Circuit configuration having a resonant converter, and method for operating a resonant converter

US9608530B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Glenn Mueller · Chemnitz, DE
• Stephan Rupf · Sayda, DE

Key dates

• Filing date: Apr 30, 2014
• Grant date: Mar 28, 2017
• Expiry date: Mar 20, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y04S30/14
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A circuit configuration contains a resonant converter feeding energy into a primary winding of a transformer, a control circuit for controlling the resonant converter and a plurality of modules. The modules include a frequency generator controllable with variable frequency, a short circuit monitoring unit configured to protect components of the resonant converter, and an open circuit detection unit. The open circuit detection unit is configured to shut down the resonant converter if a secondary side interacting with the primary winding of the transformer is open circuit, without having information from the secondary side.