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Michael Karas
10/03/10 19:55
Read: 997 times
Beaverton Or

#178885 - An efficient relay driver...
Responding to: ???'s previous message
An efficient relay driver can be made with one of these very small dual transistor packages:

Here is the circuit example of using that dual package.

Here is a size comparison so you can see just how small that package really is.

Michael Karas

List of 10 messages in thread
8051 driving 2n3904      Tom Roth      10/03/10 18:53      
   NPN transistor...from port pin...      Michael Karas      10/03/10 19:25      
   The better way..      Michael Karas      10/03/10 19:43      
   Best is to reply inline in another posting.      Michael Karas      10/03/10 19:50      
      sorry!      Tom Roth      10/03/10 20:03      
   An efficient relay driver...      Michael Karas      10/03/10 19:55      
      Zetex, RIP.      Andy Neil      10/03/10 23:58      
   8051 driving relays      Andy Neil      10/03/10 23:59      
      Try a 'Search'.      Tom Roth      10/04/10 19:11      
         Bidirectional port driver topology      Kai Klaas      10/05/10 06:40      

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