Date: 24/05/2010

New IC for increasing the power efficiency of solar PV cells

Microsemi has introduced LX2400, a new device as part of its solar bypass solution for increasing power generation efficiency in photovoltaic (PV) solar module applications. It is an integrated circuit solution based on technology developed by Microsemi in conjunction with Spelsberg ELS. The LX2400 implements the CoolRUN technology, which increases power-generation efficiency and reduces operating temperatures.

"Microsemi is excited to bring this new, ground-breaking technology to the solar PV industry," said Tom Kapucija, director of marketing with Microsemi's Analog Mixed Signal Group. "With the lowest forward voltage drop in a bypass solution, the LX2400 will be the first of its kind to address thermal reliability, operational cost, and power-generation efficiency challenges that are common in solar installations. By adapting and refining our expertise in satellite PV module applications, where high reliability is a must, we have developed a solution that can provide system operators with improved profitability, a faster break-even time, and improved energy efficiency."

According to market research firm Gartner in a December 2009 press release ("Gartner Says U.S. Solar PPA Industry Growth Will Create New IT Revenue Opportunities"), "the U.S. solar power purchase agreement (PPA) market will grow to reach an estimated $8 billion in new photovoltaic (PV) solar power generation installations by 2013, up from an estimated $700 million in 2009."

"Solar PPAs are expected to reach 3 Gigawatts of installed systems in 2013 in the U.S. alone, representing $8 billion," said Al Velosa, a research director at Gartner. "Semiconductor technologies can help cut operational expenses for these PPAs, particularly for insurance, warranty and in-field recall and replacement costs. This will have a clear impact on PPA profitability, and the potential to significantly accelerate market development."

The LX2400 device finds application in junction boxes supporting both existing and next-generation high-power solar modules for industrial, commercial, and solar PPA applications. It has a forward voltage drop of 50mV under 10A load currents and operates with low heat generation, resulting in a temperature rise of 10 degrees C (typical). It is designed with Microsemi's design rule methodology to enable support for industry warranty requirements and extreme environment survivability. It functions from -65 degrees C to +165 degrees C, passes 1.4Joule lightning tests and is compliant with IEC61215.

For more information visit: http://www.microsemi.com