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???
06/18/08 08:41
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 		 #155999 - MOSFET burn out?
Responding to: ???'s previous message
In previous expriment i was use 12v 400ma solenoid with BS170 (MOSFET 500ma). SOlenoid is working but in few second MOSFET burn out. In this circuit 12v 1amp external separate power supply and 5v seperate power supply for MCU. Can any body give me why MOSFET burn out.

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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