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Power supply backup control panel, display controller and LED display control system

A control panel and power supply technology, applied in static indicators, emergency power supply arrangements, instruments, etc., can solve the problems of excess power design, increased risk of electric shock, high system cost, etc., and achieve low cost, flexible switching backup, and simple hardware circuits Effect

Pending Publication Date: 2022-04-08
XIAN NOVASTAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the system cost of the prior art is high, and the power design is excessive; and too many backup power sources will also cause an increase in leakage current and increase the risk of electric shock

Method used

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  • Power supply backup control panel, display controller and LED display control system
  • Power supply backup control panel, display controller and LED display control system
  • Power supply backup control panel, display controller and LED display control system

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] see figure 1, an LED display control system 10 proposed by an embodiment of the present invention, for example, includes: multiple power backup control boards PSBC1, PSBC2, ..., PSBCn, multiple display modules DM1, DM2, ..., DMn, multiple control cards C1 , C2, ..., Cn, multiple main power supplies PS1, PS2, ..., PSn and one backup power supply PSb. Wherein, each power supply backup control board such as PSBCn has main power supply power input terminal P2, ...

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PUM

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Abstract

The invention relates to a power supply backup control board, a display controller and an LED display control system. The power supply backup control board comprises a main power supply switch circuit which is electrically connected between a main power supply power input end and a load power supply output end and is provided with a first switch control end; the backup power supply switch circuit is electrically connected between a backup power supply power input end and the load power supply output end and is provided with a second switch control end; the phase inverter circuit is electrically connected between the first switch control end and the second switch control end; the main power supply detection circuit comprises a reference voltage generation unit and a voltage comparison unit, the first input end of the voltage comparison unit is electrically connected with the main power supply power input end, and the output end of the voltage comparison unit is electrically connected with the second switch control end; and the reference voltage generation unit is electrically connected between the second input end of the voltage comparison unit and the load power supply output end. According to the invention, N + 1 power supply backup can be realized.

Description

technical field [0001] The invention relates to the technical field of power backup and display, in particular to a power backup control board, a display controller and an LED display control system. Background technique [0002] In the field of power backup technology, the existing technology has proposed a 2N power backup technology solution, which adds a backup power supply of the same specification to each power supply to achieve mutual backup; under normal circumstances, two power supplies work at the same time, when one of the power supplies fails , the other power supply has full authority to output power for the load to ensure the normal operation of the system. [0003] However, the system cost of the prior art is high, and the power design is excessive; moreover, too many backup power sources will increase the leakage current and increase the risk of electric shock. Contents of the invention [0004] Therefore, in order to overcome at least some of the defects a...

Claims

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Application Information

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IPC IPC(8): H02J9/06G09G3/32
CPCY02P80/10
Inventor 赵克晏韦桂锋
Owner XIAN NOVASTAR TECH
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