Supercharge Your Innovation With Domain-Expert AI Agents!

Wide output voltage source circuit of LCLC resonant converter

A technology of resonant converter and voltage source, which is applied in conversion devices and instruments for converting DC power input into DC power output and output power, can solve the problem of low efficiency of the converter, simplify the circuit, improve the circuit efficiency, and improve the The effect of utilization

Active Publication Date: 2020-03-31
CHONGQING UNIV OF POSTS & TELECOMM
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When [0004] is used as a wide output voltage source, the working area of ​​the LLC converter is larger than the resonance point. At this time, the power factor drops sharply, and the efficiency of the converter is low at this time , how to improve converter efficiency is of great significance

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
  • Wide output voltage source circuit of LCLC resonant converter
  • Wide output voltage source circuit of LCLC resonant converter
  • Wide output voltage source circuit of LCLC resonant converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] Example: such as figure 1 As shown, the LCLC voltage source system includes: switch module 4, resonant network module 5, transformer module 6 and filter voltage stabilization module 7, this module is used for theoretical analysis. The complete ion implanter power supply includes two modules: PFC (power factor correction) and DC step-down DC-DC. The PFC module refers to the step-up and rectification of 220V AC power into about 380V DC power. The DC step-down DC-DC module refers to stepping down the DC power of about 380V and converting it to the required voltage. The present invention focuses on the DC step-down module. The two switch tubes of the switch module are turned on alternately, and the duty ratio is usually 50%. The 380V direct current is converted into a square wave after passing through the switch module. According to the Fourier transform, the square wave can be regarded as It is the superposition of multiple sine waves. After passing through the resonant ...

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 wide output voltage source circuit of an LCLC resonant converter. The circuit comprises a three-type compensation circuit module, an oscillation control module and a switch driving module. The input end of the three-type compensation circuit module is connected with the output end of the LCLC resonant converter, the output end of the three-type compensation circuit moduleis connected with the oscillation control module, the oscillation control module is connected with the input end of the switch driving module, and the output end of the switch driving module is connected with an MOS tube of the LCLC resonant converter. The mean value of the maximum direct current input voltage and the minimum direct current input voltage is used as rated voltage, normalizes the input voltage and the output voltage and adjusts a converter operating state. By simulation, it can be known that under two worst conditions. During full load, zero-voltage starting of the minimum input voltage and the maximum output voltage . The maximum input voltage and the minimum output voltage during light load, so that the maximum efficiency can reach 95% when the LCLC converter is applied to a wide output voltage source.

Description

technical field [0001] The invention belongs to the technical field of power electronics, and specifically relates to the principle analysis and circuit design of DC-DC circuit efficiency improvement, which belongs to the field of power electronics. Background technique [0002] The switching power supply uses the switching tube to turn on or off to convert one voltage into another voltage at the load end. Commonly used in DC-DC converters. High efficiency and high power density have always been the focus of DC-DC converter design. The most effective way to increase the power density is to increase the switching frequency. Traditional DC-DC switching converters are mostly hard switching, that is, there is voltage and current overlap when the switching tube is turned on. With the increase of the switching frequency, the switching loss is also increasing, which restricts the development of DC-DC converters, and it is necessary to try to reduce the switching loss and switchin...

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): H02M3/335H02M1/42
CPCH02M3/33569H02M3/33523H02M1/42H02M1/0058Y02B70/10
Inventor 臧文静林云黄桢航高倩倩胡晓斌张祥
Owner CHONGQING UNIV OF POSTS & TELECOMM
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