A non-isolated voltage regulator module with integrating coupled-inductor

作者：Liu XC^*; Zhang B; Yu JS; Gallagher J; Feng JG

来源：36th Annual IEEE Power Electronic Specialists Conference (PESC 05), 2005-06-12 To 2005-06-16.

DOI：10.1109/PESC.2005.1581661

• VRM
• integrating coupled-inductor

With lower output voltage and higher output current demands, today's VRM is almost based on interleaved multiphase Buck converter, which requires strictly steady and dynamic performances to supply microprocessor. In this paper, a non-isolated multiphase VRM with integrating coupled magnetic is introduced to reduce magnetic component and Improve steady state and dynamic performances. All these magnetic components can be coupled into a single ferrite core. By proper designing the gap of integrating coupled-inductor, this novel technique can greatly improve the performances of VRM with fast transient response and high efficiency. The simulation and experimental results of two-phase VRM show that integrating coupled-inductor can improve VRM's steady and dynamic performances, compared with the conventional VRM.

• 单位
  华南理工大学