 Welcome to this presentation where we show you ST solutions based on digital designs and powerful new switches that allow very high efficiency switch mode power supplies. There are several key blocks in middle and high power supply architecture common in many applications like lighting, industrial SNPS, chargers and so on in power scales ranging from several hundred watts up to several tens of kilowatts. On the input side of the power supply we often find a power factor correction or PFC system to generate the required output DC voltage level which is 400 volts for standard mains applications or 700 to 800 volts for three phase applications. After the PFC we generally find the DC to DC converter. An LLC or phase shift topology is the usual choice as it can achieve higher efficiency through soft switching. There is also an auxiliary SNPS for controllers and drivers. We offer many digital SNPS design examples featuring performance and quality silicon devices designed and manufactured by ST microelectronics. The main performance objectives for middle and high power SNPS designs is to achieve high efficiency while maintaining temperatures in the safe region to ensure reliable operation and the key contributors in this respect are the switches. MOSFETs are a very popular choice in these applications because they deliver higher switching frequencies and efficiency even lower load levels. ST's market leadership in MOSFET production over many years means that we have a very wide range of high voltage MOSFETs with various characteristics tailored for different applications. For systems connected to mains ST offers the recent M6 and DM6 product families featuring the proprietary MD mesh technology. This superjunction MOSFET family offers the best performance in soft switching applications. The M6 and DM6 family comes in a wide range of resistances and packages produced mainly for 600 volts and 650 volts. The turn-on resistance ranges from just above 30 milli ohm to almost one ohm. The M6 family includes devices intended principally for flyback designs with a 700 volt breakdown voltage. We tested the performance of the DM6 against its predecessor and its closest competitor in an LLC converter for a two kilowatt digital SMPS. The dark blue curve in the graph clearly demonstrates the superior performance of the DM6 at high and low loads thanks to improved internal structure and reduced switching losses. We also performed tests in a PFC converter operating in transition mode. This time comparing the M2 with two M6 devices to also highlight the performance differences as we move from low to high input voltages as a result of the tradeoff between switching and conducting power losses. Even the M6 device with a higher RDS on indicated by the yellow curve in the graph delivers a similar efficiency to the M2 device at low input voltage but thanks to stray capacitances it delivers the best efficiency at higher input voltages. Thank you for your attention. We hope you have found this presentation on ST microelectronic solutions for middle and high power switch mode power supplies informative and useful and we think you will agree that the best possible performance is achieved when you couple digital control with high quality switches which is why we firmly recommend using M6 family devices in your designs. Goodbye.