Patent · US Active

Apparatus and method for driving an LED

US8125273B2 · kind B2 · utility

2Cited by

6References

16Claims

0Family size

Assignee

TEXAS INSTRUMENTS DEUTSCHLAND GMBH · DE

Inventors

Dirk Muentefering · Großburgwedel, DE
Frank Gelhausen · Altwarmbüchen, DE
Oliver Piepenstock · Sulingen, DE
Andreas Bock · Neuss, DE

Key dates

Filing date	Apr 20, 2010
Grant date	Feb 28, 2012
Priority date	—
Expiry date	Apr 20, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH03F2203/45722
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Here, a driver for an light emitting diode (LED) is provided. Within this driver, several differential pairs of bipolar transistors are employed in an input stage and output stage along with a control loop. Collectively, these components operate together to drive the LED with a low headroom voltage while still achieving high driver performance in terms of edge speed and jitter.

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