Author Topic: VS-GP250SA60S IGBT suitability - no flywheel diode  (Read 1107 times)

Offline Unrealeous

  • High Voltage Enthusiast
  • *
  • Posts: 13
  • Karma: +1/-0
    • View Profile
VS-GP250SA60S IGBT suitability - no flywheel diode
« on: February 13, 2024, 09:57:12 AM »
I've just come across some potentially cheap 2nd hand IGBT's for a small/medium DRSST build, but noticed that they don't have a flywheel diode.

Is this a deal breaker - or can I just add external diodes across the collector/emitter junction.

Here's a link to the datasheet https://datasheetspdf.com/pdf-file/1314335/Vishay/VS-GP250SA60S/1

« Last Edit: February 13, 2024, 11:10:42 AM by Keybored »
With enough voltage, everything becomes a conductor.  With enough current, everything becomes a fuse.

Offline Unrealeous

  • High Voltage Enthusiast
  • *
  • Posts: 13
  • Karma: +1/-0
    • View Profile
Re: VS-GP250SA60S IGBT suitability - no flywheel diode
« Reply #1 on: February 14, 2024, 03:02:16 AM »
I'm not sure if the lack of response means that my question is a dumb one or if people generally don't have an opinion.

So, in the interests of science and the fact that I can't resist a bargain (I realise why those IGBt's are going cheap - they are now discontinued),  I've decided I'm going to add some some of these diodes and give it a go.   https://www.infineon.com/dgdl/IDW100E60_V2_1.pdf?folderId=db3a304412b407950112b408e8c90004&fileId=db3a304412b407950112b438da286bba

600V, 100A with 400A pulse...

I've built a few SSTC, this is my first attempt at a DRSSTC, so now doubt I'll blow a few things things up along the way.  Will report progress as it happens.
With enough voltage, everything becomes a conductor.  With enough current, everything becomes a fuse.

Offline AstRii

  • High Voltage Engineer
  • ****
  • Posts: 260
  • Karma: +9/-0
  • Czech Technical University in Prague
    • View Profile
    • UHVlab - Tesla Coils | High Voltage | Education
Re: VS-GP250SA60S IGBT suitability - no flywheel diode
« Reply #2 on: February 14, 2024, 04:34:14 AM »
Quote
I'm not sure if the lack of response means that my question is a dumb one or if people generally don't have an opinion.

I think there are none dumb question and if there were, this would surely not be one of them. Sometimes you just need to give it a bit more time.

Quote
Is this a deal breaker

It is a huge deal breaker, those diodes carry the primary energy back to bus capacitors during ring-down. They basically act as a full bridge rectifier (assuming full bridge of transistors).

Quote
or can I just add external diodes across the collector/emitter junction

I've seen people doing this in SSTCs, however I see no reason why it should not work for DRSSTC as well. Just make sure to place the diodes as close as possible to the IGBT (ideally directly on the terminals of the IGBT)
Bc. Marek Novotny
Czech Republic, Czech Technical University in Prague
www.uhvlab.org

Offline Unrealeous

  • High Voltage Enthusiast
  • *
  • Posts: 13
  • Karma: +1/-0
    • View Profile
Re: VS-GP250SA60S IGBT suitability - no flywheel diode
« Reply #3 on: February 18, 2024, 03:41:12 AM »
Bridge is built.  Diodes are directly on the terminals of the IGBT as recommended.
« Last Edit: February 18, 2024, 03:58:26 AM by Keybored »
With enough voltage, everything becomes a conductor.  With enough current, everything becomes a fuse.

Offline Hydron

  • Administrator
  • High Voltage Engineer
  • *****
  • Posts: 487
  • Karma: +25/-0
    • View Profile
Re: VS-GP250SA60S IGBT suitability - no flywheel diode
« Reply #4 on: February 18, 2024, 11:43:44 AM »
I also don't see why it wouldn't work, though I'd be very careful about using pulse skipping or any other modulation that puts extra stress on the diodes (beyond the rundown phase they're going to be active during regardless).

Offline davekni

  • Executive Board Member
  • *******
  • Posts: 2778
  • Karma: +133/-1
  • Physicist, engineer (electronic), and hobbiest
    • View Profile
Re: VS-GP250SA60S IGBT suitability - no flywheel diode
« Reply #5 on: February 18, 2024, 10:32:36 PM »
Quote
I also don't see why it wouldn't work, though I'd be very careful about using pulse skipping or any other modulation that puts extra stress on the diodes (beyond the rundown phase they're going to be active during regardless).
I certainly agree with avoiding pulse skipping etc.  Even in normal operation, be careful of high enable pulse frequency.  Diode power capability is <4W average without heatsinking.  Depending on primary current at end of enable pulse, ring-down duration, and enable pulse frequency, wouldn't be too hard to exceed 4W.
David Knierim

High Voltage Forum

Re: VS-GP250SA60S IGBT suitability - no flywheel diode
« Reply #5 on: February 18, 2024, 10:32:36 PM »

 


* Recent Topics and Posts

post Re: First DRSSTC SKM100
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
Today at 05:58:27 AM
post Tesla coil UV eye protection?
[General Chat]
Michelle_
Today at 05:17:22 AM
post Re: Tenebrescent Potassium Iodide
[Solid State Tesla Coils (SSTC)]
alan sailer
Today at 12:39:59 AM
post Re: First DRSSTC SKM100
[Dual Resonant Solid State Tesla coils (DRSSTC)]
flyingperson23
April 23, 2024, 11:07:41 PM
post Re: First DRSSTC SKM100
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Saattvik24
April 23, 2024, 10:57:39 PM
post Re: Plasma Torid - Class E Self Resonant Dual/Stereo - Plasma Torid Build
[Dual Resonant Solid State Tesla coils (DRSSTC)]
OmGigaTron
April 23, 2024, 09:33:49 PM
post Re: Tenebrescent Potassium Iodide
[Solid State Tesla Coils (SSTC)]
haversin
April 23, 2024, 06:00:42 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 23, 2024, 03:50:49 AM
post Re: Tenebrescent Potassium Iodide
[Solid State Tesla Coils (SSTC)]
alan sailer
April 23, 2024, 03:13:31 AM
post Re: Tenebrescent Potassium Iodide
[Solid State Tesla Coils (SSTC)]
haversin
April 23, 2024, 12:50:40 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 22, 2024, 11:21:06 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 22, 2024, 08:11:00 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 22, 2024, 06:15:30 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
NyaaX_X
April 22, 2024, 05:52:50 PM
post Tenebrescent Potassium Iodide
[Solid State Tesla Coils (SSTC)]
alan sailer
April 22, 2024, 05:52:13 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 22, 2024, 04:31:52 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
NyaaX_X
April 22, 2024, 04:05:34 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
markus
April 22, 2024, 01:02:30 PM
post Re: 100kHz CM300 gate resistor choice
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Benjamin Lockhart
April 22, 2024, 06:32:35 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 22, 2024, 06:24:10 AM
post M2000NM1 toroid for gdt tesla coil
[General Chat]
thedark
April 22, 2024, 05:13:15 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 22, 2024, 02:25:29 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
alan sailer
April 22, 2024, 02:09:18 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 22, 2024, 12:14:21 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 21, 2024, 09:47:15 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
MRMILSTAR
April 21, 2024, 08:34:02 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 21, 2024, 06:09:57 PM
post Re: 100kHz CM300 gate resistor choice
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
April 21, 2024, 06:21:54 AM
post Re: Insulate the secondary of the Tesla coil with a PET plastic bottle
[General Chat]
Michelle_
April 21, 2024, 06:18:30 AM
post Re: Insulate the secondary of the Tesla coil with a PET plastic bottle
[General Chat]
davekni
April 21, 2024, 06:12:31 AM
post Re: Insulate the secondary of the Tesla coil with a PET plastic bottle
[General Chat]
MRMILSTAR
April 21, 2024, 05:19:55 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 21, 2024, 02:29:17 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
alan sailer
April 21, 2024, 01:28:59 AM
post Insulate the secondary of the Tesla coil with a PET plastic bottle
[General Chat]
thedark
April 21, 2024, 01:19:44 AM
post Re: 100kHz CM300 gate resistor choice
[Dual Resonant Solid State Tesla coils (DRSSTC)]
flyingperson23
April 21, 2024, 12:55:25 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 20, 2024, 11:25:32 PM
post Re: 100kHz CM300 gate resistor choice
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Benjamin Lockhart
April 20, 2024, 10:28:26 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
davekni
April 20, 2024, 10:23:28 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 20, 2024, 10:06:44 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
davekni
April 20, 2024, 09:21:55 PM
post Re: 100kHz CM300 gate resistor choice
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
April 20, 2024, 09:16:14 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
MRMILSTAR
April 20, 2024, 08:58:40 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 20, 2024, 06:18:26 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 20, 2024, 06:15:26 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
MRMILSTAR
April 20, 2024, 03:45:43 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Benjamin Lockhart
April 20, 2024, 06:33:37 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 20, 2024, 05:45:04 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Benjamin Lockhart
April 20, 2024, 05:34:16 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 20, 2024, 04:50:57 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Benjamin Lockhart
April 20, 2024, 04:03:55 AM
post Re: 100kHz CM300 gate resistor choice
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Benjamin Lockhart
April 20, 2024, 02:35:56 AM
post Re: How to get a GE Yokogawa AB40 Sync Scope to rotate without a powerplant.
[Laboratories, Equipment and Tools]
Bobakman
April 19, 2024, 09:37:52 PM
post Re: How to get a GE Yokogawa AB40 Sync Scope to rotate without a powerplant.
[Laboratories, Equipment and Tools]
klugesmith
April 19, 2024, 09:20:10 PM
post Re: Next Gen DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
April 19, 2024, 07:22:26 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 19, 2024, 04:46:36 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
alan sailer
April 19, 2024, 03:49:28 PM
post Re: How to get a GE Yokogawa AB40 Sync Scope to rotate without a powerplant.
[Laboratories, Equipment and Tools]
Bobakman
April 19, 2024, 01:53:57 PM
post Re: How to get a GE Yokogawa AB40 Sync Scope to rotate without a powerplant.
[Laboratories, Equipment and Tools]
MRMILSTAR
April 19, 2024, 05:24:19 AM
post Re: Difference between these transformers
[Transformer (Ferrite Core)]
Tesla Junior
April 19, 2024, 04:24:09 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 19, 2024, 04:20:35 AM
post Re: How to get a GE Yokogawa AB40 Sync Scope to rotate without a powerplant.
[Laboratories, Equipment and Tools]
Bobakman
April 19, 2024, 04:05:28 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
alan sailer
April 19, 2024, 04:03:54 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 19, 2024, 03:19:19 AM
post Re: IKY150N65EH7, is it good for DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
April 19, 2024, 03:09:29 AM
post Re: IKY150N65EH7, is it good for DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
unrealcrafter2
April 19, 2024, 01:47:37 AM
post Re: How to get a GE Yokogawa AB40 Sync Scope to rotate without a powerplant.
[Laboratories, Equipment and Tools]
Bobakman
April 19, 2024, 12:19:21 AM
post Re: How to get a GE Yokogawa AB40 Sync Scope to rotate without a powerplant.
[Laboratories, Equipment and Tools]
klugesmith
April 18, 2024, 11:33:01 PM
post Re: How to get a GE Yokogawa AB40 Sync Scope to rotate without a powerplant.
[Laboratories, Equipment and Tools]
Bobakman
April 18, 2024, 11:15:15 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
davekni
April 18, 2024, 10:59:36 PM
post Re: What actually kills MOSFETs?
[Beginners]
unrealcrafter2
April 18, 2024, 10:03:48 PM
post Re: How to get a GE Yokogawa AB40 Sync Scope to rotate without a powerplant.
[Laboratories, Equipment and Tools]
klugesmith
April 18, 2024, 09:53:25 PM
post Re: Welcome new members, come say hello and tell a little about yourself :)
[General Chat]
unrealcrafter2
April 18, 2024, 09:50:09 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 18, 2024, 09:15:55 PM
post Re: 100kHz CM300 gate resistor choice
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
April 18, 2024, 08:50:49 PM
post Re: 100kHz CM300 gate resistor choice
[Dual Resonant Solid State Tesla coils (DRSSTC)]
unrealcrafter2
April 18, 2024, 08:11:27 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
davekni
April 18, 2024, 07:28:05 PM
post Re: How to get a GE Yokogawa AB40 Sync Scope to rotate without a powerplant.
[Laboratories, Equipment and Tools]
Bobakman
April 18, 2024, 06:30:30 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 18, 2024, 06:03:57 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 18, 2024, 05:26:13 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
NyaaX_X
April 18, 2024, 04:03:38 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 18, 2024, 02:56:40 PM
post Re: DIY induction guns? (warning:long)
[Induction Launchers, Coil Guns and Rails guns]
Benbmw
April 18, 2024, 06:17:15 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 18, 2024, 05:46:07 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
MRMILSTAR
April 18, 2024, 05:18:31 AM
post Re: IKY150N65EH7, is it good for DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
April 18, 2024, 04:34:52 AM
post Re: How to get a GE Yokogawa AB40 Sync Scope to rotate without a powerplant.
[Laboratories, Equipment and Tools]
klugesmith
April 18, 2024, 04:11:53 AM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 18, 2024, 04:02:44 AM
post Re: 100kHz CM300 gate resistor choice
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
April 18, 2024, 03:35:52 AM
post Re: How to get a GE Yokogawa AB40 Sync Scope to rotate without a powerplant.
[Laboratories, Equipment and Tools]
MRMILSTAR
April 17, 2024, 11:54:05 PM
post 100kHz CM300 gate resistor choice
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Benjamin Lockhart
April 17, 2024, 11:37:16 PM
post Re: Has anyone tried to build a TMT (extra coil) Tesla coil?
[General Chat]
Michelle_
April 17, 2024, 02:29:30 AM
post Re: Has anyone tried to build a TMT (extra coil) Tesla coil?
[General Chat]
MRMILSTAR
April 16, 2024, 11:56:12 PM
post Re: How to get a GE Yokogawa AB40 Sync Scope to rotate without a powerplant.
[Laboratories, Equipment and Tools]
klugesmith
April 16, 2024, 11:46:57 PM
post Re: How to get a GE Yokogawa AB40 Sync Scope to rotate without a powerplant.
[Laboratories, Equipment and Tools]
Bobakman
April 16, 2024, 10:40:11 PM
post Has anyone tried to build a TMT (extra coil) Tesla coil?
[General Chat]
Michelle_
April 16, 2024, 09:21:39 PM
post Re: Medium Drsstc question
[Dual Resonant Solid State Tesla coils (DRSSTC)]
flyingperson23
April 16, 2024, 08:04:16 PM
post Re: First DRSSTC SKM100
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Benjamin Lockhart
April 16, 2024, 06:48:05 PM
post Re: Game changing tesla coil secondary winding suggestions
[General Chat]
Michelle_
April 16, 2024, 06:18:40 PM
post Re: Small-ish 3D printed SGTC via cheap ZVS flyback build, humbly asking a couple ?s
[Spark Gap Tesla Coils (SGTC)]
Michelle_
April 16, 2024, 06:14:53 PM
post Re: 3D printed mini-slayer: world's weakest tesla coil
[Solid State Tesla Coils (SSTC)]
unrealcrafter2
April 16, 2024, 05:44:44 PM

Sitemap 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 
SimplePortal 2.3.6 © 2008-2014, SimplePortal