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

Multiphase Converter and Its Control Circuit

A multi-phase converter and control circuit technology, applied in control/regulation systems, DC power input conversion to DC power output, instruments, etc., can solve the problem that the frequency and phase of two-phase converters deviate from the design value, and the output voltage is easy to increase Ripple and other problems to achieve the effect of improving stability, avoiding fluctuations, and reducing ripples

Active Publication Date: 2021-11-23
SG MICRO
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In a multi-phase converter, when one of the phase converters has a certain offset and disturbance, the frequency and phase of the two-phase converter will deviate from the design value, and the mismatch between the two-phase converters will easily increase the output voltage. The ripple

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
  • Multiphase Converter and Its Control Circuit
  • Multiphase Converter and Its Control Circuit
  • Multiphase Converter and Its Control Circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Various embodiments of the invention will be described in more detail below with reference to the accompanying drawings. In the various drawings, the same elements are denoted by the same or similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale.

[0030] It should be understood that in the following description, a "circuit" refers to a conductive loop formed by at least one element or sub-circuit through electrical or electromagnetic connections. When an element or circuit is said to be "connected to" another element or an element / circuit is said to be "connected between" two nodes, it can be directly coupled or connected to the other element or there can be intervening elements and the connection between elements can be be physical, logical, or a combination thereof. In contrast, when an element is referred to as being "directly coupled to" or "directly connected to" another element, there are no intervening e...

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 application discloses a multi-phase converter and its control circuit. The multi-phase converter includes a first-phase power stage circuit and a second-phase power stage circuit connected in parallel between the input end and the output end. The first-phase power stage circuit The turn-on and turn-off of the main switch tube of the second phase power stage circuit is controlled by the first switch signal, and the turn-on and turn-off of the main switch tube of the second phase power stage circuit is controlled by the second switch signal, wherein the control circuit includes: phase control The circuit generates an adjustment signal according to the phase difference between the first switch signal and the second switch signal, and is used to adjust the inactive level time of the first switch signal or the second switch signal, so that the time between the first switch signal and the second switch signal With a predetermined phase shift, the two-phase converter works under a fixed phase shift, reducing the ripple of the output voltage.

Description

technical field [0001] The present invention relates to the technical field of switching power supplies, and more specifically, to a multi-phase converter and a control circuit thereof. Background technique [0002] In switching power supply technology, in order to reduce output ripple and improve power supply stability and power, a multi-phase parallel topology is usually used. Each channel of the multiphase converter has a corresponding power switch tube and inductor, the input terminals of all channels of the multiphase converter are connected together to receive the input voltage, and the output terminals are commonly connected to the input terminal of the output filter circuit of the multiphase converter , to provide the output voltage through the output filter circuit. This topology has the advantages of mutual cancellation of ripple, phase-to-phase shunting, and high-frequency output voltage with low switching frequency. [0003] The multi-phase converter is based o...

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): H02M3/158H02M1/084
CPCH02M1/084H02M3/1584
Inventor 邓扬扬易新敏王宇
Owner SG MICRO