10v Common Cathode 7 segment LED Display - Electronic Circuits Projects Diagrams Free

jon.was.here · 20th May 2008, 09:06 PM

I was using a large (4") 10v Common Annode 7 segment LED display controlled by an AVR for a counter circuit, but I found some really cheap Common Cathode displays that I was thinking about trying out.

I can't figure out an easy way to sourse 12v to the display without using lots of transistors. On the CA displays, I can just sink the 12v's much easier.

Is there a chip I can buy that would convert the 5v's from my microcontroller to the 12v that I need to sourse the LED segments on a Common Annode display?

Here is a link to the datasheet if needed:

LED's/LCD's - LED Display - 7SR40011ES

Any help would be appreciated!

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20th May 2008, 09:06 PM	(permalink)
jon.was.here	10v Common Cathode 7 segment LED Display I was using a large (4") 10v Common Annode 7 segment LED display controlled by an AVR for a counter circuit, but I found some really cheap Common Cathode displays that I was thinking about trying out. I can't figure out an easy way to sourse 12v to the display without using lots of transistors. On the CA displays, I can just sink the 12v's much easier. Is there a chip I can buy that would convert the 5v's from my microcontroller to the 12v that I need to sourse the LED segments on a Common Annode display? Here is a link to the datasheet if needed: LED's/LCD's - LED Display - 7SR40011ES Any help would be appreciated!