My Math Forum How do I apply math to electronics?

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 September 2nd, 2015, 12:27 AM #41 Senior Member   Joined: Apr 2014 From: UK Posts: 895 Thanks: 328 You need at least a basic understanding of electronics, you just won't need all the complicated maths yet, just basics like ohms law and power calculations (probably Kirchoffs current and voltage laws too). Do you have access to components and tools? Theory is all well and good, but in the end you need to build circuits and see that they work as per your design, because you will get it wrong a few times. I've seen people leave university with a degree in Electronics, yet can't make simple circuits work. You started this thread quite some time ago, how far have you got?
 September 2nd, 2015, 12:31 AM #42 Senior Member   Joined: Apr 2015 From: Los Angeles Posts: 288 Thanks: 7 I got an electronics learning lab from RadioShack. It has a breadboard.
 September 2nd, 2015, 04:49 AM #43 Senior Member   Joined: Apr 2014 From: UK Posts: 895 Thanks: 328 something like: Radioshack - Products Have you made simple circuits like potential (voltage) dividers?
 September 2nd, 2015, 07:58 AM #44 Senior Member   Joined: Apr 2015 From: Los Angeles Posts: 288 Thanks: 7 That's the one. Yes, I have made some of those simple circuits. Do you think I should get a better electronics learning kit than this one?
 September 2nd, 2015, 08:18 AM #45 Senior Member   Joined: Apr 2014 From: UK Posts: 895 Thanks: 328 I can't see in detail what it has, but the important bit is the breadboard. You will need a multimeter. An oscilloscope is extremely useful when you get past the most basic circuits. A signal generator is also useful, but you can build your own When you built simple circuits, were you happy that you fully understood each component, can you give an example? I'm trying to gauge where you're at.
 September 2nd, 2015, 11:44 AM #46 Senior Member   Joined: Apr 2015 From: Los Angeles Posts: 288 Thanks: 7 O-scope and multimeter is too much money for me. That's the thing I follow the instruction, build the circuits and they work, but they don't stick in my mind. I want to build circuits that make me feel like Batman.
 September 3rd, 2015, 12:14 AM #47 Senior Member   Joined: Apr 2015 From: Los Angeles Posts: 288 Thanks: 7 I want to be an electrical engineer.
 September 3rd, 2015, 01:03 AM #48 Senior Member   Joined: Apr 2014 From: UK Posts: 895 Thanks: 328 Most of us want to feel like batman (some days I actually manage it!) An Electrical engineer is something different, you don't need much electronics for that (diodes and resistors are about the limit for electrical use) For electronics, once you design anything that uses non DC signals, you'll need an O-scope. A multimeter is an absolute minimum. Even DC circuits sometimes require an O-scope when they misbehave. That Radioschack kit looks like it has a meter built in, you can turn this into a basic measuring device, not quite a multimeter, but it will do at a push. It'll be good enough for non precision work.
 September 3rd, 2015, 12:35 PM #49 Senior Member   Joined: Apr 2015 From: Los Angeles Posts: 288 Thanks: 7 I want to use math to calculate the values and math to graph these signals and functions. I want to go old school.
 September 4th, 2015, 02:33 AM #50 Senior Member   Joined: Apr 2014 From: UK Posts: 895 Thanks: 328 For calculating values and plotting functions, I usually put the component equations into Excel and let that do the hard work for me. I still have to do the maths (algebra) to get the formulae for Excel, but it lets me try a range of options without having to tap the numbers into a calculator every time. Obviously graphing functions and signals is pretty easy with this method too. But that's just me, most people use some form of SPICE software, I have LTSpice which I sometimes use, and it's free. Linear Technology - Design Simulation and Device Models It is biased to Linears' products, but it is still a good tool.

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