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

Push-pull converter and method for power supply device and uninterrupted power supply system

A power supply, push-pull technology, applied in conversion equipment with intermediate conversion to AC, control/regulation system, DC power input conversion to DC power output, etc., can solve problems such as high conduction loss

Inactive Publication Date: 2005-03-09
DELTA ELECTRONICS INC
View PDF0 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the selection of the resonance depth of this circuit is very important, otherwise it will lead to higher conduction loss

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
  • Push-pull converter and method for power supply device and uninterrupted power supply system
  • Push-pull converter and method for power supply device and uninterrupted power supply system
  • Push-pull converter and method for power supply device and uninterrupted power supply system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] On the basis of fully studying the discharge characteristics of the battery, the present invention first clarifies a special working mode very suitable for the DC-DC converter in the UPS system. According to this working mode, a method of using the transformer excitation current to realize the zero-voltage switching of the primary side circuit of the Push-Pull converter is proposed when the UPS system is heavy-loaded, or when the battery is light-loaded and the battery is in the late stage of discharge, which reduces the switching time of the circuit. Loss, contribute to the improvement of UPS system efficiency.

[0045] Special working mode of DC-DC converter in UPS system:

[0046] For the DC-DC converter in the UPS system, its output does not need to be stabilized within a certain range, and the stability of the UPS output voltage can be guaranteed by the post-stage inverter. According to this concept, a special working mode of the DC-DC converter in the UPS system ...

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

This invention provides a zero-voltage switch push-pull converter and a method for continuous supplying power system of a power source supplier, in which, the converter includes a transformer containing a primary winding with a central tap and a secondary winding, an electric energy storage supply device, one end of which is connected with the central tap of the primary winding, the other end to the earth, a first master switch element, the first end of which is linked to the first end of the primary winding, and the second to the earth, a second master switch element, its first end to the earth, the second to a second end of the primary winding and a commutating circuit connected to the second winding to convert AC to DC provided by it to let the primary circuit element switch at zero voltage.

Description

technical field [0001] The invention relates to a zero-voltage switching push-pull (Push-Pull) converter and a method for a power supply and an uninterruptible power supply system, especially a push-pull (Push-Pull) converter whose primary side The circuit switches at zero voltage. Background technique [0002] For an online uninterruptible power supply system (UPS), there are generally three working modes: online mode, backup mode and bypass mode. In the backup power supply mode, the battery supplies power to the load through a DC-DC converter and an inverter. Usually, the DC-DC converter converts and boosts the battery voltage to the voltage value required by the DC bus; and the inverter converts the DC voltage of the DC bus into an AC voltage output. [0003] Limited by the voltage value of a single battery, the battery packs in the UPS system generally adopt a series power supply mode. In order to improve the reliability of the system, the number of batteries connecte...

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 Applications(China)
IPC IPC(8): H02M3/28H02M3/337
CPCY02B70/1491Y02B70/10
Inventor 应建平林桦朱秋花蔡文荫
Owner DELTA ELECTRONICS INC
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