Activity for Andy aka
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Edit | Post #276224 |
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— | almost 4 years ago |
| Edit | Post #276225 | Initial revision | — | almost 4 years ago |
| Answer | — |
A: How do I design a boost converter? What are the basics I should know? An on-line boost converter calculator Image alt text Image from this website. The Operating Mode The circuit operates in either of two modes but, the voltage transfer equation is different for each mode. Therefore, you need to establish the operating mode before you can calculate duty cyc... (more) |
— | almost 4 years ago |
| Edit | Post #276224 |
Post edited: |
— | almost 4 years ago |
| Edit | Post #276224 | Initial revision | — | almost 4 years ago |
| Question | — |
How do I design a boost converter? What are the basics I should know? I need to design a simple boost converter like this: - Image alt text I want to control duty cycle from another circuit such as an MCU but, I'm unsure how to proceed. My requirements are: - - Input voltage 12 volts - Output voltage 16 volts - Load resistance is 5 ohms - Inductor 1μH ... (more) |
— | almost 4 years ago |
| Edit | Post #276200 |
Post edited: |
— | almost 4 years ago |
| Comment | Post #276154 |
*which is why they are coming to Codidact to see the canonical answer of "how to buy components"* - then it's not this answer or question. This question and answer is not that directly and it's done this way so as not to name names specifically. Point 6 and point 9 in the answer covers that as far as... (more) |
— | almost 4 years ago |
| Comment | Post #276154 |
I can't go around putting "don't buy from amazon or ebay or aliexpress or bang-good" because they may just begin to hit the mark in terms of being acceptable dealers in EE components. They are not today and show no signs of being reputable for Pro EEs. But let's say I did make a list then what about ... (more) |
— | almost 4 years ago |
| Comment | Post #276154 |
Exactly, so you don't buy from Amazon and you don't buy from amazon because they are not a reputable dealer (as of 2020). They are not a reputable dealer because they can't be trusted to deal in chips and electronic components. That has to be the conclusion. So, you take a trip to Intel and look to s... (more) |
— | almost 4 years ago |
| Comment | Post #276155 |
@Monica - yes, the upload image thing has been fixed by ArtOfCode. See my bottom answer that explains a work around /bodge fix for seeing the edit preview screen. (more) |
— | almost 4 years ago |
| Comment | Post #276154 |
I think you guys are just not thinking this through or just trying to be insincere. If you choose a component then you have looked on the web to find it and, where you find it, you find the data sheet. If the data sheet isn't there you don't use it (or persevere to find one). There is no HOLY reposit... (more) |
— | almost 4 years ago |
| Edit | Post #276197 |
Post edited: |
— | almost 4 years ago |
| Edit | Post #276203 |
Post edited: |
— | almost 4 years ago |
| Edit | Post #276203 | Initial revision | — | almost 4 years ago |
| Answer | — |
A: Viewing the potential live output when editing a question or answer. A work around has been found for this and I'm sure this will get a proper fix before long: - - Go to the edit button for your answer (for example) and press it - Notice that there is no live preview screen of the edit-in-progress as per this: - Image alt text - What you see below the edi... (more) |
— | almost 4 years ago |
| Edit | Post #276200 |
Post edited: |
— | almost 4 years ago |
| Edit | Post #276200 |
Post edited: |
— | almost 4 years ago |
| Edit | Post #276200 |
Post edited: |
— | almost 4 years ago |
| Edit | Post #276197 |
Post edited: |
— | almost 4 years ago |
| Edit | Post #276200 |
Post edited: |
— | almost 4 years ago |
| Edit | Post #276200 | Initial revision | — | almost 4 years ago |
| Answer | — |
A: Relationship between bode plot and pole zero diagram For any 2nd order low pass filter, the components (R, L and C for electrical and k, M and c for mechanical) can be reduced into two more meaningful quantities: - - \$\zeta\$ (the damping ratio) - \$\omegan\$ (the natural resonant frequency) Concentrating on the RLC circuit in the question, t... (more) |
— | almost 4 years ago |
| Edit | Post #276197 | Initial revision | — | almost 4 years ago |
| Question | — |
Relationship between bode plot and pole zero diagram What is the relationship between the pole zero diagram and bode plot? Case example: a 2nd order RLC low pass filter: - Image alt text $$\dfrac{V{OUT}}{V{IN}} = \dfrac{\frac{1}{j\omega C}}{R+j\omega L +\frac{1}{j\omega C}} = \dfrac{1}{j\omega RC +j^2\omega^2 LC +1} = \dfrac{\frac{1}{LC}}{\fr... (more) |
— | almost 4 years ago |
| Comment | Post #276166 |
@ArtOfCode - I think I can give more details on the preview pane not working because I've just done something that temporarily fixes it AND it does appear that I have the same issue on meta and Q n A. If I select "edit" then I get the screenshot as I've shown above. If then I use CTRL-mousewheel to z... (more) |
— | almost 4 years ago |
| Comment | Post #276166 |
@ArtOfCode - yes (cool) I can embed an image now. I have done so in the above answer - that image shows that I don't see the preview pane on the EE site (just taken new screenshot to check). (more) |
— | almost 4 years ago |
| Edit | Post #276166 |
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— | almost 4 years ago |
| Edit | Post #276166 |
Post edited: |
— | almost 4 years ago |
| Comment | Post #276154 |
If you can't find a data sheet then it's likely because there isn't one. Hence don't use the part. You find reputable sources based on searching around and looking for good electronic parts suppliers like Farnell, RS, Digikey, Mouser (for instance). And, importantly, if you target a part that you mig... (more) |
— | almost 4 years ago |
| Comment | Post #276166 |
@ArtOfCode - no nothing happening when I hit the image button. No different to earlier. Strange that it worked once on my EE Q and A but not again. (more) |
— | almost 4 years ago |
| Comment | Post #276166 |
Aha a downvote for pointing stuff out. Sounds very similar to stack exchange in this respect. Guys, I'm trying to help. Any news on when I will be able to post pictures @ArtOfCode? (more) |
— | almost 4 years ago |
| Edit | Post #276166 |
Post edited: |
— | almost 4 years ago |
| Comment | Post #276154 |
@manassehkatz I rejected your modification because clearly we don't agree. If I can't use the PDF logo in the answer for legal reasons then that's fine - I shall remove it and find another way of expressing it. But, seriously, there are a vast number of budding engineers and hobbyists out there who h... (more) |
— | almost 4 years ago |
| Edit | Post #276166 |
Post edited: |
— | almost 4 years ago |
| Edit | Post #276166 |
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— | almost 4 years ago |
| Edit | Post #276166 |
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— | almost 4 years ago |
| Comment | Post #276157 |
OK I've done that but, I can't post an image (although I've saved one) because the image insert button doesn't work ([there's a hole in my bucket dear Liza](https://en.wikipedia.org/wiki/There%27s_a_Hole_in_My_Bucket)). (more) |
— | almost 4 years ago |
| Comment | Post #276166 |
What I'm saying is that nobody has a right of entitlement to saying what a bug is. My opinion (any new user) on this site and how it seems to me SHOULD BE OF INTEREST and if it doesn't appear to be that, then that needs to be re-thought. (more) |
— | almost 4 years ago |
| Comment | Post #276166 |
I'm a guy that comes along (as a brand new user) and I find things that seem odd. It needn't be me; it can be anyone. So, even the most basic thing like me incompetently pressing the wrong button and saying it's a bug has validity because, I am in that unique position of being a brand new user. To me... (more) |
— | almost 4 years ago |
| Comment | Post #276166 |
.... Olin asked me along here to throw in my little bit and that's what I'm doing. Of course I may be wrong about this or that and need a slight poke in the eye as a reminder to work at things a bit more but, there are things I say that still look like bugs. (more) |
— | almost 4 years ago |
| Comment | Post #276166 |
@ArtOfCode No, I don't want to post it as a question on meta. Olin says these are system-wide issues and YOU say it is not a bug, a misunderstanding or same as SE. There is a huge difference between what you say and what Olin says so you guys need to get your cylindrical brown lumps together because ... (more) |
— | almost 4 years ago |
| Comment | Post #276157 |
Yes, yes, yes we've already done the java vs JS thing once. I have JS enabled on my chrome browser. Version installed: Version 83.0.4103.97 (Official Build) (64-bit). The double underscore has been resolved as "user incompetence". (more) |
— | almost 4 years ago |
| Edit | Post #276166 |
Post edited: |
— | almost 4 years ago |
| Edit | Post #276166 |
Post edited: |
— | almost 4 years ago |
| Edit | Post #276166 |
Post edited: |
— | almost 4 years ago |
| Edit | Post #276166 | Initial revision | — | almost 4 years ago |
| Answer | — |
A: Are we there yet? \$\color{purple}{\text{Are we there yet?}}\$ No, it's not ready: - The embed image doesn't seem to work anymore on the EE part of the site and neither does it work here. It did yesterday because I added an image to an answer I posted; but not today - I just get a message saying: - `javascr... (more) |
— | almost 4 years ago |
| Comment | Post #276157 |
Javascript was not blocked in google chrome - I checked. I also specifically enabled it for this site but no luck and I still can't see the preview pane. Maybe it's a chrome thing that you haven't got right yet? (more) |
— | almost 4 years ago |
| Comment | Post #276154 |
Have you ever noticed that when going to a component website that the data sheet link is usually a PDF icon. Hence why I deposited the PDF icon in the answer so, I presume that when you say "PDF icon means nothing here" you must mean something else. And no, I disagree that "anything" (presumably you ... (more) |
— | almost 4 years ago |