Unlock instant, AI-driven research and patent intelligence for your innovation.

Control circuit of LED lighting apparatus

A technology of light-emitting diodes and control circuits, which is applied in lighting devices, electroluminescence light sources, lamp circuit layout, etc., can solve problems such as reducing the user's sense of use and increasing user fatigue, and achieves reducing flickering, improving flickering, and lifespan or power drop to minimize the effect of

Inactive Publication Date: 2015-11-25
SILICON WORKS CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Flicker occurs when all LED channels are temporarily turned off and is known to reduce user experience and increase user fatigue

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control circuit of LED lighting apparatus
  • Control circuit of LED lighting apparatus
  • Control circuit of LED lighting apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. This disclosure may, however, be embodied in various forms and should not be construed as limited to only the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be complete and thorough, and will fully convey the present invention to those skilled in the art. public scope. Throughout the present disclosure, like reference numerals refer to like parts in the drawings and examples.

[0034] The embodiments described in this specification and the structures shown in the accompanying drawings are preferred embodiments of the present invention, and do not represent all technical ideas of the present invention. Therefore, from the perspective of this application, there may be alternatives to the described implementations. Various equivalents and modified examples of the examples.

[0035] The embo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided is a control circuit of a light emitting diode (LED) lighting apparatus which is capable of reducing a flicker while performing a lighting operation using a rectified voltage. The control circuit may include a charge and discharge module charged to perform a charge operation using a rectified voltage and a discharge operation for LED channels, and the charge and discharge module may provide a discharge current to the LED channels during a discharge period including the lowest current point at which the level of the current supplied to the plurality of LED channels is the lowest. Thus, a flicker of the LED lighting apparatus can be reduced.

Description

technical field [0001] The present invention relates to a light-emitting diode (LED) lighting device, and more particularly to a control circuit of the LED lighting device, which utilizes a rectified voltage to perform lighting and can reduce flicker. Background technique [0002] In order to save energy, the development trend of lighting technology is to choose light-emitting diodes as light sources. [0003] HBLEDs differ from other light sources in aspects such as power consumption, lifetime, and quality of light. [0004] However, a problem with a lighting device using light emitting diodes as a light source is that a large amount of additional circuits are required due to the characteristic that the light emitting diodes are driven by a constant current. [0005] An example of a lighting device developed to solve the above problems may include an AC direct-type (ACDIRECT-TYPE) lighting device. [0006] Generally, an AC direct-type LED lighting device is designed to re...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02H05B44/00
CPCH05B37/02H05B45/48H05B47/10H05B45/345H05B45/3725H05B45/395Y02B20/30H05B45/00
Inventor 金容根文耿植
Owner SILICON WORKS CO LTD