Power factor correction circuit with high-voltage semiconductor component

US6819089B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Gerald Deboy · Klagenfurt, AT
• Dirk Ahlers · Hersbruck, DE
• Helmut Strack · Hersbruck, DE
• Michael Rueb · Faak am See, AT
• Hans Weber · Villach, AT

Key dates

• Filing date: Aug 1, 2003
• Grant date: Nov 16, 2004
• Expiry date: Aug 1, 2023

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10D64/519

Abstract

A switching power supply including a power factor correction circuit comprises a rectifier, an inductor coupled in series with the rectifier, a semiconductor switch formed by a compensation device coupled in parallel with the rectifier and the inductor. The output circuit comprises a diode coupled in series with a capacitor both coupled in parallel with the semiconductor switch. An input current sensor, and a control unit for controlling the compensation device are provided.