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Rohm opens European test lab for power components


New facility can characterise a wide range of devices including SiC diodes and MOSFETs, and systems such as power converters under real application conditions

Rohm Semiconductor has established a new 'Power Lab' at its European HQ facilities at the Willich-Muenchheide location near Dusseldorf.

The 300m² lab's purpose is the analysis of power components and systems to provide the customers with the best support at the application level. To that end, the test lab is equipped with several test benches with a separate high voltage area.

"Electric vehicles, charging station infrastructure, industrial machinery, solar and wind power plants as well as white goods such as washing machines require more and more power semiconductors to comply with the energy efficiency requirements, which have to be tested and validated at early stage of the development phase", explains head of the Power Lab Aly Mashaly, manager power systems department.

"Because there were no suitable test benches on the market, we decided to develop and design the test benches based on our own requirements subsequently. In this way, we ensure the high scalability of the test benches and their flexibility for future modifications."

The test benches have the state-of-the-art laboratory equipment using latest technologies with high safety features.

Rohm can electrically characterise all of its semiconductor components like SiC MOSFET transistors, SiC diodes, IGBT, silicon power MOSFET transistors and gate drivers, just to name some of them, with voltages up to 8000VDC.

The power test bench enables the tests on AC/DC, DC/DC, DC/AC and AC/AC converters under real application conditions up to 15kVA. Additionally, high-precision measurements of efficiency and losses can be performed with power analysers. Among this test bench's special features are an AC power supply (grid emulator) and electronic loads (AC and DC). Maximum voltages under test are 1500VDC and 400VAC.

The calorimetric test bench is for analysing the thermal behavior of the power discrete devices, modules, electronic boards and complete power electronics systems. This test bench can test at very high current supplies with hundreds of Amps and has a climatic chamber for tests under special temperature conditions ranging from -40degC to +180degC. Humidity can be set between 10 and 98 percent.

The high voltage test bench for voltages up to 8000V, is located in a separate room to protect the tester during the operation.

Rohm can also investigate and test the insulation sections, so called "clearance and creepage distances" on board and system level up to 6000V.

"We are proud to efficiently assist the projects of our customers with state of the art equipment. This investment shows our determination to be one of the major suppliers in SiC and Si Power discrete and integrated device technologies, thus to play an important role in the growing power market," says Christian André, president Rohm Europe. "The new Power Lab is a central piece of our quality and reliability scheme."

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