Application Considerations of Multiphase Monolithic Buck Regulators with Coupled Inductors

Power delivery requirements for computing applications have continuously grow over the years to keep up with more complex and demanding processing capabilities. The electronics industry increasingly see up to and beyond 100A power rail and microseconds transient recovery requirements for applications in wireless, healthcare, defense, industrial, and automotive industries. This thesis investigates multiphase design and application for monolithic buck switching regulators to multiply output current for low-voltage and power-intensive applications. In particular, the research incorporates coupled inductors to take advantage of its magnetic coupling between different phases to achieve minimal output ripples and ultra-fast transient response. The results of this research emphasize performance differences in control loop and transient response, output ripple, efficiency, and thermal performance when using discrete and coupled inductors at fixed output capacitance in a multiphase step-down application.

Name thesis:degree_name

Master

Department dc:contributor.department

Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2023

Author dc:creator

• Nguyen, My Uyen Tran

Advisors dc:contributor.advisor

• Perreault, David J.
• Liang, Xinyu

Statement dc:rights

• In Copyright - Educational Use Permitted
• Copyright retained by author(s)

Licence dc:rights.uri

• https://rightsstatements.org/page/InC-EDU/1.0/

Handle dc:identifier.uri

https://hdl.handle.net/1721.1/151548

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/151548