thanks, i dont have the LM339 in my pspice package thats why i chose to use the LM324.How does your circuit detect the current?
V9 in series with U1A which makes no sense. If you want V9 to power the op amp it needs to have the negative side grounded and the positive side going to pin 4. There should be no connection to V3.
The LM324 is a slow op amp and will not rapidly turn-on the MOSFET in response to a signal. Better to use a comparator such as the LM339 which has a much faster response.
does the attached file make more sense now? or am i still doing something wrong.
as to current detection for now i have no ideas, wot i do on pspice is to put a current marker on my load(resistor+inductor combination)
please look at graph
The 2nd graph shows what the voltage at the mosfet drain looks like.
i am not sure i am doing this right yet.
i know the max current across my load is 2.3A ( source being 24 and impedance of load being 10.48)
however what i want to show is that the overvoltage causes the current in the load to increase beyond 2.3A thereafter showing that the mosfet by switching off interrupts the circuit and allows the current in the load to dissipate and drop back down to 2.3A
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