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

Electronic ballast for high voltage sodium lamp

A technology for electronic ballasts and high-pressure sodium lamps, applied in the field of ballasts, can solve problems such as difficulty in quality assurance

Active Publication Date: 2013-06-12
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the complex circuit does not mean stability and also brings difficulties to the quality assurance in the production process

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
  • Electronic ballast for high voltage sodium lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0008] Such as figure 1 The schematic block diagram of the electronic ballast for high-pressure sodium lamps is shown. The electronic ballast with AC 220V input from the power supply 1 first passes through the EMI filter circuit 2 realized by the combination of common-mode inductors and capacitors, and then enters the rectification and active power factor correction circuit 3. The bridge rectifier and bridge pair are converted...

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 a high-voltage sodium lamp electronic ballast; the ballast comprises an EMI filter circuit, a ballast circuit and an APFC circuit, an independent driving circuit, an LC oscillatory circuit and a starting and triggering circuit, a current sampling magnetic ring and a MCU controller. The high-voltage sodium lamp interface is equipped with the current sampling ring, the MCU controller measures whether the sampled current is high (the lamp loop is short circuited) or low (the lamp loop is open), a comparator discovers the abnormal state of the lamp output loop in time, and the high and low driving circuits are closed within half control-driven cycle. Compared with the protection adopted on the forestage of the circuit, the protection measurement of the proposal is adopted, which is more effective and safer; in addition, the starting and triggering is shut after 3 seconds, which prevents that the long-time triggering caused by the open circuit of the lamp can damage other electronic parts.

Description

technical field [0001] The invention relates to a ballast, in particular to an electronic ballast used in a high-pressure sodium lamp. Background technique [0002] The rise of the green lighting industry in the world makes electronic ballasts popular. Relevant enterprises have all spotted the huge business opportunities hidden in electronic ballasts. In particular, the energy-saving potential hidden in the high-pressure sodium lamp is more concerned by everyone. The high-pressure sodium lamp (HPS lamp) is a high-intensity gas discharge lamp (HID lamp) with excellent performance. Its advantages are high luminous efficiency, long life, and good light color. , so it is widely used. According to statistics, if all high-pressure gas discharge lamps in the country are replaced with electronic ballasts, 24.6 billion kWh of electricity can be saved throughout the year, which can solve the current 1 / 3 of the country's electricity shortage. Therefore, many designers in the field o...

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 Patents(China)
IPC IPC(8): H05B41/292H05B41/288
CPCY02B20/208Y02B20/204Y02B20/00
Inventor 叶传良宋若槑
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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