Power integrated circuit for LED lighting
A technology for LED lighting and integrated circuits, which is applied in the layout of electric lamp circuits, electric light sources, lighting devices, etc., can solve the problems of short lifespan, large volume and efficiency of capacitors, and large volume of electrolytic capacitors, achieve size miniaturization, prevent overall deterioration, Life-enhancing effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0028] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
[0029] In order to solve the above-mentioned problems caused by the use of electrolytic capacitors or transformers in the prior art, the integrated power supply integrated circuit for LED lighting of the present invention and the integrated power supply integrated circuit for LED lighting of the present invention only use PWM to drive the lighting LED. For this reason, the present invention sequentially lights and extinguishes the LED groups based on the Vf value of the plurality of LED groups (120-1 to 120-4) connected in series and the voltage value of the input power supply that is not smoothed after rectification. Lights (120-1~120-4).
[0030] In addition, in order to prevent excessive current from flowing in the LED groups 120-1 to 120-4 due to the application of excessive voltage to the plurality of LED groups 120-1 to 120-4, the present invention not only s...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap