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Forums
4hv.org :: Forums :: Tesla Coils
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Tesla coil in a single chip?

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Finn Hammer
Sat Sept 08 2007, 06:15AM Print
Finn Hammer Registered Member #205 Joined: Sat Feb 18 2006, 11:59AM
Location: Skørping, Denmark
Posts: 741
Perhaps not quite there yet, but look what Fairchild has just released:

Link2

Cheers, Finn Hammer
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Dr. Dark Current
Sat Sept 08 2007, 11:00AM
Dr. Dark Current Registered Member #152 Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
strange, just yesterday I was thinking of that if some company started producing a single chip TC driver that would only requie to connect the bridge and feedback, they could maybe make quite some profit...
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Marko
Sat Sept 08 2007, 12:49PM
Marko Registered Member #89 Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145
I don't see what's the hype about it.
As I think any bootstrapped half/full bridge driver would do as a 'single IC TC driver'.

Although I would still prefer to use GDT so any dual low-side gate driver could be a single chip driver.


I would see something in this only if they implemented things like zero-cross disable logic which would be useful for DRSSTC. Only then it would reduce parts count.

Not to say how much is better to use low-cost readily available components than expensive special purpose IC's.

The finn's IC is also only rated for 300V, so it wouldn't work for 230V mains.

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Terry Fritz
Sun Sept 09 2007, 09:16PM
Terry Fritz Registered Member #393 Joined: Tue Apr 18 2006, 12:30AM
Location:
Posts: 297
Cool! for $41 each that has all the stuff for a nice little DRSSTC amazed

It looks real easy to "fix" if it blows up too since you just toss the module and all the troubles are gone for sure which is actually a pretty nice feature.

Nice find Finn smile

Cheers,

Terry
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Experimentonomen
Sun Sept 09 2007, 09:43PM
Experimentonomen Registered Member #941 Joined: Sun Aug 05 2007, 10:09AM
Location: in a swedish junk pile
Posts: 497
Eww that module is mighty slow.
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Terry Fritz
Sun Sept 09 2007, 11:58PM
Terry Fritz Registered Member #393 Joined: Tue Apr 18 2006, 12:30AM
Location:
Posts: 297
Eww that module is mighty slow.

The 230/270nS time delays are not untypical for us.... Nice that they are well matched!

The 50nS switching times are fast...

With low duty cycle, the continuous power dissipation losses have no meaning in our special case.

Speed seems fine to me, unless I am really missing something...

Cheers,

Terry


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Marko
Mon Sept 10 2007, 12:37PM
Marko Registered Member #89 Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145
270ns delay is a lot. UCC's have only like 40ns delay, if there is logic in front of them then add like 10-20ns.

Someone may try building something out of it as a curiosity - but is it practical? no. Discretes are far more fruitful.
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Steve Conner
Mon Sept 10 2007, 12:39PM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
A PLL would fix that. Too bad my PLL driver board is 5 times the size of the power module wink
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Capper
Mon Sept 10 2007, 05:14PM
Capper Registered Member #914 Joined: Fri Jul 20 2007, 06:22PM
Location: South Bend, IN
Posts: 85
I was looking at this new chip for a small coil also since it will go up beyond 1MHz:
FAN2106

Scott
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Experimentonomen
Mon Sept 10 2007, 07:11PM
Experimentonomen Registered Member #941 Joined: Sun Aug 05 2007, 10:09AM
Location: in a swedish junk pile
Posts: 497
eww
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