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

Synchronous rectification circuit and its control method

A technology of synchronous rectification and circuit, applied in the direction of electrical components, high-efficiency power electronic conversion, AC power input conversion to DC power output, etc., can solve the problems of increased rectification loss and achieve the effect of improving the efficiency of synchronous rectification

Active Publication Date: 2019-08-13
NANJING SILERGY SEMICON TECH CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the rectification loss of the synchronous rectification circuit increases significantly at high frequency alternating current

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 its control method
  • Synchronous rectification circuit and its control method
  • Synchronous rectification circuit and its control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] 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.

[0037] 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.

[0038] 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

The present application discloses a synchronous rectification circuit and a control method thereof. The synchronous rectification circuit includes first to fourth switch tubes and a switch control circuit. The switch control circuit is used for generating the first control signal and the second control signal. The first control signal controls the turn-on and turn-off of the first switch tube and the third switch tube, and the second control signal controls the turn-on of the second switch tube and the fourth switch tube and disconnect. The switch control circuit self-adjusts the first control signal and the second control signal, so that the operating points of the first to fourth switching tubes are approximately ideal operating points. The synchronous rectification circuit self-adjusts the on-point and off-point of the switch tube to compensate for the time delay of the control signal, thereby improving the synchronous rectification efficiency.

Description

technical field [0001] The invention relates to power electronics technology, in particular to a synchronous rectification circuit and a control method thereof. Background technique [0002] A rectifier circuit is used to convert alternating current to direct current. Traditional rectification circuits are half-bridge or full-bridge rectification circuits using diodes. During the positive and negative half cycles of the alternating current, the current flows from the input end of the rectification circuit to the output end of the rectification circuit through different diode paths, so that a unidirectional direct current is obtained at the output end. The rectification circuit using the diode has a simple structure and low cost, but the rectification loss of the diode itself is large, so that the efficiency of the power supply becomes low. [0003] The synchronous rectification circuit is a rectification circuit that uses switching tubes instead of diodes. Due to the low ...

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): H02M7/219
CPCH02M7/219H02M1/0054H02M7/2195H02M1/08Y02B70/10H02M1/0009
Inventor 张望赵晨
Owner NANJING SILERGY SEMICON TECH CO LTD
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