Title :
Light transformers for kilowattt SMPS based on nanocrystalline soft magnetic cores
Author_Institution :
Vacuumschmelze GmbH, Hanau, Germany
Abstract :
With high-performance IGBTs and advanced high frequency 1.2 Tesla soft magnetic alloys, switched mode power supplies (SMPS) can now be designed for the power range up to several 100 kW with a single transformer only. The weight-to-power ratio of transformers so far has reached a level of up to only 100 g/kW when using new nanocrystalline SiFe alloy VITROPERMTM at a switching frequency of typical 10-20 kHz. The result are quite compact and lightweight SMPS with excellent efficiency
Keywords :
switched mode power supplies; 1.2 T; 10 to 20 kHz; SMPS; SiFe; VITROPERM; high frequency soft magnetic alloys; high-performance IGBT; nanocrystalline SiFe alloy; nanocrystalline soft magnetic cores; switched mode power supplies; switching frequency; transformer;
Conference_Titel :
Power Electronics and Variable Speed Drives, 1998. Seventh International Conference on (Conf. Publ. No. 456)
Conference_Location :
London
Print_ISBN :
0-85296-704-7
DOI :
10.1049/cp:19980560