Royal Philips Electronics unveils the two newest additions to its GreenChip family of energy-efficient ICs. The Philips GreenChip PC is a chipset featuring an innovative, all-in-one design that increases the overall efficiency of desktop PC power supplies beyond 80 percent. The GreenChip SR, a secondary control IC for notebook adapters, improves the efficiency of laptop computer adapters by three to five percent. Both chips will be showcased at the Applied Power Electronics Conference (APEC) in Dallas, Texas this week.
GreenChip PC: Advanced topology for PC power supplies
The Philips GreenChip PC introduces a new topology that makes it easier and more cost-effective for PC power supply manufacturers to comply with energy efficiency specifications such as 80 PLUS and ENERGY STAR. The GreenChip PC is an advanced system solution based on Philips’ patented technology, which integrates the standby supply into the main converter, reducing the number of external components required. Local secondary regulation also solves primary side feedback issues and dramatically improves cross-regulation.
Most current desktop PC power supplies are only 60- to 70-percent efficient when operating, converting 30 to 40 percent of the AC power consumed by the computer into heat. By using highly efficient power supplies operating at 80-percent efficiency or greater, PC manufacturers can help business and home users save energy and reduce their electricity costs significantly. According to Ecos Consulting, switching to more efficient power supply designs in desktop computers could save approximately 11 to 22 billion kWh of electricity and $880 million to $1.8 billion in energy costs per year in the U.S. alone.
"The GreenChip PC chipset brings the highest level of integration to energy-efficient desktop power supplies – delivering considerable savings as a result," said Edwin Kluter, marketing manager, integrated power product line, Philips Semiconductors. "Initial customer response has been resounding, particularly as new regulations and initiatives such as 80 PLUS and ENERGY STAR make energy efficiency a major priority worldwide."
GreenChip SR: Improved efficiency for notebook adapters
The Philips GreenChip SR (TEA1761 and TEA1762) is the only secondary control IC available to integrate both synchronous rectification and primary feedback control functionality, all in one. Used in notebook adapter designs, the GreenChip SR can help achieve three- to five-percent gains in energy efficiency. The GreenChip SR also offers a wide operation range of 8.5V to 38V, minimizing the number of external components required and enabling simpler designs. In addition, the high driver output voltage (10V) makes the GreenChip SR compatible with all brands of MOSFETs.
"With the GreenChip SR, Philips is building on its leadership position in ICs for notebook adapters by enabling plug-and-play designs," said Kluter.
The Philips GreenChip SR (TEA1761) is available immediately and is priced at $0.40 to $0.60 USD in quantities of 100,000. Samples of the GreenChip PC chipset, consisting of three ICs (TEA1771, TEA1772 and TEA1782), will be available in Q2 of this year. The GreenChip PC is priced at less than $5.00 USD for the complete chipset in quantities of 100,000. Both products will be shown at the Philips Semiconductors booth at APEC in booths (#28/29/30/31).
For additional information on these and other power management products from Philips, please see: semiconductors.philips.com/products/power_management/