Unlock instant, AI-driven research and patent intelligence for your innovation.

Switching converter and control circuit and method thereof

A control circuit and converter technology, applied in control/regulation systems, conversion of DC power input to DC power output, instruments, etc., can solve problems such as device damage and input voltage increase

Active Publication Date: 2020-11-17
SILERGY SEMICON TECH (HANGZHOU) CO LTD
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the DC / DC switching converter, when the output load is light load or even no load, the constant control converter works in forced continuous conduction mode (FCCM) to reduce the output voltage ripple, but in FCCM mode In this case, the energy on the output capacitor will be poured back into the input terminal, causing the input voltage to rise and damage the device

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
  • Switching converter and control circuit and method thereof
  • Switching converter and control circuit and method thereof
  • Switching converter and control circuit and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] 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.

[0060] 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.

[0061] 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 invention discloses a switching type converter and a control circuit and a control method thereof. The working mode of the switching type converter under a light load is controlled according to the magnitude of the input voltage of the switching type converter, so that the switching type converter is switched between a forced continuous conduction mode and an interrupted conduction mode, and the situation that the input voltage rises and the device is damaged due to the fact that energy on the output capacitor flows back into the input voltage when the switching type converter works in theforced continuous conduction mode for a long time, is avoided.

Description

technical field [0001] The present invention relates to the technical field of power electronics, in particular to a switching converter and its control circuit and control method. Background technique [0002] In the DC / DC switching converter, when the output load is light load or even no load, the constant control converter works in forced continuous conduction mode (FCCM) to reduce the output voltage ripple, but in FCCM mode In this case, the energy on the output capacitor will flow back to the input terminal, causing the input voltage to rise and damage the device. Contents of the invention [0003] In view of this, the purpose of the present invention is to provide a switch-type converter and its control circuit and control method, according to the size of the input voltage of the switch-type converter to control the operation mode of the switch-type converter under light load, so that It switches between the forced continuous conduction mode and the discontinuous co...

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): H02M3/158
CPCH02M3/1584
Inventor 戴剑东金津邓建
Owner SILERGY SEMICON TECH (HANGZHOU) CO LTD