Digital controller of soft switch PWM converter

A digital controller and converter technology, applied in the direction of high-efficiency power electronic conversion, output power conversion devices, electrical components, etc., can solve the problems of low frequency, low control accuracy, easy to be interfered, etc., to reduce loss, flexible programming Effect

Inactive Publication Date: 2016-04-20
GUANGXI NORMAL UNIV
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing soft switching converters implement soft switching by detecting the output current through peripheral circuits and using analog devices such as amplifiers to realize soft switching. This method has low control precision, low frequency, and is susceptible to interference.

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
  • Digital controller of soft switch PWM converter
  • Digital controller of soft switch PWM converter
  • Digital controller of soft switch PWM converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The overall structure diagram of the present invention is as follows figure 1 As shown, a digital controller of a soft-switching PWM converter is provided, including a control module, a sampling module, a driving module, a power supply module and an overcurrent protection module; a power supply module, a sampling module, a driving module, an overcurrent protection module and a control module Module connection, the data collected by the sampling module enters the microcontroller through the A / D conversion channel of the microcontroller in the control module, and the microcontroller processes the data through the preset program to obtain PWM, and then drives the switch of the soft switching circuit through the drive module The tube controls the on and off of the switch tube; the power supply module provides power for the entire controller, and the overcurrent protection module is used to protect the circuit when the current in the circuit exceeds the preset maximum value. ...

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 present invention discloses a digital controller of a soft switch PWM converter. The digital controller comprises a control module, a power supply module, a sampling module and a driving module. The power supply module, the sampling module, the driving module are connected to the control module. The data collected by the sampling module enters into a microcontroller through the A / D conversion channel of the microcontroller in the control module, the microcontroller processes the data to obtain a PWM, then the switch tube of a soft switch circuit in the converter is driven through the driving module, the switch-on and switch-off control of the switch tube are carried out, and the accurate control of each time point of the soft switch is realized. The power supply module supplies power to the whole controller. According to the digital controller of a soft switch PWM converter, the digital control of the converter can be realized, at the same time the controller programming is flexible, and the cutting is carried out according to a user need. A core controller is connected the sampling module, the driving module, and an overcurrent protection module, the inputted and outputed voltage and current can be detected, and thus the switch-on and switch-off of the switch tube are precisely controlled.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to a digital controller of a soft-switching PWM converter. Background technique [0002] In recent years, with the development of power electronics technology, the application of DC converters has become more and more extensive. Hard-switching DC converters have disadvantages such as large hard-switching loss, low system efficiency, and high switching stress. The generation of soft switching technology can improve the performance of the converter. The appearance of the soft switching PWM converter is another leap of the soft switching technology. [0003] The soft-switching PWM converter combines the characteristics of the resonant converter and the PWM converter. The soft-switching PWM converter adds an auxiliary switching tube on the basis of the resonant converter to control the resonant process of the resonant element. It makes the resonant stage only occur in the ...

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): H02M1/08
CPCH02M1/08H02M1/083H02M1/0012H02M1/0058Y02B70/10
Inventor 缪海龙韦笃取汪慕峰张晓航王军
Owner GUANGXI NORMAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap