Most useful circuits? New project - Page 1
Forum section: electronics / projects

author: Hammie217
author_rank: Newbie
timestamp: July 27, 2020, 07:47:07 pm
content: When working on projects common building blocks are used constantly. Finding simple and reliable information around these circuits can be hard and deriving them each time is a pain. To get around this I recently bought the domainhttps://fortheloveofcircuits.co.uk/and i'm now trying to make a simple log of common circuits perfect for a quick lookup when designing and for a barebones explanation of how the circuits work.I thought it a good project to share with the maker and hacker community to help speed things up with your projects. It is definitely still a work in progress and i'd like to get opinions on your most useful circuits and derevations to add to the site. If you'd like to be involved anymore or see how simple the code is it's live at gitHub here:https://github.com/Hammie217/forTheLoveOfCircuitsThanks,Hamish

author: SilverSolder
author_rank: Super Contributor
timestamp: July 27, 2020, 09:54:27 pm
content: Quote from: Hammie217 on July 27, 2020, 07:47:07 pmLooks cool!How about adding a Javascript calculator to each of the circuits to help choose the component values?That would really be something...

author: RJSV
author_rank: Super Contributor
timestamp: July 29, 2020, 02:18:13 am
content: Hi, I first think of CD4017 sequential (decoded) decimal counter, and CD4013 dual latch is also heavily used. You don't have such tight supply accuracy with CMOS.The CD4017 has those 10 outputs and an overflow when count goes from '9' to zero. So having two IC's gives a count up to 99. Now, don't think in complex terms like for driving a 7 segment display, a fool's errand (I just wanted to use that saying, sorry).What you CAN do is get a simple output, say for ex, say you want a bell ring every time count hits '7' and you want to reset on count = 8. Just hook up to the pin for 'count =7' and hook the pin for 'count =8' straight to IC reset pin (you probably have to invert that, if the IC needs a low-true reset).For the case if using CD4013 flip flop, it is liberating as hell to avoid the whole 'Must use a 555 timer, for any circuit timing' mindset. Of course you can do part of your timing using an LM339 for analog ramps, in conjunction with a CD4013 for producing your digital clocks and single shot timers etc.The whole 555 timer thing seemed almost cult-like to me, however many, many designers would use a 555 without (my) particular slant (! lol).Hope you can look at some books Forest Mims type are excellent, EXCELLENT.Look for various titles like 'Circuit Cookbook', 'Analog IC's for Homebrew Circuits'; Any similar titles you can imagine to search web for books.RJ in Hayward. thanks

author: wizard69
author_rank: Super Contributor
timestamp: July 29, 2020, 02:53:05 am
content: Nice work. I do mean work because I realize the effort required to get HTML and math to look right.If I may I have a couple of suggestions.Break up the pages into logical chapters. For example a page for transistors, a page for op-amps and so forth.For things like transistor circuits maybe a brief introduction of each configuration. So say this one is a commonly used inverter, & etc.Quote from: Hammie217 on July 27, 2020, 07:47:07 pmThe bare bones or elementary explanation is good, but it might be ideal to supply a link or popup that gives a deeper explanation. I like to see the details quickly when they are needed. It is sort of like walking up to a machine running a lot of PID loops. You want to see the basic information in the run mode when walking up to the MMI but when actually trying to work with the loop you want quick access to all of the variables or knobsQuoteAs for the web site I have exactly zero experience with Jekyll so I'm not sure I can offer up valid comments on the web site. However I'm already concerned about too much being in a couple of files. It just seems like this will lead to a big maintenance headache as the site expands. I'd rather see latex code in separate files for each equation subset that you need rendered but that is me. I also like lots of little include files and that can drive people nuts.

author: Hammie217
author_rank: Newbie
timestamp: July 29, 2020, 08:39:38 pm
content: Thanks all for your comments, really appreciated.Quote from: SilverSolder on July 27, 2020, 09:54:27 pmI like the idea of implementing a super simple calculator to make it even easier and faster to develop. Could use a small button at the side to not crowd the place up.Quote from: wizard69 on July 29, 2020, 02:53:05 amI think a similar dropdown button may be useful to display a more in-depth explanation for those looking for it but not scaring away anyone looking for a brief view. I guess that's one advantage to a digital system compared to a book explanation.Quote from: wizard69 on July 29, 2020, 02:53:05 amI definitely like the idea of breaking it up a bit more logically, I was tempted to split the site into pages but wondered if that would take anything away from the simplicity. It's currently in chapters but not entirely sure how much they break it down and think subsections on pages would be a better way.Definitely like the idea of brief introductions into configs so that people know where they are used which would help them break down complex circuits and know where to use what config.Quote from: RJHayward on July 29, 2020, 02:18:13 amI'd like to add some more digital circuits especially given many of the mentioned components were ones I used at school a few years ago.