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ic inner circuit hand book
Thanks a lot aryajur for answering.
But I have a doubt:
OK, this concept of "neglegible" base currents is always used in electronics theory to analyze easier the transistors but:
Even though base current in Q1 is insignificant, there will be a significant...
ic555
Hi again fellows.
Because the first project I built myself was using an IC 555, and I like to understand “mathematically” everything I use in a circuit, I started now to analyze mathematically its inner circuit.
So I started to check again my Donald Neaman’s electronics analysis text...
make stator
Thanks A LOT, hock, for taking the time in helping me further with my doubts.
It's a great aid what you tell me here.
About what you said:
:D Thanks for putting it clear. I needed to know if I was "expecting too much".
I shouldn't be asking for more help, but is about your...
Thanks a lot, Funster, for your reply.
It'll help me very much when studying and searching for inductance.
But besides that, if I wanted to buy an already measured Magnetic Core to build a Transformer (120V to 12V for example), where can I find tested cores with their measures in DATASHEETS (as...
Hello, folks!
I'll appreciate if you can advice me of some website (or websites) that sell magnetic cores.
It's just that I want to make my own designs of "transformers", to apply the theory I've learned in college. And for doing so I need magnetic cores that have their specifications (for...
make a stator
Hi there, fellows. Thanks for replying.
VVV said:
That's right, it has its complications. I've read about building this kind of DC brushless motors, and about the extra work it has to be made with sensors and other things to control the magnetism direction in order to move...
how to build a stator
Thanks for the FAST answer to my topic, Hock.
What you tell me about using an induction motor, I supose is due to the fact that magnets only have ONE LEVEL of magnetism, while the induction motor will have LEVELS of magnetism due to the spinning speed and magnetic field...
build dc motor
Hello, folks.
Here I am again with another question.
I've read about new DC motors for Radio-control cars. They are Brushless, and so more efficient. How "Brushless"? Well, instead of current flowing through windings in the rotor (needing the Brushes to feed with dc current the...
Thanks IanP fror the additional information.
I really want to learn all important matters about charging batteries.
Maybe it isn't as difficult or complicated as I thought, but I want to be sure.
I don't know if I'm right, but I always thought the "battery charge" is similar to "charging a...
Re: Are there a lot of job opportunities in electronics in U
Well, at least I knew that that in Europe and Asia are more chances with scholarships, because in my own college they have plans for scholarships for studying in Germany and Japan.
But I didn't know that there were also more chances...
Re: Are there a lot of job opportunities in electronics in U
Hello.
Thanks a lot for answering so soon.
Indeed I do realize that it's not easy to get a job, nor in my country nor in others.
It's just that knowing that in USA there are MORE chances of finding a job in almost any area than in...
Thanks IanP for the help. :D
But just a few questions:
1. About the circuit of the page: https://www.aaroncake.net/circuits/charger1.htm
There it says that:
How does the circuit lowers the voltage, or current ???
2. Can I use this circuit with any other type of battery (not only cars...
Hello again, fellows.
I need your help this time in finding on internet information about "Charging batteries" process.
I want to know what specific issues are related to this matter. What is needed to charge a battery. Does it need a regular and accurate charging period, etc...
If it's...
Hello, fellows.
I'm from Panama (in Latin America), and here we don't have too much of electronics companies, because this is not an Industrial country. I'm graduated in Electrical-Electronics Engineering, and I like the "Electronics" part, but unfortunately, we lack of that area, as I said...
Re: Calculations for Power Supply filters, and some question
Thank you very much Engineer_Bob, for the amount of information.
I haven't finished reading all of it, yet.
But as far as I've read, I see that Filters' theory always refers to Voltage, and doesn't talk to much about Current...
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