Transformer unit and method for operating a transformer unit

US10455676B2 · kind B2 · utility

Assignee

• Siemens Healthcare Limited · DE

Inventors

• Tobias Proell · Eckental, DE
• Josef Deuringer · Herzogenaurach, DE

Key dates

• Filing date: Nov 15, 2018
• Grant date: Oct 22, 2019
• Expiry date: Nov 15, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05G1/54
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A transformer unit includes a primary side including a primary coil wound around a transformer core and a secondary side including a secondary coil wound around the core. During operation, a secondary-side actual voltage is established upon application of a primary voltage to the primary coil. The transformer unit includes a first measuring coil, wound around the transformer core, to determine a first measuring voltage; a measuring element, arranged and designed on the primary side to determine a second measuring voltage, the second measuring voltage being correlatable with the additional secondary-side voltage drop; and a controller to control operation of the transformer unit, the controller being designed to adjust the primary voltage so as to induce a secondary desired voltage in the secondary coil, and adjust the primary voltage as a function of the first measuring voltage and the second measuring voltage.