Hello All,
   
  I am doing a project, which involves at least 40 circuits each involving a pic16f628, you may consider each circuit as a hub. I wanna connect the hubs serially to each other. I have a single 30V supply, and I wanna connect this to the final hub, each hub has 7805 regulators for feeding pic16f628.   The circuit seems as below.
   
               30VDC--HUB1-->HUB2->-HUB3-->.........HUB40
   
  Inside of each HUB looks as below
   
     supply connection from previous hub---7805---pic16f628---
   
            
  My question is that, what about the current amount of 30VDC, I know that pic16f84 needs low current. But to feed all the HUBs the suppy should provide much more current.  I know that 7805 can provide up to 1A. Since their a loos on line also, If supply provide much current, for instance 0.5A, i.e., 30V/1A.  Can the 7805 output damage the pics16f628s.  How about your comments?
   
  Many thanks
  Orhan GAzi
   
   

       
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