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Integrated led dimmer controller

A technology of dimmer and passive dimmer, which is applied in the field of driving LED lamps, and can solve problems such as occupying space

Active Publication Date: 2016-05-25
DIALOG SEMICONDUCTOR GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These parts take up a lot of space and require complex power circuits to provide proper power to each part

Method used

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  • Integrated led dimmer controller
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Embodiment Construction

[0017] The drawings and the following description relate to a preferred embodiment of the invention by way of illustration only. It should be noted, from the following discussion, that alternative embodiments of the methods and structures disclosed herein will be readily identified as feasible alternatives that may be employed without departing from the principles of the claimed invention.

[0018] Reference will now be made in detail to several embodiments of the invention, examples of which are illustrated in the accompanying drawings. It is to be noted that where applicable, similar or identical reference numerals are used in the figures to indicate similar or identical functionality. The drawings depict embodiments of the invention for purposes of illustration only. Those skilled in the art will readily appreciate from the following description that alternative embodiments of the methods and structures shown herein may be employed and illustrated without departing from th...

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Abstract

An integrated LED controller is disclosed that drives and reads passive dimmers and controls power circuits for LEDs. An integrated LED controller detects a change in the control position of the passive dimmer and causes the power circuit to brighten or dim the LED accordingly. These functions are typically performed by a number of discrete components. However, the integrated LED controller is implemented as a single integrated circuit, thereby reducing the size and cost of the LED dimming system. The integrated LED controller may 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.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application 61 / 672,680, filed July 17, 2012, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to driving LED (Light Emitting Diode) lamps, and more particularly to controllers for dimming LED lamps based on passive dimming devices. Background technique [0004] LED lights are employed in a variety of lighting applications. LEDs have significant advantages over conventional light sources such as incandescent and fluorescent lamps, including high efficiency, good directionality, color stability, high reliability, long life, small size, and environmental safety. [0005] When LED lights are used in place of incandescent lights with passive dimmers, several different components are required to perform tasks such as driving the dimmer, reading the output, and converting the dimmer curve. These components...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02H05B44/00
CPCH05B45/10
Inventor 严亮C·C·庞恩陈益民M·伊森汪传阳
Owner DIALOG SEMICONDUCTOR GMBH
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