Supercharge Your Innovation With Domain-Expert AI Agents!

Interleaved PFC phase switching method and device and power supply

A phase switching and power supply technology, applied in the direction of output power conversion devices, electrical components, high-efficiency power electronics conversion, etc., can solve the problems of high switching loss, switching loss, etc., to ensure stability, improve reliability, and avoid switching loss Effect

Inactive Publication Date: 2021-03-23
东莞欧陆通电子有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current PFC converter is a hard switching conversion technology. Every time the MOS tube is turned on or off, switching loss will be generated. When using interleaved parallel PFC, although it can be improved when the load is heavy, when the PFC When the load is relatively small, it will generate higher switching losses

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
  • Interleaved PFC phase switching method and device and power supply
  • Interleaved PFC phase switching method and device and power supply
  • Interleaved PFC phase switching method and device and power supply

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0052] refer to figure 1 , figure 1 It is a schematic flowchart of an optional embodiment of each embodiment of the interleaved PFC phase switching method provided by the present invention.

[0053] Such as figure 1 As shown, the interleaved PFC phase switching method includes:

[0054] Step S101, acquiring the output power of the power supply.

[0055] Specifically, obtaining the output power of the power supply includes: obtaining an output signal of the power supply; and obtaining the output power of the power supply according to the output signal of the power supply.

[0056] Wherein, the output signal of the power supply includes: the output voltage of the power supply and the load current. According to the ou...

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 interleaved PFC phase switching method and device, and a power supply. The method comprises the steps of: obtaining the output power of a power supply; judging whether a switching condition is met or not according to the output power of the power supply; if so, outputting a switching instruction; and executing a phase switching process according to the switching instruction. According to the interleaved PFC phase switching method and device and power supply of the invention, single-phase operation can be quickly switched in during light load; two-phase operation canbe quickly recovered during heavy load; and therefore, the problem of switching loss caused by phase change can be avoided, the conversion efficiency of the power supply during light load can be improved, the stability of the power supply during heavy load can be ensured, the conversion efficiency and stability of the power supply can be effectively improved, and the reliability of the power supply can be further improved.

Description

technical field [0001] The present invention relates to the technical field of phase switches, and more specifically relates to an interleaved PFC phase switching method, device and power supply. Background technique [0002] With the rapid development and application of electronic technology, the popularization rate of various servers is getting higher and higher, and as the load on the server is getting higher and higher, the power requirements for the power supply of the server are also increasing. In the original 500W , The demand of about 800W also rises to more than 1000W and 1600W at the same time. Under the original design size, in order to reduce the size of power devices and reduce the ripple of power supply, more and more interleaved parallel technology is used. [0003] However, the current PFC converter is a hard switching conversion technology. Every time the MOS tube is turned on or off, switching loss will be generated. When using interleaved parallel PFC, al...

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
IPC IPC(8): H02M1/42
CPCH02M1/42Y02B70/10
Inventor 王越天陈辉
Owner 东莞欧陆通电子有限公司
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