plz sir guide to design circuit

Discussion in 'The Projects Forum' started by vead, Nov 28, 2011.

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  1. vead

    Thread Starter Active Member

    Nov 24, 2011
    621
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    hiiiiiiiiiiii dear

    i have been traying to learn circuit designing. i know the component i need but when i draw schematics digram i have no idea. how to calculate
    someone tell me what i do personally to design circuit correctlly load-20kohms, current o/p-2amp,ac 230 to dc12 v
    how we deside power rating of component
    transformer- max/min voltage and current rating
    rectifier-max/min voltage and current rating
    capactior-capactions and working voltage
     
  2. Yako

    New Member

    Nov 24, 2011
    245
    2
    How much you willing to pay?

    We don't do circuit designs for free man.
     
  3. vead

    Thread Starter Active Member

    Nov 24, 2011
    621
    8
    SIR i will not pay anything i am crazy i will try until success
    and thanks for responce
     
  4. wayneh

    Expert

    Sep 9, 2010
    12,107
    3,038
    Most of the advice dispensed here is indeed free, but you'll need to provide much more detail of what you are trying to accomplish. What power supply do you want to use? What schematic are you hoping to follow, what does your design need to do? The more specific you can be, and the more effort you make to help yourself, the better will be the advice you receive here.

    If you're not looking for details, but instead an education, check out the references provided on this site.
     
  5. Yako

    New Member

    Nov 24, 2011
    245
    2
    Advice to kill the time FREE today yes, but tomorrow expensive.

    No designs for free though.
     
  6. bertus

    Administrator

    Apr 5, 2008
    15,647
    2,346
    Hello,

    @Yako,
    We do NOT offer any designs for a PROFIT.
    If you continue to ask miny for advice we are forced to give you an infraction.

    @vead,
    Take a look at the following tutorial:
    http://engknowledge.com/power_supply_design.aspx

    Bertus
     
  7. Yako

    New Member

    Nov 24, 2011
    245
    2
    I'm not engineering stuff on here for free. That's all I know.
     
  8. wayneh

    Expert

    Sep 9, 2010
    12,107
    3,038
    That's perfectly fine. But there's no need to tell the world, just vote with your feet and stay silent if you don't want to contribute. I read far more posts here than I respond to. Many I'm unable to offer anything useful, but many I just don't want to, able or not.

    Telling a new poster that he can't get something here for free just isn't true, and is discouraging to a beginner.
     
  9. Yako

    New Member

    Nov 24, 2011
    245
    2
    Dude, I have contributed so much to the Internet that it isn't funny. So don't put that on me. I have C# programs out there which are free for the taking that took me over two-months to do.

    I started off as a very novice programmer contributing to a site called planet source code in the visual basic section. I had some guys making fun of me at first and copying my abstract with a better way to code it and posting it just to put me down and get under my skin.

    Towards the end, when I dumped VB6 and took up .net programming, one of these guys that I speak of sent me an e-mail saying 'holly crap Trent' I cannot get my head around your Pacman game.

    The laugh is on them.
     
  10. vead

    Thread Starter Active Member

    Nov 24, 2011
    621
    8
    my aim is learn basic concept how can find the value of all component
    here i draw unregulated power supply block digram how can convert it into schematic digram if load 20k ohms at2amp
    230vac(transformer+diode+capactior+load)12dc
    so how can calculate transformer,diode,capactior working voltage
    i post this thread many time but nobody give correct answer plz give correct answer
     
  11. Adjuster

    Well-Known Member

    Dec 26, 2010
    2,147
    300
    What you are asking for is actually a very great deal, to understand a whole subject. This will require considerable study and effort on your part: there are really no short cuts to this.

    Consider what you have requsted - a power supply delivering 2A into 20kohms? This would be running at 40kV output voltage, and 80kW output power, which implies a very big device indeed! Designing such a thing would be a very major project.
     
  12. wayneh

    Expert

    Sep 9, 2010
    12,107
    3,038
    I suspect he means 2A on the high side and 12V on the low side, but the OP needs to make all this clear. I still don't know if he's looking for an education or a schematic.
     
  13. Eric007

    Senior Member

    Aug 5, 2011
    1,044
    33
    You are definately right!!
     
  14. bertus

    Administrator

    Apr 5, 2008
    15,647
    2,346
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