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

Power supply soft start circuit with hot plug function

A technology of soft start circuit and power supply, applied in the direction of output power conversion device, electrical components, etc., can solve the problem of damage to the switching tube of the system, achieve the protection of components, improve reliability and service life, and suppress surge current Effect

Pending Publication Date: 2020-12-18
福州耀天芯电子有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the actual product use, the user may operate with power on, such as suddenly plugging and unplugging the interface when the system is working normally. This method of use will cause a relatively large dv / dt peak voltage at the power interface, thereby damaging the system. turning tube

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 soft start circuit with hot plug function
  • Power supply soft start circuit with hot plug function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Please refer to figure 1 and figure 2 , Embodiment 1 of the present invention is:

[0033] Please refer to figure 1, a power supply soft-start circuit with hot-swap function, comprising a system power supply interface module 1, a hot-swap peak absorption module 2 and a power supply soft-start module 3, the power supply soft-start module 3 is connected with the hot-swap peak absorption module respectively 2 is electrically connected to the system power supply interface module 1, the hot swap peak absorption module 2 is electrically connected to the system power supply interface module 1, and the power soft start module 3 is electrically connected to the peripheral motor drive circuit 4.

[0034] Please refer to figure 2 , the power supply soft start module 3 includes resistor R3 (resistance value is 82Ω), resistor R4 (resistance value is 82Ω), resistor R5 (resistance value is 10kΩ), resistor R9 (resistance value is 1kΩ), resistor R10 (resistance value is 10kΩ), cap...

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 relates to the technical field of power supply systems, in particular to a power supply soft start circuit with a hot plug function, which comprises a system power supply interface module, a hot plug peak absorption module and a power supply soft start module, wherein the power supply soft start module is electrically connected with the hot plug peak absorption module and the systempower supply interface module; the hot plug peak absorption module is electrically connected with the system power supply interface module; the power supply soft start module is electrically connectedwith an external motor driving circuit. Surge current suppression is achieved through impedance of the system in the initial power-on stage of the system by arranging the power supply soft start module and the system power supply interface module, and meanwhile, when the system works normally, the system impedance can be reduced to a reasonable range, so that the power consumption of the system is not consumed; by arranging the hot plug peak absorption module, the influence of high peak voltage on the system can be avoided when the system is subjected to hot plug, so that components of the system are protected.

Description

technical field [0001] The invention relates to the technical field of power supply systems, in particular to a soft start circuit for a power supply with a hot swap function. Background technique [0002] With the development of electronic technology, various industries have more and more strict requirements on product performance and life; in the field of high-power motors, due to the high power of the system in actual work, the power supply terminal often needs a capacitor with a large capacity. The capacity is generally more than a few thousand μF. Large-capacity capacitors can keep the system voltage fluctuating within a small range, and will not generate large power supply ripples due to motor load changes, thereby ensuring system stability. However, a large-capacity capacitor will generate a large surge current during the initial power-on stage, and this surge current may damage the fuse or MOS tube of the system circuit and other devices. At the same time, a large ...

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): H02M1/36H02M1/32
CPCH02M1/32H02M1/36
Inventor 何铭森朱宇耀周金穗王宗彪
Owner 福州耀天芯电子有限公司
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