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4hv.org :: Forums :: Tesla Coils
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Interrupter

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KresoLiubov
Wed Dec 12 2007, 12:28PM Print
KresoLiubov Registered Member #1153 Joined: Mon Dec 03 2007, 07:27PM
Location: Croatia
Posts: 213
I'm interested which of interrupter circuit you use and which one is considered to be best?

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Tom540
Wed Dec 12 2007, 06:06PM
Tom540 Banned on 3/17/2009.
Registered Member #487 Joined: Sun Jul 09 2006, 01:22AM
Location:
Posts: 617
I like the dual NE555 timer (same one Steve Ward uses) version because frequency adjustment doesn't screw with the pulse width like the single timer version does.
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Dr. H.
Wed Dec 12 2007, 07:43PM
Dr. H. Registered Member #931 Joined: Mon Jul 30 2007, 05:25PM
Location: Bulgaria
Posts: 486
I fully agree with Tom540. This type of Interrupter gives you freedom. You don't have to worry when you change your frequency that the pulse width will change. While with only one 555 it is possible to overheat and destroy your bridge before you notice what is happening.
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KresoLiubov
Wed Dec 12 2007, 08:05PM
KresoLiubov Registered Member #1153 Joined: Mon Dec 03 2007, 07:27PM
Location: Croatia
Posts: 213
Is it this circuit Link2 ? And what is "burst mode" i didnot completly understand it.
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Dr. Dark Current
Wed Dec 12 2007, 08:25PM
Dr. Dark Current Registered Member #152 Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
Why did no one mention tl494? It has independently adjustable frequency and duty cycle.
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Tom540
Wed Dec 12 2007, 08:59PM
Tom540 Banned on 3/17/2009.
Registered Member #487 Joined: Sun Jul 09 2006, 01:22AM
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Posts: 617
I've never used the tl494. I do have some surface mount ones at home in a drawer.
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Shaun
Wed Dec 12 2007, 11:35PM
Shaun Registered Member #690 Joined: Tue May 08 2007, 03:47AM
Location: New Jersey, USA
Posts: 616
About Burst mode, I like to think of it as interrupting the interrupter. It basically does exactly that, allowing you to use extremely high BPS or duty cycle for short periods. I left that out on my interrupter, however, in favor of single shot.
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HV Enthusiast
Thu Dec 13 2007, 02:20PM
HV Enthusiast Registered Member #15 Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
KresoLiubov wrote ...

I'm interested which of interrupter circuit you use and which one is considered to be best?



Actually, you should probably define what "best" means?

- Some are simple (just a few controls)

- Some are advanced (lots of controls)

- Some can accept music source to create audio modulated coil

- Some are smart (fault detection, etc...)

- Some are uP based

etc...

The "best" interrupter design should be based on what your specific application / requirements are.
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KresoLiubov
Thu Dec 13 2007, 05:07PM
KresoLiubov Registered Member #1153 Joined: Mon Dec 03 2007, 07:27PM
Location: Croatia
Posts: 213
EastVoltResearch wrote ...

KresoLiubov wrote ...

I'm interested which of interrupter circuit you use and which one is considered to be best?



Actually, you should probably define what "best" means?

- Some are simple (just a few controls)

- Some are advanced (lots of controls)

- Some can accept music source to create audio modulated coil

- Some are smart (fault detection, etc...)

- Some are uP based

etc...

The "best" interrupter design should be based on what your specific application / requirements are.



Simple to control on and off time and work reliably. I still use something similiar to Steves Interupter on Mini SSTC but simply wanted to upgrade it
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