Patent · US Active

Circuit arrangement and method for controlling power converters

US8330443B2 · kind B2 · utility

2Cited by

8References

12Claims

0Family size

Assignee

OSRAM GmbH · DE

Inventors

Bernhard Ertl · Puchheim, DE
Torsten Kuske · Holzkirchen, DE

Key dates

Filing date	Mar 9, 2009
Grant date	Dec 11, 2012
Priority date	—
Expiry date	Jan 17, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B70/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit arrangement for controlling power converters with a microcontroller comprises a digitally controlled pulse width modulation unit having an output, at which a switching signal for switching a power converter switch is present, wherein the circuit arrangement has an analog circuit part for switching on a power converter switch if the voltage across the power converter switch is substantially zero. A method for controlling a power converter with a microcontroller that comprises a digitally operating pulse width modulation unit for regulating the power converter, said unit having an output, at which a switching signal for switching a power converter switch is present, wherein the power converter switch is switched on in the operating state of the quasi resonant mode of the power converter by means of a fast analog circuit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.