I've attached two files.
The one with the three diagrams shows the simulation working as intended. The one with only one diagram shows a result I don't understand.
I'd like this circuit to do three things:
- Only turn on when a master device is turned on as well and turn off when the master is turned off. I'm doing this with a MOSFET
- Protect for overcurrent (5A). I'm doing this with a fuse (represented by a switch in this simulation)
- Have a status LED. off when off, green when on and the fuse isn't blown, red when on and the fuse is blown
If i used a normally open relay to turn on and off according to the voltage given by the master device I know this would work, but I'd like to do it with a MOSFET to keep the build small as I have several of these to fit in the enclosure.
Is there something I don't understand about MOSFETs used as switches? Could this be a glitch of the simulation?
If so, what characteristic / parameter do I have to look for to select the proper FET for this application once I'm ready to go to the breadboard?
The one with the three diagrams shows the simulation working as intended. The one with only one diagram shows a result I don't understand.
I'd like this circuit to do three things:
- Only turn on when a master device is turned on as well and turn off when the master is turned off. I'm doing this with a MOSFET
- Protect for overcurrent (5A). I'm doing this with a fuse (represented by a switch in this simulation)
- Have a status LED. off when off, green when on and the fuse isn't blown, red when on and the fuse is blown
If i used a normally open relay to turn on and off according to the voltage given by the master device I know this would work, but I'd like to do it with a MOSFET to keep the build small as I have several of these to fit in the enclosure.
Is there something I don't understand about MOSFETs used as switches? Could this be a glitch of the simulation?
If so, what characteristic / parameter do I have to look for to select the proper FET for this application once I'm ready to go to the breadboard?
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