increase the coil's magnetic field

[david135]

good this is for the expertsd,and read a lot, about increasing the power of the coil, especially the rise of this voltage, well I have a series of restlessness,I have a surf pi 1.2 and a barracuda, there is the questions.
If such 10000v injected to coil. This voltage remains in the coil, it breaks the circuit of the detector, as is blurred by the pulses of the detector?
fear is that I have to inject 10000v and reach the circuit and burn,
I say this because I have a booster circuit that can reach more than 80000v and depends on how many want to join,
Greetings to all and thank you.

[WM6]

good this is for the expertsd,and read a lot, about increasing the power of the coil, especially the rise of this voltage, well I have a series of restlessness,I have a surf pi 1.2 and a barracuda, there is the questions.
If such 10000v injected to coil. This voltage remains in the coil, it breaks the circuit of the detector, as is blurred by the pulses of the detector?
fear is that I have to inject 10000v and reach the circuit and burn,
I say this because I have a booster circuit that can reach more than 80000v and depends on how many want to join,
Greetings to all and thank you.

If you do not plan to have children, descripted experiments can be acceptable, otherwise - this is the best way you become sterile. Sterile and without any gold treasure.

http://www.examiner.com/environmenta...-sperm-quality

[Skippy]

If you have all this high-voltage equipment, a more amusing way to shorten your life would be to build a 'coin-shrinker'. Simply charge up a washing-machine-sized capacitor to 80 KV, then discharge it rapidly across a short coil of wire, with a coin,etc inside it. An explosion-proof screen is normally recommended, but you seem to have a poor perception of danger, so this may be omitted. Have fun.

[david135]

ajajajjajaja,, let lords was an idea, I put it to 80kV to put a limit, if you advise me of more or less as would be well to inject voltage in the coil, I'm not looking forward to the detector to China, only about 70 cm 50cm or less or more, but bear reason if for any reason short of the water makes me stay fried, but if I have dirijis offline

[golfnut]

yep were all experts here

[wam]

David135, please give as some photos of your 80 KV devices so it will be some taste
of reality. I never seen such thing.
Regards

[david135]

good taser is a high rate, here we get home the video link, I thought to implement this to the coil, to inject more voltage, or a suitable voltage,, logically I want to stay upright in the water, needless to say that serves as a defense for someone who is in the desert or jungle, so everyone who uses it as he pleases, greetings.
http://www.youtube.com/watch?v=sfdYOpXOQz0

[wam]

Dear David135, thank You for the info. I am guessing that You have no education in the field of electric/electronic since -It is OK, to make it simple, fabricating electromagnetic field is not enough to make high voltage. Just to demonstrate 80 000 V x 1 mA = 80 W. It will be hard to get 80W from 9V battery but easy to make taser.
There is many other formulas to be use in this task, if you are young man and You want to know why people are a little sarcastic then it is good to take some electronic education path.
What is for us from this post - Garrett Infinium uses voltage multiplier to make 40 V out of 12V and all can be usable as practical and powerful detector. If anyone will make it 80 V then it will be needed to face many advanced design problems.

[golfnut]

/years ago in a marine radio college I was taught how you get 25kW of RF energy into the sky in 1us.

Id guess there are legs in the following approach for getting more of a thum into and hence out of your coil.



schematic wrong see next post

[golfnut]

edwqed

[mikebg]

edwqed

Golfnut, the schematic remains wrong because transistor shortens via diode the power source and inductance of PFN appears in series to TX coil. Please search the WEB for PFN or "Pulse Forming Network".
http://esr.lib.ttu.edu/bitstream/han...pdf?sequence=1

[Skippy]

I agree with Mike, the body-diode integral to the FET will be forward-biased during charging.Is the FET meant to be enhancement n-channel?

[DOOLEY]

poss work if there was an inductor after D1 and before drain of PMOS ,

[golfnut]

This is only a teaser, not a functional final schematic.

It is a primary pulse forming network from a radar.

There are many ways of doing it.



essentially its charging up a delay line with stored charge - if all of the cct matches well U can discharge this stored energy in short time.

Much better than just turning a fet off.

S

[mikebg]

The attached here circuit diagrams explain the main principle of TX with PFN. For rectangle pulses, the artificial line consists of three coils L1 - L3 and three
capacitances C1 - C3) .
The charging choke Lch, diode D1 and electronic switch S1 (thyristor) operate as a step-up converter charging the artificial line to enough high voltage. A resistor R1 is added for damping. C represents the equivalent stray capacitance.
However no need of rectangle pulses for PI, ie we can use a simple
PFN having only L1 (TX coil) and C1 (energy capacitor). No need of L2, L3, C2 and C3.
http://australianelectronicgoldprosp...p?topic=1076.0
Note that the TX of a classic PI detector is specific case (primitive simplification) of circuit diagram with PFN. In this case we can not use thyratron or SCR
(thyristor) for S1 because there is no inductances for self-quenching of thyratron.