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

A Mixed Modulation Isolated Three-way Output DC-DC Converter

A technology of DC-DC and mixed modulation, which is applied in the direction of output power conversion device, adjustment of electric variable, conversion of DC power input to DC power output, etc. It can solve the problems of not realizing mutual independence and isolation of output, and achieve reduction in volume and loss, reduced switching loss, and reduced current stress

Active Publication Date: 2019-08-13
ZHEJIANG UNIV
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technical content can easily realize soft switching and improve efficiency, but it does not realize mutual independence and isolation between outputs.

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
  • A Mixed Modulation Isolated Three-way Output DC-DC Converter
  • A Mixed Modulation Isolated Three-way Output DC-DC Converter
  • A Mixed Modulation Isolated Three-way Output DC-DC Converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] 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 the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0063] A hybrid modulation isolated three-way output DC-DC converter, including a parallel full-bridge LLC resonant circuit and two phase-shifted full-bridge circuits; the primary side of the full-bridge LLC resonant circuit is a full-bridge circuit structure, and the secondary side is a full-bridge circuit structure. Wave rectification circuit structure; the diodes used are all power diodes.

[0064] like figure 1 As shown, the primary side circuit includes:

[0065] 1) vs. input voltage V in The first primary side branch connected in parallel is composed of the firs...

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 discloses a hybrid modulation isolation type three-way output DC-DC converter, comprising: an input power supply; a parallel full-bridge LLC resonant circuit, adopting a frequency modulation method to convert the DC input voltage into a high DC output voltage, and the secondary side is full Wave rectification circuit structure; phase-shifted full bridge circuit, including a first branch and a second branch, the first branch is connected between any two bridge arms of the parallel full bridge LLC resonant circuit, and the adjustment method is adopted to adjust the The phase mode between the two bridge arms transforms the DC input voltage into the first low DC output voltage; the second branch is connected between the remaining two bridge arms of the parallel full-bridge LLC resonant circuit, and the The phase mode between the two bridge arms transforms the DC input voltage into the second lowest DC output voltage; the secondary side is a full-wave rectification circuit structure. The converter implements mutual isolation among the three outputs through two different control methods between the two bridge arms.

Description

technical field [0001] The invention belongs to the field of power electronics, and in particular relates to a hybrid modulation isolation type three-way output DC-DC converter. Background technique [0002] With the development of digital control technology, the power supply requirements for many new electrical equipment are getting higher and higher. Many electrical equipment require both high-voltage DC power supply and multi-channel low-voltage DC power supply for auxiliary systems and control systems during operation. powered by. If multiple input power sources are used for power supply, the size and cost of the system will be increased, which is not conducive to equipment integration. However, in the traditional multi-output circuit, several output voltages cannot be completely isolated and adjusted independently. When one of the output states fluctuates, it will have a greater impact on the other two outputs, which will seriously affect the overall stability of the s...

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): H02M3/335
CPCH02M3/33569H02M1/0067H02M1/0077H02M1/009Y02B70/10
Inventor 邓焰李广地夏晋陈桂鹏王昆
Owner ZHEJIANG UNIV
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