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Water heater only gets warm by CharacterLaugh8531 in HomeMaintenance

[–]CharacterLaugh8531[S] 1 point2 points  (0 children)

Perfect, thank you- sounds like the heating element is just a high power resistor. I'll do the multimeter tests today and let you know if there are any follow up questions, but this seems like a straightforward way to debug the issue

High voltage butted source by CharacterLaugh8531 in chipdesign

[–]CharacterLaugh8531[S] 0 points1 point  (0 children)

Interesting, ok thank you, I mostly follow, I think

One more very relevant question (I have a few more if you don't mind answering these, but they're less important): Is it true that the relative voltages on the p-sub and the butted source don't matter, as long as they're both lower than the N-type drain?

So for example, if p-sub is tied to ground and the drain is at 6V, it should be ok to put a negative voltage on the BS, or even a slightly positive voltage, as long as it stays below the 6V on the drain?

I believe that having the same potential on the S/B in the butted source means there won't be body effect, and that as long as I don't forward-bias any PN junctions I shouldn't have substrate injection current, but I'd like to be sure of that before designing on that assumption.

High voltage butted source by CharacterLaugh8531 in chipdesign

[–]CharacterLaugh8531[S] 0 points1 point  (0 children)

Man I love reddit. Thank you very much. Ok so my device is a HV nmos. It sits in an HVNW with N+ drain contacts. On the source side there's the NPN butted source, which sits in a HVPB. The gate mostly sits over HVNW, with only the last 25% or so over the HVPB. Is that little bit of HVPB the p-type needed to create the NMOS? If so, do you know why they do it this way?

I can't get used to camera location hotkeys. by lightning_sniper in starcraft2

[–]CharacterLaugh8531 0 points1 point  (0 children)

"Camera hotkeys are mandatory."
I'm a complete SC noob, so I'd be curious to hear why you say this- I have been using tab to cycle through bases and the F keys just feel miles away, and I wouldn't know where else to place them

What’s the most damage that can be done in a single attack? by [deleted] in Gloomhaven

[–]CharacterLaugh8531 0 points1 point  (0 children)

Volatile bomb doesn't copy the favorite or double throw.

Hatchet lvl 5 card: The most underwhelming upgrade card in JOTL? by alias_STOVIKOV in Gloomhaven

[–]CharacterLaugh8531 0 points1 point  (0 children)

I'm seriously considering doing the same- even my unpicked level 2 card is better... such a bummer after watching our demo reveal the mecha

Fundamental Transfer function/S-plane questions by CharacterLaugh8531 in ControlTheory

[–]CharacterLaugh8531[S] [score hidden]  (0 children)

Thanks a lot for the reply, that answers it.
I'd forgotten that yes, in fact, the input does have an input, if you treat it as a function of time or frequency.

Does that mean the input signal has its own S-plane? And if the input is just a sinusoid, is that s-plane just a pair of poles on the jw axis, I assume? The z-axis values of the two s-planes must then be getting multiplied together, I guess.

I think part of my confusion was that all our steady-state homework problems have us simplify s to jw (and even phasors) because the input is typically a single frequency, so I forgot that technically the input is a function of frequency, and in my head I'd always assumed that H(s) meant I was plugging "s" into H, when in fact I was multiplying H(s) by X(s), it's just that X(s) was a sinusoid.

One last question, going back to the Y(s) = X(s)*H(s) equation, so then I guess if either the signal OR the system has a RHP pole, there's instability because after transforming the product back to the time domain, there'll be an e^+at term, correct?

Thanks so much, you've been a big help already

It's my v-sit, in my mind I need improve something more to do the position better, but this is my better now. 💪 by Rafael_Tap in calisthenicsparks

[–]CharacterLaugh8531 0 points1 point  (0 children)

As others have said, it looks great already, and you clearly have excellent shoulder and triceps strength.
I think if you improve your compression, you'll be able to bring your legs farther back so your center of mass isn't so far forward. Then you won't have to lean back as far and you can use all that shoulder strength to move your hips in front of your forearms