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The BMS ensures the safety, longevity, and optimal performance of the battery in the e-vehicle. It helps extend the electric range to 500 kilometers and beyond in modern vehicles. This means that many vacation areas in Italy can already be reached without charging from southern Germany. Typically, the BMS consists of a battery management unit (BMU), sensors, a power stage, and a battery disconnect unit (BDU). The BMU monitors the battery's voltage, current, temperature, and state of charge, while the sensors provide data to the BMU. It also controls the charging process, either through a high-power DC connection or the on-board charger (OBC). The BDU disconnects the high-voltage battery from the vehicle when it is not in use. Diotec's latest application note addresses discrete semiconductor solutions for BMS, such as power MOSFETs, load dump protection, TVS diodes, Schottky, Zener, ESD diodes, and voltage regulators.

Summer is the perfect season to make the most of the power of the sun. Not only our immune system is activated, photovoltaic systems are also in top form - just like the PV systems on the roofs of the Diotec headquarters in Germany. Silicon carbide Schottky diodes, like the SICW20C120 can reduce losses in the solar inverter.

Solar inverters convert the direct current (DC), generated by solar panels, into alternating current (AC). The power electronics switch high voltages at very high frequencies; the switching losses in the required freewheeling diodes and IGBTs become dominant here. Schottky diodes based on silicon carbide (SiC) can be designed for very high blocking voltages. They offer a reverse recovery time of almost zero (more correctly one would have to speak of the capacitive discharge time). This leads to significantly reduced switching losses, both in the diode itself and in the IGBT. The SICW20C120, from Diotec is a 2x 10 A / 1200 V SiC Schottky diode in a TO-247 package. Their capacitive storage charge is typically only 41 nC, which ensures the desired fast switching time and thus a reduction in switching losses.

Especially for summertime, more and more people are switching to e-bikes as an environmentally friendly alternative to the car, both for commuting to work and for leisure. In Germany alone, 2.2 million e-bikes were sold in 2022. The Power MOSFET DI100N10PQ from Diotec is used in the drive of high-performance e-bikes.

The success of the e-bike is essentially based on the development of lithium-ion batteries. The most powerful motors would hardly be of interest if the battery would not provide the system with important energy over many kilometers. An advanced e-biker needs a drive with around 300 to 400 watts and a torque of up to 85 Nm. Diotec's latest power MOSFETs DI100N10PQ, are the perfect solution for controlling the brushless DC motors used here. They offer a drain current of up to 100 A at a drain-source voltage of 100 V. The RDS(on) of only 4.5 mΩ ensures low losses and thus a longer battery life. And the QFN5x6 package guarantees that the six components used per drive take up very little space.

Diotec is not only celebrating its 50th anniversary this year, but also 20 years as an exhibitor at PCIM Europe under the management of Mesago Messe Frankfurt. In fact, Diotec has had a booth at PCIM in Nuremberg, the leading international trade fair for power electronics, since 1982.

Our trade fair design was of course all about "50 years of Diotec". The golden 50 was, as on our Selection Guides, also very present on the booth. The fair offered us an excellent opportunity to present our latest innovations such as our silicon carbide diodes to a wide audience.

A particular highlight of the fair is the opportunity to meet our existing customers face-to-face and exchange ideas with them about their experiences with our products. It was exciting to hear how our solutions help to optimise their processes and increase their efficiency. At the same time, we were able to convince new potential customers of the benefits of our products and make promising business contacts.

A big thank you to all visitors, customers, colleagues, business partners and friends who made this year's PCIM Europe such a success. Your interest in our products and your trust in our company is our motivation.

We look forward to more exciting projects and the opportunity to further expand our partnerships. If you have any questions about our products, please do not hesitate to contact us: https://diotec.com/en/headquarters.html