In the circuit below I am generating a 1 Mhz square wave with a CMOS 555, sending to a MOSFET driver MAX4420 and then to the gate of the IRF510 MOSFET.
Two problems.
1)with the toroid NOT connected the signal is getting coupled or leaked into the drain.
2) when I connect the toroid, with or without the load, the signal is destroyed by what I think is back EMF??
No toroid:
With toroid. Same load or no load:
Two problems.
1)with the toroid NOT connected the signal is getting coupled or leaked into the drain.
2) when I connect the toroid, with or without the load, the signal is destroyed by what I think is back EMF??
No toroid:
With toroid. Same load or no load: