公开(公告)号：US09041307B1

公开(公告)日：2015-05-26

申请号：US14447425

申请日：2014-07-30

Applicant: RICHTEK TECHNOLOGY CORP

Inventor： Huan-Chien Yang ,  Shui-Mu Lin ,  Shei-Chie Yang ,  Shih Chung Wang

IPC: G05F1/00 ,  H05B33/08

CPC classification number: H05B33/0848

Abstract: A method for brightness control, adapted to a light emitting device emitting a light of an output brightness, comprises: setting the output brightness to be an initial value, and controlling the light emitting device emitting the light accordingly; setting a target value, and controlling the output brightness changing from the initial value toward the target value with the brightness changing rate of the brightness zone corresponding to the initial value; controlling the output brightness changing toward the target value with the following brightness changing rate when the output brightness crossing one of the brightness thresholds and entering the following brightness zone, wherein the following brightness changing rate corresponds to the following brightness zone; stopping changing the output brightness when reaching the target value.

Abstract translation: 一种用于亮度控制的方法，适用于发出输出亮度的光的发光装置，包括：将输出亮度设定为初始值，并相应地控制发光装置的发光装置; 设定目标值，并且以与初始值对应的亮度区域的亮度变化率，控制从初始值向目标值变化的输出亮度; 当输出亮度穿过亮度阈值之一并进入以下亮度区域时，控制输出亮度朝着目标值变化，具有以下亮度变化率，其中以下亮度变化率对应于以下亮度区域; 停止在达到目标值时改变输出亮度。