Could someone please offer their opinion on whether my circuit would work well for turning on an output via a CPLD. The output voltage at PIN0 will be 3.3V. I want logic 1 to turn on my Q1.
Regards, oldmanraskers.
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Could someone please offer their opinion on whether my circuit would work well for turning on an output via a CPLD. The output voltage at PIN0 will be 3.3V. I want logic 1 to turn on my Q1.
Regards, oldmanraskers.
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Hi,
I set up your circuit on LTSPICE and there are a couple problems. First of all I am assuming that you are putting a load between Vdd and the drain of your MOSFET. Second your choice of IRF9530 will not work. IRF9530 is a P channel Enhanced MOSFET. An N Channel MOSFET like IRF511 will work in your application if the load is between Vdd and the drain of the MOSFET.
Here is a schematic:
If you can run LTSPICE I can send the simulation to you too. Let me know if you hve further questions.
John
Hi oldmanraskers,
Here is the SPICE file for the simulation that I ran. If you don't have the LTSpcie program yet just go to the Linear Technologies web site and down load it as it is free. It seems that I do not know how to give you an executable file in this posting. Here is the bitmap of the circuit that I put into LTSPICE. You can download the program and draw the schematic and run it. Signal Supply V1 is 3.3Volts square wave with 2 uSecond rise and fall time. 10 millisecond Duration and 20 millisecond Period. Power supply V2 is just 12 Volt DC.
John
Hi oldmanraskers,
Here is the SPICE file for the simulation that I ran. If you don't have the LTSpcie program yet just go to the Linear Technologies web site and down load it as it is free. It seems that I do not know how to give you an executable file in this posting. Here is the bitmap of the circuit that I put into LTSPICE. You can download the program and draw the schematic and run it. Signal Supply V1 is 3.3Volts square wave with 2 uSecond rise and fall time. 10 millisecond Duration and 20 millisecond Period. Power supply V2 is just 12 Volt DC.
John