Control circuit for a switch unit of a clocked power supply circuit, and resonance converter

US7746671B2 · kind B2 · utility

Assignees

• Infineon Technologies AG · DE
• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Matthias Radecker · Duisburg, DE
• Fabio Bisogno · Sankt Augustin, DE
• Michael Herfurth · Gilching, DE

Key dates

• Filing date: May 18, 2006
• Grant date: Jun 29, 2010
• Expiry date: Apr 3, 2028

Classification

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

Abstract

The invention involves a control circuit for a switch unit of a clocked power supply circuit, the switch unit being designed to effect input-side excitation of a resonant transformer arrangement, and comprises an input for receiving an auxiliary signal from the resonant transformer arrangement. The invention also includes a resonance converter that enables independent control of frequency and turn-on moments, or duty cycle, and thus enables a particularly efficient operation of the resonance converter, and a particularly precise regulation.