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

Indoor distribution system multipath power supply power-off time sequence control circuit and method thereof

A timing control circuit and power control circuit technology, applied to electrical components, output power conversion devices, etc., can solve problems such as poor flexibility and occupation of system resources, and achieve low cost, simple circuit structure, and high-efficiency control effects

Active Publication Date: 2020-11-03
上海中兴易联通讯股份有限公司
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this kind of power-down sequence circuit controlled by MCU, there are problems of poor flexibility and occupation of system resources.

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
  • Indoor distribution system multipath power supply power-off time sequence control circuit and method thereof
  • Indoor distribution system multipath power supply power-off time sequence control circuit and method thereof
  • Indoor distribution system multipath power supply power-off time sequence control circuit and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0034] In one embodiment, as figure 1 , the present invention provides a power-off sequence control circuit for multi-channel power supplies in an indoor distribution system. The circuit is powered by an external input power supply. , to prevent damage to the electronic components. The circuit consists of:

[0035] The power supply control sampling circuit 101 is connected to an external input power supply for power failure detection and voltage sampling detection; by detecting the voltage signal of the external input power supply, the power failure situation of the external input power supply can be obtained;

[0036] The power control circuit is used t...

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 provides an indoor distribution system multipath power supply power-off time sequence control circuit and a method thereof, and the circuit comprises a power supply control sampling circuit which is connected with an external input power supply and is used for power-off detection and voltage sampling detection; a power supply control circuit which is used for triggering each path ofpower supply to start powering off; a power switch circuit which is used for controlling power-off of the power supply; and a power supply discharging circuit which is used for realizing power-off rapid discharging of the power supply. In addition, the method provided by the invention comprises a detection step, a control step and a power-off step. According to the invention, a power supply management chip and an MCU control chip are not needed, the internal power supplies can be quickly and accurately powered off according to a time sequence through the sampling circuit and the comparator when the external input power supply is abnormally powered off, the circuit structure is simple, the cost is very low, an efficient indoor system multipath power supply control effect is realized, damageto the indoor distribution system caused by external abnormal power failure is avoided, the realization process is easy, the cost is low, and the method is suitable for multiple application scenes.

Description

technical field [0001] The invention relates to the field of power supply control, in particular to a power-off sequence control circuit and method for multiple power supplies of an indoor distribution system. Background technique [0002] With the rapid development of electronic products, the corresponding power supply system has become more and more complex. Especially in the field of sequential control of multiple power supplies, each power supply is required to have a strict power-on and power-on sequence. For example, when powering on, the core components of the system need to run first, and the power peripherals delay power-on. When powering off, it is necessary to ensure that the power peripherals are powered off first, and then the core components of the system are powered off. Such strict power-on and power-off sequence requirements can avoid system electrical shocks, reduce failure rates, and ensure reliable operation of the entire hardware system. If the timing ...

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): H02M1/36
CPCH02M1/36
Inventor 李勇潘亚峰朱龙元
Owner 上海中兴易联通讯股份有限公司
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