The use of
low permeability magnetic material (NSME) with the disclosed design strategies form a two-stage isolated output converter
system with the distinct advantages of superior density, efficiency, thermal operating bandwidth, service life, transient survival, and form factor flexibility over the prior art. These improvements are realized by, optimized application of NSME, efficient rectifying flyback management techniques, inclusion of switching buffers that substantially reduce switching losses. The instant invention provides
power factor correction, output regulation, inrush limiting, over
voltage, over current, over temperature, and transient protection, multi-converter
load sharing, hot swapability, and fault signals.The disclosed
system is designed, specified, and certified to function from −40 deg. C. to +65 deg. C. from a 180 vac to 264 vac 50 / 60 Hz input line and supports 1000 watts of output or 600 watts from 90 vac to 120 vac 50 / 60 Hz line input at greater then 0.95
power factor and features a packaged
power density of 14 watts per cu. in. at high line.