Patent · US Active

LED double-capped lamp, for operation on an electronic ballast for a low-pressure discharge lamp, especially a fluorescent lamp, and method for operating such a lamp

US10349477B2 · kind B2 · utility

1Cited by

2References

9Claims

0Family size

Assignee

LEDVANCE GMBH · DE

Inventors

Arwed Storm · Dachau, DE
Xusheng Yang · Nanhu, CN
Andreas Mitze · Traunreut, DE
Peter Hummel · Offenbach, DE

Key dates

Filing date	Sep 30, 2016
Grant date	Jul 9, 2019
Priority date	—
Expiry date	Sep 30, 2036

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B20/30
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A double-capped LED lamp operates on an electronic ballast for a low-pressure discharge lamp. The lamp has a first lamp cap having at least one first lamp connection, a second lamp cap having at least one second lamp connection, and an LED driver unit, which is electrically coupled between the first lamp connection and the second lamp connection, for activating a plurality of LEDs on the basis of a lamp voltage supplied by the electronic ballast between the first lamp connection and the second lamp connection in a first operating state. The lamp comprises a switching element for the galvanic separation of the first lamp connection from the LED driver unit in a second operating state, and an activation device for switching at least from the second operating state into the first operating state according to the lamp voltage.

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