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

Power supply feedback control system and method

A feedback control system and power supply technology, applied in the control/regulation system, electrical components, regulating electrical variables, etc., can solve the problem of the rapidity of the small jitter of the output voltage of the power supply, etc., to improve the rapidity and accuracy, The effect of simple and effective feedback control

Active Publication Date: 2022-05-13
北京华芯微半导体有限公司
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, none of these existing technologies can solve the rapidity problem of the tiny jitter of the voltage at the output terminal of the power supply.

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
  • Power supply feedback control system and method
  • Power supply feedback control system and method
  • Power supply feedback control system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0048] Such as Figure 1-Figure 10 As shown, in the first aspect, the embodiment of the present invention provides a power supply feedback control system, including a sampling circuit 300, an error amplifier 400, a controller 500, a pulse width modulator 600, and a switching converter 700. The signal input of the sampling circuit 300 terminal is connected with the power supply 100 and the load 200, the signal output terminal of the above-mentioned sampling circuit 300 is connected with the signal input terminal of the above-mentioned error amplifier 400, the signal output terminal of the above-mentioned error amplifier 400 is connected with the signal input terminal of the above-mentioned controller 500, and the above-mentioned controller The signal output terminal of 500 is connected to the signal input terminal of the above-mentioned pulse width modulator 600 , and the signal output terminal of the above-mentioned pulse width modulator 600 is connected to the signal input ter...

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 power supply feedback control system and method, and relates to the technical field of voltage control. The system comprises a sampling circuit, an error amplifier, a controller, a pulse width modulator and a switching converter, the signal input end of the sampling circuit is connected with a power supply and a load, and the signal output end of the sampling circuit is connected with the signal input end of the error amplifier. The signal output end of the error amplifier is connected with the signal input end of the controller, the signal output end of the controller is connected with the signal input end of the pulse width modulator, and the signal output end of the pulse width modulator is connected with the signal input end of the switching converter. According to the invention, the jitter deviation of the power supply voltage can be all fed back to the voltage signal of the output end of the sampling circuit, simple and effective feedback control is realized, and the rapidity and accuracy of a power supply control system are improved.

Description

technical field [0001] The present invention relates to the technical field of voltage control, in particular to a power supply feedback control system and method. Background technique [0002] Switching power supply is a typical feedback control system, which has two important indicators of response speed and stability. Response speed is the speed at which the power supply can quickly adjust when the load changes or the input voltage changes. When the load of the switching power supply is a digital device, its current will change with the change of the logic function. For example, when FPGA is configured, the current will more than double. In order to ensure the stable output of the power supply without dropping or overshooting, the power supply must be adjusted quickly so that the final output voltage does not change. The response speed of the power supply determines the adjustment speed of the power supply. [0003] In terms of power feedback design, there are the foll...

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): H02M3/156
CPCH02M3/156Y02B70/10
Inventor 李力生
Owner 北京华芯微半导体有限公司
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