Tesla coil in a single chip?

Finn Hammer, Sat Sept 08 2007, 06:15AM

Perhaps not quite there yet, but look what Fairchild has just released:

Link2

Cheers, Finn Hammer
Re: Tesla coil in a single chip?
Dr. Dark Current, Sat Sept 08 2007, 11:00AM

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...
Re: Tesla coil in a single chip?
Marko, Sat Sept 08 2007, 12:49PM

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.

Re: Tesla coil in a single chip?
Terry Fritz, Sun Sept 09 2007, 09:16PM

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
Re: Tesla coil in a single chip?
Experimentonomen, Sun Sept 09 2007, 09:43PM

Eww that module is mighty slow.
Re: Tesla coil in a single chip?
Terry Fritz, Sun Sept 09 2007, 11:58PM

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


Re: Tesla coil in a single chip?
Marko, Mon Sept 10 2007, 12:37PM

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.
Re: Tesla coil in a single chip?
Steve Conner, Mon Sept 10 2007, 12:39PM

A PLL would fix that. Too bad my PLL driver board is 5 times the size of the power module wink
Re: Tesla coil in a single chip?
Capper, Mon Sept 10 2007, 05:14PM

I was looking at this new chip for a small coil also since it will go up beyond 1MHz:
FAN2106

Scott
Re: Tesla coil in a single chip?
Experimentonomen, Mon Sept 10 2007, 07:11PM

eww