Power supply topology system of LED (Light-Emitting Diode) display module

A display module and topology technology, applied in the power field, can solve the problems of wasting useless power consumption, increasing module heat temperature, harmonic pollution, etc., and achieve the effect of reducing transmission loss and increasing conversion efficiency

Inactive Publication Date: 2011-05-11
KONKA GROUP
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  • Abstract
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Problems solved by technology

[0002] In the prior art, an ordinary power supply is used to drive the LED display screen, and the LED needs to be driven by a low-voltage DC. There is a drive power supply module outputting 5V+1%. The relatively fixed output adjustment range of this power supply cannot meet the optimal setting after the LED is turned on; in addition The low-voltage transmission of the power supply wastes too much useless power consumption and increases the heat temperature of the module; in order to reduce the loss of low-voltage DC current in various transmission links, a large number of low-power switching power supply modules are generally used for power distribution of the display screen. Local low-voltage DC power supply mode, this implementation method solves the low-voltage transmission loss, but brings problems such as harmonic pollution

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  • Power supply topology system of LED (Light-Emitting Diode) display module

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[0019] The following content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, many simple deduction or substitutions can also be made, which should be regarded as belonging to the protection scope of the present invention.

[0020] Such as figure 1 As shown, the present invention provides a LED module power supply topology system, which includes: AC power input interface 100, AC power filtering and PFC (PowerFactor Correction, power factor correction) module 110, module auxiliary power module 120, DC bus 130 , a plurality of main power conversion circuit modules 140 and a plurality of LED dot matrix display modules 150 .

[0021] The AC power input in...

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Abstract

The invention provides a power supply topology system of an LED (Light-Emitting Diode) display module, comprising an AC (Alternating Current) power supply input interface, an AC power supply filtering and PFC (Power Factor Correction) module, a module auxiliary power supply module, a DC (Direct Current) bus, a plurality of main power supply conversion loop modules and a plurality of LED dot matrix display modules; the AC power supply input interface is connected with the AC power supply filtering and PFC module; the AC power supply filtering and PFC module is connected with the module auxiliary power supply module and the DC bus; the DC bus is connected to the module auxiliary power supply module and the main power supply conversion loop modules; and the main power supply conversion loop modules are connected with the LED dot matrix display modules.

Description

technical field [0001] The invention relates to the electric power field, in particular to an LED display module power supply topology system. Background technique [0002] In the prior art, an ordinary power supply is used to drive the LED display screen, and the LED needs to be driven by a low-voltage DC. There is a drive power supply module outputting 5V+1%. The relatively fixed output adjustment range of this power supply cannot meet the optimal setting after the LED is turned on; in addition The low-voltage transmission of the power supply wastes too much useless power consumption and increases the heat temperature of the module; in order to reduce the loss of low-voltage DC current in various transmission links, a large number of low-power switching power supply modules are generally used for power distribution of the display screen. Local low-voltage DC power supply mode, this implementation method solves the low-voltage transmission loss, but brings problems such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
Inventor 任兴业
Owner KONKA GROUP
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