High frequency excitation system

US7161818B2 · kind B2 · utility

Assignee

• Huttinger Elektronik GmbH + Co. KG · DE

Inventors

• Thomas Kirchmeier · Teningen, DE
• Wolfgang Oestreicher · Friedrichshafen, DE

Key dates

• Filing date: Jun 15, 2004
• Grant date: Jan 9, 2007
• Expiry date: Dec 26, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02B70/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A power module is adapted to be connected to a voltage source and to supply power to a load. The power module includes a switching bridge that includes a first power transistor and a second power transistor, a first gate controller for driving the first power transistor and a second gate controller for driving the second power transistor. The first gate controller includes a first gate transformer, and a leakage inductance of the first gate transformer forms a resonant circuit with an input capacitance of the first power transistor. The second gate controller includes a second gate transformer, and a leakage inductance of the second gate transformer forms a resonant circuit with an input capacitance of the second power transistor.