Switch mode power supply with reduced switching losses

US6388287B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Gerald Deboy · Klagenfurt, AT
• Franz Hirler · Isen, DE
• Martin März · Borgo San Lazzaro, DE
• Hans Weber · Villach, AT

Key dates

• Filing date: Mar 12, 2001
• Grant date: May 14, 2002
• Expiry date: Mar 12, 2021

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10D62/393
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

The invention relates to a switching transistor presenting reduced switching losses. In the switching transistor, output capacitance is very high when drain/source voltages are low. As the drain/source voltage increases, the capacitance falls to such low values that the energy stored in the transistor becomes very low.