Protect And Enhance High-Power Designs With Integrated Solid-State Isolators
by Davide Giacomini, Infineon Technologies, Pavia, Italy and Sameh Snene Infineon Technologies, Munich Germany, How2Power Today, Mar 14 2025
Focus:
An integrated solid-state isolator (SSI) based on coreless transformer galvanic isolation
provides many design benefits. Unlike optical-based solid-state relays (SSRs), an
integrated SSI driver can provide the required isolation and energy transfer to ensure
proper operation and extended life for high-power systems as well as several integrated
protection features. In this 16-page article, the authors describe the features and
characteristics of Infineon’s integrated SSI drivers and then present a series of examples
demonstrating how these devices can be combined with power MOSFETs and other supporting
components to replace conventional DIN-rail and panel-mount SSRs. The calculations and
data required for selection of MOSFETs and other components, as well as calculation of
leakage current, are presented. The SSI plus power MOSFETs designs are compared against
the conventional SSRs they replace.
What you’ll learn:
- How to understand the benefits of Infineon’s integrated solid-state isolators versus conventional solid-state relays
- How to implement solid-state relays with galvanic isolation and protection features based on Infineon’s integrated solid-state isolators
View this Source (requires a PDF Viewer installed on your device)
© 2025 How2Power. All rights reserved.