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???
02/25/03 21:22
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 		 #40081 - RE: Connecting an LED to an 8052
Responding to: ???'s previous message
Hello Mr. Chris Brooks,


So far all of these fancy schematic have one flaw. They pull their current from the regulated power supply. LED's should get their current source from the unregulated part of the power supply. This will prevent the regulator from being stressed unnecessarily. 


Most 5 V (7805 typical) devices only have about 1  amp of regulation and LED's are current hogs. It doesn't take to much to start to hit the upper limit on 1 amp regulations.


You also save on heat dissipation. Since the  current is not regulated there is no need to provide heat sinking. 


Regards,


Charles Bannister

List of 40 messages in thread
TopicAuthorDate
Connecting an LED to an 8052            01/01/70 00:00      
   RE: Connecting an LED to an 8052            01/01/70 00:00      
      RE: Connecting an LED to an 8052            01/01/70 00:00      
      Figure #2 like this?            01/01/70 00:00      
         RE: Figure #2 like this?            01/01/70 00:00      
            RE: Figure #2 like this?            01/01/70 00:00      
               RE: Figure #2 like this?            01/01/70 00:00      
                  RE: Figure #2 like this?            01/01/70 00:00      
                     RE: Figure #2 like this? Rob            01/01/70 00:00      
                        RE: Figure #2 like this? Rob            01/01/70 00:00      
                  RE: Figure #2 like this?            01/01/70 00:00      
                     RE: drawing            01/01/70 00:00      
                        RE: drawing            01/01/70 00:00      
                           RE: drawing            01/01/70 00:00      
                              RE: drawing            01/01/70 00:00      
               Jackson Pollock?            01/01/70 00:00      
                  RE: Jackson Pollock?            01/01/70 00:00      
                     RE: Perpetual Energy / Chris            01/01/70 00:00      
                        RE: Perpetual Energy / Chris            01/01/70 00:00      
            RE: Figure #2 like this? Steve            01/01/70 00:00      
   RE: Connecting an LED to an 8052            01/01/70 00:00      
      RE: Connecting an LED to an 8052            01/01/70 00:00      
         RE: Connecting an LED to an 8052            01/01/70 00:00      
   RE: Connecting an LED to an 8052            01/01/70 00:00      
      RE: Connecting an LED to an 8052            01/01/70 00:00      
   RE: Connecting an LED to an 8052            01/01/70 00:00      
      RE: Connecting an LED to an 8052            01/01/70 00:00      
         RE: Connecting an LED to an 8052            01/01/70 00:00      
            RE: Connecting an LED to an 8052            01/01/70 00:00      
               RE: Connecting an LED to an 8052            01/01/70 00:00      
               RE: Connecting an LED to an 8052            01/01/70 00:00      
                  RE: Connecting an LED to an 8052            01/01/70 00:00      
   RE: Connecting an LED to an 8052            01/01/70 00:00      
   *** LED Page updated ***            01/01/70 00:00      
      RE: *** LED Page updated ***            01/01/70 00:00      
   RE: Connecting an LED to an 8052            01/01/70 00:00      
   RE: Connecting an LED to an 8052            01/01/70 00:00      
      RE: Connecting an LED to an 8052            01/01/70 00:00      
         RE: Connecting an LED to an 8052            01/01/70 00:00      
   RE: Connecting an LED to an 8052            01/01/70 00:00      

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