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???
06/18/08 06:11
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 		 #155991 - Give more infomation?
Responding to: ???'s previous message
Thank u very much for quick response.
- Isupplay 12vdc for solenoids.
- for flyback i will using 1n4148.
- It may be all solenoid switch same time.
- The frequency for switching solenoids 250 tme in a minute.

One thing I can't understand that MC side circuit operate on 5v and solenoid operate 12v. How the input and output sides of the opto coupler share the same GND bus. Please explain this.
Could you give me example diagrame.
Thanks


List of 40 messages in thread
TopicAuthorDate
How to drive solenoids?            01/01/70 00:00      
   Sure a MOSFET but do consider...            01/01/70 00:00      
      Give more infomation?            01/01/70 00:00      
         Suggestons            01/01/70 00:00      
            MOSFET burn out?            01/01/70 00:00      
               possibly            01/01/70 00:00      
               Discharging coil            01/01/70 00:00      
                  Overkill            01/01/70 00:00      
                  Most MOSFETs have those built-in.            01/01/70 00:00      
      same GND bus.            01/01/70 00:00      
         no            01/01/70 00:00      
   Use a solenoid driver!            01/01/70 00:00      
   same GND bus.            01/01/70 00:00      
      High in-rush current consideration            01/01/70 00:00      
         mosfet drive from logic level?            01/01/70 00:00      
            Availability vs Suitability            01/01/70 00:00      
            mosfet drive from logic level            01/01/70 00:00      
               for googling purposes            01/01/70 00:00      
                  not exactly            01/01/70 00:00      
                     using google            01/01/70 00:00      
   about the solonoid valve            01/01/70 00:00      
   ABOUT THE S.V.            01/01/70 00:00      
   H11B1 and IRF510 Drive solenoid But....?            01/01/70 00:00      
      Sounds like inadequate power supply            01/01/70 00:00      
         Suitable Power supply.            01/01/70 00:00      
            12V 6.5A?            01/01/70 00:00      
            Think about it!            01/01/70 00:00      
      do the math            01/01/70 00:00      
   12v 8A power supply            01/01/70 00:00      
      none, except            01/01/70 00:00      
         also            01/01/70 00:00      
      Maybe a better starting point is....            01/01/70 00:00      
      Ever heard of fuses...            01/01/70 00:00      
         difficult, ....            01/01/70 00:00      
            plural            01/01/70 00:00      
               I do not understand            01/01/70 00:00      
                  Split tree of protection...            01/01/70 00:00      
                     Absolutely!            01/01/70 00:00      
                        well,            01/01/70 00:00      
                        The name used...            01/01/70 00:00      

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