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First of all, I hope that you are doing well during these "dark" days.
Now, I'm sure you are aware of the EC MOSFET's limitations, i.e., the strange behavior of it's body diode and the lack of parasitic capacitances. I'm sure that gate to source, gate to drain and drain to source capacitances can be added to the model, along with dials to set their value. Now I know that this app is intended to be a "beginner's" simulator, but I still strongly think that parasitic capacitances and body diode must be incorporated into the model. You can see in the post how these things affect the performance of the MOSFET. It really is important and makes a difference.
The next thing to take care of is it's body diode. It exhibits a very strange behavior, like I said before. It's forward voltage drop seems to be equal to the Gate-to-Source Threshold voltage of the MOSFET. It shows some oddities, apart from this, which are covered in this post: https://everycircuit.com/circuit/5690947426582528 .
(After working on these, consider creating an inbuilt MOSFET library with 4 or 5 commonly used N & P channel ones to start with. It can be made accessible as a pop up menu that appears on clicking on the MOSFET symbol in the main menu. The first MOSFET in the pop-up can be the configurable one and the rest and be the models of real ones).
Next, you need to add an Op-Amp with voltage rails soon. I know that I've been repeatedly making this request, but it is important to have this component as some circuits simply do not work with an Op Amp with fixed voltage rails. An exaple of that is https://everycircuit.com/circuit/6549804275204096 . Try increasing the input voltage above 20V and see what happens. Here is another example: https://everycircuit.com/circuit/4861123120332800 . I hope this convinces you to add this component. You need not remove the existing model, so that users can choose the component that is suitable for them.
Next, the center-tapped transformer. A user recently posted these: https://everycircuit.com/circuit/4669334868459520 and https://everycircuit.com/circuit/6585394991464448 .
I actually think that this user may have a point.
Next, let's talk about the V and A meters. Although they now have a fixed polarity, their symbols don't have a +/- sign to show which probe is which. We cannot determine the terminals until the simulation starts and the +/- sign appears. Please do add the +/- sign to the symbol itself or atleast color code the leads. Red for + and black for -, preferably.
The next item on the list is more about parasitics. A dial to set the ESR of a capacitor/inductor would be nice. Again, all of this may confuse beginners, so maybe add a simple/advanced switch in the settings menu. The simple mode should set all parasitics to zero and only allow certain component parameters to be altered, while advanced mode gives the user full control.
Apart from this, reporting a user's post itself (and not just comments) should be possible. I haven't yet reported a comment, so I don't know I they can be reported under the following categories: offensive, political/religious, sexual, spam. If not, add these categories.
I hope you add these things in your next update. And on behalf of all the EC users, developments, bug fixed and updates are highly appreciated and we are always eagerly waiting for new developments. This is my favourite and go-to simulator:)
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