Author Topic: Functioning limits of a SSTC interrupter duty cycle and frequency  (Read 539 times)

Offline Seb555

  • High Voltage Enthusiast
  • *
  • Posts: 7
  • Karma: +0/-0
    • View Profile
After recently getting my first SSTC to produce arcs, I've been experimenting with the interrupter.  My goal is to pulse width modulate the interrupter signal with audio in order to produce music, rather than just making simple 100Hz or 500Hz tones. Such an interrupter signal would need to have a carrier frequency above human hearing (like 30kHz) so that only the PWM aspect is heard.

Because I wanted to first test the capabilities of my SSTC, I constructed a temporary circuit with a microcontroller (arduino nano) to produce the interrupter signal. All it does it produce a square wave with a set frequency and duty cycle controlled by a potentiometer. The problem that I've been facing is that whenever I set the frequency above 1kHz, the tesla coil only comes on for a split second and then shuts off until I disconnect power and turn it on again. This same phenomenon has been occurring for lower interrupter frequencies too, except that it takes a certain duty cycle before the tesla coil shuts off. Here is a list of the interrupter frequencies I have tested and their corresponding max duty cycles (in % on time) before my SSTC spontaneously shuts off:
60Hz - 2%, 100Hz - 4%, 200Hz - 7%, 400Hz - 12.37%, 600Hz - 14%, 800Hz - 1%.
To try to increase feedback and mitigate noise (what I assume to be the issues here) I increased my feedback CT windings to 4 and encased the interior of the wooden box that holds my electronics with earth grounded aluminum foil. These changes barely made an effect on the performance. I also tried changing the topload from a large toroid to a smaller disk (and afterwards tested with no topload) but only got worse results.
I'm just wondering if anyone has ever encountered a similar issue of their SSTC shutting off (without getting damaged) at high interrupter frequencies or duty cycles and what you guys have done to deal with this sort of problem.
« Last Edit: August 24, 2019, 09:54:29 PM by Seb555 »

High Voltage Forum


 


* Recent Topics and Posts

post Re: Seeking to build a 400+kHz IH, ZVS platform, high performance components
[Electronic Circuits]
johnf
Today at 08:47:57 AM
post Re: Seeking to build a 400+kHz IH, ZVS platform, high performance components
[Electronic Circuits]
klugesmith
Today at 07:56:14 AM
post Re: Little Bee B Field / Current Probe
[General Chat]
Weston
Today at 02:25:42 AM
post Re: Seeking to build a 400+kHz IH, ZVS platform, high performance components
[Electronic Circuits]
T3sl4co1l
July 14, 2020, 11:33:09 PM
post Re: Different styles of HV electrodes
[Voltage Multipliers]
johnf
July 14, 2020, 09:48:39 PM
post Different styles of HV electrodes
[Voltage Multipliers]
MRMILSTAR
July 14, 2020, 09:34:39 PM
post Re: Little Bee B Field / Current Probe
[General Chat]
johnf
July 14, 2020, 09:19:11 PM
post Re: Little Bee B Field / Current Probe
[General Chat]
johnf
July 14, 2020, 09:06:21 PM
post Seeking to build a 400+kHz IH, ZVS platform, high performance components
[Electronic Circuits]
JimOB
July 14, 2020, 05:15:03 PM
post Re: Little Bee B Field / Current Probe
[General Chat]
Weston
July 14, 2020, 07:27:18 AM
post Re: Drsstc tank Cap testing
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Weston
July 14, 2020, 07:02:44 AM
post Drsstc tank Cap testing
[Dual Resonant Solid State Tesla coils (DRSSTC)]
oneKone
July 14, 2020, 05:56:46 AM
post Re: Easy to build Polyphonic MIDI Interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Max
July 14, 2020, 12:03:47 AM
post Re: Little Bee B Field / Current Probe
[General Chat]
station240
July 13, 2020, 01:08:35 PM
post Re: Server PSU Hack - HP DPS-800GB A, 12VDC 1000W
[Electronic Circuits]
rikkitikkitavi
July 13, 2020, 08:30:46 AM
post Re: Capacitors and arcs
[Beginners]
Paradox
July 13, 2020, 01:59:09 AM
post Re: Easy to build Polyphonic MIDI Interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
TMaxElectronics
July 13, 2020, 01:20:59 AM
post Re: compact midi interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
TMaxElectronics
July 12, 2020, 05:06:10 AM
post Re: Little Bee B Field / Current Probe
[General Chat]
Steve Ward
July 11, 2020, 10:23:24 PM
post Re: DRSSTC with litz-wire primary and 40 x TO247 IGBT H-Bridge
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
July 11, 2020, 09:36:02 PM
post Re: Server PSU Hack - HP DPS-800GB A, 12VDC 1000W
[Electronic Circuits]
Mads Barnkob
July 11, 2020, 07:36:23 PM
post Re: Server PSU Hack - HP DPS-800GB A, 12VDC 1000W
[Electronic Circuits]
Fumeaux
July 11, 2020, 04:45:18 PM
post Server PSU Hack - HP DPS-800GB A, 12VDC 1000W
[Electronic Circuits]
Mads Barnkob
July 11, 2020, 01:26:41 PM
post Re: Little Bee B Field / Current Probe
[General Chat]
Twospoons
July 11, 2020, 07:53:04 AM
post Little Bee B Field / Current Probe
[General Chat]
Weston
July 11, 2020, 06:37:03 AM
post Re: PCB etching, DIY (chemistry mostly)
[Printed Circuit Board]
klugesmith
July 11, 2020, 04:18:29 AM
post Re: PCB etching, DIY (chemistry mostly)
[Printed Circuit Board]
Twospoons
July 11, 2020, 01:35:07 AM
post Re: PCB etching, DIY (chemistry mostly)
[Printed Circuit Board]
klugesmith
July 10, 2020, 11:35:05 PM
post Re: Capacitors and arcs
[Beginners]
Morvandium
July 10, 2020, 11:10:57 PM
post Re: PCB etching, DIY (chemistry mostly)
[Printed Circuit Board]
Morvandium
July 10, 2020, 11:06:07 PM
post Re: Capacitors and arcs
[Beginners]
k42
July 10, 2020, 08:53:06 PM
post Re: XRay Tank- any ideas about what is inside
[Transformer (Ferrite Core)]
HighVoltageRulezz
July 10, 2020, 07:20:48 PM
post Re: Why is Auto-transformer (variac) called transformer??
[Beginners]
Morvandium
July 10, 2020, 04:45:43 PM
post Re: Cathodes in Compact Fluorescent Lamps
[Light, Lasers and Optics]
T3sl4co1l
July 10, 2020, 10:57:29 AM
post Re: Configuration of a half bridge.
[Electronic Circuits]
hammertone
July 10, 2020, 08:55:30 AM
post Re: Configuration of a half bridge.
[Electronic Circuits]
johnf
July 10, 2020, 08:48:33 AM
post Re: Cathodes in Compact Fluorescent Lamps
[Light, Lasers and Optics]
davekni
July 10, 2020, 07:00:13 AM
post Re: Configuration of a half bridge.
[Electronic Circuits]
davekni
July 10, 2020, 06:57:36 AM
post Re: Measuring LED efficiency
[Light, Lasers and Optics]
davekni
July 10, 2020, 05:44:54 AM
post Re: Configuration of a half bridge.
[Electronic Circuits]
johnf
July 09, 2020, 09:23:38 PM
post Re: Easy to build Polyphonic MIDI Interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Max
July 09, 2020, 09:09:08 PM
post Re: Cathodes in Compact Fluorescent Lamps
[Light, Lasers and Optics]
klugesmith
July 09, 2020, 07:00:49 PM
post Re: Measuring LED efficiency
[Light, Lasers and Optics]
TMaxElectronics
July 09, 2020, 02:33:38 PM
post Re: Configuration of a half bridge.
[Electronic Circuits]
hammertone
July 09, 2020, 12:16:32 PM
post Re: Configuration of a half bridge.
[Electronic Circuits]
hammertone
July 09, 2020, 11:46:10 AM
post Re: Measuring LED efficiency
[Light, Lasers and Optics]
Twospoons
July 09, 2020, 10:56:18 AM
post Re: Configuration of a half bridge.
[Electronic Circuits]
johnf
July 09, 2020, 08:37:52 AM
post Re: Measuring LED efficiency
[Light, Lasers and Optics]
klugesmith
July 09, 2020, 06:45:18 AM
post Re: Measuring LED efficiency
[Light, Lasers and Optics]
TMaxElectronics
July 09, 2020, 02:36:22 AM
post Re: Configuration of a half bridge.
[Electronic Circuits]
Mads Barnkob
July 08, 2020, 09:43:20 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