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https://www.circuitlab.com/circuit/bmq7pt/ign-sw/

when I dc sweep (batt. from 6-20) on this, most of the nodes look fine, including opout, but the "gate" node is always near ground. it remains that way even when I disconnect the mosfet from it, and lower R7 to a very small value.

I simplified it down and still no change

https://www.circuitlab.com/circuit/gw2x36/gate-grounded/

happens in safari and firefox. gate node behaves normally if I remove R8

is there a problem with the sweeper? this also happens if that 1meg resistor (R8) ties the opamp output directly to ground.

CL is case sensitive.

1m = 1e-3 = 1milli 1M = 1e6 = 1Meg

See:

https://www.circuitlab.com/docs/the-basics/#human_friendy_inputs

:)

huh. k or K causes it to display k. but m and M are different things and display differently. If it's going to pull that, it ought to display K always, not k. If it had shown lower case m and upper case K then I would have noticed the difference.

Another unambiguous route would be to go with nK and uK if it wants to "easily" support values below 1 while remaining clear.

Or they could just pop an error if you try to enter k for ohms. I guess what I'm saying is if they're going to be case sensitive, they need to go all in, not just make SOME units case sensitive and others not, for consistency's sake.

Thanks for the help.

that link from Ueinfopedia is a "make money from home" spamvertisement.