I am facing problem with voltage regulators model. (am using 3 terminal models)
Do they give potential difference even without voltage source?
So, i try connect Vin to voltmeter & common to another probe, it gives 24V difference for LM7824. same goes for other regulator model.
I am trying to simulate a 0V - 30V square pulse mode.
when the pulse is at 0v. the regulator gives weird reading by changing the common node to -24V, thus affecting my entire circuit.
I believe this is the cause that gives me false reading on the oscilloscope.
I tried probing a LM338 regulator which is the only model I have on hand right now. it does not give reading.
Theoritically, unless there is a capacitive module inside the regulator storing the charges, else I dont think there should be any potential difference.
Figure:
Figure1 shows a simple voltmeter probe
Figure2 is the part of Figure 3 that gives me problem (i believe)
My research project, currently is to create a high current pulse ) driving amplifier (up to 13.5Ampere to drive a experimenting organic LED.
I am using a LED model provided in the library as test specimen before i build the real circuit.
I would also like to know how to edit the LED turn on voltage to higher, to further match my OLED specimen.
