Synchronous rectification circuit and charging circuit using it

A technology of synchronous rectification and charging circuit, which is applied in the direction of circuit devices, battery circuit devices, collectors, etc., and can solve the problems that the battery cannot be fully charged and the number of components is small.

Active Publication Date: 2017-06-06
NANJING SILERGY SEMICON TECH CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, a synchronous rectification circuit with a simple structure and a small number of components and a charging circuit using it are provided. On the one hand, the structure of the synchronous rectification circuit is simplified, and on the other hand, the existing charging circuit is easily unable to fully charge the battery.

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
  • Synchronous rectification circuit and charging circuit using it
  • Synchronous rectification circuit and charging circuit using it
  • Synchronous rectification circuit and charging circuit using it

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The present invention is described below based on examples, but the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are set forth in detail. The present invention can be fully understood by those skilled in the art without the description of these detailed parts. In order not to obscure the essence of the present invention, well-known methods, procedures, procedures, components and circuits have not been described in detail.

[0041] Additionally, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

[0042] Meanwhile, it should be understood that in the following description, "circuit" refers to a conductive loop formed by at least one element or sub-circuit through electrical connection or electromagnetic connection. When an element or circuit is said to be "connected to" another eleme...

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

Disclosed are a synchronous rectifying circuit and a charging circuit comprising the same. The synchronous rectifying circuit comprises a rectifying transistor and a synchronous rectifying control circuit, wherein the synchronous rectifying control circuit is used for generating synchronous rectifying control signals according to the voltage difference between the drain electrode and the source electrode of the rectifying transistor to control on and off of the rectifying transistor. The synchronous rectifying circuit is simple in structure, small in number of devices and low in cost. When applied to the charging circuit, the synchronous rectifying circuit can overcome the problem that a battery is difficult to be fully charged.

Description

technical field [0001] The invention relates to power electronics technology, in particular to a synchronous rectification circuit and a charging circuit using the same. Background technique [0002] The synchronous rectification technology uses a metal oxide field effect transistor (MOSFET) to replace a Schottky diode (Schottky Diode) so as to help reduce the overall power consumption of the circuit. [0003] The synchronous rectification circuit needs to be equipped with a control circuit to control the conduction state of the rectification transistor. The existing control circuit has a complex structure, a large number of components, and occupies a large chip area, which makes the manufacturing cost of the synchronous rectification circuit relatively high. Contents of the invention [0004] In view of this, a synchronous rectification circuit with a simple structure and a small number of components and a charging circuit using the same are provided. On the one hand, 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 Patents(China)
IPC IPC(8): H02M3/156H02J7/00
CPCY02E60/10
Inventor 邓甫华
Owner NANJING SILERGY SEMICON TECH 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