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

Single HF power conversion and dynamically pre-loaded sinusoidal inverter circuit

A technology of inverter circuit and conversion circuit, which is applied in the direction of converting AC power input into DC power output, output power conversion device, irreversible DC power input into AC power output, etc., which can solve the problem of large switching loss and low reliability sexual issues

Inactive Publication Date: 2002-10-16
武汉普天电源有限公司
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the circuit has undergone two high-frequency transformations, the switching loss is relatively large, which also reduces reliability to a certain extent.

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
  • Single HF power conversion and dynamically pre-loaded sinusoidal inverter circuit
  • Single HF power conversion and dynamically pre-loaded sinusoidal inverter circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] see figure 1 , the present invention includes a DC / DC conversion circuit 2, a dynamic preload circuit 3, and an inverter bridge circuit 4. The DC power supply 1 provides an input DC power supply to the DC / DC conversion circuit 2, and the single-chip microcomputer circuit constitutes an inverter signal circuit to generate a high-precision semi- The sine wave reference signal performs high-frequency switching control on the DC / DC conversion circuit 2, the output of the DC / DC conversion circuit 2 is connected to the dynamic load circuit 3 and the inverter bridge circuit 4, and the output terminal of the inverter bridge circuit 4 is connected to the AC through the filter circuit 5 Load 6. The DC / DC conversion circuit 2 is a single-ended forward converter, the primary switching device V1 is a high-power MOSFET, the transformer T1 is a high-frequency power transformer, and the rectifiers V3 and V4 are fast recovery diodes. The dynamic preload circuit 3 is composed of a high-...

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 sinusoidal inverter circuit includes DC / DC converter circuit, dynamic pre-loading circuit, inverting bridge circuit, DC power source to provide input DC voltage to the DC / DC converter circuit, monochip computer circuit to generate high-precision semi-sinusoidal reference signal for the high-frequency switching control of the DC / DC converter circuit. The output of the DC / DC converter circuit is connected to the dynamic load circuit and the inverting bridge circuit, and the output of the inverting bridge circuit of connected to the AC load via a filter circuit. There is only one high frequency conversion in the whole conversion, and this results in low switch loss and high conversion efficiency.

Description

technical field [0001] The invention relates to a sine wave inverter circuit. Background technique [0002] At present, the working process of the general high-frequency conversion inverter circuit is as follows: the DC power is converted into the required DC voltage by the high-frequency DC / DC conversion circuit, and then the high-frequency modulation by the inverter bridge is output as a sine wave. The amplitude, frequency and phase of the AC output voltage are all determined by the inverter bridge conversion circuit. Because the circuit has undergone two high-frequency conversions, the switching loss is relatively large, which also reduces reliability to a certain extent. Contents of the invention [0003] In view of the above reasons, the purpose of the present invention is to provide a single high-frequency power conversion with dynamic preload sine wave inverter circuit which only undergoes one high-frequency conversion in the inverter process and reduces switching ...

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): H02M7/501
Inventor 姚继忠
Owner 武汉普天电源有限公司
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