Re: [TCML] more comments on the Hammer circuit

[Finn Hammer <f-h@xxxx>]

piranha skrev:
> Hi,
> snip
>
> But there is a trick...  I don't know if Finn, Richie, or everyone 
> else figured it out first... ????
>
> snip
> Who figure it out first anyway???  Are there any patent 
> complications???  This is so important we had better figure out that 
> "who's the daddy?" thing!!  Amateurs don't need to worry, but folks 
> like Finn would not want to get caught two years from now on coils 
> they sold for money.  God only know s how 'I' will use it  >:D
Terry, all

I started to figure this out about 3 years ago. At that time, I was 
trying to solve the problem with a peak detect and hold chip, PKD01 from 
Analog. The idea was to detect and hold each (rectified) current peak, 
then divide with 10 in a resistive divider, hold it till just before the 
current zero crossing, and use this signal to trigger a comparator. This 
would be complicated, and not elegant.

2 years ago, at Cambridge Teslathon, I described this circuit to Richie 
Burnett.
Richie listened attentively, while mentally counting backwards in HEX 
(he does that. Keeps his brain tuned, he says...   :-)  )
Then he said from the top of his head:  "You don't need to do that, just 
stick an inductor in series with the burden resistor, and the voltage 
leads the current. Of course your output signal will increase due to the 
reactance of the coil."

After visiting Dr. Spark in Arizona this spring, I set my mind to make a 
big coil like his Fatboy, and so the quest to solve the ZCS dilemma took 
off with speed.

I think the rest is in the paper, but I started to develop this circuit 
May 1st. as documented over at 4HV.org in the projects forum, thread 
called "Thumper".

I invite you all to go there and follow the progress.

The idea of keeping this circuit to myself has struck my mind, since I 
have a well documented Tesla Coiling Buisness.
I decided against it for the following reasons:

1.
When I started Coiling about 10 years ago, I knew nothing. But I learned 
here on the lists and forums, so I thought it was time to give something 
back.

2.
Giving something out creates that good Carma which brings something 
back. I recon I still need lot's of advice in the future and want to 
stay on good terms with the people who can give it.

3.
As if this was a scientific society, I go for the honours!

So credit where credit´s due. It really was Richie Burnett's idea.

I could have kept that to myself too, if I wanted.

Cheers, Finn Hammer

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