Patent · US Expired

Series resonant converter comprising a control circuit

US6351401B1 · kind B1 · utility

31Cited by

7References

10Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Thomas Scheel · Stolberg, DE
Christian Hattrup · Würselen, DE
Olaf Martens · Hamburg, DE

Key dates

Filing date	Aug 23, 2000
Grant date	Feb 26, 2002
Priority date	—
Expiry date	Aug 23, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S323/901
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a series resonant converter (1) comprising a control circuit (8) for controlling the output voltage of the converter.To improve the behavior of the converter, it is proposed that the control circuit (8) is provided for processing a first actual value (Uout), which depends on the respective converter output voltage (uout(t)) and for processing a second actual value (UC), which depends on the respective current (ires(t)) flowing through the series resonant circuit elements (C, L, R) of the converter (1), and that the control circuit (8) is provided for delivering a correcting variable (u) determining the scanning ratio of a pulse-width modulated voltage (upwm(t)) delivered to the series resonant circuit of the converter.

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