Announcement

Collapse
No announcement yet.

Diversion 180 - IGBT catastrophic failure

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • #31
    Oh no! What's wrong with the multimatic 200? I kind of like that machine. Had it on my want list.

    Comment


    • #32
      Originally posted by ryanjones2150 View Post
      Oh no! What's wrong with the multimatic 200? I kind of like that machine. Had it on my want list.
      20% and 30% duty cycles on the higher ends...Bob
      Bob Wright

      Comment


      • #33
        That's one reason the Dynasty 210 looks so promising. Much higher duty cycle, even when rated as Miller does.

        www.facebook.com/outbackaluminumwelding
        Miller Dynasty 700...OH YEA BABY!!
        MM 350P...PULSE SPRAYIN' MONSTER
        Miller Dynasty 280 with AC independent expansion card
        Miller Dynasty 200 DX "Blue Lightning"

        Miller Bobcat 225 NT (what I began my present Biz with!)
        Miller 30-A Spoolgun
        Miller WC-115-A
        Miller Spectrum 300
        Miller 225 Thunderbolt (my first machine bought new 1980)
        Miller Digital Elite Titanium 9400

        Comment


        • #34
          Originally posted by chuckies76ta View Post
          If any of you have a PC-1 board that has failed, can you private message me. Thank you
          Sheesh

          www.facebook.com/outbackaluminumwelding
          Miller Dynasty 700...OH YEA BABY!!
          MM 350P...PULSE SPRAYIN' MONSTER
          Miller Dynasty 280 with AC independent expansion card
          Miller Dynasty 200 DX "Blue Lightning"

          Miller Bobcat 225 NT (what I began my present Biz with!)
          Miller 30-A Spoolgun
          Miller WC-115-A
          Miller Spectrum 300
          Miller 225 Thunderbolt (my first machine bought new 1980)
          Miller Digital Elite Titanium 9400

          Comment


          • #35









            Machines of this class all deliver right around the same duty cycle performance --- here's the Lincoln SW 200 TIG data. I use my 180 "light" (don't have a water cooler hooked up to push duty cycles) and the thing just works, pretty much does all the "light" work I ask of it --- outstanding welder in its price range.
            INPUT POWER
            • 120/230/1/50/60
            RATED OUTPUT
            • 120V:
            • TIG: 125A/25% (AC TIG 110A/25%)
            • TIG: 100A/40%
            • TIG: 85A/60%
            • Stick: 75A/20%
            • Stick: 65A/60%
            • 230V:
            • TIG: 200A/25%
            • TIG: 160A/40%
            • TIG: 130A/60%
            • Stick: 170A/20%
            • Stick: 100A/60%
            INPUT CURRENT
            • 120V:
            • TIG: 25% Duty Cycle 21A
            • TIG: 40% Duty Cycle 17A
            • TIG: 60% Duty Cycle 14A
            • Stick: 20% Duty Cycle 19A
            • Stick: 60% Duty Cycle 16A
            • 230V:
            • TIG: 25% Duty Cycle 22A
            • TIG: 40% Duty Cycle 17A
            • TIG: 60% Duty Cycle 13A
            OUTPUT RANGE
            • 120V:
            • TIG: 10-125A
            • Stick: 10-90A
            • 230V:
            • TIG: 10-200A
            • Stick: 10-170A
            ESAB TIG 252 with Miller CoolMate
            Spectrum 875
            Diversion 180
            Oxy-A (Harris, ESAB, Ox Weld)
            Miller 252
            MM 211
            CST 280
            Trailblazer - Kubota

            http://www.blackdiamondblooms.com/

            Comment


            • #36
              I know this is an old thread, but this link is from one of our National Labs we all pay for.

              It's a presentation from GE/MITSUBISHI about IGBTs and their reliability issues.

              Comment


              • #37
                Originally posted by Toasty View Post
                I know this is an old thread, but this link is from one of our National Labs we all pay for.

                It's a presentation from GE/MITSUBISHI about IGBTs and their reliability issues.
                Link???

                Comment


                • #38
                  The "Missing Link" perhaps.

                  ---Meltedmetal
                  ---Meltedmetal

                  Comment


                  • #39
                    Hope he posts it--I'm anxious to read it.

                    Comment


                    • #40
                      OOPS! Also google "Drop in SiC replacement for IGBT"



                      https://www.google.com/url?sa=t&sour...acwa0bPscvh5cp

                      Comment


                      • #41
                        Originally posted by Toasty View Post
                        OOPS! Also google "Drop in SiC replacement for IGBT"



                        https://www.google.com/url?sa=t&sour...acwa0bPscvh5cp
                        Pretty hard to make heads or tails out of that dog's breakfast...

                        Comment


                        • #42
                          Here's the best quote I could find that tells you why these materials are important:

                          "There are multiple reasons for the rising popularity of SiC and GaN: They operate at higher voltages and temperatures, are more rugged, have longer lifetimes, and switch much faster than conventional semiconductor devices."

                          This stuff is all here now, but isn't in current products. In fact, some of it is barely out of the laboratory. Manufacturing these materials into transistors cost-effectively seems to be moving along slowly. Until then they will be pricey.

                          Comment


                          • #43
                            Yes, without the presenter's narrative for the slide show, that is pretty much a generic reliability presentation outline. Not much to see there. IGBT technology has come a long way, but they are still high impedance devices with sensitivity to static discharge and cosmic rays. I would love to see data on IGBT failures related to the 11-year sunspot cycle; lots of cosmic rays at the peak, and I suspect a lot of failed IGBTs. Not the serious problem it was originally, but I suspect it is still an issue. I wonder what the words were that went with the "<1 FIT" line. FIT is reliability engineer talk for Failures In Time. 1 FIT = one failure in a billion hours of operation. That's something like 114,000 years. Really? They're saying these devices are virtually "failproof"? I can't imagine they were saying that, and if they were, I'm not believing it.

                            The silicon carbide FET (field-effect transistor) drop-in replacement for IGBTs is interesting--anxious to see if welders evolve from IGBT to the SiC technology as it matures in the high voltage/high current realm. FETs used to be kind of failure prone, as IGBTs are somewhat today. However, FETs have come a long way, and IGBTs may do the same.They are certainly far better than when they first came out.. Or, they may be eclipsed by new FETs.
                            Last edited by Aeronca41; 07-26-2019, 04:08 PM.

                            Comment


                            • #44
                              Originally posted by Helios View Post

                              Pretty hard to make heads or tails out of that dog's breakfast...
                              All i know is TJ Max is a local store for me...Bob
                              Bob Wright

                              Comment


                              • #45
                                Originally posted by aametalmaster View Post

                                All i know is TJ Max is a local store for me...Bob
                                ...and maybe that's all we need to know for now!

                                Comment

                                Working...
                                X