Patent · US Active

Circuit arrangement and method for operating discharge lamps

US8618739B2 · kind B2 · utility

0Cited by

8References

15Claims

0Family size

Assignee

OSRAM Gesellschaft mit beschraenkter Haftung · DE

Inventors

Alois Braun · Neubukow, DE
Walter Limmer · Birkenfeld, DE
Maximilian Schmidl · Pullach, DE

Key dates

Filing date	May 4, 2010
Grant date	Dec 31, 2013
Priority date	—
Expiry date	Sep 21, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH05B45/38
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit arrangement for operating discharge lamps is provided with an input, to which an AC system voltage from a power supply system can be connected, an output, to which at least one discharge lamp can be connected, a backup capacitance, which is arranged between the input and the output, and a switch, which is in a charging current path of the backup capacitance. The circuit arrangement may include a driver configured to clock the switch for a predetermined period of time when the circuit arrangement is switched on for periodically interrupting the charging current path of the backup capacitance.

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