Patent · US Active

Circuit unit

US8044607B2 · kind B2 · utility

0Cited by

4References

31Claims

0Family size

Assignee

OSRAM GmbH · DE

Inventors

Alois Biebl · Annweiler am Trifels, DE
Gunther Hirschmann · Munich, DE

Key dates

Filing date	Jun 5, 2007
Grant date	Oct 25, 2011
Priority date	—
Expiry date	Jun 24, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH05B45/3725
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a circuit unit for a semiconductor unit which produces radiation, with a forward voltage Uf being applied during operation to the semiconductor unit which produces radiation, and with a forward current If flowing through the semiconductor unit which produces radiation, with the circuit unit regulating the forward current If such that an actual value Vact which depends on the forward current If and the forward voltage Uf assumes a predetermined nominal value Vnom. The invention also relates to a radiation source.

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