EEVblog Electronics Community Forum
Electronics => Beginners => Topic started by: Alexandros81 on April 05, 2018, 01:58:05 pm
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Hi.
I have created the circuit shown in EasyEDA. I took the circuit from the Malvino book of Electronics.
I try to simulate it and I get the waveform attached. This is not what I should get.
I attach also the transformer settings.
thanks
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What did you expect? The curve from the simulation says it shows Vs, the signal on the transformer primary, as a sine wave. Did you intend to show VL?
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What did you expect? The curve from the simulation says it shows Vs, the signal on the transformer primary, as a sine wave. Did you intend to show VL?
VL is the blue straight line trace (check the upper left corner of the "scope" window).
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Maybe it's working, you just dont have the vertical resolution. Try changing your transformer ratio from 0.1 to 1 to double check.
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I've changed the transformer ratio to 1 and I don't see any change.
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Are all the wires truly making contact at the pins of each component?
Can you generate a netlist to verify?
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Is this the netlist?
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Check the polarity of the secondaries.
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Is this the netlist?
Yes, right at the top.
You can see:
V1 is a sine wave wired to you probe VS & GND.
Also, you can see that:
R1 is 1K and wired to GND and probe VL.
The second part looks like a new component is being defined, but, it stops there without any wiring below it...
However, there is no transformer wired, or, listed in the netlist, even though it is shown in the schematic.
Is your wires in your schematic actually making electrical contact with the transformer's inputs?
When wiring, have you snapped to electrical grid?
OR
Do you have the model for the transformer installed?
Note: I have not used EasyEDA, but, this is a similar problem I once had with Protel99's Schematic capture with custom components. Perhaps someone else here on the forum has seen this before with EasyEDA.
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Is your wires in your schematic actually making electrical contact with the transformer's inputs?
Yes they do.
When wiring, have you snapped to electrical grid?
OR
Do you have the model for the transformer installed?
Can you explain more these questions?
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Also same problem with this more simple circuit.
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The diodes are not wired in the netlist.
There is clearly a defined diode hence the line before the .control, but, it's not wired to any of the net names.
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Use components from the library that have attached SPICE models.
Or if none exist... use LTSpice or something instead?
Tim
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Use components from the library that have attached SPICE models.
How do I see which components have attached SPICE models?