Optimizing Single and Multi-Port USB PD 3.1 Power Supplies Using ZVS Flyback

Explore the cutting-edge synergy of Zero-Voltage Switching, GaN switch technology, and advanced SR FET control in power adapter design, achieving efficiency beyond 95%, eliminating heatsinks and potting materials, and simplifying development to meet USB PD 3.1 EPR and UFCS charging standards while unlocking growth opportunities in high-power USB PD adapters and embedded Type-C power ports.

This webinar was originally held on February 21st, 2024, and is now available for on demand viewing.


Duration: 1 hour

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There is relentless pressure to reduce the size of power adapters. Aftermarket equipment makers are demanding higher efficiency and IC designers are responding by providing new products with Zero-Voltage Switching (ZVS) and advanced SR FET control married to GaN switch technology. We will describe how cost-effective designs with efficiency exceeding 95% allow designers to eliminate heatsinks, spreaders, and potting materials while reducing part count, further reducing size, component cost and manufacturing complexity. We will also explore how integration of the switch and controller, isolated feedback and secondary controller with an I2C interface simplifies development and ensures solutions meet the demanding requirements of USB PD 3.1 Extended Power Range (EPR) and UFCS charging standards for worldwide applications.

Key Take-Aways:

  • Understand market trends and growth opportunities for high power USB PD adapters and embedded Type-C power ports
  • Get details on latest product offerings from Power Integrations for USB PD 3.0 and 3.1 EPR
  • Design considerations for highly efficient and compact single and multi-port adapters for notebook, after market, gaming, gateways etc.
  • Learn about latest reference designs and related tools to accelerate your next design


Adnaan Lokhandwala
Senior Product Marketing Manager

Adnaan is a senior product marketing manager at Power Integrations. He has more than 20 years of experience in the power semiconductor industry. Prior to PI, Adnaan worked at Texas Instruments and International Rectifier. Adnaan holds a Master’s Degree of Electrical Engineering from the University of Illinois focused on power electronics and ASIC design.

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