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Philips unveils 'energy-efficient ICs' for PCs

Posted: 24 Mar 2006     Print Version  Bookmark and Share

Keywords:Royal Philips Electronics  GreenChip  energy-efficient IC  Greenchip 

Royal Philips Electronics has unveiled two additions to its GreenChip family of 'energy-efficient ICs'— the Greenchip PC and the Greenchip SR.

The GreenChip PC is an all-in-one chipset designed to increase the overall efficiency of desktop PC power supplies beyond 80 per cent. According to Philips, most current desktop PC power supplies are only 60 to 70 per cent efficient when operating, converting 30 to 40 per cent of the consumed AC power into heat. Power supplies operating at 80 per cent efficiency or better can help save energy and reduce electricity costs.

The GreenChip PC also features a topology that makes compliance to energy efficiency specifications, such as 80 PLUS and ENERGY STAR, easier and more cost-effective for PC power supply manufacturers. The GreenChip PC is based on Philips' patented technology that integrates the standby supply into the main converter, thereby reducing the number of external components required. Its local secondary regulation also solves primary-side feedback issues and improves cross-regulation.

The GreenChip SR, the company claims, is the only secondary control IC that integrates both synchronous rectification and primary feedback/control functionality. Used in notebook adapters, it is said to improve energy efficiency by three to five per cent. This product also has a wide operation range of 8.5V to 38V, thereby minimizing the number of required external components and allowing simpler designs. Its 10V driver output likewise makes the GreenChip SR compatible with all brands of MOSFETs.

The GreenChip SR is already in the market, while samples of the GreenChip PC chipset, consisting of three ICs, will be available in Q2 of 2006.

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