Activity for Andy aka
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Edit | Post #286547 | Initial revision | — | over 2 years ago |
| Answer | — |
A: Unexpected impedance spike when paralleling capacitors I think you can make a pretty good case for the spike being caused by the addition of the 100n and 10n capacitors: - Image alt text > I assume that the solder blobs between capacitors introduced a series > inductance that in turn caused the spike in impedance at 8MHz. It can't be ruled out ... (more) |
— | over 2 years ago |
| Comment | Post #286537 |
Your graph is for a PNP transistor yet you have drawn an NPN transistor (more) |
— | over 2 years ago |
| Edit | Post #286493 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286493 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286493 | Initial revision | — | over 2 years ago |
| Answer | — |
A: Thévenins Theorem for Transistor Circuit > Is the Thevenin's Theorem being applied incorrectly for the circuit ? It's being applied inaccurately. The final Thevenin voltage should be 2.782 volts (rather than your calculated value of 2.61 volts). I calculate the Thevenin resistance to be 759 ohms (near enough to yours so that it doesn'... (more) |
— | over 2 years ago |
| Edit | Post #286435 |
Post edited: |
— | over 2 years ago |
| Comment | Post #286435 |
You can tweak the MOSFET VGS threshold voltage with the addition of a VSB voltage. See [this](http://cmosedu.com/jbaker/courses/ee420L/s15/students/yurgelon/lab8/lab8.htm) (more) |
— | over 2 years ago |
| Edit | Post #286435 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286435 | Initial revision | — | over 2 years ago |
| Answer | — |
A: What is this fourth connection in NMOS device? That fourth connection is the bulk/body/substrate connection: - Image alt text Image from here. On a normal 3 terminal MOSFET the "body" is connected to the source. On your device, the 3 n-channel MOSFETs share a common bulk pin that should usually be connected to the most negative voltage of y... (more) |
— | over 2 years ago |
| Edit | Post #286299 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286299 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286299 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286299 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286299 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286299 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286299 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286299 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286299 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286299 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286299 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286299 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286299 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286299 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286299 |
Post edited: |
— | over 2 years ago |
| Edit | Post #286299 | Initial revision | — | over 2 years ago |
| Answer | — |
A: What reactance actually is? "React" implies a response to an "event". - For an inductor, the "event" is a change in current, \$\frac{di}{dt}\$ - For a capacitor, the "event" is a change in voltage, \$\frac{dv}{dt}\$ $$$$ So, an inductor or capacitor will produce a proportional reaction (or response) to something c... (more) |
— | over 2 years ago |
| Comment | Post #286020 |
The maximum allowable level of the input voltage ripple is not calculated; it is something you, as an engineer decide upon. (more) |
— | over 2 years ago |
| Edit | Post #285994 |
Post edited: |
— | over 2 years ago |
| Edit | Post #285994 |
Post edited: |
— | over 2 years ago |
| Edit | Post #285994 |
Post edited: |
— | over 2 years ago |
| Edit | Post #285994 | Initial revision | — | over 2 years ago |
| Answer | — |
A: Why are some PCB design software programs considered to be 'hobbyist' programs? > Why are some PCB design software programs considered to be 'hobbyist' programs? Elitism and, folk with money to burn. I've used Altium, PADs, OrCad, Eagle and my current personal favourite is KiCAD. Yeah it's a bit messy on libraries but it's a small price to pay. I pretty much like Eag... (more) |
— | over 2 years ago |
| Comment | Post #285928 |
Mike, I'm not demanding anything and I have no interest in the politics of the site. (more) |
— | almost 3 years ago |
| Comment | Post #285921 |
It seems a rather lame discussion to some of those on SE. I mean, recently one guy kept having a go at me and we both got banned for 5 days. Another more recent SE discussion got me banned for a week despite the idiot totally trying to misrepresent what I said in his answer i.e. his answer was all ab... (more) |
— | almost 3 years ago |
| Comment | Post #285921 |
@#53110 cheers Mike (mike?) (more) |
— | almost 3 years ago |
| Comment | Post #285921 |
@#53042 I'm happy to take a look at the carnage of your endeavours that happened before I joined. I'm also happy to give you my opinion on what you wrote but, I can be brutally honest sometimes so, if you are up for it, leave a link. (more) |
— | almost 3 years ago |
| Comment | Post #285861 |
No I haven't. Just because the transmission-line symbol looks like coax, it doesn't mean it has to be regarded as coax. (more) |
— | almost 3 years ago |
| Comment | Post #285928 |
@#8062 no problemo (more) |
— | almost 3 years ago |
| Comment | Post #285921 |
I really don't get the in jokes here. (more) |
— | almost 3 years ago |
| Edit | Post #285928 |
Post edited: |
— | almost 3 years ago |
| Edit | Post #285928 |
Post edited: |
— | almost 3 years ago |
| Edit | Post #285941 | Initial revision | — | almost 3 years ago |
| Answer | — |
A: How can we grow this community? Embedding pictures is a pain in the ass. First you have to find the picture and save it locally then you have to drop it onto a special box before it can be processed. On SE, you just drag it to where you want it to appear and it's job done. There's still the issue of an embedded picture not showing ... (more) |
— | almost 3 years ago |
| Comment | Post #285820 |
I totally agree - simplicity is the key word here. Get rid of non useful red-tape (more) |
— | almost 3 years ago |
| Comment | Post #285106 |
I didn't upvote the question (something I don't normally do in the other place) but, I did answer it and, I think it's fair game that if I answered it, that should be regarded as equivalent to an upvote. Hey, if you answered it just to reveal how some parts of the question were undecipherable or full... (more) |
— | almost 3 years ago |
| Comment | Post #285921 |
Totally and thoroughly agree. (more) |
— | almost 3 years ago |
| Edit | Post #285928 |
Post edited: |
— | almost 3 years ago |