Latest News

This board is used to demonstrate the use of the Diotec DI280N10TL in a high-power delivery unit. It is capable of switching up to 80 A at 48 V in both directions. This makes it ideally suited for battery systems which need not only to supply power, but also to receive during the charging cycle. Current, Voltage, temperature and operating mode is displayed on an OLED display. Various other Diotec parts such as LDOs, small signal MOSFETs, Rectifier Diodes, Zeners and ESD protection diodes is also used on this module.

Sunshine and warm weather are perfect to stay outside. But when it comes to agriculture, and thus the way to create our daily food, long-lasting hot and dry periods lead to partial or even total losses of the crop. Artificial lakes are a good way to store rainwater during wet seasons and to distribute it onto the fields when required. Easy to be done in mountainous areas, where simple water channels can be used.

In plain countries, technical support is required for field watering. In the early days, windmills and later diesel engines drove the pumps. Nowadays, electric motors do the job. A perfect combination is electric pumps together with photovoltaic (PV) panels: Watering is needed when the sun is burning, and exactly then the PV panels create free energy. The electronic control of these pumps is a prerequisite for high motor efficiency and reliability, minimizing downtime and maintenance, but also energy consumption.

The fast-switching IGBTs DIW040F135 by Diotec play an essential role in the drive inverter of these pumps. Its low switching times predestine them for use in high-speed switching applications like this. They come in a TO-247 package for easy heatsink assembly and in consequence for a low operating temperature. The high Collector-Emitter voltage of 1350 V and the Drain current of 40 A make the parts perfectly suited for medium-power water pump drives.

The DIF120SIC053-AQ is a Silicon Carbide MOSFET by Diotec Semiconductor, dedicated to charging systems of electric vehicles. It features a high reverse voltage of 1200 V combined with an extremely low on-resistance of just 53 mΩ. It has a fourth, so-called Kelvin Source contact, which offers several benefits: Speeding up turn-on time, saving power losses, lowering faulty switching during turn-off, and allowing for easier driver circuitry.

The part comes in the TO-247 case outline for easy heat sink assembly and the possibility to operate in parallel for higher power demands. Typically four of these MOSFETs are used in an H-bridge configuration for the bidirectional input circuit, and two in the step-up/step-down converter for charging or discharging the battery. That could be either stationary or as an on-board charger since these parts are fully AEC-Q101 qualified.

You can find them at many filling stations: Fully automatic tools to fill up flat tires. You just type in the required air pressure, connect the tube to the car's tire, and press a button. All the rest is done automatically. The compressed air is generated by an electric air pump and stored in a tank. The pump motor is driven by full electronic drive inverters, allowing precise and energy-saving airflow control. Depending on the size and power rating, the compressor is either operated on single-phase or three-phase mains.

Diotec's DIW040F135 is a 40 A / 1350 V IGBT used in the drive inverter circuit. It offers a fast switching characteristic and low saturation voltage, both for saving energy and improving efficiency of the inverter stage. An integrated freewheeling diode helps to save board space and assembly costs. The part comes in standard TO-247 package for easy heat sink mounting and effective cooling.