The concept of energy-saving LED display has quietly risen, becoming the highlight of its most attractive to consumers, and it is also the reason for the rapid growth in recent years. Of course, after years of mad growth, the industry is now in a stalemate to reshuffle. In this dilemma, there are bound to be many enterprises that have been affected by this and have been badly hurt, and even went bankrupt. Of course, many enterprises will go out of their haze and gain more long-term development. This is the law of development of the industry. Any enterprise can't escape this disaster. How to regenerate in the disaster is a problem that every enterprise is currently paying attention to.
Figure 1 Led display basic architecture
In this era of high energy-saving calls, the further energy-saving of led display has become a support point for this industry. Many companies have made improvements in various aspects at this point, and have improved to a certain extent, achieving energy-saving effects, but there is still a long way to go to achieve greater energy conservation, which requires the common industry Work hard.
Recently, there have been a few energy-saving LED display screens on the market. Through the improvement of the power supply, the energy-saving effect of the LED display has been greatly improved, attracting the attention of many consumers and giving a very high expectation. Many LED display manufacturers are eager to try, and are ready to introduce this technology first, and gain the opportunity to develop. Based on the current technology, how is the energy-saving effect of the energy-saving LED display achieved?
We use a small LED module to analyze its power consumption! As shown in Figure 2, it is a small LED module with CYT62726 as the driver chip introduced by Changyuntong Optoelectronics. Its power supply voltage is 5V. The power consumption of peripheral devices is not calculated first because they account for a very small proportion in the whole screen. The power consumed by the entire screen is on the lamp. First calculate the power of the lamp point as Pled=n*Uvf*Iled (n is the number of channels, Uvf is the voltage drop of the LED lamp point, Iled is the set current value) CYT62726 driver IC The voltage drop of the pin is generally about 0.6V, and the voltage drop of the red, green and blue lamp points is 1.8V, 3.0V, 3.0V, so that each channel only needs 4V (3.0+0.6V) to work normally, conservatively. Can be set to 2.8V red channel, blue and green channel 3.8V and actually our supply voltage is 5V, which is equivalent to increase the power consumption of 1V * Iled inside the IC, so as can be imagined only
Figure 2 CYT62726 driver led small module
To reduce the power supply to red 2.8V, green 3.8V, blue 3.8V, we can save the 1V*Iled power consumption on the IC channel, and the LED display can be saved without changing other devices. At least 15% or more, plus the reduction of the cooling requirements of the LED screen can also achieve a certain degree of energy saving, which is already a considerable number for a large screen, I believe customers will be happy to accept!
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