Andiruptor

The Andiruptor (= by Andi Saile developped induction coil interruptor) is a modern solid state electronic interruptor, where the pulse-energy of the induction coil is charged in traditional style, as Ebang = ( L *  i2 ) / 2 , then discharged by current-interruption, generating a high voltage induction pulse. By means of precise feedback control of primary current and voltage, as well as phase-controlled on- and off- swiching, it is possible  to obtain a diversity of operating modes, which, we believe were not yet, realized in a single interruptor-apparatus (examples: Wagner-hammer, mercury interruptor, effect-similarity to electrolytic interruptors like Wehnelt). The induction coils can be operated at higher power (up to ~1kW) and  higher break rates (up to kHz), than with commonly seen interruptors.

In the course of time, I found myself getting enthusiastic about the possibilities of Andi's interruptor, and was able to take part in the later developpment of the device. I also felt the need, to make my own specimen of the whole system, and the pictures below give an idea of that effort. Finally I had the joy to baptize the "Andiruptor" as a combination of  my hobby-friend Andi's name and the interruptor.


Andi Saile, with 
one of the former
 interrupter models
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Kurt's Andiruptor
frontview
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Andiruptor
backview 
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printed-circuit-board
soldering side
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printed-circuit-board
parts side
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Andiruptor innards
bottom view
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Andiruptor innards
top view
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Andiruptor innards
side view 
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my Variac-box
(max. 260V / 10A)
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Power supply for up
to 50V / 20A DC
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Power supply inside
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Variac & PSU, used
for shunt-calibration
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Capacitor 0 - 14.9uF
binary-tree selectable
(32 steps of ~0.5uF)
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Capacitor 0 - 14.9uF 
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Setup of  the
Andiruptor-System
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Setup with "big UTZ"
induction coil, 
Terry-"antenna"
and Jacobsladder
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Jacobsladder
3 firing states
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 Jacobsladder movie
...and listen to the sound,
which changes, as
different choices for the
number of primary
discharge cycles are
choosen, by setting the
10 position switch in the
"big UTZ" photo
Waveforms:
typical example
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Block-schematic
and Documentation
Andiruptor 2006
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