 Welcome to this presentation on our Discrete IGBTs made using Trenchgate FieldStop or TFS technology. We will focus on the new 650V IH series of soft switching 20 to 60 kHz IGBTs tailored for induction heating applications. In this presentation we will discover ST's Discrete IGBTs series tailored for a large range of industrial applications with a particular focus on induction heating. We will then study the induction heating phenomenon and common topologies used to take advantage of its unique properties. Next we will introduce our new IGBTs series specifically dedicated to induction heating applications and look at benchmarks showing its improved performance. Finally we will go over all the support material dedicated to our IGBTs. Today our ST Power family offers a very complete portfolio of power products. Discrete IGBT products for applications ranging from 10 watts to 5 kilowatts and slim intelligent power modules for applications running from 20 watts to 3 kilowatts. Our wide ST Power portfolio ensures that engineers and developers will find an ideal solution for their industrial and robotic drives, home appliances, welding equipment, induction heating and solar power as well as every kind of industrial application. The Trenchgate FieldStop technology includes several benefits compared to planar punch through devices. The implanted back emitter and FieldStop ensure better control of dynamic behavior while the introduction of the Trenchgate structure improves performance and characteristics including lower conduction and switching losses, much higher robustness and a significant thermal resistance reduction due to the very thin die. Moreover the increased maximum junction temperature up to 175 degrees Celsius ensures a longer lifetime. This table summarizes all our discrete IGBTs made using Trenchgate FieldStop or TFS technology. Starting with our 600 volt H and V series for medium and very high frequency converters respectively, then the 650 volt M series for motor control and HP and HP2 series for high frequency converters, solar inverters and welding equipment and the IH series dedicated to induction heating and soft switching applications. Jumping to 1200 volt, there are the complementary S and M series for motor control, H series for high frequency converters and finally the 1250 volt IH series for induction heating. All these technologies are available with different packaging options from DICE to discrete packages, IPMs and power modules. Note that we are currently developing our HP2 and IH series. The nomenclature is very simple to memorize. After STG, the next digit refers to the package type, followed by the nominal current at case temperature of 100 degrees Celsius, then the IGBT series, breakdown voltage divided by tens, diode option and F identifies TFS technology. Finally, the technology generation. Designed to work in hard switching circuits up to 60 kilohertz, the 650 volt HB series ensures an optimum tradeoff between conduction and switching losses to maximize efficiency in applications including welding equipment, power factor correction or PFC circuits, uninterruptible power supplies or UPS and solar inverters. With a low saturation voltage and wide current range, this series offers three different diode options. Fast recovery for bi-directional inverters, protection diodes for PFC and low drop diodes optimized for induction heating applications. It is available in different packages including the four-lead TO247 package designed to reduce turn-on switching losses or EON. A step beyond the HB series is the HB2 series, which is optimized to work in high-frequency converters including solar inverters, uninterruptible power supplies, welding equipment, power factor correction or PFC circuits, etc. A low saturation voltage, lower gate charge and wide current range are the key features of these devices compared to the HB series. They are also available in different packages and automotive eligible. 40 amp devices with a protection diode are already available and at full maturity, while our 15 to 100 amp range of devices is currently in development. Induction is a flame-free no-contact heating method that uses electromagnetic energy to generate eddy currents within a metal. Its resistance leads to heating through the joule effect, but also generates losses due to hysteresis of magnetic material. Year over year this technology was used in different applications ranging from industrial, such as hard brazing, tin soldering and melting applications, to domestic, such as induction heating appliances and now also in the medical field for sterilizing instruments and non-invasive therapy. This approach offers advantages including reduced heating time, localized heating, controllability and repeatability of the heating process, high efficiency, improved quality and safety for the user. An induction cooker consists of a coil of copper wire placed underneath the cooking pot. An alternating electric current flows through the coil producing an oscillating magnetic field that in turn induces an electric current in the pot. Current flowing in the metal pot produces resistive heating which heats the food. The system can be approximated using an electric transformer where the primary is the copper coil into the induction cooker and the secondary the bottom layer of the pot. In order to improve the heat conversion efficiency, zero voltage switching or ZVS resonant converters are commonly adopted. Two topologies are suitable, half bridge series resonant and single switch quasi resonant. Used for high-end applications up to four kilowatts, the half bridge series resonant topology offers advantages like lower voltage across the switch, high robustness and higher power factor at full load. While the drawbacks include increased number of components and more complex design and driving stage. For this topology we recommend using the 600 volt HB series and the new 650 volt IH series. The single switch quasi resonant topology is used mainly for low-end applications up to 2.5 kilowatts. This topology offers advantages like only one single switch is needed, easy and economical solution and simple driving. But using a single switch means that a higher breakdown voltage is required and power is limited. The 650 volt IH series is dedicated to induction heating applications using a half bridge topology and for any soft switching application. It has a lower saturation voltage, low turn-off energy and low thermal resistance resulting in an improved efficiency in the final application. Two IGBT devices are available, 40 and 50 amps in a long lead TO247 package but also 20 and 30 amp devices will soon be available to cover a wider power range from one up to four kilowatts. The 1250 volt IH series is tailored to ensure the best performance in induction heating applications using a single switch topology such as rice cookers and inverter microwave ovens for a power range up to 2.5 kilowatts. This series has a saturation voltage equal to two volts, low thermal resistance and is available with two current ratings 20 and 30 amps in TO247 and TO3P packages. Now we will show some benchmarks comparing our devices against various competitors. All the test results refer to a generic pot for an induction cooker used in an ST lab modulating the input power from 2.5 up to 3.3 kilowatts. In a first test the new IH series was compared to the HB series. The IH series showed better results for both static and dynamic performance. The graph on the left side shows us the behavior of saturation voltage in relation to the current. It highlights the lower saturation voltage of the IH series which is relevant for conduction losses. While the graph on the right side shows us the turn off energy approximately 23% less which means a better switching performance. To complete the benchmark the total power losses are estimated. When using a 2.5 kilowatt input power the switching loss is about 25% while the rest is due to conduction loss. Thanks to better static and dynamic performance the 40 amp device in the IH series improves efficiency reducing total losses by about 12% and the case temperature by about 7 degrees Celsius. In this graph a benchmark against two main competitors having the same current capability is shown. The results show the good performance of ST's device almost aligned in total losses but keeping a slightly lower case temperature confirming our device as a competitive choice. Another benchmark was done focusing on our 50 amp device with a 3.3 kilowatt input power. As seen with the 40 amp device the same improvements result in 50 amps both in saturation voltage and turn off energy as shown in the left and right graphs where the new product is compared with a 60 amp HB series device. Note that if the saturation voltage has an impact in every load condition the turn off energy has an impact in conditions with up to 70% of load. The 50 amp device is tailored to target applications having about 4 kilowatts. In that condition when the device works at full load and maximum coupling the losses are mainly in conduction. Therefore the saturation voltage has a huge impact and leads to an increasing gap against the older HB series. The last benchmark compares our 50 amp device against 60 amp devices from our competitors in the same 3.3 kilowatt half bridge topology. Here our device leads in performance obtaining lower total losses and keeping a lower case temperature. The results of these tests confirms that engineers and developers of induction heating systems now have the possibility to increase efficiency thanks to our devices. Support material including flyers and technical notes is available from our website. You can also use our IGBT Finder app to easily download all the relevant data sheets in a single click. For additional information please visit www.st.com.