Speaking of gallium nitride power devices, the mainstream solution is single tube and sealing. Gallium nitride single tube with specially optimized controller has been widely used in fast charging of flyback architecture. However, in high-power power supply, higher frequency is usually used to reduce the volume of transformer. Accordingly, sealed gallium nitride power chip is often used in most high-frequency switching power supply because of its built-in driver and simple application at high frequency.

Taigao technology is the first company in the world to have technological innovation solutions for gallium nitride (GAN), silicon carbide (SIC) and gallium arsenide (GaAs) chip processes at the same time. Taigao technology's R & D team comes from International Rectifier company (IR). As early as 2010, Taigao technology continued to develop and sell advanced gallium nitride chips following IR's internationally leading gallium nitride achievements.

Taigao technology has more than ten years of research and development experience in gallium nitride chips. The gallium nitride chips developed by Taigao technology have been widely used by more than 60 large European and American international companies. The global design center of Taigao technology is located in Chicago, the United States, and Kolkata, India. It has R & D and design branches, with more than 50 R & D personnel worldwide, of which more than 80% have doctoral degrees.

Taigao technology has launched a 210W gallium nitride power module scheme for the 100 watt power supply market. It is designed based on PFC + LLC circuit topology and adopts four tp44200nm gallium nitride devices. The whole demo three-dimensional is only 70 * 46 * 31.5mm and the power density is as high as 2.07w/cm ³， It realizes the good application of high efficiency, high power density and low temperature.

Let's take a look at the specific design and test results of the power supply solution of Taigao technology together with the charging head network.

Test conditions: different voltage input, full load output, indoor environment 15 ℃ test, aging for 60 minutes.

Summary:

1. The 210W gallium nitride fast charging module of Taigao technology drives gallium nitride tp44200nm under 90V input environment and full load output condition for 60 minutes, and the temperature is 83.1 ℃; LLC driven gallium nitride tp44200nm, temperature 93 ℃; LLC transformer temperature is 80.1 ℃; The temperature of output synchronous rectifier is 82.7 ℃.

2. Under 220V input environment and full load output condition for 60 minutes, PFC drives gallium nitride tp44200nm, and the temperature is 80.6 ℃; LLC driven gallium nitride tp44200nm, temperature 89.3 ℃; LLC transformer temperature is 97.4 ℃; The temperature of output synchronous rectifier is 75.7 ℃.

For engineers engaged in power electronics design, tp44200nm superior Gan power chip provides better product design ideas for 100w-240w applications, such as chargers for all-in-one computers, televisions, game consoles, electric scooters, electric bicycles and other electric vehicles, chargers for game laptops and other equipment. Tp44200nm is now in mass production and can be ordered immediately from the distribution partners of Taigao technology.

Taigao technology R & D team is committed to developing subversive solutions of wide band gap technology. It has many innovative patented technologies, chip IP and test equipment with its own intellectual property rights, which can significantly reduce the complexity, volume, weight and power consumption of client system level solutions.

As the continuous trade friction between China and the United States cannot be solved in the short term, the domestic replacement of chips has been raised to the height of national strategy. As a domestic gallium nitride power device company, Taigao technology is committed to jointly promoting the development of domestic chip industry; Accelerate the replacement of overseas power chips with domestic power chips. The device selection of the gallium nitride power supply solution of Taigao technology has promised customers to optimize 100% domestically; Avoid the situation of quantity shortage, price rise and even market collapse when customers buy non domestic chips.

"Taigao, make the design simple" is the ideal of Taigao technology. We are committed to making the design more convenient for engineers through exquisite layout, making the products more economical, practical and reliable, and our superior Gan technology brings more possibilities for more efficient, smaller and more reliable new solutions.

Charging head network Summary

The traditional 100 watt power supply is bulky and bulky, which not only takes up space, but also tortures people to take out. Taigao technology's power supply scheme based on its own four tp44200nm superior Gan power chips gives full play to the advantages of gallium nitride. While achieving 210W output power, Taigao technology realizes the miniaturization of modules, which has both small size and high power, and perfectly solves the two major pain points of large and heavy traditional 100 Watt power sources.

The 210W gallium nitride power module of Taigao technology is designed for reference and uses the efficient architecture of PFC + LLC. the controller adopts ucc28056 and ucc256404 of Ti Texas Instruments, which are well-known manufacturers. Combined with Taigao tp44200nm gallium nitride devices, it can obtain high conversion efficiency (95% @ 110VAC & 95.6% @ 220VAC, full load state), which can reduce the heat dissipation demand of power products and reduce the weight of products. The operating officer of Taigao technology explained that 100W / 150W / 240W multi port charger solutions will be launched before the end of March. At that time, these solutions have been jointly launched with other domestic brand chips.

In addition, it is not limited to the output of 100 watt DC power supply. This power supply reference design can also flexibly design the secondary step-down circuit at the output end according to the needs of customers, realize a variety of interfaces and different voltage output support, and meet the requirements of flexibility / reliability / personalization.