Gallium nitride technology enters the field of PC power supply Great Wall releases EPS2400BL (94+) desktop power supply
On October 19, 2020, the first National Power Quality Technology Summit Forum hosted by China Quality Certification Center was successfully held in Shenzhen. Power consumption facilitates in-depth exchanges and discussions on topics such as carbon neutrality and carbon peaking, wireless charging and fast charging technology applications, power supply safety, performance and energy efficiency standardization and certification, and server power supply high-efficiency technical practices.
Zeng Guangfeng, deputy director of China Quality Certification Center, and other leaders of the organizers and guests to the Shenzhen Hangjia Chiyuan Electric Co., Ltd., Great Wall Power Technology Co., Ltd., and Bull Group Co., Ltd. The company, Shenzhen Green Union Technology Co., Ltd. and other 9 companies issued certification certificates.
Founded in 1989, Great Wall Power is the first domestic desktop power supply, the first domestic platinum energy-efficient power supply, and the first domestic supercomputer power supply research and development unit. It has 32 years of experience in switching power supply research and development and manufacturing. At the summit forum, Great Wall exposed the next generation of ultra-high-power desktop power supplies with new gallium nitride architecture and devices, which means that in digitalAccessoriesThe hot gallium nitride technology in the fast charging field has officially entered the desktop power supply market.
The Great Wall GaN desktop power supply belongs to the Great Wall Dragon power supply series. The detailed model is EPS2400BL (94+). The external size is ATX power supply. The output adopts module line design. The interface has 8 groups of 6+2 PCI-E interfaces. , 2 groups of CPU power supply interfaces, 6 IDE/SATA interfaces, 24 pin ATX motherboard interface, using a 14CM heat dissipationfan.
From the product information provided by Great Wall, it can be seen that the power supply uses gallium nitride power devices and totem pole bridgeless PFC; meets the 80PLUS platinum standard with an efficiency of 95.3%; full voltage input, 2400W output power; built-in digital PFC technology + LLC switch Power architecture. And passed the CQC AAA best-level performance certification.
The 80PLUS power supply that has passed the strict conversion rate test on the energy conversion rate has a higher conversion efficiency than ordinary power supplies, and the power supply is more energy-saving, which can directly save consumers a lot of electricity expenses, energy saving, environmental protection, and high efficiency. Take 80 PLUS titanium, which is the most stringent for PC power conversion efficiency, as an example. The required efficiencies of 10%, 20%, 50%, and 100% are respectively 90%, 94%, 96%, 92%, and 96% is equivalent to The maximum utilization of energy is achieved. This figure is an impossible height for the traditional switching power supply technology using Si power devices.
The application of GaN power devices in PC power supplies can easily reach the 80 PLUS platinum standard. At present, most desktop power supplies on the market generally meet the white brand 80 PLUS or bronze PLUS standard, while the Great Wall GaN desktop power supply efficiency is as high as 95.3 %, obtained platinum 80PLUS certification.
The mainstream specifications of desktop power supplies are ATX and SFX power supplies. The power installation holes of medium and large chassis are designed according to the ATX specification power supply. The mainstream power usually ranges from 500W to 1200W. In recent years, ITX motherboards have led to the rise of small cases. The volume of SFX power supplies is less than half of that of ATX power supplies. It naturally becomes the standard configuration of these small steel guns. The mainstream power ranges from 400W to 750W.
Great Wall applies GaN power devices, digital PFC, LLC switching power supply architecture and other technologies to desktop power supplies. The ATX power supply launched by Great Wall can reach as high as 2400W. If this technology is placed on SFX small power supplies, I believe it can also be used in Double the power on a small body. In addition, the load heat of the Great Wall GaN desktop power supply will be greatly reduced, and the fan speed used for heat dissipation can be maintained at a low level, effectively reducing wind noise, and low temperature rise can also delay device aging.
Summary of charging head network
Gallium nitride technology has been out of the laboratory since 2018 and has been successfully mass-produced on chargers. In just a few years, gallium nitride chargers have exploded, and fast charging of 100 watts has led to the rapid popularization of LLC architecture, making high-power chargers volumetric miniaturization. Nowadays, GaN power devices have finally entered the field of desktop power supplies. Great Wall has applied GaN power devices, digital PFC, LLC switching power supply architecture and other technologies to desktop power supplies, and launched EPS2400BL (94+) gallium nitride desktop power supplies. , The output power is 2400W, the efficiency is as high as 95.3%, and it has passed the platinum 80PLUS certification, showing in advance what the desktop power supply will look like in the future.
Great Wall Gallium Nitride ATX power supply can realize the performance requirements of professional fields such as single power supply to drive multiple graphics cards and multi-processors. This often requires multiple power supplies to supply power in the past, while the GaN SFX small power supply can make ITX small steel guns. Driving kilowatt performance, the steel cannon becomes super running.
Looking back at the popularity of gallium nitride digital accessories, the next outlet for gallium nitride is the PC power supply market. Charging Head Network believes that gallium nitride desktop power supplies will be available in batches in recent years, and will gradually replace the high-end market of traditional power supplies for computers. Processors and graphics cards with increasing appetite provide high-power, low-temperature rise, efficient and quiet power supply experience.