Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ultraviolet light source system with light intensity automatic feedback correction function and application thereof

An ultraviolet light source and automatic feedback technology, which is applied in the field of ultraviolet light source system, can solve the problems of imperfect UV LED manufacturing process, affecting the use effect of ultraviolet LED, and fast light intensity attenuation and attenuation speed, so as to eliminate its own light attenuation and power supply current Changes, the effect of ensuring effectiveness

Inactive Publication Date: 2020-08-14
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the manufacturing process of UV LED is not perfect enough, and the light intensity attenuation is faster than that of blue LED or red LED during long-term work. The weakening of light intensity will inevitably affect the use effect of UV LED and reduce the performance in applications.

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
  • Ultraviolet light source system with light intensity automatic feedback correction function and application thereof
  • Ultraviolet light source system with light intensity automatic feedback correction function and application thereof
  • Ultraviolet light source system with light intensity automatic feedback correction function and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0021] The invention discloses an ultraviolet light source system with a light intensity automatic feedback correction function, comprising:

[0022] The power converter converts the electric energy of the power supply into an adjustable current for the ultraviolet light source;

[0023] A current collector, used to detect the input current value and feed it back to the inner loop controller;

[0024] Ultraviolet light source, emitting light intensity signal;

[0025] Photosensitive sensor, which converts the light intensity signal into an electrical signal and amplifies it and feeds it back to the outer loop controller;

[0026] The outer loop controller outputs the electric signal fed back by the photosensitive sensor...

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 invention relates to an ultraviolet light source system with a light intensity automatic feedback correction function and an application thereof. The ultraviolet light source system comprises a power converter, a current collector, an ultraviolet light source, a photosensitive sensor, a outer ring controller which is used for outputting an electric signal fed back by the photosensitive sensorand the set light intensity to an inner ring controller after operation, and the inner loop controller which is used for processing the electric signal fed back by the current collector and the signaloutput by the outer loop controller and then controlling the current value output by the power converter. According to the invention, the ultraviolet LED is controlled by using double loops, the change of system current and light intensity can be fed back in real time, the controller effectively adjusts the control end of the power converter, the influence of the light attenuation of the ultraviolet LED and the change of power supply current is eliminated, the constant output light power of the ultraviolet LED is ensured, and the use effectiveness of an ultraviolet light source is ensured.

Description

technical field [0001] The invention belongs to the technical field of semiconductors, in particular to an ultraviolet light source system with a light intensity automatic feedback correction function and its application. Background technique [0002] Ultraviolet LEDs are gradually replacing the position of mercury lamps, and continue to enter people's production and life, and are used in printing, medical treatment, plant lighting, water treatment, disinfection and other fields. However, the manufacturing process of UV LEDs is not perfect enough, and the light intensity attenuation is faster than that of blue LEDs or red LEDs during long-term work. The weakening of light intensity will inevitably affect the use effect of UV LEDs and reduce the performance in applications. [0003] In order to obtain a constant output of ultraviolet light intensity, it is necessary to carry out a control design on the ultraviolet LED. Contents of the invention [0004] In view of this, on...

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): H05B45/30H05B45/20H05B45/10
CPCH05B45/10H05B45/20H05B45/30
Inventor 闫建昌刘春岩王军喜李晋闽
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com