Hello All,
I'm having a real problem trying to get a MOSFET to work like it's suppose to( I think ).
Using an astable 555 multi vibrator output to switch MOSFET on|off is what I want to do. What I'm getting is a good square shape on the scope from the 555 but the MOSFET just stays on all the time.
The 555 output is at 12v 200ma at about 3ms on and 3ms off, there is 12v at the source and a steady 12v at the drain( a straight line on the scope ).
The MOSFET can handle 24V 70+ amps and operate at nano second speeds.
I want the MOSFET drain signal to look like the gate, right? Not happenin'.
Any help is much appreciated,
William
I'm having a real problem trying to get a MOSFET to work like it's suppose to( I think ).
Using an astable 555 multi vibrator output to switch MOSFET on|off is what I want to do. What I'm getting is a good square shape on the scope from the 555 but the MOSFET just stays on all the time.
The 555 output is at 12v 200ma at about 3ms on and 3ms off, there is 12v at the source and a steady 12v at the drain( a straight line on the scope ).
The MOSFET can handle 24V 70+ amps and operate at nano second speeds.
I want the MOSFET drain signal to look like the gate, right? Not happenin'.
Any help is much appreciated,
William