Name
Title | ||
|---|---|---|
Design Principles of a Symmetrically Coupled Inductor Structure for Multiphase Synchronous Buck Converters |
Abstract | ||
|---|---|---|
The multiphase interleaved synchronous buck converters with coupled phase inductors are being preferred for voltage regulator modules requiring low output voltage, high output current, and fast transient response since they simultaneously offer better steady-state efficiency and faster dynamic response. In this paper, a novel magnetic core structure for symmetrical coupling of multiphase buck converter phase inductors is proposed, which overcomes several limitations of asymmetrical inductor coupling proposed so far. A new analytical technique to arrive at simple dynamic equivalent circuits of the converter, as well as design guidelines for the proposed inductor structure, is presented. Experimental results from a prototype four-phase synchronous buck converter with the proposed inductor demonstrate 2% to 6% improvement in the converter efficiency compared to a similarly rated converter with uncoupled inductors while retaining the same transient performance. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1109/TIE.2010.2048830 | IEEE Transactions on Industrial Electronics |
Keywords | Field | DocType |
equivalent circuits,magnetic cores,power convertors,power inductors,transient response,asymmetrical inductor coupling,coupled phase inductors,dynamic equivalent circuits,dynamic response,efficiency 2 percent to 6 percent,fast transient response,four-phase synchronous buck converter,magnetic core structure,multiphase buck converter phase inductors,multiphase interleaved synchronous buck converters,steady-state efficiency,symmetrically coupled inductor structure,voltage regulator modules,Coupled inductor,synchronous converter,voltage regulator module (VRM) | Transient response,Boost converter,Control theory,Inductor,Control engineering,Electronic engineering,Ćuk converter,Magnetic core,Engineering,Buck converter,Voltage regulator,Buck–boost converter | Journal |
Volume | Issue | ISSN |
58 | 3 | 0278-0046 |
Citations | PageRank | References |
1 | 0.47 | 2 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| N. Narayana | 1 | 1 | 0.47 |
| D. Kastha | 2 | 11 | 6.87 |
| A. Patra | 3 | 57 | 6.14 |