Title :
Sheared loop amorphous magnetic material for switching power supplies
Author :
Martis, R.J. ; Rogers, D.W.
Author_Institution :
Amorphous Metals, Allied-Signal Inc., Parsippany, NJ, USA
Abstract :
A sheared loop core of a Co-based amorphous alloy is used as a high frequency transformer in a push-pull type topology. Design examples at 50 kHz and 250 kHz are shown. Magnetic properties such as DC B-H loop, DC bias characteristics, permeability as a function of frequency as well as core losses are measured and shown to be superior to those of `F´ ferrite
Keywords :
cobalt alloys; ferrites; high-frequency transformers; iron alloys; magnetic properties of amorphous substances; metallic glasses; power transformers; switched mode power supplies; 250 kHz; 50 kHz; DC B-H loop; DC bias characteristics; METGLAS alloy 2705M; amorphous magnetic material; core losses; design; ferrite; high frequency transformer; magnetic properties; permeability; push-pull topology; sheared loop; switching power supplies; Amorphous magnetic materials; Amorphous materials; Core loss; Frequency; Magnetic cores; Magnetic properties; Magnetic switching; Permeability; Topology; Transformer cores;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1994. APEC '94. Conference Proceedings 1994., Ninth Annual
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-1456-5
DOI :
10.1109/APEC.1994.316394
