Switching power supply controller and switching power supply containing same
A switching power supply and controller technology, applied in the direction of high-efficiency power electronic conversion, electrical components, output power conversion devices, etc., can solve the problems of the circuit power factor is not particularly good, the power factor is worse, the total harmonic distortion is large, etc. Achieve good power factor performance, improve power factor, and reduce total harmonic distortion
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0038]According to the formula (1) in the background technology, it can be known that the input current cannot completely follow the input voltage change due to the fixed on-time control, so in order to optimize the power factor and optimize the total harmonic distortion, the length of the on-time can be modified, Modify the fixed on-time length to the on-time length related to the input voltage and output voltage.
[0039] Furthermore, according to the formula (1), in order to achieve a better power factor, the input current needs to completely follow the change of the input voltage, so it is necessary to ensure Fixed, so as to improve the power factor, that is, the conduction time of the switch tube is related to the input voltage and output voltage.
[0040] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.
[0041] refer...
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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com