[Bug] Diode not dioing

[Lipino777]

I think the picture is selfexplenatory:

WhatInTheDiode.txt
it just goes trough. i know diodes IRL can let some tiny ammount of current trough, but I assume this default diode is supposed to be a theorethically perfect diode

[fritzw]

Yout assumption is wrong, the default diode model is not an ideal diode. See also #88.

But I agree that combining logic inputs (which draw no current) with diodes leads to confusing behavior. Maybe there should be a model for an ideal diode?

[Lipino777]

Greetings, i see now. Thank you for the clarification and sorry for the misunderstanding. Do i delete this issue now? I am sort of new to this kind of thing. Also thank you for taking time to review this. Have a nice day/evening.

…

-Lipino

On Wed, Jan 8, 2025, 21:04 Fritz Webering ***@***.***> wrote: Yout assumption is wrong, the default diode model is not an ideal diode. See also #88 <#88>. But I agree that combining logic inputs (which draw no current) with diodes leads to confusing behavior. Maybe there should be a model for an ideal diode? — Reply to this email directly, view it on GitHub <#137 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/A6FJATAAN342HSSTB2OQH4T2JWAEFAVCNFSM6AAAAABUZ7O336VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDKNZYGUZTSMBVGI> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[pfalstad]

The diode is not ideal. But I think the bigger issue is that the counter inputs ARE ideal. They have infinite input impedance. So they draw no current at all; they only look at the input voltage. Since there's no current across the diode, there's no voltage difference either. A pulldown resistor would take care of the problem.