Page 2 of 2 FirstFirst 12
Results 11 to 14 of 14

Thread: Power Sequencers.... User Opinions Wanted

  1. #11
    FLAC
    Join Date
    Apr 2001
    Location
    Portland OR
    Posts
    1,244
    Quote Originally Posted by KyferEz
    Sure, size is important - but 0805 smd resistors and their pads don't take much less room on the top of a PCB than through-hole 1/4 watt resistors. The real reason the uSDC board is so much smaller is because his board has a much lower component count and only 1 relay (they are large compared to any other component). It takes a lot of parts to provide the vast number of features our boards offer.

    Anyone who has concerns or questions about purchasing our product should email us.

    KyferEz
    Somehow it sounds like your bending the truth.

    This is your 1/4 watt resistor vs the resitors the uSDC uses 0603:

    MPEGBOX - Plexiglass Computer
    www.mpegbox.com

  2. #12
    Maximum Bitrate
    Join Date
    Apr 2002
    Location
    Houston, TX
    Posts
    558
    Quote Originally Posted by KyferEz
    Dug, I know this is an older thread, and maybe you went somewhere else or already made a purchase, but I thought I, as the designer of the CarPC Power Controllers would make a few comments:

    Anyone who wants try out our SDCs can do so without fear. We go to great lengths to make all our customers happy. If a customer isn't happy with our product, we will do whatever it takes to make them happy. Period.

    I enjoyed the 80's remark - it made me smile (I'm not being sarcastic). But just FYI for anyone who doesn't know about electronic design, the microcontroller and some other parts used on our boards is not 80's tech at all. The throughhole layout technique was prevelent in the 80's (even possibly 70's), and is still used today in many designs. Sure, size is important - but 0805 smd resistors and their pads don't take much less room on the top of a PCB than through-hole 1/4 watt resistors. The real reason the uSDC board is so much smaller is because his board has a much lower component count and only 1 relay (they are large compared to any other component). It takes a lot of parts to provide the vast number of features our boards offer.

    Anyone who has concerns or questions about purchasing our product should email us.

    KyferEz
    Well Travis (I am assuming you are Travis).... I did order the CarPC Pro and I think it is GREAT.... I am very impressed with the design, construction and function of the device... I concure with your comments about 80's technology.... It is definately not outdated technology..... I am sure the overall size could be slightly reduced with SMD stuff, but not by much and with little benefit that I could see....

    The only SLIGHT grip I have with it is the need to attach to another relay for controlling a DC-DC power supply, being that it is designed mainly for Inverters and this is made clear up front.... So it is a choice I made and acceptted.... but my entire Carputer sounds like a whore on linoleum (click, click, click......) when it starts up... so many relays....

    But this is very minor and does not at all detract from a great product... anybody reading this thread in the same situation I was in when I was looking for a power sequencer... I HIGHLY recommend the CarPC ones.

  3. #13
    Registered User
    Join Date
    May 2003
    Posts
    1,736
    Nothing wrong with tru holes parts really...they do look ugly now though specially the 1/4W resistor mounted vertically. The 1/8W look better when mounted horizontally.

    Some like the pretty look of the SMDs but what difference does it make if the board is slightly bigger or smaller. The size is not really critical here, to within reason of course.

  4. #14
    Variable Bitrate
    Join Date
    Sep 2004
    Posts
    291
    Quote Originally Posted by zootjeff
    Somehow it sounds like your bending the truth.

    This is your 1/4 watt resistor vs the resitors the uSDC uses 0603:

    I am sorry Jeff, my only intent was to compare 0805 smds with 1/4watt through-holes, not to make anyone think you used 0805 smd parts.

    Travis (aka KyferEz)
    TheCarPCStore.com - Power Controllers (SDC), Inverters, Tank Circuit, GPS, OBDII, CarPCs, and more!
    PSU Wattage Calculator
    Electronics Calculators
    Copper Wire Data

Page 2 of 2 FirstFirst 12

Similar Threads

  1. FAQ: Power Supplies Explained (Part 1)
    By Bugbyte in forum The FAQ Emporium
    Replies: 14
    Last Post: 06-10-2007, 08:45 AM
  2. Switching from Car to House power?
    By Deadnick in forum General Hardware Discussion
    Replies: 3
    Last Post: 01-11-2005, 09:09 PM
  3. MII-12000 opinions wanted
    By electron in forum General Hardware Discussion
    Replies: 12
    Last Post: 09-20-2004, 04:40 PM
  4. Wanted: Options and Opinions
    By Rob_Co2 in forum LCD/Display
    Replies: 8
    Last Post: 08-10-2001, 05:51 PM
  5. Power supply (expensive Dc-Dc modules) parts... opinions?
    By Phat Justice in forum General Hardware Discussion
    Replies: 5
    Last Post: 11-27-2000, 03:09 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •