High Power for LED Display Board

[arm_learner]

I would like to know that what is the current solution solving the high power needed for the Large Matrix LED Display Board?

Thank you very much.

 

[CMOS]

Switch Mode Power Supply (SMPS) is what professional displays use.

 

[aadvedaboard]

I you don't have access to a Switched Power Supply you can use a Standard Power Supply Design with some extra components, like power transistors.

 

[arm_learner]

so, if there have a very large display, then there are few SMPSs will be used?

 

[dindeds]

Hello everyone,

It depends on how large the display matrix are and the display used (lamps, LEDs etc).
For large display (mostly) they are driven in multiplex mode anyway to reduce current consumption.
Yes, for display consuming more than a few Amps, SMPS have to be used since the cost to make the std PSU will be higher and power dissipation is an issue.

 

[bigaussie]

since powersupply from AC 230v,50 Hz direclty given to LEDs won't affect display, so use a high power rectified-filtered supply.

In case of multiplexing high current isn't issue mostly.