DC/DC converting circuit and double-way and multi-quadrant DC/DC converting circuits

A technology of conversion circuit and conversion unit, which is applied in the direction of converting DC power input to DC power output, electrical components, and adjusting electrical variables, etc., and can solve problems such as complex structure of the conversion circuit

Active Publication Date: 2015-07-08
SUNGROW POWER SUPPLY CO LTD
View PDF8 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the MOS tube rectification DC/DC conversion circuit can improve the conversion efficiency after entering the through state, but in the MOS tube rectification DC/DC conversion circuit, it is necessary to conf

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
  • DC/DC converting circuit and double-way and multi-quadrant DC/DC converting circuits
  • DC/DC converting circuit and double-way and multi-quadrant DC/DC converting circuits
  • DC/DC converting circuit and double-way and multi-quadrant DC/DC converting circuits

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0064] The invention discloses a DC / DC conversion circuit, which has a simple structure and high conversion efficiency.

[0065] see figure 2 , figure 2 It is a structural schematic diagram of a DC / DC conversion circuit disclosed in the present invention. It includes: a DC / DC conversion unit 21, a bootstrap drive unit 22 and a controller (not shown in the figure).

[0066] in:

[0067] The DC / DC conversion unit 21 is used to convert the input voltage to a ...

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 DC/DC converting circuit which comprises a DC/DC converting unit, a bootstrapping driving unit and a controller. The DC/DC converting unit comprises a first power tube and a second power tube. The bootstrapping driving unit comprises a driving chip, a diode and a bootstrapping capacitor. The diode, the bootstrapping capacitor and the first power tube form a charging loop. The bootstrapping capacitor provides driving charges for the second power tube. Under the situation that input voltage meets preset conditions, the controller lowers the switching frequency and the duty ratio of the first power tube, and during first power tube connecting, charges charged into the bootstrapping capacitor can maintain driving charges needed by the second power tube. The DC/DC converting circuit is simple in structure and high in converting efficiency. The invention further discloses a double-way DC/DC converting circuit, a two-quadrant DC/DC converting circuit and a four-quadrant DC/DC converting circuit.

Description

technical field [0001] The invention belongs to the technical field of DC / DC converters, in particular to DC / DC conversion circuits, bidirectional and multi-quadrant DC / DC conversion circuits. Background technique [0002] There are two main types of DC / DC conversion circuits at present, one is diode rectification type, and the other is MOS tube (metal-oxide-semiconductor field effect transistor) rectification type. figure 1 A step-up DC / DC conversion circuit is shown. In the diode rectification type DC / DC conversion circuit, due to the large conduction voltage drop of the diode, the conduction loss of the conversion circuit is relatively large, and the conversion efficiency is low. At present, MOS tube rectification type DC / DC conversion circuits are mostly used. [0003] In order to improve the conversion efficiency of the conversion circuit, during the operation of the MOS tube rectification type DC / DC conversion circuit, when the input voltage reaches the output voltag...

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): H02M3/155H02M1/08
CPCH02M1/088H02M3/155
Inventor 崔开涌胡兵薛丽英刘宝其姜安营
Owner SUNGROW POWER SUPPLY CO LTD
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