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i do not have a problem im just confused on how to simulate that red boxed part which is the input of the NOR gate and the output of the logic gateHi tie,
Please explain what you are asking?
What problem do you have with the circuit?
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what do you mean? this a logic gateHi,
What are the parameter settings for that digital gate?
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Update:
Hi tie,what do you mean? this a logic gate
yes i have removed the 5 volts and kept the other 2 connections but im confused as to why when simulating the output im not getting a pulse, its just staying constant at 0V which obviously means something is wrongThe 'A' devices in LTspice are logic gates and they require an awareness of the settable parameters associated with their proper operation. In your schematic you have chosen a 5-input OR gate with complementary outputs. You have also tied one of the inputs to what looks like 5 volts. This will guarantee the 'true' output will ALWAYS be high and the complementary output will ALSWAYS be low. You must have skipped the HELP page for these devices. That was an ill-advised choice on your part.
I apologize, but where in the video does he say or show that i have watched a couple of times but im missing itHi tie,
Did you see in that video you have to set Vhigh voltage for the OR gate model?
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i get what these are in the context for example of a pulse wave but not a logic gate so do you mind explaining, I apologize for the silly questions
You have your OR gate configured for 1V logic, but your power supply is 5V. Change the Vhigh setting in your OR gate to Vhigh=5.what is wrong?
You have your OR gate configured for 1V logic, but your power supply is 5V. Change the Vhigh setting in your OR gate to Vhigh=5.
Right-click the MOSFET symbols and swap those default MOSFETs for 'proper' ones from the provided library.
i have attached the asc file below and a link of the lm393A spice fileHi tie,
I must repeat, please post a full/complete asc file, a cropped off clip does not help us.
Where did you get the LM393 model?, and are you sure you have the pins on the LM393 matched correctly to the model file?
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by Aaron Carman
by Aaron Carman
by Aaron Carman