LED fluorescent lamp power supply design and production method I am a switching power supply. I used to be an adapter, a charger, and an iron-shell switching power supply. Later, I did LED power, and I started to do some 1W, 3W high-power LED drivers , but I did less. The reason is simple, there is no market. I found that high-power LED constant current power supply, as long as its power exceeds 5W, there is basically no market, only proofing. Because the LED is too expensive. This is also considered to be a wake-up call for friends who are doing power supply. This is my experience. I do not know how many people have fallen into high-power LEDs, high-power LED thunder is loud, rain is small, and many of them are lost in this piece. Still a small power LED market is better. But it doesn't work either. Now the low-power LED driver is blocked by most of the resistor-reducing power supplies. The constant current switching power supply drives the low-power LED, which is good, that is, many people can't accept the cost. I have a constant current type low power LED driver, switching power supply, the efficiency reaches 0.9, stability reliability, constant current accuracy are very good, the price is only five yuan, but many people are still too expensive, because They compare it with a one-way resistance-reducing step-down power supply, of course, the two are simply incomparable. Inside the switching power supply I have, there is an integrated MOS switching power supply chip and a transformer. The cost of the two is put there, of course, the performance is also there. But I believe that the final low-power LED constant current driver will eliminate the RC capacitor. Because consumers will gradually become more rational, a luminaire that is made of a resistor-reducing buck power supply has almost no practical value. It can only be used as a display and toy. If the LED really enters the field of general illumination, the resistance is reduced. The voltage source is simply not up to the task. I can expect that in the future, as the performance of LEDs increases, the price will decrease, and the cost of power will become a very important part of the cost of LED lamps. The real luminaire, the resistance to the pressure drop is simply not competent. Resistor-capacitor buck power supply is popular, just a transition, and finally the constant current power supply is authentic. I am still optimistic about low-power LED lamps. Low-power LED lights, currently mainly due to too much light decay, the price is not ideal. But now it is still superior to high power for general lighting. I think that low-power LED lamps enter the field of general lighting, and with energy-saving lamps, it will be within five years. The entry of high-power LEDs into general-purpose lighting is certainly something beyond five years. So now I focus on the development and production of low power LEDs. I noticed that the lamps used in general lighting for low-power LEDs are mainly LED desk lamps, LED honeycomb lamps, and LED fluorescent lamps. Especially for LED fluorescent lamps, since the second half of 2007, many people have started research and development, and it can be said that the heat is incredible. Basically, there are eight of the ten people who are looking for me now, so I started to do the power supply of LED fluorescent lamps for a while, so I would like to talk about the development and production of this kind of power supply. Methods and principles. What the individual has experienced. Now LED fluorescent lamp power supply, manufacturers of lamps are generally required to be placed in the lamp, such as in the T8 lamp. Very few are external. I don't know why it is like this. In fact, the built-in power supply is difficult to do, and the performance is not good. But I don't know why there are so many people asking for it. It may be down with the wind. The external power supply should be said to be more scientific and more convenient. But I also have to fall with the wind, what the customer wants, I will do. But within
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