Shop OBEX P1 Docs P2 Docs Learn Events
Running BOE off of PC power supply — Parallax Forums

Running BOE off of PC power supply

nikanika Posts: 11
edited 2006-09-21 20:09 in BASIC Stamp
What are your thoughts on running the BOE off of a PC power supply molex connector(12v). Can the onboard voltage regulator handle this? Thanks, nik

Comments

  • aalegadoaalegado Posts: 66
    edited 2006-09-21 04:29
    That's not a problem...it's within specification. I run my PDB and BOE off of a ATX power supply's 12V rail.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    I wouldn't connect that if I were you...

    Vive Le Tour!
    July 1 - July 23
  • willthiswork89willthiswork89 Posts: 359
    edited 2006-09-21 11:19
    just to be safe i would get a 5 volt regulator the LM7805 from Radioshack and run the supply through that first. if anything DOES fry i want it to be the 1.79 Regulator instead of my 80 dollar Boe

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    -Learn somthing about everything, and Everthing about somthing-
  • allanlane5allanlane5 Posts: 3,815
    edited 2006-09-21 14:26
    The BOE already HAS an 'on-board' voltage regulator, the 3840-5. It's hard to fry, and simple to replace if you know how to solder.
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2006-09-21 20:09
    The problem with computer power supplies is that many are extremely noisy.· This can result in some circuits and/or programs exhibiting weird symptoms which you may not attribute to the power supply, but could very well be related.· This can cause countless hours of hair pulling.·

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Chris Savage
    Parallax Tech Support
Sign In or Register to comment.