The US Environmental Protection Agency (EPA) estimates that there are more than 10 billion AC-DC power supplies used in computing, telecommunications, and consumer electronics worldwide. According to the EPA, more efficient power supply designs could significantly reduce U.S. energy use, saving nearly $3 billion and about 24 million tons of carbon dioxide emissions per year.

Marvell

So, Marvell today announced energy efficient digital power factor correction technology for power supplies that is designed to cut PC energy use and help reduce the carbon footprint by reducing the need to add more power plants. Based on Marvell’s digital signal processing (DSP) and power management expertise, these new chips are expected to boost energy efficiency by aligning the current and voltage coming from the electrical outlet for optimal energy use by the PC. Today, more than half the power from the outlet is wasted as heat.

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