Patent ID: 6952355

Claim:
A two stage converter comprising: a power factor corrected flyback converter (PFCFC) having a feedback circuit connecting a boosted DC output to a power factor controller; said power factor corrected flyback converter further comprising a magnetic element operating in a non-saturated region (NSME); said PFCFC having a zero hold time silicon carbide diode in parallel with a high speed flyback diode; an AC input comprising an inrush limiter, line filter rectifier and a transient protection diode which feeds an input to the PFCFC; a buffer circuit providing a low impedance gate drive to a main switch transistor of the PFCFC; and said PFCFC having a regulated DC output to an inrush controller; an inrush controller sub-circuit having an input from a thermal switch which functions to provide an over-temperature shutdown; said inrush controller having an output to a push pull converter; said push pull converter having a controller which provides a duty cycle and frequency; said push pull converter having a rectifier circuit; said power factor corrected flyback converter providing a variable DC signal to said push pull converter; said push pull converter further comprising a magnetic element operating in a non-saturating region (NSME).