Circuit for reducing turn-on time of current control type switch adjusting system

A switching regulation and turn-on time technology, applied in the direction of high-efficiency power electronic conversion, electrical components, output power conversion devices, etc., can solve the problems of output voltage drop, affecting the normal operation of the circuit, etc. The effect of good dynamic responsiveness

Active Publication Date: 2013-11-27
SUZHOU ZHIPU XINLIAN ELECTRONICS TECH
View PDF6 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, if the output load is dynamically switched, the load suddenly switches from light load to full load, because the feedback information fed back by the primary side needs to be sampled in the next cycle, then wi

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
  • Circuit for reducing turn-on time of current control type switch adjusting system
  • Circuit for reducing turn-on time of current control type switch adjusting system
  • Circuit for reducing turn-on time of current control type switch adjusting system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0043] In order to further reveal the technical solution of the present invention, the embodiments of the present invention are described in detail with reference to the accompanying drawings:

[0044] figure 1 Circuit diagram of a flyback converter built by an existing constant current and constant voltage controller with primary side feedback; Figure 4 The circuit diagram of the flyback converter constructed by the circuit for reducing the turn-on time in the current-controlled switching regulation system of the present invention. Such as figure 1 with Figure 4 As shown, the basic circuit structure of the present invention is: in the existing primary side feedback constant current and constant voltage controller, namely figure 1 An exponential wave generator 440, a second comparator 442, and an OR gate 444 are added to the constant current and constant voltage controller 175 with primary side feedback shown to form the reduced current control type switching regulation system of...

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 circuit for reducing turn-on time of a current control type switch adjusting system. An exponential wave generator, a second comparator and a or gate are additionally arranged for the circuit based on an existing primary side-feedback constant current constant voltage controller. The circuit is additionally arranged, so that a flyback converter constructed by the circuit is not limited by leading edge blanking time any more, that is, shorter turn-on time and higher lowest switch frequency can be realized without load. Therefore, the flyback converter constructed by the circuit has better dynamic response capacity and lower standby power consumption than that of a flyback converter constructed by an existing primary side-feedback constant current constant voltage controller in a same condition.

Description

technical field [0001] The invention relates to a current control switch regulation system, in particular to a circuit for reducing the turn-on time in the current control switch regulation system. Background technique [0002] In recent years, handheld personal communication terminals (such as mobile phones) have developed rapidly, and the related charger market has also developed accordingly. Among them, the flyback converter is widely used in this field due to its own cost and performance advantages. Various constant-current and constant-voltage controllers using primary-side feedback are also widely accepted and used because of their simple peripheral structure and low cost. [0003] Existing flyback converters built with constant current and constant voltage controllers fed back from the primary side, such as figure 1 As shown, it includes: rectifier bridge 153, Π-type filter 154, absorption circuit 155, transformer 156 (which is composed of primary winding 161, secon...

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): H02M1/08
CPCY02B70/16Y02B70/10
Inventor 杨全边彬陈畅
Owner SUZHOU ZHIPU XINLIAN ELECTRONICS TECH
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