Invention Grant
- Patent Title: Load control device for a light-emitting diode light source
- Patent Title (中): 用于发光二极管光源的负载控制装置
-
Application No.: US13935799Application Date: 2013-07-05
-
Publication No.: US09253829B2Publication Date: 2016-02-02
- Inventor: Dragan Veskovic
- Applicant: Lutron Electronics Co., Inc.
- Applicant Address: US PA Coopersburg
- Assignee: LUTRON ELECTRONICS CO., INC.
- Current Assignee: LUTRON ELECTRONICS CO., INC.
- Current Assignee Address: US PA Coopersburg
- Agency: Condo Roccia Koptiw LLP
- Main IPC: H05B33/00
- IPC: H05B33/00 ; H05B33/08 ; H02M3/335

Abstract:
A load control device for controlling the intensity of a light source (e.g., a light-emitting diode light source) reduces visible flickering in the light source when a target intensity of the light source is dynamically changing. The load control device includes a load regulation circuit operable to conduct a load current through the electrical load and to control the amount of power delivered to the electrical load. The load control device also includes a controller for adjusting the average magnitude of the load current to a target current. The controller pulse-width modulates the magnitude of the load current between a first current less than the target current and a second current greater than the target current. When the target current is dynamically changing, the controller is operable to adjust to the average magnitude of the load current towards the sum of the target current and a supplemental signal.
Public/Granted literature
- US20140009085A1 Load Control Device for a Light-Emitting Diode Light Source Public/Granted day:2014-01-09
Information query