Overvoltage Protection for Power Semiconductors in Solid-State DC Breakers for BESS and Datacenter Applications

Learn how TVS diodes protect power semiconductors in solid-state DC breakers through surge thermal modeling, with insights on switching behavior, packaging, and design optimization.

Role of TVS Diodes in Solid-State DC Breakers

Surge Events and Thermal Stress in Power Semiconductors

Simulating TVS Performance During Surge Events

Impact of Switching Dynamics and Device Packaging

Influence of Layout and Parasitic Inductance on Clamping Performance

Best Practices for Optimizing Externally Placed TVS Diodes

White Paper Overview

This white paper reviews the effective use of Transient Voltage Suppression (TVS) diodes in solid-state DC-breaker applications and their constraints. The thermal behavior under surge conditions is simulated, and insights are provided into how the switching behavior of the power semiconductor and its packaging influence the effectiveness of a TVS diode. Finally, suggestions are offered for optimizing externally placed TVS diodes to protect the power semiconductors at large.