Power Module
25. June 2025
Reading time: 10 Min.

Transient protection SIP-3

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ANS023 Landing Page

In industrial environments, transient overvoltages are a common problem that can lead to significant damage and system failures. AppNote ANS023 provides a comprehensive guide to developing an efficient filter that limits these surges.

Learn more about the theoretical principles and practical implementation of a two-stage filter concept that includes both noise immunity and emission filtering. With a combination of transient suppression diodes (TVS diodes) and passive LC filters, you can protect your systems from high transient overvoltages and ensure compliance with the maximum operating voltage of the DC/DC converter.

The ANS023 offers detailed calculation steps and practical tips for selecting and dimensioning the filter components. The effects of the ambient temperature on the filter performance are also taken into account to ensure optimum functionality.

 

Content:

  •  Introduction and theoretical background
  •  Origin of the transients
  •  Two-stage filter concept
  •  Limits of the immunity filter
  •   Step-by-step design of a two-stage filter for a SIP-3 power module with a Vin of 36V

 

Download: ANS023

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