 Hi, imam Giuseppe and today I'm going to talk about two new reference systems for power factor or corrector converters. The first solution I'll describe is the STDES vienerect, based on a 15 kW vienerectifier, and the second STDES PFC bider is based on a 15 kW bi direction rectifier, both of are based on our silicon carbide power devices and digital microcontrollers. STDES has long experience on technology innovation, and consolidated system expertise in power conversion and energy management. We offer an extensive range of products, including high efficiency power devices based on silicon carbide, analog ICs, digital controller and MCU dedicated for digital power conversion. We believe it is important to put ourselves in the customer's shoes and create system that they really need, so we are engaged in creating a comprehensive range of reference design, hardware and software evolution tools. Let's focus now on this new reference design and their main features. So, here is a quick overview. The STDES vienerect is a mixed signal controlled 3 phase converter, based on a TN type 2 rectifier topology, to target high efficiency with a reduced bill of material. The power converters allow unidirectional power flow with power factor correction operations in 3 phase maids, providing a regulated DC output voltage. This can be the front end block of any industrial high power applications, like DC charging station and electrical drives. It can also be used for automotive application for high power and board chargers. Now you can see here the power board as we implemented with red sensing and driver circuit and a control board for the digital IC with preloaded control firmware. High-high voltage auxiliary power supply is provided of the power board, high-med 2 power, or the low voltage circuit. So, let's focus a little more. The power board, which has been designed for 15 kW output power with 400 input AC voltage. It includes Z-power MOSFET and ZIC diode. The MOSFETs are driven by galvanically isolated gate driver STGAP2S. The low switching losses combined with a stable on resistance of the ZIC power MOSFETs are low as switching frequency and high efficiency with a benetical impact on the overall performance of the system. The control board is based on ST and G388K, which combines the high performance digital PWM peripherals, namely state machine event driver, with external analog parts for the high speed current control loop. The control algorithm is based on a mixed signal architecture. The current loop is implemented by means of analog control circuit while the output voltage regulation is provided by a digital loop, taking into account the different dynamic of the two loops. We are very satisfied with the result we have achieved in the lab, where with respect to the efficiency we have 98 plus percent and power factor NTHD 0.99 and below 5 percent respectively. Now moving to the ST-SPFC bider, which is a purely digital controlled three-phase converter based on a three-level T-type topology. This topology allows bi-directional power flow with a CDC or the CSC operations. In a CDC operations it provides power factor control functionality with a related DC output voltage, while in the CDC operations is able to reverse the DC energy into the grid or to supply an AC load. It is well suited for charging station and onboard charger for B2G applications. So, looking a bit closer at the ST-SPFC bider, reference design, it consists of a power board implementing the power topology with related sensing and the driver in circuit and a control board for the 32 microcontroller with preloaded control firmware. A high voltage auxiliary power supply is provided having to power all the low voltage circuits. The power board is also equipped with the input relays for grid connection in case of DC-SC applications. So, let's go into more details on the component of each of this board. The power board has been designed for 15 kilowatts output power with 400 AC input voltage. It includes 650 volts and 1200 volts, sik power MOSFETs. The MOSFETs are driven by galvanica-isolated grid driver, ST-EP2S. The low switching losses, combined with a stable on resistance of the sik power MOSFETs, allow a switching frequency and high efficiency with a beneficial impact on the overall performance of the system. The control board is based on ST-M32G4MCU with high performance digital PWM peripherals, namely a resolution timer and additional functional block of power conversion, such as Cordic 4 trigonometric functions. This reference design is able to provide the bi-directional energy flow. In a CDC operation, the control algorithm based on a DQ axis reference frame performs input current control with power factor control using the coupling emitter in the inner loop and the DC output voltage in the outer loop. Reversing the energy flow from DC to AC, the outer loop is modified in order to control input power transferred to AC network, the grid or any AC load. Check out the ST-S VNRECT and ST-S PFC by the web page on ST.com. You can find all design related documentation, schematic, bill of material, layout and firmware source code under software license agreement. This board has been developed to accelerate your project with sik devices, reducing the same time and shortening the time to market.