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  • tswift
    replied
    Originally posted by dragon View Post
    You could use an SCR in the same configuration at almost any amperage needed... also, the SSR's are quite inexpensive with large amp capacities
    I think maybe you're thinking of a crowbar circuit, which looks very similar. I haven't actually rigged up either circuit to test it, but I think with the SCR it will just gate on into full conduction and not turn off or proportion at all. Using a bipolar transistor it will act like a bigger, more powerful zener diode. If the voltage rises enough so current starts flowing into the transistor base, it will turn on just enough to reduce the voltage back down to right around the zener threshold. It will also dynamically adjust with the external load applied to the circuit. For instance, if the secondary is producing 30A of current but only 2A are needed to drive the HVM for looping, the other 28A net gain will charge the battery or cap bank. Once the bank voltage reaches the 12V zener threshold plus the 0.7 diode drop of the transistor base p-n junction, gate current will begin to flow and the transistor will conduct. Since the current gain of a big, slow power transistor like a 2N3055 is very low, the base current might be as much as 1/10 of the emitter current. In other words, something like nearly 3A will pass through the zener and the other nearly 30A will go through the transistor. The zener will have to be appropriately rated and more likely using a darlington pair for the pass transistor might be a good idea, perhaps a 2N3904 or some cheap readily available PNP transistor could be used. Hmm, actually those aren't good for 3A of current either, perhaps just a 2955 would be the simplest solution. I like to design with the simplest, cheapest, most commonly available parts.

    N.B. I know this is in-depth and there are a lot of experienced experimenters here, I don't want to sound pedantic. I want to include enough technical details for those who are learning and might benefit.
    Anyway, if an external load of 10A is applied, the zener/transistor combination will almost instantly go from passing 28A of current to passing just 18A of current, and go back again if the load is removed. The 12.7V voltage will change just a teeny tiny amount because of the zener characteristic curve and the transistor current gain. It's just a shunt regulator with a dump load instead of the more common series regulator. It's also a really easy way to measure the excess power being produced, because all you have to do is put an ammeter on the shunt regulator to measure the exact amount of excess power gain above what it is required to run the HVM. Measuring the power at DC is much easier to do accurately than to try and make accurate power measurements at HF/HV. Perhaps it's easier to show than tell, I'll try to get an initial version wired up soon. Also, whether the transistor alone is the dissipation element or additional resistors are used, a lot of heat is going to be generated. The maximum ratings of a 2N3055 are 15A collector current and 115W. Hmm, ok so you'd essentially have to make individual units with one transistor for 10A at 12V, or 15A if you use some resistors to help it. Dissipating nearly 120W continuously is going to require a big heatsink and possibly active cooling with a fan to keep the heatsink requirements more moderate.

    Sorry if all this is off-topic, I don't want to derail the discussion. I had done some research and design into the shunt regulator because I didn't want to blow my $50 cap bank and have to replace it because of excess power in the event some shows up! The little balancing circuit on the back of the PC board connecting the 6 caps has some little surface mount resistors, but no way are those going to be able to dissipate more than a couple of watts of power. If more current than this is applied to an already full cap bank, those are going to smoke and the caps are going to be destroyed.

    If I didn't also want a way to be able to measure the excess power accurately it might make more sense to use a normal series regulator of some kind. The secondary would drive a diode bridge directly, and that would charge a sizeable smoothing cap rated for the full no-load voltage that could be expected from the secondary. Then something like a 723 regulator IC to drive a pass transistor to reduce it to 12V or whatever is desired. Easy but inefficient if the no-load voltage is significantly higher than 12V.
    Last edited by tswift; 01-30-2017, 02:45 AM.

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  • Wistiti
    replied
    Originally posted by Mwtj View Post
    No cap on secondary at the moment.

    You made the same mistake i did in the beginning.. You mounted Hv-wire in wood.
    Mwtj, Tswift, What have you experienced with wood as the support of the project? Does it conduct the hv?

    What should I use instead?

    thank you!

    Leave a comment:


  • Wistiti
    replied
    Well, I have to find another flyback. Mine seem to not output enough. If someone have a suggestion for another easily available hv source im all ears open. I have another Tv to dismantle...

    Bruce I see in your last schematic you use lithium battery instead of cap... witch kind are them?

    Thank you!

    Leave a comment:


  • dragon
    replied
    You could use an SCR in the same configuration at almost any amperage needed... also, the SSR's are quite inexpensive with large amp capacities
    Last edited by dragon; 01-29-2017, 10:56 PM.

    Leave a comment:


  • tswift
    replied
    Originally posted by Mwtj View Post
    thick solar cable is an option? Almost the same as jumbo speaker wire.
    Do you have a full schematic ? So i can make a nice pcb for it in eagle.
    It's really simple, I pretty much described it. Even the base resistor is essentially optional. External pass resistors would go between the transistor collector and +V, and should be suitable resistance and power dissipation for the application. In this case, at 12V the desired dissipation might be 30A, so Ohm's law means we need 0.4 Ohms resistance and 360W power handling. Of course all the cables and connectors need to handle 30A as well, and the traces on the PCB need to be very beefy and probably solder reinforced.



    Full discussion:
    design - High power equvalient for a zener - Electrical Engineering Stack Exchange

    For even more power dissipation these could be made in single 30A modules, like a brick. Just parallel multiple units to reach the desired dissipation. Designing a PCB for it would be great!

    Leave a comment:


  • Mwtj
    replied
    Originally posted by tswift View Post
    I did some more thinking on scaling up. The present secondary arrangement is completely inadequate to handle heavy currents at 500 KHz frequencies. Something like Litz wire would be optimal (although hard to find and expensive). Good old "super jumbo speaker wire" like Don mentioned a time or two might be a reasonable choice if the voltages in the secondary aren't too high. It's easy to obtain and relatively cheap. I have a small amount of 16 gauge on hand, it's what I've been using for low voltage interconnect wire. 16 gauge would be useful up to maybe 15 amps secondary current, although if my suspicions are correct it's going to get cold, not hot, when loaded down. This could bring its own set of challenges: insulation could get brittle at low temperatures and I expect condensation and even icing could be a problem. One thought I had was to encapsulate the whole unit in something like an aquarium (shades of Kapanadze?) and at least use desiccant, if not evacuate the whole thing. I doubt any normal aquarium could stand a reasonably good vacuum, though. I also have some much heavier duty high-speed diodes on hand, 30A current, 1000V and "ultrafast" speed. The tradeoff is that they have a much larger forward voltage drop than the Schottky diodes, at least 1.0V, probably 1.2V or more at full rated current. To achieve full rated current will require significant heatsinking.

    Since I had the idea that eventually we would be reaching higher power levels, I have designed a shunt regulator arrangement capable of dissipating significant wattage to prevent the cap bank (or batteries) from overcharging. It consists of a 2N3055 transistor with the base driven by a 12V zener diode. If the voltage between the positive and negative rails of the DC output reaches 12.7V (the zener voltage plus the transistor base voltage), the transistor will begin to conduct and waste enough power to keep the voltage from rising further. With a proper heatsink on the 2N3055, it should be able to dissipate at least 50W of continuous power. With external resistors of 0.5 ohm or so it can handle higher power levels because then the transistor itself won't be taking all the heat. I already have some suitable power resistors on order.

    thick solar cable is an option? Almost the same as jumbo speaker wire.
    Do you have a full schematic ? So i can make a nice pcb for it in eagle.
    Last edited by Mwtj; 01-29-2017, 08:45 PM.

    Leave a comment:


  • Alexg800
    replied
    Originally posted by SERG V. View Post
    For experimenters only !!





    Check yourself !!
    Hello,
    I came across on the site

    the post # 10318. The is an interesting circuit, designated as "KOMANDOR". I would like to replicate it for the purpose for Science Experiments. If anybody has already replicated it or obtained the required information
    Please tell me:
    1. What type of wire is used.
    2. How to wind the coils, turn to turn or move.
    3. How are located the coils on the plastic pipe.
    4.Should the capacitor adjusted in resonance or not.
    5. For what the hot end of the Flyback is connected to the load.
    6.Spherule on the secondary, as I understand it is a capacitor, how to choose it.
    I would be grateful for any useful information .

    Leave a comment:


  • tswift
    replied
    I did some more thinking on scaling up. The present secondary arrangement is completely inadequate to handle heavy currents at 500 KHz frequencies. Something like Litz wire would be optimal (although hard to find and expensive). Good old "super jumbo speaker wire" like Don mentioned a time or two might be a reasonable choice if the voltages in the secondary aren't too high. It's easy to obtain and relatively cheap. I have a small amount of 16 gauge on hand, it's what I've been using for low voltage interconnect wire. 16 gauge would be useful up to maybe 15 amps secondary current, although if my suspicions are correct it's going to get cold, not hot, when loaded down. This could bring its own set of challenges: insulation could get brittle at low temperatures and I expect condensation and even icing could be a problem. One thought I had was to encapsulate the whole unit in something like an aquarium (shades of Kapanadze?) and at least use desiccant, if not evacuate the whole thing. I doubt any normal aquarium could stand a reasonably good vacuum, though. I also have some much heavier duty high-speed diodes on hand, 30A current, 1000V and "ultrafast" speed. The tradeoff is that they have a much larger forward voltage drop than the Schottky diodes, at least 1.0V, probably 1.2V or more at full rated current. To achieve full rated current will require significant heatsinking.

    Since I had the idea that eventually we would be reaching higher power levels, I have designed a shunt regulator arrangement capable of dissipating significant wattage to prevent the cap bank (or batteries) from overcharging. It consists of a 2N3055 transistor with the base driven by a 12V zener diode. If the voltage between the positive and negative rails of the DC output reaches 12.7V (the zener voltage plus the transistor base voltage), the transistor will begin to conduct and waste enough power to keep the voltage from rising further. With a proper heatsink on the 2N3055, it should be able to dissipate at least 50W of continuous power. With external resistors of 0.5 ohm or so it can handle higher power levels because then the transistor itself won't be taking all the heat. I already have some suitable power resistors on order.

    Leave a comment:


  • Wistiti
    replied
    Originally posted by radioionics View Post

    OK, enough for the pretense on the circuit. As you have come to realize, tuning isn't necessary. Why? Because the circuit is a radioionics (scalar wave) circuit. It isn't what most are used to seeing. Soon enough a few replicators will be ready to scale up the power capabilities of my unique "mirror circuit." When you are ready to take the next step you must be completely familiar with the low power proof of concept that has been presented so far. One slight mistake could take your life in an instant. If this happens you will be stone cold dead and nothing is going to return your life to you. Use extreme caution when you do reach the next stage. Respect the power!

    Leave a comment:


  • med.3012
    replied
    Originally posted by radioionics View Post

    OK, enough for the pretense on the circuit. As you have come to realize, tuning isn't necessary. Why? Because the circuit is a radioionics (scalar wave) circuit. It isn't what most are used to seeing. Soon enough a few replicators will be ready to scale up the power capabilities of my unique "mirror circuit." When you are ready to take the next step you must be completely familiar with the low power proof of concept that has been presented so far. One slight mistake could take your life in an instant. If this happens you will be stone cold dead and nothing is going to return your life to you. Use extreme caution when you do reach the next stage. Respect the power!
    Thanks for sharing this valuable work, in my opinion tuning is related with the gathered particles , in the case of electromagnetic scalar radiation tuning is a part from the system , bigger charge carrier as example your system need more higher voltage for higher power , the risk of electricity can be minimized with the contribution of more experienced replicator .. when the path is clear minimal risk can be found .

    Leave a comment:


  • tswift
    replied
    Originally posted by radioionics View Post

    OK, enough for the pretense on the circuit. As you have come to realize, tuning isn't necessary. Why? Because the circuit is a radioionics (scalar wave) circuit. It isn't what most are used to seeing. Soon enough a few replicators will be ready to scale up the power capabilities of my unique "mirror circuit." When you are ready to take the next step you must be completely familiar with the low power proof of concept that has been presented so far. One slight mistake could take your life in an instant. If this happens you will be stone cold dead and nothing is going to return your life to you. Use extreme caution when you do reach the next stage. Respect the power!
    This is always the duality with any powerful tool. Power is dangerous: and yet power is useful. Bruce, thank you for sharing with us and helping us understand.

    Leave a comment:


  • radioionics
    replied
    v7.0.0 MIRROR BUILD


    OK, enough for the pretense on the circuit. As you have come to realize, tuning isn't necessary. Why? Because the circuit is a radioionics (scalar wave) circuit. It isn't what most are used to seeing. Soon enough a few replicators will be ready to scale up the power capabilities of my unique "mirror circuit." When you are ready to take the next step you must be completely familiar with the low power proof of concept that has been presented so far. One slight mistake could take your life in an instant. If this happens you will be stone cold dead and nothing is going to return your life to you. Use extreme caution when you do reach the next stage. Respect the power!
    Last edited by radioionics; 01-29-2017, 02:34 PM.

    Leave a comment:


  • RAMSET
    replied
    a whole lot going on

    Paul
    Additional inspiration [see simple video

    Discover Ion Harvesting Technology to power devices sustainably. Explore innovative energy solutions today!


    shared By member boonk at Stefan's forum
    Kapanadze Cousin - DALLY FREE ENERGY

    with gratitude and respect

    Chet K
    Last edited by RAMSET; 01-29-2017, 01:45 PM.

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  • soundiceuk
    replied

    Leave a comment:


  • Wistiti
    replied
    Originally posted by Mwtj View Post
    No cap on secondary at the moment.

    You made the same mistake i did in the beginning.. You mounted Hv-wire in wood.
    bad news! But thanks for the info....
    I think I have to see it by myself before dismantling the PPV...

    Leave a comment:

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