AWARDSSHORTLIST
this temperature range. The Enecsys micro-inverter is equipped with a robust built-in ZigBee wireless communication system that connects to the Internet via a gateway.
It provides detailed information on the performance of each solar module, a capability not available with string inverters. This comprehensive monitoring system uniquely gives users and installers detailed real-time information to ensure that the solar system is operating with optimized performance over the life of the installation.
The SM3320 enables the benefits of National’s SolarMagic power optimizer to be embedded directly into junction boxes, which already reside on all solar panels. Packaged as a complete board- level system or available as a chipset, National’s SM3320 incorporates ten proprietary analog and mixed-signal integrated circuits, providing highly reliable digital-control combined with analog sensing and communication.
Energy Usage Enabling Award
Proprietary algorithms apply localized maximum power point tracking (MPPT), extracting the maximum energy available by translating the input voltage and current to the best output voltage and current pair to maximize energy flow. The SM3320 is cognitive: the system senses input voltage and current throughout the array and adjusts to achieve optimum string levels.
world. These JFETs are considered the Best-in-Class and most innovative technology in power semiconductors since the advent of the Silicon IGBT over 20 years ago.
Energy Usage Enabling Award
SM3320 SolarMagic smart panel chipset
The National Semiconductor SM3320 is the solar industry’s first in-panel SolarMagic™ chipset, marking the advent of a new category of solar systems: “smart panels.”
SiC normally-off high power JFETs
The SM3320 SolarMagic smart panel chipset provides junction box and module manufacturers with the ability to ensure the highest efficiency and return on investment for solar system owners.
By coupling more energy production with a lower balance of systems cost, the SM3320 provides solar system owners a high-performance solution at the lowest cost per kilowatt-hour.
SemiSouth has introduced a family of Silicon Carbide 1200V high current normally-off Trench JFETs that enable the improvement of Solar Inverter efficiency to 99%. This is the highest efficiency ever achieved and has been demonstrated and announced by the Fraunhofer Institute in Germany and in press announcements and papers at a number of technical conferences around the
SemiSouth is the first company in the world to produce a normally-off vertical trench JFET which has a die area that is x10 smaller silicon devices. SemiSouth’s normally-off Trench JFET is the first SiC device in the world to achieve power levels to meet the requirements for Solar Inverters from 3kW to 100kW and is economically viable compared to Silicon IGBTs and MOSFETs. With SemiSouth’s Trench JFETs, Solar Inverter companies can increase the PWM frequencies of their inverters from 18kHz to over 50kHz thereby allowing a substantial reduction in the magnetics, output chokes, size of the heat sink, lower the weight and reduce the size of the enclosure. In total, SemiSouth’s JFETs can provide an overall “cost reduction” benifit and simplify inverter installation.
The challange of improving the efficiency of Solar Inverters while also reducing the cost, size and achieve long life of >20 years. SiC material is by nature, more reliable, can handle much higher temperatures. SemiSouth is the first company to produce normally-off SiC JFET power switches that can “drop-in” to existing Inverter platforms and enable an improvement of 1-2 percentage points.
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JFET is “normally-off” and capable of high currents (20 to 50A devices are available now) All other JFETs are normally-on devices and as such are not suitable due to safety reasons and other control factors and cannot be used in Solar Inverters.
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