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Low-load resonant LLC power sol'n cuts design complexity

Posted: 18 Mar 2015     Print Version  Bookmark and Share

Keywords:NXP Semiconductors  resonant LLC  GreenChip  power supply 

NXP Semiconductors N.V. has brought to market its innovative GreenChip power solution. According to the company, the TEA1916+TEA1995 platform is an easy-to-design resonant LLC solution aimed at desktop PC/AiO, gaming consoles, notebook adapters and large panel TVs.

The TEA1916+TEA1995 platform promises to deliver very high efficiency over the entire load range, especially at light loads of 10-30 per cent, easily meeting energy efficiency regulations including Energy Star v6, CoC tier 2, 80+ platinum and EuP Iot6.

TEA19161

The TEA1916 additionally features low no-load power below 75mW, meeting and exceeding requirements of Energy STAR, DoE, CoC tier 2, etc. The LLC resonant topology also makes it easier to meet Common Mode Noise requirements and 200 per cent peak power requirements when compared to a flyback topology, indicated NXP.

TEA19162

Power supplies built on resonant LLC topologies are often considered difficult to design and expensive. The TEA1916+TEA1995 platform reverses this trend. Based on NXP's novel cycle-by-cycle architecture, the TEA1916+TEA1995 platform claims to offer an easy-to-design power supply that comes closer to flyback with all the added advantages of resonant LLC.

TEA1995

The energy transfer from primary side to the output is controlled every switching cycle, offering a linear relationship between the control parameter and the required output power. The cycle-by-cycle technology also enables a more accurate burst mode and reduced audible noise, added the company.

The TEA1916+TEA1995 Platform will be available in 2Q15.





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