MSc thesis project proposal

[2022] Large VCR Highly Efficient High Configurability Boost/Hybrid DC-DC Converter

DC-DC converters are used in most of electronic devices and they play key roles to deliver power from supplies to loads. They act as the main power valves to control the energy delivery and energy usage efficiency of the systems. Every electronics system has at least one integrated power converters and some may have several converters for multiple loads.

Despite recent advances on various DC-DC conversion techniques, off-chip inductors and flying capacitors are usually indispensable [1], which largely increase the system size, counter to miniaturization when employed in autonomous sensors and IoT applications. Although some work achieves fully integrated designs with inductors and capacitors implemented on-chip, the large on-chip inductance and capacitance make the chip area extremely large, which significantly reduces the power density [2]. Besides, the high-voltage on-chip devices limit the overall power conversion efficiency.

In this project, we are going to design a highly integrated, energy-efficient, configurable DC-DC converter with high power density targeting at powering autonomous wireless devices, personal electronic devices and sensors. The proposed converter can dynamically configure the conversion ratio while maintaining high efficiency according to power supply and demand levels.

[1] K. Wei, et al., "11.1 A Direct 12V/24V-to-1V 3W 91.2%-Efficiency Tri-State DSD Power Converter with Online VCF Rebalancing and In-Situ Precharge Rate Regulation," 2020 ISSCC, pp. 190-192

[2] P. H. McLaughlin, et al., "11.2 A Fully Integrated Resonant Switched-Capacitor Converter with 85.5% Efficiency at 0.47W Using On-Chip Dual-Phase Merged-LC Resonator," 2020 ISSCC, pp. 192-194

Assignment: 1. Literature review of hybrid boost converter topologies and associated power management circuits. 2. Design of a highly efficient CMOS circuit for the proposed boost DC-DC converter system. Tape-out is possible depending on the design and available time.

Assignment

1. Literature review of hybrid boost converter topologies and associated power management circuits.
2. Design of a highly efficient CMOS circuit for the proposed boost DC-DC converter system. Tape-out is possible depending on the design and available time.

Requirements

Sijun.Du@tudelft.nlYou should be familiar with analog IC design and Cadence environment. If you are interested, please send your CV, BSc transcripts and MSc grades (obtained to date) to Sijun Du at email: Sijun.Du@tudelft.nl

Contact

dr. Sijun Du

Electronic Instrumentation Group

Department of Microelectronics

Last modified: 2022-01-06