We should not be unfamiliar with LED displays, but for the LED drive power in the LED display, we must not know much about it. The LED drive power is actually to convert the daily power supply into a specific voltage and current, so as to achieve driving Power converter for led lighting purpose.
For example, we usually use a 220V power supply, but after power conversion, the power supply can be turned into a 5V power supply, which can be used to power some small electronic devices, which is safer for the human body. The principle of LED driving power is the same. Yes, it can be converted into a suitable power supply for LED display according to different environments.
With the rapid development of the LED industry, the brands of LED drive power are also increasing, so what is the ranking of domestic LED drive power brands? What is the ranking of the global LED drive power brands? Let’s take a look.
Domestic LED drive power brand ranking list:
1. Mean Well, Taiwan
2. Dongguan UE ELECTRONIC
3. Delta Electronics, Taiwan
4. Hangzhou Infineum
5. Shenzhen Maoshuo
6. Shenzhen Ruigu
8. Guanjin Electronics
9. Jingchen Electronics
10. Jinxing Technology
Global LED drive power brand ranking:
1. Texas Instruments
2. National Semiconductor
5. Linear Technology
6. NXP, Netherlands
7. China Fuhua Electronics
8. Infineon, Germany
9. Toshiba, Japan
Development trend of led drive power supply:
(1) A series of constant voltage and constant current control electronic circuits are developed according to the characteristics of LEDs, and the input current of each LED is controlled at the optimal current value by using integrated circuit technology, so that the LED can obtain a stable current and generate the highest output luminous flux . It is best to control the size of the LED current when the LED drive power supply changes in factors such as input voltage and ambient temperature.
(2) The LED drive power supply has intelligent control function, so that the load current of the LED can be controlled at a pre-designed level under the influence of various factors. When the load current changes due to various factors, the primary control IC can control the switch to bring the load current back to the original design value.
(3) In terms of control circuit design, it is necessary to develop towards centralized control, standard modularization, and system scalability.
(4) Under the current limited luminous efficiency and luminous flux of LEDs, give full play to the characteristics of LED color diversity and develop control circuits for color-changing LED lighting.
Challenges faced by led drive power supply:
First: Improve the lifespan, prolong the use time of lamps, and the overall lifespan of the drive circuit, especially the key devices such as: The lifespan of capacitors at high temperatures (generally above 75 degrees) will directly affect the lifespan of the power supply, which in turn affects the LED display. service life;
Second: improve efficiency and improve the light efficiency of lamps. LED drivers should challenge higher conversion efficiency, especially when driving high-power LEDs, because all the power that is not used as light output is dissipated as heat, and the power conversion efficiency is too low, which affects the LED energy-saving effect. , will also affect the heat dissipation of the LED display;
Third: reduce costs and improve affordability. At present, in applications with low power (1-5W), the proportion of the cost of constant current drive power is close to 1/3, which is close to the cost of light source, which affects market promotion to a certain extent.
The above three points are the problems that the LED power supply needs to face in recent years. After solving these three problems, I believe that the performance of the LED display will go to a higher level.
The domestic and global LED drive power brand rankings have been shared in the article. With the rapid development of society, the brand rankings of enterprises may also change at any time. The content provided in this article is based on LED driver power in recent years. What will happen to the brand ranking of driving power in the future can only be announced in the near future. The development trend of LED drive power is still quite fast, but the challenges it faces are not simple. I look forward to the development of LED drive power.