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

LED light modulator, LED light modulation method and LED driving device

A technology of LED dimmer and LED drive, which is applied in lighting devices, electroluminescent light sources, light sources, etc., and can solve the problems of dimmers or LED drive devices with complicated circuit structures, poor reliability, and increased circuit costs. , achieve the effect of reducing circuit cost, improving reliability and reducing interference

Active Publication Date: 2016-10-26
HANGZHOU SILAN MICROELECTRONICS
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the power supply and carrier signal transmission requirements of each module must be taken into account, the circuit structure of both the dimmer and the LED driver is complicated, resulting in increased circuit costs and poor reliability.

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
  • LED light modulator, LED light modulation method and LED driving device
  • LED light modulator, LED light modulation method and LED driving device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. In the various figures, identical elements are indicated with similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale. Also, some well-known parts may not be shown.

[0035] In the following, many specific details of the present invention are described, such as device structures, materials, dimensions, processing techniques and techniques, for a clearer understanding of the present invention. However, the invention may be practiced without these specific details, as will be understood by those skilled in the art.

[0036] The invention can be embodied in various forms, some examples of which are described below.

[0037] figure 2 A schematic block diagram of an LED dimming system according to an embodiment of the present invention is shown.

[0038] The LED dimming system includes a dimmer 210 , an...

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

The present invention discloses a LED light modulator, a LED light modulation method and a LED driving device. The LED modulator comprises: a zero-crossing detection module configured to detect the zero-crossing time of alternating input voltage to generate zero-crossing detection signals; a time-relay module configured to generate starting signals according to the zero-crossing detection signals; a light modulation data generator configured to generate monopulse signals according to the starting signals; and a modulator configured to superpose the alternating input voltage and the monopulse signals to generate electric power carrier signals so as to control the bright and / or color of the LED light. The light modulator perform signal pulse modulation to generate electric power carrier signals in each half power frequency period so as to reduce the cost of a circuit and improve the reliability.

Description

technical field [0001] The invention relates to light source control technology, and more specifically, to an LED dimmer for an LED lamp, an LED dimming method and an LED driving device. Background technique [0002] When a light-emitting diode (light-emitting diode, LED) is used in the lighting field, an LED dimming device is used to adjust the brightness to meet the individual needs of users or adjust the light according to environmental requirements to reduce energy consumption. The brightness and color temperature of the LED can be adjusted by using the LED dimming device to meet the needs of users. [0003] The LED dimming device adopts, for example, a traditional thyristor dimmer. However, the thyristor dimmer has the problem of maintaining inconsistent current, and the products of different countries and brands are also different, which is prone to the problem of dimmer compatibility. In addition, phenomena such as flickering will also appear during the dimming proc...

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): H05B33/08H05B44/00
CPCH05B45/00
Inventor 蔡拥军叶美盼林继认林星宇
Owner HANGZHOU SILAN MICROELECTRONICS
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com