Patent · US Active

Power supply unit, light emitting apparatus and dimming method thereof

US8330384B2 · kind B2 · utility

0Cited by

6References

18Claims

0Family size

Assignees

EXSCITRON GmbH · DE
EVERLIGHT ELECTRONICS CO., LTD. · TW

Inventors

Winfried Beyer · Chemnitz, DE
Rene Franzky · Chemnitz, DE
Stephan Gruber · Chemnitz, DE
Rico Schulz · Rixbeck, DE

Key dates

Filing date	Apr 9, 2010
Grant date	Dec 11, 2012
Priority date	—
Expiry date	Dec 4, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH05B45/382
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A power supply unit with a dimming function which is adapted for a light emitting apparatus including a power system is provided. The power supply unit includes at least one output channel, a power stage, a detecting unit, and a micro controller unit (MCU). The power stage receives a first output of the power system and provides a first signal. The detecting unit detects a second output of the power system and provides a second signal. The MCU receives the first signal and the second signal, controls the at least one output channel, and is programmed to set a dimming ratio for the at least one output channel according to the first signal and the second signal. Furthermore, a light emitting apparatus and a dimming method are also provided.

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