Gent,
I took all the advise I got from my previous thread and incorporated them into my circuit, but I still can't get some clean switching, this is my circuit du jour, including calculated DC Bias (credit goes to partsim.com):
Datasheet for NSS40300MZ4
And this is the transient analysis of PULSE, where ORANGE is left side of R4, and RED is base of Q2, and BLUE is collector of Q2:
And this is the reality, RED is base of Q2, and BLUE is collector of Q2 (only got a two channel sillyscope). 100mV/div and 500ns/div. Both are AC measurements
And this is part of reality too, RED is is left side of R4, 4V/div and 500ns/div (DC measurement):
I don't get it, why wont Q2 switch off properly? and why is the pulse distorted?
I took all the advise I got from my previous thread and incorporated them into my circuit, but I still can't get some clean switching, this is my circuit du jour, including calculated DC Bias (credit goes to partsim.com):
Datasheet for NSS40300MZ4
And this is the transient analysis of PULSE, where ORANGE is left side of R4, and RED is base of Q2, and BLUE is collector of Q2:
And this is the reality, RED is base of Q2, and BLUE is collector of Q2 (only got a two channel sillyscope). 100mV/div and 500ns/div. Both are AC measurements
And this is part of reality too, RED is is left side of R4, 4V/div and 500ns/div (DC measurement):
I don't get it, why wont Q2 switch off properly? and why is the pulse distorted?