Diode Recommendation

Discussion in 'General Electronics Chat' started by crazyengineer, Jun 8, 2011.

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  1. crazyengineer

    Thread Starter Member

    Dec 29, 2010
    156
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    Hello Everyone,

    I'm getting ready to do my first high voltage electricity experiment. All I want to do is get the voltage from a household wall outlet (I'm assuming 120v, current I don't know), feed the voltage to a strandard full wave rectification circuit and get a high dc voltage from it. The problem is I have no idea what type of diodes I should get. Does anyone have any recommendations?
     
  2. tom66

    Senior Member

    May 9, 2009
    2,613
    214
    What is the maximum voltage the diodes need to withstand?

    For mains applications 1N4005 - 1N4007 are suitable, with PIV's ranging from 600V to 1000V. 1N4004 is okay for 115V mains, but pushing it for 230V, as that is 325Vpk and 1N4001's are only rated to 400V.
     
  3. magnet18

    Senior Member

    Dec 22, 2010
    1,232
    124
    Just go with 1n4007, they can handle just about anything.
    If you need faster switching, go with uf4007, high voltage and ultra fast recovery, and they're a dime a dozen.

    Also, mains rectification is not allowed on here according to the TOS, so this will probably be closed shortly.
     
  4. soundman

    New Member

    Dec 27, 2010
    13
    1
    I think there is a restriction on questions concerning transformerless power supplies so your question may disappear on you. Look at the posting in this section by "Been There" regarding automotive modifications.
     
  5. crazyengineer

    Thread Starter Member

    Dec 29, 2010
    156
    2
    opps! Sorry :(
     
  6. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Amateurs/hobbyists should not experiment with direct mains power, as the likelihood of being the guest of honor at a funeral is quite high.

    Always use an isolation transformer that is protected by a fuse, as that will limit the hazard at least somewhat.

    With high voltage, even a few milliamperes through the torso can cause fatalities.

    If you keep your experiments below 50v, your likelihood of survival increases dramatically.
     
  7. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    It's the Terms of Service that won't let us discuss this - it's just too dangerous.
     
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