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

High-efficiency BOOST circuit

A circuit and switching circuit technology, applied in the field of power conversion, can solve the problems of high power consumption, poor reliability and low efficiency of the converter, and achieve the effects of high conversion efficiency, high power factor and low cost

Inactive Publication Date: 2014-06-11
XIAN ZHIHAI POWER TECH
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a high-efficiency BOOST circuit, which mainly solves the problems of high power consumption, low efficiency and poor reliability of existing low-voltage new energy power converters

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
  • High-efficiency BOOST circuit
  • High-efficiency BOOST circuit
  • High-efficiency BOOST circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The high-efficiency BOOST circuit includes an input current sampling circuit and an output current sampling circuit, the input end of the input current sampling circuit is connected to the output end of the input power supply, the input end of the output current sampling circuit is connected to the input end of the load, and the input current sampling circuit The output ends of the circuit and the output current sampling circuit are connected to the input end of the VMOS switch circuit through a width-adjustable pulse control circuit, a drive signal synthesis circuit, a VMOS switch drive circuit, and the input end of the VMOS switch circuit is also passed through a freewheeling inductance It is connected to the output terminal of the input power supply, and the output terminal of the VMOS switch circuit is connected through the reverse isolation circuit, the energy storage filter circuit and the load in turn; the output terminal of the VMOS switch circuit is also connecte...

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 high-efficiency BOOST circuit which is mainly used for solving the problems that an existing low-voltage new energy power supply inverter is high in power consumption, low in efficiency and poor in reliability. The high-efficiency BOOST circuit comprises an input current sampling circuit and an output current sampling circuit. The output ends of the input current sampling circuit and the output current sampling circuit are sequentially connected with the input end of a VMOS switching circuit through a width-adjusting impulse control circuit, a driving signal synthesizing circuit and a VMOS switching driving circuit. A follow current inductor comprises two difference module symmetric inductors. The input current sampling circuit comprises a current sensor CS1, a capacitor C13, a resistor R21, a diode D4, a reverse isolation circuit and a VMOS tube which carries out synchronous rectification together with the VMOS switching circuit. The driving signal synthesizing circuit is synchronously driven by the follow current driving circuit.

Description

technical field [0001] The invention relates to a high-efficiency BOOST circuit, which belongs to the technical field of power conversion. Background technique [0002] In recent years, photovoltaic power generation, wind power generation, battery power supply and other renewable new energy systems with AC low voltage and DC low voltage power supply have been widely used. It is imperative to improve the power supply efficiency, power supply quality and power supply reliability of low voltage new energy power supply systems. [0003] At present, the power conversion known in the art basically adopts: [0004] 1. AC (AC) input, using a full-wave rectifier to rectify the input AC (AC) power to DC (DC) power, and then convert DC / DC to DC (DC) output. This kind of scheme solves the conversion problem of higher input voltage AC power supply and low-power power supply. However, when low-voltage AC power input and high-power power conversion, because the voltage drop of the AC / DC ...

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): H02M1/088
Inventor 胡家培胡民海
Owner XIAN ZHIHAI POWER TECH
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