum electrolytic capacitor required for driving the power supply is insufficient. The main reason is that the ambient temperature inside the LED lamp is high when working for a long time, and the electrolytic solution of the aluminum electrolytic capacitor is quickly consumed. Dry, life is greatly shortened, generally only work about 5,000 hours. The life of the LED Light Source is 50,000 hours, so the working life of the aluminum electrolytic capacitor becomes a short rib of the LED driver power supply life.
Now some vendors have solved this problem by inventing a LED driver solution without aluminum electrolytic capacitors. However, not all LED driver power suppliers agree with this approach. Chen Hao pointed out: "There is currently no one of the LED lighting drive power supplies that is currently in mass production. The electroless capacitor drive scheme is used because without it, many test standards cannot be passed, such as EMI test and flicker-free test."
The use of aluminum electrolytic capacitors LED drive power scheme is easily the above test, if replaced by film capacitors and ceramic capacitors or tantalum capacitors, what is the situation? The film capacitor must reach the same capacitance (usually 100-220uF), the volume will be very large, and the cost is too high, the ceramic capacitor is generally too small, such as the use of multiple ceramic capacitors to achieve such a large capacity, the board area And the cost is too large, tantalum capacitors to have such a large capacity, one is too expensive, but the pressure is too low to meet the requirements, so replaced by any other kind of capacitor, basically not too bulky, or too expensive, If these disadvantages are replaced by capacitors with small capacitance, the effect of eliminating ripples is not so good. Many of the strict certification test indicators required for export products cannot pass. Therefore, high quality LED driver power supplies still generally use aluminum electrolytic capacitors. .
He Qihui, Minister of Technology of Shenzhen Hengyao Optoelectronics Technology Co., Ltd. said: “The electrolytic capacitorless LED driver solution announced by many suppliers may only remove the aluminum electrolytic capacitor at the AC input. The aluminum electrolytic capacitor at the constant current output should be very Hard to remove or replace."
From the perspective of the LED drive power supply structure, Chen Hao said that Japan and the United States will mainstream non-isolated solutions because their power grid input voltage is only 110V. In China and Europe, an isolated solution will be the mainstream, because their grid input voltage is as high as 220V, and the security of the isolation scheme is guaranteed, although the cost may be higher.
At this year's Hong Kong International Lighting Fair, NXP also demonstrated a TRIAC dimmable 13W LED bulb with an embedded driver power supply. The SSL2102-based driver power solution uses aluminum electrolytic capacitors. When I asked about the working life of the lamp, Chen Hao said: "The working life of aluminum electrolytic capacitors will definitely affect the life of the entire LED bulb, but you can take some physical methods to alleviate this problem, such as the aluminum electrolytic capacitor The position on the PCB is close to the tail of the light. Generally speaking, the temperature closest to the LED light source is the highest, which can reach 100-200°C. The heat-dissipating metal casing is secondarily, generally about 100°C, and the tail is the lowest, generally about 70°C. Therefore, as long as attention is paid to the location of the aluminum electrolytic capacitor close to the lamp tail, its life will not be attenuated too much.Our experiments show that its life can reach about 10,000 hours, which is equivalent to 10 years of use time, which is for the average family. For users, replacing a LED light bulb for ten years is basically acceptable."
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