Circuits
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You are currently reading a thread in /g/ - Technology
You are currently reading a thread in /g/ - Technology
Been playing with some circuits, thinking of making a wall charger for a phone, tell me if you think it will work. I haven't put any LED's or switches yet, this is just the prototype, made it here: http://www.falstad.com/circuit/circuitjs.html
>>53420954
>120V 60Hz
>not 220V 50Hz
>>53420954
That zener diode will fucking explode.
>>53420954
>>>/diy/
They have the /ohm/ general for projects like this, /g/ is for cellphones and OSes only :(
>>53422029
This would explode?
http://www.onsemi.com/PowerSolutions/product.do?id=1N5372B
>>53423072
>Vz_max: 10.5V
Yes
>>53423175
1N5373B Vz max @ 71.4
Seems like a waste of electricity. You realize these sell these things for like $20 right?
>>53420954
How the FUCK did you figure that out?
>>53423265
>how the FUCK did you figure out a basic rectifier circuit
Maybe by taking a freshman level circuits class or browsing wikipedia for 3 minutes
You'll be pissing away money through your electricity bill.
>>53423265
Check out that site out, and >>53423309
its right, except the wiki part, can't find shit on the wiki, I just use my books, a lot easier and faster to get what your looking for
>>53422029
>>53421467
>>53423203
Here's an update, thanks anon's for the info
What is the objective here? Are you trying to learn how circuits work or are you actually planning on using this thing and trying to diy it to save money? If you're aiming for the latter you'll be better off buying a decent one from the store.
>>53423669
>except the wiki part, can't find shit on the wiki
Really? Wikipedia shows the exact same damn circuit you're making
>>53424601
Yeah, but if my books explains it better and I know where to find it, why look for it on the wiki? and thats not the same circuit, its just a common rectifier, if I built that same exact circuit the V's and A's across the load would be why to high. So I made some edits with my basic knowledge of AC/DC circuits. Of course I can find a rectifier on wiki, if I google rectifier I get the diagram.
>>53423821
Yes, Im actually making it but not until I test in multisim, then I'll build it and test it for about a day and then use it, Ill be happy if it works being it's my first build
Also Im not making this to save money, I have a 5A turbo charger for my droid, this thing would be slower, Im just trying to make something so I get some knowledge soldering/designing circuits, which I can do at my school for free.
Well, I got one of my MFB bandpass filters for my 10-band spectrum analyzer working. Neat shit.
Filter topologies are pretty fucking complex shit.
>>53425031
Neat-o, I need some equipment but Im not sure what that is, I've just got done with AC analysis of BJT's, so Im not that familiar with op amps, but I've been studying them for fun (not that much fun)
>>53425148
It's really just an active bandpass filter. Does the same kind of shit as any passive RC, RL, or LC filter but generally with steeper rolloff (passives are -6dB/decade and actives are -12dB/decade and up, more when cascaded obviously). There are other qualities as well that might make them better than passive filters depending on the application. It's not a subject I'm super well versed in since I've had no formal study of linear time invariant systems or filter topologies and their transfer functions and stuff but I had to learn a bit for this project.
op-amps aren't too hard to understand. Actually easier than analysis of BJTs/FETs.
>>53423744
Are you sure you want to output 15 volts to a micro USB connector?
>>53420954
>charging circuit
I'm guessing you failed electronic circuits 101.
