Operation reliability of on-board DC/DC-modules exposed to high magnitude electromagnetic fields

Due to the rapid development of communications networks, as for instance mobile telephony, voice/data and Internet, reliable and disturbance free data processing and transmission are becoming increasingly important. In a mobile telecom system a large number of disturbances can be attributed to radiated electromagnetic emissions from various equipment. Therefore, the measurements of power units immunity to the outside-radiated electromagnetic field are of great importance today. The GTEM cell (gigahertz-transverse-electro-magnetic cell) was used in testing the immunity of on-board DC/DC-modules to the radiated electromagnetic emission. Finally, the paper presents the experimental data on high magnitude electromagnetic field impact on different onboard DC/DC modules.