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Thread: Bedini Tesla Switch DvD Questions.

  1. #21
    Hi all,

    I've build the tesla switch and did some measurements with the oscilloscope and when I measure from the minus off bat 2 to the + off bat 3 or from the - bat 4 and + bat 1 I get a steady peak of 34V (used 4 gel batterys 12V, 7Ah) and then approximatly 30mSec the signal is influenced by the 50hz (grid freqeuncy) polution and then it's flattened until the puls goes down. In attachement the blue signal is 50hz polution measured with wire hanging on channel 2 of scope. I also noticed a small fase shift between the influenced part off the puls and the polution measurement and on the polution signal I get a peak everytime the pulse goes high.
    Could it be that the current starts to flow the moment the signal is flattened? Are is 30ms way to long?
    I want to mention I have only basic knowledge off electronics and like all other people here on the forum want to learn about the Bedini Tesla switch, so if the measurement done is completly wrong please forgive me.

    014_ch1_and2_together.jpg

  2. #22
    John explains how and why the Tesla Switch works on the DvD. Tom gave a good explanation as well. It is pulses that are quick enough to only allow the voltage to pass causing a difference in potential. You want to block the current from moving around the Tesla Switch. The DvD explains this.

    -Altrez

  3. #23

    Thumbs up

    Quote Originally Posted by Nityesh Schnaderbeck View Post
    Good to see you here John_Koorn, I would be very interested in your progress, I have been building a tesla switch too, I have built tesla switch's about 6 times. One time I wound a fan motor with multi-strand litz wire and used 6 strands to trigger the 6 transistors, and the AC output to drive the fan, while the fan done it's own switching via the 6 trigger strands the fan worked quite well and done good rpm, and I got 50/50 pulse width.

    Here is my latest tesla switch build.



    Tom_C do all 6 of the MJL21194's transistors all need to be matched?.
    Nice looking build! Whats the cap for?


    -Altrez

  4. #24
    Hello Altrez,
    I can't combine that theory with wich John states in the movie that slow changing gives more charging
    You want to change it a slow as possible
    If the theory is correct then you have to pulsate it as quick as possible. When I read the book of Tom Bearden, the theory explained here on the forum is indeed what's needed (short pulsing), but it seems that there is also a component of waiting between charging and dumping.
    I don't know if it whas in this chapter or other of the dvd series,but somewhere is stated that,
    you give a pulse, you wait and steel the surface charge
    I'm not an expert but I build the plasma iginition of Aaron Murakami where a diode is not blocking a voltage from another source until voltage on cathode is higher then on the anode and as long it is not the case the diode is an open path and that's for sure because it workes. So I can find the fast puls in the led's that are in blocking mode, but I can't find "the waiting to steel the surface charge. Everything points to fast as possible but John states in the movie 'you want to change it as slow as possible for the best charge', but if I look to the scope images and that peak is the surface charge, the taking of the surface charge comes way beyond the existens of it and the slower you go the less you gonna get.
    I will have another look on the dvd's

  5. #25
    Quote Originally Posted by bruno View Post
    Hello Altrez,
    I can't combine that theory with wich John states in the movie that slow changing gives more charging
    If the theory is correct then you have to pulsate it as quick as possible. When I read the book of Tom Bearden, the theory explained here on the forum is indeed what's needed (short pulsing), but it seems that there is also a component of waiting between charging and dumping.
    I don't know if it whas in this chapter or other of the dvd series,but somewhere is stated that,
    I'm not an expert but I build the plasma iginition of Aaron Murakami where a diode is not blocking a voltage from another source until voltage on cathode is higher then on the anode and as long it is not the case the diode is an open path and that's for sure because it workes. So I can find the fast puls in the led's that are in blocking mode, but I can't find "the waiting to steel the surface charge. Everything points to fast as possible but John states in the movie 'you want to change it as slow as possible for the best charge', but if I look to the scope images and that peak is the surface charge, the taking of the surface charge comes way beyond the existens of it and the slower you go the less you gonna get.
    I will have another look on the dvd's
    Mr. Bruno,

    If you watch the pendulum swing it all makes a lot more sense. The rest time that is.

    -Altrez

  6. #26
    Quote Originally Posted by Altrez View Post
    John explains how and why the Tesla Switch works on the DvD. Tom gave a good explanation as well. It is pulses that are quick enough to only allow the voltage to pass causing a difference in potential. You want to block the current from moving around the Tesla Switch. The DvD explains this.

    -Altrez
    Altrez,

    1) Please explain how the current is blocked in the Tesla Switch?

    2) John shows the Tesla Switch oscillating (switching) at 7Hz. So does switching need to be fast?

    3) The Tesla Switch can be divided into two sides as it is an oscillator..."A" and "B" side. When the "A" side is switched on by the 3 transistors the batteries are put in series for a total voltage of 24 volts, at the same time "B" side is has no switching taking place and the batteries remain in parallel at 12 volts. When switching is done, whether at a fast or slow switching speed, the circuit now transitions to the other side which is side "B" and turns on those three transistors and now the "B" side batteries will now have 24 volts across them and "A" side is now in parallel for a total of 12 volts. That is one complete cycle. So simply... What causes the difference of potential (voltage)?



    -Dave Wing

  7. #27
    Senior Member Tom C's Avatar
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    you guys are on the right track, its about voltage not current.... we want no current in the circuit or as little as possible. Dave's reference to Bearden is right on, nityesh I have never heard it described exactly like this, but its a perfect explaination in my mind.

    the speed and duration if the pulse is set based on the 50 50 cycle of the 3524.... the original T/S had a run and a charge switch, power the load for a while, then turn off the load and let the batteries recharge, then power the load. so the T/S needs to have a rest period to restore itself, then run again. it wont stay running if you use the potential continuously. with no load you should be able to get them all fully charged, get the duty cycle and pulse width right it should work correctly.

    Tom C


    experimental Kits, chargers and solar trackers

  8. #28
    Senior Member Tom C's Avatar
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    @Bruno,

    if you want to power a load the switching needs to be fast enough to provide a "non pulsed" power curve to the load. you need to switch fast enough to get a decent amount of voltage across the load points. when in charging mode you need to find the pulse duration that the power sources like, it will be different for every battery AND voltage you run at. slow is a relative term, we know it is a 50/50 cycle but is a matter of the width of the pulse, if the pulse is too wide then current flows and you lose the Dipole

    Tom C


    experimental Kits, chargers and solar trackers

  9. #29
    @Tom C
    Thank you for the information, didn't know that also the voltage is of importance.
    Do you measure the current (which offcourse need to be hold at zero) or is there another way to know that the frequency is correct?
    At the moment I want to focus only on the charging mode because at the moment my batteries are not charging even with no load.
    I'm a confused about 50/50 cycle, I think on 2 possibility's:
    1) the duration of 0 degree puls = duration of 180 degree puls (the pulses generated from the circuit as shown on dvd)
    2) if the optimal 0 puls duration is 10ms you have to wait 10ms before switching to 180 degree puls. (is this what John ment on the dvd when he said that the SG3524 components could need to be changed to create the necessary puls)
    This is because you speak of the fact that it's different for every battery, so I think that there could be a difference in the duration of the 0 and 180 degree puls.
    I'm sorry if I make it more complex then it should be, but the words "you give a puls, you wait and then steel the surface charge" keep comming in my mind and it is only possible if you have option 2 above.

  10. #30
    Senior Member Tom C's Avatar
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    why do you have to wait 10 milliseconds before the other side pulses? don't think of it as a cycle in terms of degrees, it should be 10 milliseconds left pair 10 milliseconds right pair, why do you need a pause between switching that sounds like, 10 MS pulse, 10 MS pause, then a 10 MS pulse and a 10 MS pause, this puts the switch well below 50/50 there should be no pause between the sides. or are you talking about 10 MS on off on off on off each side? just confusing myself I think

    are you using schottky diodes?

    Tom C
    Last edited by Tom C; 12-24-2014 at 10:25 PM.


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