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???
07/24/04 01:55
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 		 #74775 - RE: Reed Switch Sensor
Responding to: ???'s previous message
Kashyap wrote:

I was thinking of using MCT2E to provide optical isolation...

Andy asked:

What is MCT2E?

Well, an opto coupler???

Have a look at here:

http://www.fairchildsemi.com/pf/MC/MCT2E.html

Andy asked:

Why do you need additional opto isolation with reed relays - they inherently provide galvanic isolation!

Nevertheless, in some applications it can make sense very well to keep the +5V of microcontroller and the supply voltage of relays separated by a galvanic isolation.

Kai

List of 35 messages in thread
TopicAuthorDate
Reed Switch Sensor            01/01/70 00:00      
   RE: Reed Switch Sensor            01/01/70 00:00      
      RE: Reed Switch Sensor            01/01/70 00:00      
         RE: Reed Switch Sensor            01/01/70 00:00      
   RE: Reed Switch Sensor            01/01/70 00:00      
   RE: Reed Switch Sensor            01/01/70 00:00      
      galvanic isolation twice?            01/01/70 00:00      
         RE: galvanic isolation twice?            01/01/70 00:00      
            RE: galvanic isolation twice?            01/01/70 00:00      
               But Why??            01/01/70 00:00      
                  RE: But Why            01/01/70 00:00      
                     This is how generally...            01/01/70 00:00      
                        RE: This is how generally...            01/01/70 00:00      
                     Reed Relay *INPUTS*            01/01/70 00:00      
                        RE: Reed Relay *INPUTS*            01/01/70 00:00      
                           RE: Reed Relay *INPUTS*            01/01/70 00:00      
                              some clarification for KAi            01/01/70 00:00      
                           RE: Reed Relay *INPUTS*            01/01/70 00:00      
                              RE: Reed Relay *INPUTS*            01/01/70 00:00      
                           You do NOT need an Opto!            01/01/70 00:00      
                              RE: You do NOT need an Opto!            01/01/70 00:00      
                                 RE: You do NOT need an Opto!            01/01/70 00:00      
                                 RE: You do NOT need an Opto!            01/01/70 00:00      
   Start again - what do you really want?            01/01/70 00:00      
      Assumed Scenario            01/01/70 00:00      
      RE: Start again - what do you really wan            01/01/70 00:00      
      RE: Start again - what do you really want?            01/01/70 00:00      
         more clarification            01/01/70 00:00      
            RE: more clarification            01/01/70 00:00      
         RE: Start again - what do you really wan            01/01/70 00:00      
            PLC not a option            01/01/70 00:00      
               RE: PLC not a option            01/01/70 00:00      
                  RE: PLC not a option            01/01/70 00:00      
   OPTO inputs from Reed Switch DONE            01/01/70 00:00      
   Admin please close this thread            01/01/70 00:00      

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