Author Topic: Next Gen DRSSTC  (Read 53193 times)

Offline Hydron

  • Administrator
  • High Voltage Engineer
  • *****
  • Posts: 440
  • Karma: +18/-0
    • View Profile
Re: Next Gen DRSSTC
« Reply #160 on: March 16, 2022, 12:11:43 PM »
Got a UD3 all boxed up ready to go in my suitcase, will be re-united with my big coil in NZ next week :)




Will report back on how it goes - last time I used it with this coil was 2019 and it was a bit of a rush and without any case etc, plus lead-time was broken at that point (I still can't quite figure out how that part works other than the initial value offsetting the expected first period loaded into the PWM generator).

Am having to use serial-over-fibre control at this point as I don't have a fibrenet board built into this - it does actually have an ESP32 module inside (and an RF window on the end-plate for it) but apparently this is currently not working? I'll have a look at the ESP32 code but SW is not my strong suit sadly. The ESP32 is certainly the cheapest way to get galvanically isolated comms!

Offline zix

  • High Voltage Enthusiast
  • *
  • Posts: 3
  • Karma: +0/-0
    • View Profile
Re: Next Gen DRSSTC
« Reply #161 on: March 16, 2022, 05:00:32 PM »
That is a very nice looking enclosure!

BTW, we updated the documentation on the UD3 Wiki.  See https://github.com/Netzpfuscher/UD3/wiki
« Last Edit: March 16, 2022, 05:02:47 PM by zix »

Offline Netzpfuscher

  • High Voltage Technician
  • ***
  • Posts: 135
  • Karma: +12/-0
    • View Profile
Re: Next Gen DRSSTC
« Reply #162 on: March 16, 2022, 08:10:21 PM »
Looks cool  8)

The ESP32 project is not working anymore. Since then we changed so many things, we needed to include a timecode in the frames and changed the packet sequence number from 8 to 32 bit. But with the Fibernet we simplified the network code. It's as simple a encapsulating the protocol frames into a UDP packet. I think I can port it to the ESP32 in short time, but need to find a bit of time to do it.

Offline Hydron

  • Administrator
  • High Voltage Engineer
  • *****
  • Posts: 440
  • Karma: +18/-0
    • View Profile
Re: Next Gen DRSSTC
« Reply #163 on: March 17, 2022, 01:46:39 AM »
Found the updates to the wiki earlier today - thanks! Would have been most handy about 3 weeks ago when I was bringing it up, but I managed with the basic info that was there at the time.

Looking through the info, I have a couple of questions about the Vsense/Isense connections:
- when using the "battery voltage" connection to look at mains voltage, other than a bridge rectifier does this need a capacitor to smooth out the resulting 100/120Hz signal, or is this filtered out in SW?
- where should the DC current sensor be placed? between the mains rectifier and the big bus capacitors, or between these capacitors and the rest of the bridge?

Offline Netzpfuscher

  • High Voltage Technician
  • ***
  • Posts: 135
  • Karma: +12/-0
    • View Profile
Re: Next Gen DRSSTC
« Reply #164 on: March 17, 2022, 08:32:28 AM »
I thought I had put a RMS filter in the voltage too, but it isn't. So actually you need a capacitor. Only the current signal has a RMS filter. I think I will add RMS to the voltage too.

The DC current sensor needs to be between rectifier and bus capacitor.


Edit:
Added RMS for the voltage. So theoretically no capacitor necessary.

https://github.com/Netzpfuscher/UD3/commit/a4ba5f52c30d6a502a41842188e9969980612b06
« Last Edit: March 17, 2022, 01:01:19 PM by Netzpfuscher »

Offline TMaxElectronics

  • High Voltage Engineer
  • ****
  • Posts: 245
  • Karma: +15/-0
    • View Profile
    • My random (and very empty) electronics blog
Re: Next Gen DRSSTC
« Reply #165 on: June 26, 2022, 05:59:04 PM »
Netzpfuscher and me finally got some high power run time on our UD3s, playing some SIDs at our show at the Extraschicht:


We had some issues with the synth filter though, so both small coils play the same tunes, we initially planned to split the notes between the three coils we had, with the other problem being a slight... lets just say "issue" with the third, 3.5m coil :P


Offline futurist

  • Global Moderator
  • High Voltage Engineer
  • *****
  • Posts: 200
  • Karma: +8/-0
    • View Profile
Re: Next Gen DRSSTC
« Reply #166 on: June 27, 2022, 06:14:48 PM »
Magic smoke caught in IGBT goop :(

Offline Mads Barnkob

  • Administrator
  • High Voltage Expert
  • *****
  • Posts: 1989
  • Karma: +52/-0
  • Denmark
    • View Profile
    • Kaizer Power Electronics
Re: Next Gen DRSSTC
« Reply #167 on: June 27, 2022, 09:10:43 PM »
Very nice how and the SIDs are just extremely lovely, wonderful chip sound :)

The IGBT explosion, might deserve its own thread about the coil in question? Certainly must be a driver issue or pounding it too hard? Water cooling and everything and you still manage to blow of EVERY single die, that is impressive in itself!
https://kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power, audio and general electronics
https://www.youtube.com/KaizerPowerElectronicsDk60/join - Please consider supporting the forum, websites and youtube channel!

Offline TMaxElectronics

  • High Voltage Engineer
  • ****
  • Posts: 245
  • Karma: +15/-0
    • View Profile
    • My random (and very empty) electronics blog
Re: Next Gen DRSSTC
« Reply #168 on: June 28, 2022, 07:38:02 PM »
Quote
Magic smoke caught in IGBT goop :(
Hmm maybe we could pump it back in :P

Quote
The IGBT explosion, might deserve its own thread about the coil in question?

The big coil is from the guy that works at the HV Lab we test our coils at, not mine so idk if I'm qualified to make a post about it. I only helped installing and setting up the UD3 :D

I suspect the problem that killed the IGBTs was just poor HF earth routing. We tested it inside for a long time and had no problems, but we had a very good earth there. When we went to the museum we only earthed the coil with quite a long cable, which caused the UD3 to crash and reset everytime we had a groundstrike and ultimately die (we had to replace the psoc for it on site ::) ). After that the resonant circuit struggled to even reach 1000A in 400us (whereas it easily went to 2000A in half that time before), so something was likely already damaged by that point. Interestingly enough we didn't see excessive heat dissipation in the bridge, which makes me suspect an issue with switch timing but thats just a gut feeling. We didn't have the equipment there to verify everything and just risked a full power run... which didn't go well :P I wasn't at the controls at the time but I feel like the bang happened almost immediately after we started a song too, when the IGBTs were still cold.

The current limit was set at 1500A with the current peaking at a little under 2000A which is actually within the datasheet ratings of the IGBTs :o
We used two of those: https://www.infineon.com/dgdl/Infineon-FS450R17OE4-DS-v03_00-EN.pdf?fileId=db3a304336797ff90136c09b45906f3b
all three half bridges in each module were paralleled so I wouldn't be too sure about current balancing and thus the actual maximum current rating in that configuration, but I'm almost certain that the current we drove wasn't pushing the IGBTs.

High Voltage Forum

Re: Next Gen DRSSTC
« Reply #168 on: June 28, 2022, 07:38:02 PM »

 


* Recent Topics and Posts

post Re: Aluminium Nitride Thermal Pads
[General Chat]
Weston
Today at 08:33:16 AM
post Re: Feedback problems
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mike
Today at 04:20:00 AM
post Re: Feedback problems
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
Today at 02:25:07 AM
post Re: Feedback problems
[Dual Resonant Solid State Tesla coils (DRSSTC)]
flyingperson23
Today at 02:18:56 AM
post Re: Problem with VTTC Staccato interrupter PLZ HELP
[Vacuum Tube Tesla Coils (VTTC)]
davekni
Today at 01:57:37 AM
post Re: Feedback problems
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
Today at 01:54:04 AM
post Re: Feedback problems
[Dual Resonant Solid State Tesla coils (DRSSTC)]
flyingperson23
Today at 12:09:56 AM
post Re: Half-bridge for my first sstc
[Printed Circuit Board]
davekni
August 13, 2022, 10:14:40 PM
post Problem with VTTC Staccato interrupter PLZ HELP
[Vacuum Tube Tesla Coils (VTTC)]
NerdlabsMadScience
August 13, 2022, 09:32:08 PM
post Re: Half-bridge for my first sstc
[Printed Circuit Board]
LoOdaK
August 13, 2022, 09:11:03 PM
post Re: Half-bridge for my first sstc
[Printed Circuit Board]
davekni
August 13, 2022, 08:45:41 PM
post Re: Half-bridge for my first sstc
[Printed Circuit Board]
LoOdaK
August 13, 2022, 08:20:01 PM
post Re: Feedback problems
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
August 13, 2022, 08:00:14 PM
post Re: Half-bridge for my first sstc
[Printed Circuit Board]
davekni
August 13, 2022, 07:41:45 PM
post A little idea I had for my dual full bridge design
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Overlordcheese
August 13, 2022, 06:42:34 PM
post Feedback problems
[Dual Resonant Solid State Tesla coils (DRSSTC)]
flyingperson23
August 13, 2022, 06:17:43 PM
post Re: Half-bridge for my first sstc
[Printed Circuit Board]
LoOdaK
August 13, 2022, 03:18:05 PM
post Re: Half-bridge for my first sstc
[Printed Circuit Board]
davekni
August 12, 2022, 11:03:52 PM
post Re: Half-bridge for my first sstc
[Printed Circuit Board]
LoOdaK
August 12, 2022, 10:53:44 PM
post Re: Half-bridge for my first sstc
[Printed Circuit Board]
davekni
August 12, 2022, 10:13:02 PM
post Re: Half-bridge for my first sstc
[Printed Circuit Board]
LoOdaK
August 12, 2022, 09:35:29 PM
post Re: Aluminium Nitride Thermal Pads
[General Chat]
klugesmith
August 12, 2022, 08:28:28 PM
post Re: Aluminium Nitride Thermal Pads
[General Chat]
davekni
August 12, 2022, 07:26:41 PM
post Re: Aluminium Nitride Thermal Pads
[General Chat]
alan sailer
August 12, 2022, 06:52:58 PM
post Re: Aluminium Nitride Thermal Pads
[General Chat]
klugesmith
August 12, 2022, 06:39:27 PM
post Re: Half-bridge for my first sstc
[Printed Circuit Board]
davekni
August 12, 2022, 06:38:44 PM
post Re: Half-bridge for my first sstc
[Printed Circuit Board]
klugesmith
August 12, 2022, 05:57:00 PM
post Re: Aluminium Nitride Thermal Pads
[General Chat]
klugesmith
August 12, 2022, 12:44:20 PM
post Re: Half-bridge for my first sstc
[Printed Circuit Board]
LoOdaK
August 12, 2022, 08:36:23 AM
post Aluminium Nitride Thermal Pads
[General Chat]
Weston
August 12, 2022, 04:31:17 AM
post Re: Helpy Trying to Replicate This Strange Slittle DRSSTC? PLS
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ItsChloeUwU
August 12, 2022, 02:55:27 AM
post Re: Small DRSSTC Questions
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mike
August 12, 2022, 01:27:14 AM
post Re: Small DRSSTC Questions
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
August 11, 2022, 11:51:42 PM
post Re: Half-bridge for my first sstc
[Printed Circuit Board]
davekni
August 11, 2022, 11:35:43 PM
post Say what -- arcing TO polycarbonate!
[Voltage Multipliers]
abstruse1
August 11, 2022, 10:56:28 PM
post Re: Half-bridge for my first sstc
[Printed Circuit Board]
Mads Barnkob
August 11, 2022, 07:40:03 PM
post Re: Huge Mistake Designing My Coil
[Spark Gap Tesla Coils (SGTC)]
MarcusFunt
August 11, 2022, 06:54:14 PM
post Re: Huge Mistake Designing My Coil
[Spark Gap Tesla Coils (SGTC)]
MRMILSTAR
August 11, 2022, 05:07:28 PM
post Half-bridge for my first sstc
[Printed Circuit Board]
LoOdaK
August 11, 2022, 11:13:20 AM
post Huge Mistake Designing My Coil
[Spark Gap Tesla Coils (SGTC)]
MarcusFunt
August 11, 2022, 10:03:54 AM
post Re: Small DRSSTC Questions
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mike
August 11, 2022, 06:12:48 AM
post Re: Painfully Amazing Stuff
[Voltage Multipliers]
klugesmith
August 11, 2022, 03:14:55 AM
post Re: Painfully Amazing Stuff
[Voltage Multipliers]
55#sofcopper
August 11, 2022, 02:55:16 AM
post Painfully Amazing Stuff
[Voltage Multipliers]
alan sailer
August 10, 2022, 10:47:09 PM
post Re: HV AC Current Measurement
[Transformer (Iron Core)]
klugesmith
August 10, 2022, 07:51:16 PM
post Re: HV AC Current Measurement
[Transformer (Iron Core)]
klugesmith
August 10, 2022, 06:36:23 PM
post Re: HV AC Current Measurement
[Transformer (Iron Core)]
alan sailer
August 10, 2022, 01:34:40 AM
post Re: High Voltage pcb
[Printed Circuit Board]
FonziDaytona
August 09, 2022, 10:17:24 PM
post Re: High Voltage pcb
[Printed Circuit Board]
Twospoons
August 09, 2022, 10:16:33 PM
post Re: How To Varnish A Tesla Coil Secondary Coil
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
August 09, 2022, 09:22:37 PM
post Re: High Voltage pcb
[Printed Circuit Board]
Mads Barnkob
August 09, 2022, 09:19:26 PM
post Re: High Voltage pcb
[Printed Circuit Board]
FonziDaytona
August 09, 2022, 08:32:08 PM
post Re: High Voltage pcb
[Printed Circuit Board]
Mads Barnkob
August 09, 2022, 08:26:32 PM
post Re: Coherent VersaPulse VPW - what should I do with it?
[Light, Lasers and Optics]
Mads Barnkob
August 09, 2022, 08:15:54 PM
post High Voltage pcb
[Printed Circuit Board]
FonziDaytona
August 09, 2022, 08:15:10 PM
post Top load material selection
[Spark Gap Tesla Coils (SGTC)]
55#sofcopper
August 09, 2022, 04:44:43 PM
post Re: HV AC Current Measurement
[Transformer (Iron Core)]
MRMILSTAR
August 09, 2022, 04:20:01 PM
post Loneoceans UD 2.7 rev c issue
[General Chat]
mthome4
August 09, 2022, 03:11:56 PM
post Re: A big-ish diy xformer
[Transformer (Ferrite Core)]
oneKone
August 09, 2022, 07:30:29 AM
post Re: BrOdin coil - High power Big sparks!
[Dual Resonant Solid State Tesla coils (DRSSTC)]
fh89
August 09, 2022, 07:06:52 AM
post Re: HV AC Current Measurement
[Transformer (Iron Core)]
klugesmith
August 09, 2022, 07:06:34 AM
post Re: HV AC Current Measurement
[Transformer (Iron Core)]
davekni
August 09, 2022, 06:28:49 AM
post Re: Coherent VersaPulse VPW - what should I do with it?
[Light, Lasers and Optics]
Twospoons
August 09, 2022, 06:18:56 AM
post Re: MidiStick V2.0: Next gen tesla coil interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
davekni
August 09, 2022, 06:08:53 AM
post Re: HV AC Current Measurement
[Transformer (Iron Core)]
klugesmith
August 09, 2022, 04:29:49 AM
post HV AC Current Measurement
[Transformer (Iron Core)]
alan sailer
August 09, 2022, 02:18:35 AM
post Re: Coherent VersaPulse VPW - what should I do with it?
[Light, Lasers and Optics]
TMaxElectronics
August 09, 2022, 12:42:21 AM
post Re: A big-ish diy xformer
[Transformer (Ferrite Core)]
abstruse1
August 09, 2022, 12:31:47 AM
post Re: How To Varnish A Tesla Coil Secondary Coil
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Twospoons
August 09, 2022, 12:22:26 AM
post Re: Coherent VersaPulse VPW - what should I do with it?
[Light, Lasers and Optics]
Twospoons
August 09, 2022, 12:00:39 AM
post Coherent VersaPulse VPW - what should I do with it?
[Light, Lasers and Optics]
TMaxElectronics
August 08, 2022, 11:24:45 PM
post Re: Optic fiber interrupter in EU
[Dual Resonant Solid State Tesla coils (DRSSTC)]
TMaxElectronics
August 08, 2022, 10:07:08 PM
post Re: How To Varnish A Tesla Coil Secondary Coil
[Dual Resonant Solid State Tesla coils (DRSSTC)]
TMaxElectronics
August 08, 2022, 10:01:56 PM
post Re: Optic fiber interrupter in EU
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Maju
August 08, 2022, 10:00:22 PM
post Re: Optic fiber interrupter in EU
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
August 08, 2022, 09:52:09 PM
post Re: Helpy Trying to Replicate This Strange Slittle DRSSTC? PLS
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
August 08, 2022, 09:51:09 PM
post Re: Where To Get "Free" TO-247 IGBTs and MOSFETs
[Electronic Circuits]
TMaxElectronics
August 08, 2022, 09:50:49 PM
post How To Varnish A Tesla Coil Secondary Coil
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
August 08, 2022, 09:47:24 PM
post Re: Syntherrupter - Build by AstRii
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
TMaxElectronics
August 08, 2022, 09:44:04 PM
post Re: BrOdin coil - High power Big sparks!
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
August 08, 2022, 09:43:38 PM
post Re: MidiStick V2.0: Next gen tesla coil interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
TMaxElectronics
August 08, 2022, 09:42:37 PM
post Re: Help for people buying the "12-48 Volt 1800/2500 Watt ZVS induction Heater"
[Electronic Circuits]
petespaco
August 08, 2022, 09:27:10 PM
post Optic fiber interrupter in EU
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ItsChloeUwU
August 08, 2022, 08:09:38 PM
post Helpy Trying to Replicate This Strange Slittle DRSSTC? PLS
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ItsChloeUwU
August 08, 2022, 04:10:00 PM
post Re: BrOdin coil - High power Big sparks!
[Dual Resonant Solid State Tesla coils (DRSSTC)]
fh89
August 08, 2022, 07:54:27 AM
post Re: SCR precharge
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
August 07, 2022, 07:28:51 PM
post Re: Bipolar CW -- update
[Voltage Multipliers]
abstruse1
August 07, 2022, 07:15:11 PM
post Re: BrOdin coil - High power Big sparks!
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
August 07, 2022, 06:46:44 PM
post Re: SCR precharge
[Dual Resonant Solid State Tesla coils (DRSSTC)]
alexhanyuan
August 07, 2022, 06:11:59 PM
post Re: BrOdin coil - High power Big sparks!
[Dual Resonant Solid State Tesla coils (DRSSTC)]
fh89
August 07, 2022, 08:25:56 AM
post Re: SCR precharge
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
August 07, 2022, 03:46:50 AM
post SCR precharge
[Dual Resonant Solid State Tesla coils (DRSSTC)]
alexhanyuan
August 06, 2022, 10:23:27 PM
post Re: MidiStick V2.0: Next gen tesla coil interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
davekni
August 06, 2022, 09:34:35 PM
post Re: Can someone help, am not getting any plasma :-) much appreciated
[Spark Gap Tesla Coils (SGTC)]
ItsChloeUwU
August 06, 2022, 07:49:05 PM
post Re: Primary Wire Getting Hot, Secondary flashovers, RSG Not Alway Fireing? Help pls.
[Spark Gap Tesla Coils (SGTC)]
ItsChloeUwU
August 06, 2022, 07:42:00 PM
post Re: MidiStick V2.0: Next gen tesla coil interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
AstRii
August 06, 2022, 07:05:35 PM
post Re: MidiStick V2.0: Next gen tesla coil interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
TMaxElectronics
August 06, 2022, 04:06:48 PM
post Re: CORE FOR GDT AND CT
[Solid State Tesla Coils (SSTC)]
Didik
August 05, 2022, 11:59:58 AM
post Re: CORE FOR GDT AND CT
[Solid State Tesla Coils (SSTC)]
Rafft
August 05, 2022, 09:56:26 AM
post Re: CORE FOR GDT AND CT
[Solid State Tesla Coils (SSTC)]
davekni
August 05, 2022, 06:25:39 AM

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