Patent · US Active

Integrated LED dimmer controller

US9326343B2 · kind B2 · utility

10Cited by

2References

23Claims

0Family size

Assignee

DIALOG SEMICONDUCTOR INC. · DE

Inventors

Liang Yan · Milpitas, US
Clarita Poon · Pleasanton, US
Yimin Chen · Lo Wu, CN
Mark Eason · Hollister, US
Chuanyang Wang · Campbell, US

Key dates

Filing date	Jul 10, 2013
Grant date	Apr 26, 2016
Priority date	—
Expiry date	Jan 23, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH05B45/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An integrated LED controller drives and reads a passive dimmer and controls a power circuit for the LED. The integrated LED controller detects changes in the position of the passive dimmer and causes the power circuit to brighten or dim the LED accordingly. These functions are normally performed by multiple discrete components. However, the integrated LED controller is implemented as a single integrated circuit, thus reducing the size and cost of the LED dimming system. The integrated LED controller can also include a unified timing controller that coordinates the timing of multiple functions within the controller in a manner that reduces the noise sensitivity of the controller.

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