Efficient power electronics
EnPhase is one of the companies that received a grant to improve the power electronics in the grid, a seemingly obscure but important issue. The company has developed a chip (black box at right) made on a gallium arsenide substrate which is part of the electronics needed to switch from alternating current on the grid to direct power that many machines, such as motors, use. The goal is to handle much higher voltages on the grid and to reduce the losses that occur when switching from AC to DC and back.
February 28, 2012 10:48 AM PST
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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