This paper provides an optimization process of a 100-W three-level flying capacitor totem-pole PFC in USB TypeC Power Delivery (PD) for aircraft applications. The switching frequency and PFC inductor current ripple are varied to set the PFC inductance variation range and design the differential mode (DM) and common mode (CM) filter to meet the EMI requirement in the DO-160 standard. The design process for all the magnetic components is described with results at different switching frequencies and current ripples. The total volume and loss for all cases with both single-stage and two-stage filters are plotted and compared. Pareto fronts for the two cases are drawn to show the optimal design parameters for the application.

Design of Three-Level Flying Capacitor Totem Pole PFC in USB Type-C Power Delivery for Aircraft Applications

This paper provides the extra loss caused by
dynamic ON-Resistance in a soft-switching converter seeking to
incorporate it into the design process, studying its dependence on
temperature and switching frequency. Firstly, characterization
is conducted in double-pulse tests to verify some impact factors
which may vary in converter operation. Different operation
modes, hard-switching, soft-switching, and reverse conduction at
various temperatures, can be achieved using the full-bridge
schematics with an extra resistor. Secondly, a series resonant
converter is built based on the same testbed and an additional 16.8% conduction loss was observed in the worst case.

Dynamic ON-Resistance Characterization of GaN HEMT Under Soft-Switching Condition

Session Chairs: Jason Zhang and Nabil Akel

2.D GaN Applications – 2

technical paper

Download the proceedings [here](https://underline.io/events/372/lounge)
 
 
 The IEEE Workshop on Wide Bandgap Power Devices & Applications (WiPDA) provides a forum for device scientists, circuit designers, & application engineers from the Power Electronics & Electron Devices Societies to share technology updates, research findings, experience & potential applications.
 
 **Topics of interest**
* Heteroepitaxial & Bulk Materials Growth
* Gate Dielectrics & Surface Passivation
* Device Structures & Fabrication Techniques
* Device Characterization & Modeling
* Very-High Efficiency Or Compact Converters
* Safe Operating Areas Of Wide Bandgap Devices, including Short Circuit, Spike, &Transient Tolerance
* Harsh Environment (High Temperature) Operation & Reliability
* Packaging Power Modules & ICs
* Gate Drive & Other Auxiliary Circuits
* High-Performance Passive Components
* Hard-Switched & Soft-Switched Application Analysis
* Applications in Renewable Energy & Energy Storage, Transportation, Industrial Drives, Grid Power Systems, Space and Aerospace
* Wide Bandgap System Design Philosophies & Strategies
* Radio Frequency (RF) GaN
* Technology Roadmap of Wide Bandgap Including Devices, Applications and Packaging

You must register to attend this event. If you haven't done so already, please use the link below to register for the event. All registered attendees will have access to the event site on November 4th.

Registration Is Required

IEEE WiPDA 2022

The IEEE Workshop on Wide Bandgap Power Devices & Applications (WiPDA) provides a forum for device scientists, circuit designers, & application engineers from the Power Electronics & Electron Devices Societies to share technology updates, research findings, experience & potential applications.

**Session Chairs:**
 
 Babak Parkhideh, University of North Carolina - Charlotte, United States
 Andrew Binder, Sandia National Laboratory, United States

Virtual Poster Session 1: GaN Power Devices 3

poster

The IEEE Workshop on Wide Bandgap Power Devices & Applications (WiPDA) provides a forum for device scientists, circuit designers, & application engineers from the Power Electronics & Electron Devices Societies to share technology updates, research findings, experience & potential applications.

**Topics of interest**

* Heteroepitaxial & Bulk Materials Growth
* Gate Dielectrics & Surface Passivation
* Device Structures & Fabrication Techniques
* Device Characterization & Modeling
* Very-High Efficiency or Compact Converters
* Safe Operating Areas of Wide Bandgap Devices, Including Short Circuit, Spike, & Transient Tolerance
* Harsh Environment (High Temperature) Operation & Reliability
* Packaging Power Modules & ICs
* Hard-Switched & Soft-Switched Application Analysis
* Gate Drive & Other Auxiliary Circuits
* High-Performance Passive Components
* Applications in Renewable Energy & Energy Storage, Transportation, Industrial Drives, & Grid Power Systems
* Wide Band Gap System Design Philosophies & Strategies
* Radio Frequency (RF) GaN (New)
* Technology Roadmap of Wide Bandgap Including Devices, Applications and Packaging (New)

### Please select the button below to view and download the session papers. The Virtual Proceedings PDF can be downloaded [here.](https://drive.google.com/file/d/171y2_u63V-pc9-bC-eZgHLzJou2oCfST/view?usp=sharing)

[![](https://assets.underline.io/uploads/markdown_image/1/image/c8e1b0a2881d3bb0a75ece4761f43c9f.png)](https://drive.google.com/drive/folders/1GWEFLzH6K4aUBaJiBFJDw4x9sKLTl6-g?usp=sharing)


This event requires a registration to attend, please register [here](https://web.cvent.com/event/536cea3d-4c0d-4d50-8939-529979d80785/summary) to purchase a ticket. 

Tianyu Zhao

2

1

SHORT BIO

Presentations

Design of Three-Level Flying Capacitor Totem Pole PFC in USB Type-C Power Delivery for Aircraft Applications

Dynamic ON-Resistance Characterization of GaN HEMT Under Soft-Switching Condition

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