Title :
Highly efficient, 1 megahertz magnetic amplifier requires low cost, nonsquare loop material
Author :
Attwood, Brian E. ; Peterson, Allan L.
Author_Institution :
PWM Systems, Horsham, UK
Abstract :
Utilizing a pedestal voltage input, flux preset scheme, low cost linear ferrite material can be used successfully in low loss magnetic amplifiers operating in the megahertz region. This results in simplified and rugged main or auxiliary outputs on high frequency power supplies. The scheme presented in this paper overcomes self-starting problems and transfers power efficiently over the entire on-time of the power switch
Keywords :
ferrite devices; magnetic amplifiers; magnetic flux; power supplies to apparatus; switching circuits; 1 MHz; flux preset scheme; high frequency power supplies; low cost linear ferrite material; low loss magnetic amplifiers; magnetic amplifier; nonsquare loop material; pedestal voltage input; power switch on-time; power transfer; self-starting; Amorphous magnetic materials; Circuits; Costs; Ferrites; Frequency; Magnetic flux; Magnetic materials; Power supplies; Pulse width modulation; Voltage;
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.1994.316402
