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

Power-down alarm control circuit

A technology for controlling circuits and electric alarms, applied in circuit devices, emergency protection circuit devices, and emergency protection circuit devices for limiting overcurrent/overvoltage, etc., which can solve DYING-GASP false alarms and large power-on peak currents , False alarms and other issues, to achieve the effect of reducing false alarms and suppressing the power-on peak current

Active Publication Date: 2016-01-13
WUHAN YANGTZE OPTICAL TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of grid fluctuations or adapter aging, it is more likely that the input voltage will drop below the DYING-GASP threshold, but it is above the minimum voltage for the system to work normally, so the system will also report DYING-GASP, but The system is not powered off, that is false alarm
Therefore, this implementation method has a relatively high risk of DYING-GASP false alarms, and a large number of DYING-GASP electrolytic capacitors will cause a large power-on peak current

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-down alarm control circuit
  • Power-down alarm control circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] Such as figure 1 As shown, the power-down alarm control circuit of the embodiment of the present invention includes an isolation module 30 and a slow-start module 10, a DYING-GASP energy storage module 20 and a monitoring module 40 connected thereto;

[0022] The monitoring module 40 is used to perform a power-on reset after power-on. During the period of power-on reset, it controls to charge the DYING-GASP energy storage module, and outputs the energy in the DYING-GASP energy storage module to the system after power-off. For DYING-GASP operation, the threshold value of DYING-GASP is greate...

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 DRYING-GASP alarm controlling circuit. The controlling circuit comprises an isolation module and a slow start module, a DRYING-GASP energy storage module and a monitor module which are connected with the isolation module. The monitor module is used for performing power-on reset after power-on and controlling that the DRYING-GASP energy storage module is charged in the power-on reset time and energy is output to a system to perform DRYING-GASP alarm after power-off, and the power-off alarm threshold value is larger than a normal working voltage value of the system wherein the monitor module is in; the slow start module is used for suppressing power-on peak currents after power-on; the DRYING-GASP energy storage module is used for storing DRYING-GASP energy during power-on; and the isolation module is used for isolating input voltages from the DRYING-GASP energy storage module during power-off. By means of the DRYING-GASP alarm controlling circuit, the power-on peak currents can be suppressed, sufficient DRYING-GASP retention time can be provided to complete a DRYING-GASP process, and the false alarm of DRYING-GASP is reduced.

Description

technical field [0001] The invention relates to a DYING-GASP circuit, in particular to a power-down alarm control circuit with low risk of false alarm and capable of avoiding power-on peak current. Background technique [0002] The communication industry is an important industry related to the development of the national economy. Communication equipment has relatively high requirements for stability and reliability, so the DYING-GASP (power failure alarm) function has been added: when the power supply of the terminal communication equipment cannot meet the normal operation of the system, The system will automatically send a signal to the central office, telling the central office that the terminal may not work normally, and the central office will respond and record accordingly. Among many terminal equipment development manufacturers, they basically simply use reset chips and a large number of electrolytic capacitors to realize this function. [0003] In the existing DYING-...

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): H02H3/24H02H9/02
Inventor 李响胡保民任波田明江伟
Owner WUHAN YANGTZE OPTICAL TECH