I've got a set of 4 Common Cathode 7 Segments. I am going to be driving them from an AtMega48 via an 4511.
Now, I've been reading up on Google and such, and it is suggested to use transistors to handle the power load.
So, this is what I came up with. Does that make sense? Each pin output of the 4511 to the 7 Segment has it's own transistor, but no resistor. The segment itselfs has a common ground. Only the first three are shown to make to picture somewhat more clear.
Also, I do not really understand, but both the VCC on the chips and the line to the transistors comes from the same source. I figure that it will then pull current directly from the power source, instead of through the MCU. Is that correct?