AbstractThe use of switched mode power supplies in trackside and railway applications is considered, with particular emphasis on the selection process for determining long-term high reliability.Keywordsreliabilityswitched mode power suppliesisolationregulatorsGet full access to this articleView all access options for this article.Get accessReferences1. Hnatek E. R. Design of solid state power supplies, 1981 (Van Nostrand Reinhold, New York).2. Shepard D. Power supplies, 1984 (Reston Publishing, New York).