Patent · US Expired

Circuit for converting AC voltage into DC voltage

US6594165B2 · kind B2 · utility

39Cited by

4References

5Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Thomas Duerbaum · Eschweiler, DE
Georg Sauerlaender · Aachen, DE

Key dates

Filing date	Apr 9, 2002
Grant date	Jul 15, 2003
Priority date	—
Expiry date	Apr 9, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH02M1/12
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit for converting an AC voltage into a DC voltage for a device (RL), in which the AC voltage supplied is passed through a large induction coil (L50) and a rectifier (G), includes, on the output side the rectifier (G), two capacitors (C1, C2) connected in parallel, which are separated by a diode (D). In addition, the capacitor C1 positioned closer to the rectifier (G) is discharged, at least in part, via an active converter (20) in the second half of each power supply wave. As a result of which, the current consumption is widened and the system harmonics are reduced. Furthermore, the induction coil (L50) can be dimensioned correspondingly smaller, but can nevertheless meet the relevant standards.

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