Intensity control of LEDs interfacing three-way sockets

US9155152B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9155152-B2
Application numberUS-201514617685-A
CountryUS
Kind codeB2
Filing dateFeb 9, 2015
Priority dateJun 28, 2013
Publication dateOct 6, 2015
Grant dateOct 6, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A light-emitting diode (LED) lighting fixture is configured to interface a three-way socket and provide at least two levels of output light intensity. A detection unit determines whether one or both input voltages lines of the three-way socket are active and provides a control signal to an LED controller indicating which input voltage lines are active. The LED controller is configured to provide different output current levels to an LED bank based on whether one or both input voltage lines are active. By adjusting the output current level based on which input lines are active, the LED lighting fixture provides at least two output lighting intensity levels. LED lighting fixtures according to various embodiments can therefore serve as a direct replacement for three-way incandescent bulbs.

First claim

Opening claim text (preview).

What is claimed is: 1. A light-emitting diode (LED) lighting fixture configured to receive signals from a first input voltage line and a second input voltage line, the LED lighting fixture comprising: an LED bank including one or more LEDs; and an LED controller configured to detect whether the first and second input voltage lines are active and to provide regulated current to the LED bank, the LED controller configured to: provide regulated output current at a first level to a…

Assignees

Inventors

Classifications

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9155152B2 cover?
A light-emitting diode (LED) lighting fixture is configured to interface a three-way socket and provide at least two levels of output light intensity. A detection unit determines whether one or both input voltages lines of the three-way socket are active and provides a control signal to an LED controller indicating which input voltage lines are active. The LED controller is configured to provid…
Who is the assignee on this patent?
Dialog Semiconductor Inc
What technology area does this patent fall under?
Primary CPC classification H05B45/10. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Oct 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).