Check patentability & draft patents in minutes with Patsnap Eureka AI!

Nondestructive buffer circuit for T type converter cross shaft

A snubber circuit and converter technology, applied in the direction of electrical components, output power conversion devices, etc., can solve the problems of increasing complexity, reducing system efficiency, energy loss, etc., to solve the problem of buffer absorption, without reducing system efficiency, increasing Effects of System Complexity

Inactive Publication Date: 2011-05-11
BEIJING JIAOTONG UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the traditional lossy snubber circuit absorbs the energy stored in the stray inductance of the line when the switching tube state is switched, it will introduce unnecessary energy loss and reduce the efficiency of the system; the traditional lossless snubber circuit fails to convert according to the T-type The structural characteristics of the device are optimized, and there are many components, which increases the complexity

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
  • Nondestructive buffer circuit for T type converter cross shaft
  • Nondestructive buffer circuit for T type converter cross shaft
  • Nondestructive buffer circuit for T type converter cross shaft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further described in conjunction with accompanying drawing:

[0015] The application number is: 200810118835.1, the title of the invention is: multi-level rectification T-type converter topology, the recorded circuit is as follows: through the capacitor C T1 、C T2 ...C T(k-1) 、C Tk 、C B1 、C B2 ...C B(k-1) 、C Bk A total of 2k capacitors are connected in series to form the vertical axis of the T-shaped converter; the bidirectional switch S 1 , S 2 ... S k-1 , S k The horizontal axis constituting the T-type converter; there is a unidirectional switch S Ti1 , S Ti2 ... S Ti(2i) A unidirectional rectification branch that flows from the horizontal axis to the vertical axis is formed. Between the node between the bidirectional switches and the node of the corresponding capacitor in the lower half of the vertical axis is a unidirectional switch S Bi1 , S Bi2 ... S Bi(2i) A one-way rectification branch that flows from the vertical axi...

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 provides a lossless snubber circuit for a cross shaft of a T-shaped converter. The invention is characterized in that based on the T-shaped converter, the lossless snubber circuit (Sni) on a bidirectional controlled switch of the cross shaft of the T-shaped converter consists of diodes (SniD1, SniD2, SniD3 and SniD4) and a capacitor (Cni); cathode butt nodes of the diodes (SniD1 and SniD2) are connected with one end of the capacitor (Cni) and the anode of the diode (SniD3); the other end of the capacitor (Cni) is connected with the cathode of the diode (SniD4); the cathode butt nodes of the diodes (SniD1 and SniD2) are connected with one end of the capacitor (Cni) and the anode of the diode (SniD3); the other end of the capacitor (Cni) is connected with the cathode of the diode (SniD4); anodes of the diodes (SniD1 and SniD2) are respectively connected with two ends of the bidirectional controllable switch; a buffer capacitor (Cni) and a node of the diode (SniD4) are connected with a midpoint of switching tubes which are connected back to back in the controllable switch (Si); and cathodes of the diodes (SniD3 and SniD4) are respectively connected with the cathode of a diode (STi(2i)) and the anode of a diode (SBi(2i)) in an unidirectional rectifier circuit. The combination of the lossless snubber circuit can form snubber circuits with different structures.

Description

technical field [0001] The invention relates to a snubber circuit, in particular to a non-destructive snubber circuit suitable for a bidirectional controllable switch on a transverse axis of a T-type converter. Background technique [0002] When the traditional lossy snubber circuit absorbs the energy stored in the stray inductance of the line when the state of the switch tube is switched, it will introduce unnecessary energy loss and reduce the efficiency of the system; the traditional lossless snubber circuit cannot convert according to the T-type The structural characteristics of the device are optimized, and there are many components, which increases the complexity. Contents of the invention [0003] The technical problem to be solved by the invention is to solve the buffer absorption problem of the bidirectional switch on the transverse axis of the T-type converter and provide a simple and reliable solution. [0004] In order to achieve the above object, technical sc...

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): H02M1/34
Inventor 郑琼林贺明智郝瑞祥杨中平孙湖游小杰林飞张立伟黄先进王琛琛
Owner BEIJING JIAOTONG UNIV
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