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DSE
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With the new pixels (dumb and smart) is there a issue with using or building your own power supply using diodes and resisters from standard house hold current (110vac)?

 

Is there a issue with the wave format of the power? Sign? Square? :blink:

 

Any thoughts? :huh:

 

 

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There is no issue as long as it is done properly.  Remember that using resistors in there will cause voltage drops as you add LEDs.  Also, a home built supply as you mention gives very little surge protection.  You can probably get reasonable regulation with a off-the-shelf regulator like a 7812, but, this is for very low current so you would have to build a lot of them.  For the money, there are a lot of power supplies available for a reasonable price.

 

Just my 2 cents worth.

 

Dennis

Edited by Takoda
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There is no issue as long as it is done properly.  Remember that using resistors in there will cause voltage drops as you add LEDs.  Also, a home built supply as you mention gives very little surge protection.  You can probably get reasonable regulation with a off-the-shelf regulator like a 7812, but, this is for very low current so you would have to build a lot of them.  For the money, there are a lot of power supplies available for a reasonable price.

 

Just my 2 cents worth.

 

Dennis

 

Excellent point

I guess my frustration comes from sourcing the power supplies and what ones are good or bad but as you said they are a lot cheaper then building up a board.

 

Any thoughts on who is a reputable supplier?

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