Bi-directional resetting scheme of the magamp post-regulator

A simple bi-directional magamp control scheme is proposed. The scheme effectively reduces the influence of the time delay, or dead time of magamp core on the output voltage regulation at extreme load conditions. The scheme is very useful in the converters with magamp as post-regulator to eliminate the dead time of the magamp core due to the squareness of the core materials and to extend the load variation range.

[1]  Wei Chen,et al.  Magamp post regulation for flyback converter , 2001, 2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230).

[2]  Harry Owen,et al.  Modeling the frequency-domain behavior of magnetic-amplifiercontrolled high-frequency switched-mode power supplies , 1987, 1987 IEEE Applied Power Electronics conference and Exposition.

[3]  M. M. Jovanovic,et al.  Small-signal modeling of magamp PWM switch , 1997, PESC97. Record 28th Annual IEEE Power Electronics Specialists Conference. Formerly Power Conditioning Specialists Conference 1970-71. Power Processing and Electronic Specialists Conference 1972.