The series-input parallel-output dc-dc converter combination provides inherent sharing among the converters. With conventional controls, however, this sharing is unstable. Recent literature work proposes complicated feedback loops to correct the problem, at the cost of dynamic performance. This paper shows that a simple sensorless current mode control stabilizes sharing with fast dynamics suitable for advanced digital loads. With this control in place, a "super-matched" current sharing control emerges. Sharing occurs through transients, limited only by the energy limits of the converters. The control approach has considerable promise for high-performance voltage regulator modules. For even faster response, clamping techniques are proposed.
|Original language||English (US)|
|Number of pages||4|
|Journal||Proceedings of the IEEE Workshop on Computers in Power Electronics, COMPEL|
|State||Published - Dec 1 2004|
|Event||Proceedings of the 2004 IEEE Workshop on Computers in Power Electronics, COMPEL'04 - Urbana, IL, United States|
Duration: Aug 15 2004 → Aug 18 2004
ASJC Scopus subject areas