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

Constant time control method of switching type regulator, control circuit and switching type regulator using control circuit

A constant time, control circuit technology, applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve the problems of component damage, output voltage overshoot, slow response to transient changes, etc., to avoid fluctuations, fast transients. Transient response, the effect of improving the transient response speed

Active Publication Date: 2013-12-25
SILERGY SEMICON TECH (HANGZHOU) CO LTD
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Visible, using as Figure 1A The DC-DC converter shown in the constant on-time control scheme responds very slowly to the transient change of the load, and will produce an overshoot of the output voltage, which will cause damage to the components in the circuit

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
  • Constant time control method of switching type regulator, control circuit and switching type regulator using control circuit
  • Constant time control method of switching type regulator, control circuit and switching type regulator using control circuit
  • Constant time control method of switching type regulator, control circuit and switching type regulator using control circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] Several preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. The present invention covers any alternatives, modifications, equivalent methods and schemes made on the spirit and scope of the present invention. In order to provide the public with a thorough understanding of the present invention, specific details are set forth in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details.

[0061] refer to figure 2 , shows a schematic block diagram of a preferred embodiment of a constant-time control circuit for a switching regulator according to the present invention.

[0062] In this embodiment, the working principle of the constant time control circuit is described by taking a step-down switching regulator as an example...

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 constant time control method of a switching type regulator. The constant time control method of the switching type regulator comprises the steps that the output voltage of the output end of the switching type regulator is detected; the current flowing through an inductor of the switching type regulator is detected; the fact that whether step change happens to a load at the output end of the switching type regulator is judged; when step change does not happen to the load at the output end of the switching type regulator, the state of a switching element in the switching type regulator is controlled according to a generated square wave control signal so that the output voltage can be kept basically constant, wherein the square wave control signal comprises a set of pulses with constant time widths; when step change happens to the load at the output end of the switching type regulator, the pulses with the constant time widths are cut off in advance till a next pulse comes. The constant time control method of the switching type regulator has the advantages that fast transient response to the change of the load is achieved, the transient response speed is improved, and major fluctuations of the output voltage are avoided.

Description

[0001] The application date is "September 14, 2011", the application number is "201110289650.9", and the title of the invention is "a constant time control method for a switching regulator, a control circuit and a switching regulator using the same". Divisional application. technical field [0002] The present invention relates to a power supply technology, and more particularly, to a switching regulator using a constant time control scheme. Background technique [0003] The switching power supply is composed of two parts, the power stage circuit and the control circuit. The function of the control circuit is to adjust the turn-on and turn-off time of the switching system in the power stage circuit when the input voltage, internal parameters and external load change, so as to keep the output voltage or output current of the switching power supply constant. Therefore, in the design of the switching power supply, the selection and design of the control method are very importa...

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): H02M3/00H02M3/10
CPCH02M3/156H02M3/1566H02M3/157
Inventor 陈伟
Owner SILERGY SEMICON TECH (HANGZHOU) CO LTD
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