But Flybacks are AC
Every color TV from 1990 onwards and all PC (CRT) monitors have a flyback in epoxy and with a rectifier diode glued in, that means, with DC output... And I'm using the DC one. Only old black and white TV's from 1960's had flyback with AC output, or a special 8kV flyback + multiplier cascade. (This was used in old color TV's, 1982 or so. Tesla Color 110ST, the one I disassembled, has this combination).
If an AC flyback is used, the rectifier diode is separated from the flyback itself (or the voltage multiplier is used) but still, DC flows into the CRT screen.
That shows the result of your electricity knowledge. Bravo.
// The dates I mentioned may differ in U.S. and everywhere else. In Czechoslovakia we had black-and-white television broadcasting from 1956 or so, color TV broadcasting was available in the mid 70's or 1980. //
It only takes miliseconds for a heart to go into fibrilation when it's muscles have been pulsed at 20kHz - far beyond the capabilities of human reaction times.
Pure bullshit, the high frequency current travels only by skin, it doesn't go deeper and it won't kill you, smartass. Altough I'm using the rectified one, so this doesn't apply.
[quote="Wikipedia on "Electric shock""]Generally, higher frequency AC current tends to run along the skin rather than penetrating and touching vital organs such as the heart. While there will be severe burn damage at higher voltages, it is normally not fatal.[/quote]
And the AC or DC flybacks produce
max. 5 mA at 20 or 30 kV, fool... (I'm not counting the zero voltage switching driver in this case, that *can* be dangerous.)
I'm sorry, but if any HV engineer acted like you do, he would be fired on the spot and never be able to find a job in the industry again.
Don't copy
Brendan's posts, if you do not want to respond any further, it's tiring to read all this babble. And I'm not going to work with HV as a professional. It's just for fun.
both to prevent others from killing themselves
Their fault, I've already given warnings on my site and even in the previous thread. And again, transistor driven flyback doesn't kill...
...,I seriously think the mods should remove your threads on your electrical experiments.
Blah blah blah...
I have had safety discussions with people before - both regarding high current and high voltage designs.
I don't care about you and all your pathetic warnings, because
(Such as hold two connectors at a 20kV potential difference, one in each hand) and effctively respond with a "f*ck you."
you've saw too many idiots who played smart. Do you think I would do such a thing?
And if you think that flyback is a
high-current device, you deserve a well placed slap-in-the-face and 24 hours of 500 people laughing at you, not to mention you shouldn't be able to find a job in industry again.
Correct - but touch it at the wrong spot and the current will cause your muscles to contract
Bullshit at currents lower than 10mA at AC...
"EDIT: Also, I don't think it's "cool", I don't think it's "smart", and I think you're an idiot to be doing stuff like that. My 2c."
"Nah, he's just an idiot in general... inflater, you have fun now.."
"A little survival of the fittest in action, eh?"
Again, blah blah blah... pathetic. Go learn the basic theory, fools. Especially flybacks, their types and maximum currents driven at their resonant frequency by 555/mosfet or transistor drivers. If you want to argue with me, do not mix up apples with oranges.
they probably know what they're talking about.
No they do not, all these posts are delusional. No way a 20kV, 20kHz flyback at AC driven at it's standard parameters could penetrate into muscles and touch vital organs. 20kV at 5mA, even DC, will kill only heart-sick people and 70 year olds, plus
I don't even try to go near the live electrodes when it's live. [How many times must I repeat this sentence for all those boneheaded minds?] The neutrality here is disputed, all posts are facing against me, so all of you who complain, go learn the theory, because all your warnings are pathetic as I already know them, plus they do NOT apply in this case. I post the results here for your opinions, not for your silly pathetic warnings and all. I don't care. If you don't have something creative to say, don't post. Rookies should not attempt to build this, as I have given enough warnings even on my site, and in the previous thread. And if you think that I'm a noob at this, think whatever you want and don't post. As I said, I don't care about your warnings. You're not skilled enough to argue with me with this case. I do on my own.
In short...
1.Currents 5mA or lower through skin are not lethal at standard conditions (body resistance in ohms/kiloohms). 5V, 12V, 230V, 400V, 20 000V.
In fact, if you would had a supply that could output even 450 000mA at 12V (like a re-wound microwave transformer), it wouldn't kill you, because there's just too little voltage to "breach" through the skin.
2.The "cannot let go" current that causes muscle contractions start at 15mA through skin.
3.1mA can be fatal only when it's applied *directly* on the heart's muscle. That means cutting you open.
4.Fibrillation starts at 50-60mA at AC, 300-500mA at DC.
5.These points apply only when there is enough voltage to "breach" your skin, so that you can feel the shock and the current can travel through the body parts (50V and more).
6.Frequency does matter on the lethality. Don't mix up direct current and alternating current.
7.A standard 20kV flyback (AC in B&W televisions, DC in modern TV's and monitors) does NOT output more than 5mA when driven by standard means.
If you want to argue even more, especially on high-voltage high-frequency currents and their lethality, do so. You'll be slapped with proves so fast that your head will spin.
I have the required knowledge to build these things, and I already knew all the warnings. Period.
Regards
inflater
