1. Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
    Dismiss Notice

drop outlet voltage

Discussion in 'High Voltage' started by rudster, Jun 4, 2010.

  1. rudster

    rudster New Member

    Joined:
    Apr 8, 2010
    Messages:
    12
    Likes:
    0
  2. Sceadwian

    Sceadwian Banned

    Joined:
    Oct 27, 2006
    Messages:
    14,047
    Likes:
    141
    Location:
    Rochester, US
    With a 36 volt power supply meant to run off mains power.
     
  3. HarveyH42

    HarveyH42 Banned

    Joined:
    Feb 25, 2006
    Messages:
    3,442
    Likes:
    18
    Location:
    Not Here
    Maybe a little clear description of your goal. You linked to a basic three conductor power cord, intended to replace a damaged tool cord (my puppy went through a couple, but either spliced, or replaced with one I saved). He stopped after messing up an extension cord, that I had left plugged in, oops...
     
  4. dave

    Dave New Member

    Joined:
    Jan 12, 1997
    Messages:
    -
    Likes:
    0


     
  5. rudster

    rudster New Member

    Joined:
    Apr 8, 2010
    Messages:
    12
    Likes:
    0

    i want to make kind of Christmas lights. i have a series and parallel leds, 172 of them, which requires 4 9V batteries to power it up. Instead of wasting batteries i just want to use an outlet.
    So like christmas lights. The plug i have is already polarized. and have a power supply is bulky.
     
  6. Sceadwian

    Sceadwian Banned

    Joined:
    Oct 27, 2006
    Messages:
    14,047
    Likes:
    141
    Location:
    Rochester, US
    As I said already just buy a 36 volt power supply...
     
  7. rudster

    rudster New Member

    Joined:
    Apr 8, 2010
    Messages:
    12
    Likes:
    0
    i know, i just dont understand why i need a power supply.
    chistmas lights dont have them, phone chargers have that outlet to usb convertor.
    how does all that work?
     
  8. Sceadwian

    Sceadwian Banned

    Joined:
    Oct 27, 2006
    Messages:
    14,047
    Likes:
    141
    Location:
    Rochester, US
    Because most Christmas lights aren't LED's, the ones that actually are LED based either have a power supply or have the number of LEDS in series/parallel carefully valued for the AC voltage, yours were designed to run off a fixed DC voltage, so that's what you have to provide it.
     
  9. rudster

    rudster New Member

    Joined:
    Apr 8, 2010
    Messages:
    12
    Likes:
    0
    ohh, the cord i have is already polarized. or does that not matter?
     
  10. Sceadwian

    Sceadwian Banned

    Joined:
    Oct 27, 2006
    Messages:
    14,047
    Likes:
    141
    Location:
    Rochester, US
    That has nothing whatsoever to do with it rudster, all that means is that one of the prongs is larger than the other so it can only be plugged into an outlet in one direction, it's a basic saftey feature on many electrical products.
    All the cable you have can do is supply the wall outlet power (which we don't know because we don't know your location) from one spot to another.
     

Share This Page