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Professor Robert Pilawa-Podgurski's Research Group at UC Berkeley

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Awards

Pilawa Research Group Researchers Recognized at APEC 2025

March 20, 2025 by Dennis Woo

Three researchers from the Pilawa Research Group received prestigious awards for outstanding oral and poster presentations at the 40th IEEE Applied Power Electronics Conference (APEC 2025), held in Atlanta, GA. APEC is the premier conference in power electronics, attracting leading experts worldwide.

Syed Tahmid Mahbub, a second-year EE Ph.D student advised by EECS Professor Robert Pilawa-Podgurski, received the Best Oral Presentation Award for his talk titled “Analysis and Implementation of Minimum-Sensor Capacitor Voltage Estimators for Flying Capacitor Multilevel Converters.”

Nagesh Patle, a third-year EE Ph.D student advised by EECS Professor Robert Pilawa-Podgurski, earned the Best Poster Presentation Award for his work on “Achieving Soft-Charging and Over 20% Input Current Ripple Reduction in a 48-to-6 V Dickson Converter Using 3-Phase Split-Phase Control.”

Yicheng Zhu, a postdoctoral scholar and EECS alumnus, advised by EECS Professor Robert Pilawa-Podgurski, was recognized with the Best Oral Presentation Award for his talk titled “Design-Oriented Modeling and Multi-Objective Optimization of Two-Phase Coupled Inductors in Multiphase PWM Converters.”

The APEC Best Presentation Awards recognize outstanding contributions based on several criteria: the quality and design of presentation slides, the clarity and effectiveness of delivery, and the presenter’s ability to engage with and respond to audience questions.

Filed Under: Awards

Pilawa Group wins First Best Place Demo Award at ECCE!

November 1, 2024 by Nagesh Patle

Graduate students Logan Horowitz, S. Tahmid Mahbub, Jiarui Zou, and Professor Robert Pilawa-Podgurski have received a First Best Place Demo Award at the recent 2024 IEEE Energy Conversion Congress & Expo. Their innovative thermal test vehicle design provides a dynamic platform that simulates the heat generation of high-performance GPUs and CPUs, allowing engineers to evaluate cutting-edge cooling technologies with greater precision. By improving the efficiency and effectiveness of data center cooling, the project will contribute to energy savings and sustainability for next-generation, hyper-efficient data centers.

Filed Under: Awards

BPEC Director Robert Pilawa-Podgurski Elevated to IEEE Fellow

November 1, 2024 by Nagesh Patle

BPEC Director Robert Pilawa-Podgurski was elevated to IEEE fellow in the 2024 class, “For contributions to hybrid switched capacitor power converters”. IEEE Grade of Fellow is conferred by the Board of Directors upon a person with an extraordinary record of accomplishments in any of the IEEE fields of interest. The total number of fellows selected in any one year does not exceed one-tenth of one percent of the total voting Institute membership. Robert received his award at IEEE ECCE in Phoenix this past year. This is a great recognition of the all the hard work by past and present BPEC students!

Filed Under: Awards

Yicheng Zhu receives Teaching Effectiveness Award

October 17, 2024 by Dennis Woo

EECS grad Yicheng Zhu has received a Teaching Effectiveness Award for 2024.

The Graduate Division’s Teaching Effectiveness Award for GSIs honors those who devise solutions to teaching or learning problems they have identified in their classes and write them up in a one-page essay. These essays are published on the GSI Center website for use by instructors.

Zhu’s essay, “Fostering Student Engagement: The Power of Live Class Demonstrations,” emphasizes his approach to enhancing student engagement in large lecture formats. Through the implementation of interactive group activities and targeted feedback mechanisms during the 2023 semester, he successfully created a more inclusive environment that encouraged student participation and fostered a deeper understanding of the material.

Yicheng Zhu is a postdoctoral scholar and Bakar Innovation Fellow advised by Robert Pilawa-Podgurski.

Submitted by nluechin on October 17, 2024

https://eecs.berkeley.edu/news/vivek-bharadwaj-and-yicheng-zhu-receive-teaching-effectiveness-award/

Filed Under: Awards

Francesca Giardine and Kelly Fernandez win Best Paper Award at ECCE – Europe

September 5, 2024 by Dennis Woo

Graduate students Francesca Giardine, Kelly Fernandez (PhD, Fall 2023), along with Dr. Robert Pilawa-Podgurski have won Best Paper Award at IEEE Energy Conversion Conference and Expo – Europe.

They presented A Two-Stage Non-Isolated Hybrid Switched-Capacitor Microinverter Utilizing a Fixed-Ratio Resonant DC-DC Stage with Startup Functionality and Flying Capacitor Multilevel DC-AC Stage. Their work demonstrated a 500W two-stage microinverter solution for residential scale solar that uses exclusively hybrid switched-capacitor converter topologies to convert a 35V DC voltage to a 240V AC voltage. The hardware prototype achieved a competitive power density and efficiency, meeting the growing need for compact solutions for residential-scale renewables.

The paper was presented at ECCE – Europe in Darmstadt, Germany. ECCE brings together academics and industry professionals from around the world to exchange ideas about the energy transition. The best papers were chosen based on the quality of the technical results, paper, and presentation.

Submitted by Sarah Douglas on September 5, 2024

https://bpec.berkeley.edu/pilawa-group-graduate-students-win-best-paper-award-at-ecce-europe/

Filed Under: Awards, Conferences

Rahul Iyer and Tahmid Mahbub Win Best Paper Award at IEEE INTELEC 2024

August 23, 2024 by Dennis Woo

Rahul K. Iyer, S. Tahmid Mahbub, and Robert C.N. Pilawa-Podgurski have won the Best Student Paper Award at the 2024 IEEE International Communications Energy Conference (INTELEC) for their paper “Quasi- Two-Level Switching for Active Balancing of Flying Capacitor Multilevel Converters Under Light-Load Conditions” (https://ieeexplore.ieee.org/document/10678933/)

Recent work in the Pilawa group has highlighted the design of “active-balancing” controllers to ensure the safe operation of high-performance Flying Capacitor Multilevel (FCML) converters during system transients. This work builds on broader efforts to study the converter dynamics and design stable high-bandwidth controllers. In particular, this work highlights techniques to ensure stable converter operation when the load current is small. Compared to prior work relying on Phase-Shifted Pulse-Width Modulation, the proposed switching scheme enables active balancing at average load currents approaching and equal to zero. The conference paper and oral presentation given at IEEE INTELEC 2024 highlight the proposed switching and control methods and showcase the practical implementation of the controller on industry-standard digital signal processor hardware.

They are continuing to work on additional characterization of the balancing controller at different operating conditions, and aim to apply the proposed technique to demonstrate safe startup of the converter at light-load conditions.

Submitted by Sarah Douglas on October 20, 2024

https://bpec.berkeley.edu/rahul-iyer-and-tahmid-mahbub-win-best-paper-award-at-ieee-intelec-2024/

Filed Under: Awards, Conferences

Berkeley EECS researchers win Best Showcase Award at the ARPA-E Energy Innovation Summit

June 14, 2024 by Berkeley Engineering

EECS graduate students Logan Horowitz, Syed Tahmid Mahbub, Jiarui Zou, and Professor Robert Pilawa-Podgurski have received a Best Showcase Award at the 2024 ARPA-E Energy Innovation Summit. In collaboration with a team from the University of Illinois Urbana-Champaign and other academic and industry partners, the Berkeley team developed technology that aims to drastically improve the efficiency of future data centers. Their work focused on the design of a thermal test vehicle (TTV) for assessing cooling solutions.

The ARPA-E Energy Innovation Summit convenes experts from different technical disciplines and professional communities to address America’s energy challenges. The Summit offers a unique, three-day program, highlighting cutting-edge ideas with the most potential for meaningful impact.

From left to right: Jiarui Zou, Tahmid Mahbub, Logan Horowitz, and Prof. Robt Pilawa-Podgurski demonstrating their thermal test vehicle (TTV).

Submitted by Gloria Tao on June 14, 2024

https://eecs.berkeley.edu/news/berkeley-eecs-researchers-win-best-showcase-award-at-the-arpa-e-energy-innovation-summit/

Filed Under: Awards

Prof. Robert Pilawa-Podgurski Receives 2024 Spark Award from Bakar Fellows Program

May 21, 2024 by Dennis Woo

Prof. Robert Pilawa-Podgurski has received the 2024 Spark Award from Bakar Fellows Program, with Dr. Yicheng Zhu as his Innovation Fellow. Their awarded research proposal, titled “Powering the AI Revolution: A New Voltage Regulator Enabling Direct 48-V-to-1-V Vertical Power Delivery for Next-Generation Ultra-High-Power Processors,” aims to make use of innovative tools and techniques designed in Prof. Pilawa’s lab to develop a hybrid switched-capacitor voltage regulation module for ultra-high-power processors that can achieve a 2x reduction in power conversion losses and a 4x reduction in physical size compared to state-of-the-art commercial products. This could reduce overall data center power usage by almost ten percent, benefiting both the environment and businesses.

The Bakar Fellows Program has been committed to expanding access to entrepreneurship since its inception in 2012, providing funding, resources, and mentorship to faculty, graduate students, and, most recently, undergraduates. This year marks the beginning of a new partnership with the Academic Innovation Catalyst (AIC), a new deep tech funding platform founded by Matt and Lisa Sonsini. Initially, AIC will join forces with the Bakar Fellows program to allocate grants to Berkeley faculty immersed in deep technology exploration, particularly in climate technology. Grant recipients will receive $300,000 over three years for market research, prototype development and other commercialization activities, in line with the standard Bakar Fellows award amount and duration. AIC envisions expanding this pilot initiative across UC Berkeley and beyond, fostering innovation on a broader scale within the academic community. The inaugural recipients of the AIC grants are Robert Pilawa-Podgurski, a UC Berkeley Electrical Engineering & Computer Sciences professor, and Zakaria Al Balushi, a UC Berkeley Materials Science and Engineering assistant professor.

Filed Under: Awards

Yicheng Zhu Receives Ross N. Tucker Memorial Award

April 26, 2024 by Dennis Woo

EECS grad Yicheng Zhu has received a Ross N. Tucker Memorial Award for 2024.

The Tucker Award is given to recognize superior work and scholarship in the characterization, development and/or use of semiconductor, magnetic, optical or electronic materials by a graduate student or students pursuing such areas of inquiry. This award memorializes Dr. Ross N. Tucker, who contributed significantly to the advancement of the technology of materials used in semiconductor electronics. More details about this award can be found on the EECS Department website. Yicheng’s thank you video can be viewed here. (edited) 

Filed Under: Awards

Ben Liao wins Best Presentation Award at 2024 IEEE PECI

April 19, 2024 by Robert Pilawa-Podgurski

EE researcher Ben Liao, working with Professor Robert Pilawa-Podgurski, has received the Best Presentation Award at the 2024 IEEE Power and Energy Conference at Illinois (PECI) – a student-directed power and energy conference held annually at the University of Illinois at Urbana-Champaign. The PECI Best Presentation Award is determined both by conference directors and input from attendees.

Ben received the Best Presentation Award for his work on designing and building a high-power, electronically-controlled, modular resistive load bank. The proposed design overcomes testing limitations in commercial solutions when characterizing state-of-the-art converters. The architecture can easily be extended and modified to suit various other applications where an electronically-controlled resistive load is desired. For more information, please consult the full paper, available at this link.

Ben Liao (left) accepts the Best Presentation Award at 2024 IEEE PECI from Conference Co-Directors Anubhav Bose (center) and Raya Mahony (right).

Filed Under: Awards

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