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???
05/12/06 18:45
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#116124 - that is what a H bridge usually is used
Responding to: ???'s previous message
All i can seem to find are Motor drivers.
that is what a H bridge usually is used for.
  *V----*                -V
        |------------*    |
        |            |    |
   +--- | ----------------|
   |    |            |    |
   O    O            O    O
       /                 /
      /                 /
      |                 |
      +--  load       --+
a H bridge is 2 synchronzed electronic switches as seen above. The important thing if you figure on making your own from discretes is that you need "dead time" between the 2 states or you will - once only, it goes poof - have a short between Vcc and Gnd.

Erik

List of 22 messages in thread
TopicAuthorDate
Interfacing a Bi-colour LED            01/01/70 00:00      
   a link to the bi-color LED datasheet            01/01/70 00:00      
      Datasheet!!            01/01/70 00:00      
   LED info            01/01/70 00:00      
      He is right, the Vf max for the LEDs you            01/01/70 00:00      
         More info on H bridge?            01/01/70 00:00      
            that is what a H bridge usually is used            01/01/70 00:00      
               be careful, but roll-yer-own            01/01/70 00:00      
   Why no use a DPDT 5VDC relay?            01/01/70 00:00      
      LED go poof            01/01/70 00:00      
         Port pin go POOF!            01/01/70 00:00      
         ?`            01/01/70 00:00      
            Two inverters            01/01/70 00:00      
               darn            01/01/70 00:00      
               YES!            01/01/70 00:00      
                  Third color possible?            01/01/70 00:00      
               Very nice however            01/01/70 00:00      
                  Two NAND's?            01/01/70 00:00      
   how many LEDs            01/01/70 00:00      
      a slight problem            01/01/70 00:00      
         dynamic refresh            01/01/70 00:00      
            sure, but            01/01/70 00:00      

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