EPISTAR: GaN materials LED application possibilities

"EPISTAR has always had a belief, is the realization of the LED unlimited. "Said Jingyuan Au Optronics Co deputy general manager Xie Mingxun in June 11th by LEDinside LED, China network and Guangzhou International Lighting Exhibition organized by the LEDforum LED 2015 Chinese international market trends forum.

According to the EPISTAR test data show that the general Si MOSFET conversion efficiency in 87%, and the replacement of GaN power devices can achieve 95%. However, GaN materials have been used in the LED blue light substrate materials, but ignored the application of its most primitive semiconductor materials.

According to the U.S. Department of energy data show that global energy in addition to natural gas, coal and nuclear power occupies 11.1% of the wind power, solar energy, energy conversion in the use of Si power devices, the loss rate as high as 10%, and application of the GaN material should not be limited to this.

Mr. Xie Minxun, deputy general manager of EPISTAR R & D Center said, 4H-SiC is the first generation commercial transistor through a large size, high cost to maintain the current circulation, such as Kim GaN high voltage transistors can achieve high voltage, high current, fast response speed and lower cost.

From the traditional light bulb to today's LED, lighting has gone through the traditional lighting, DC drive LED lighting to AC LED lighting. AC LED or LED lighting will be the ultimate ideal way, and the current market is most concerned about the high pressure LED.

As the most important part of the high voltage LED is the driving element, and the emergence of GaN power devices to solve this problem. According to Mr. Xie Mingxun said, GaN power device is a small volume of the collector, the temperature resistance of the product, to achieve a simple circuit LED lighting products.

EPISTAR as a leader, is a collaborative development model launched GaN high voltage transistor based on DOB technology, the power supply will directly drive package on the printed circuit board, reduce the size of light source, greatly reduce the traditional threshold to enter the LED lighting lamp factory. Blu ray drive blue light LED, so that the application of LED infinite ideal ideal into reality.

For more information about LED, please click on China LED network or pay attention to WeChat public account (cnledw2013).