Can someone explain the differences between these two circuits?

Discussion in 'General Electronics Chat' started by BenBRockN, Jun 27, 2016.

  1. BenBRockN

    Thread Starter New Member

    Jun 26, 2016
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    Hello,

    I've had 3 year of electronics and always dabbled with circuits and the like, but I generally get confused with circuits that utilize transistors and transformers. These two circuits intrigue me, but I can't seem to figure out how current flows in each circuit (including back emf).

    One is called a "joule ringer", the other a "slayer exciter". I successfully created the joule ringer, except I used a C9014 transistor and it can only be on for a few seconds before it gets too hot. I used a 2n3055 as it mentioned, but it wouldn't even light a small bulb (that's probably due to my poor transformer design, it was 15T primary, 203T secondary on a 3/4 steel bolt).

    Super Joule Ringer:
    SuperJoule3 - Edit.jpg

    Slayer Exciter:
    SE_my_design.png

    So, here are my questions:

    (1) What is the difference in operation between these two circuits?
    (2) How does current flow in each circuit (including back-emf)?
    (3) Which circuit is more power efficient (assuming both run on a 9V battery)?
    (4) People have mentioned that you should "tune" both circuits, how do you do that?


    Thanks,

    - Ben
     
  2. Sensacell

    Well-Known Member

    Jun 19, 2012
    1,133
    267
    I'ts not at all clear what you ultimate goal is here.

    Are you tying to light a bulb- or what?

    I cannot possibly evaluate any of this based on what you have provided.
     
  3. BenBRockN

    Thread Starter New Member

    Jun 26, 2016
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    Yes, a CFL bulb, whatever the equivalent to a 40W incandescent bulb (the wattage doesn't really matter since both circuits can power much higher wattage bulbs with the right transformer and tuning)
     
  4. BenBRockN

    Thread Starter New Member

    Jun 26, 2016
    10
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    For both circuits, I've seen homemade transformers made from an iron core, such as iron pipe, where the thinner secondary is wound first, and then the thicker primary is wound on top of that, in the same direction and spiral as the secondary. That is how I built my first transformer (step up), and I successfully got the joule ringer to work with a small dc motor and a small 3V incandescent bulb, both operated at near peak power without burning out either one. My first transformer was weak, 15T to 203T, I intend on making a better one, possibly 10T to 1200T (for the slayer circuit using copper pipe and magnet wire) and 170T to >500T (for the joule ringer, using magnet wire and maybe 14G wire).
     
  5. AnalogKid

    Distinguished Member

    Aug 1, 2013
    4,546
    1,252
    Pretty sure the wattage matters a lot.

    ak
     
  6. BenBRockN

    Thread Starter New Member

    Jun 26, 2016
    10
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    When read in context, I was talking about how I wanted to use light bulbs saying that the equivalent wattage of the bulb doesn't matter, not the wattage of the system. I know the wattage of the system matters.
     
  7. BenBRockN

    Thread Starter New Member

    Jun 26, 2016
    10
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    Actually, I think I have a 555 from an old circuit board, I've never used it though, how would I hook that up?
     
  8. dante_clericuzzio

    Member

    Mar 28, 2016
    60
    2
    Follow the schematic as in this video and by the way you see the transformer is a modified one from a faulty flourescence bulb add another 36 turns as primary

     
  9. BenBRockN

    Thread Starter New Member

    Jun 26, 2016
    10
    0
    So far, no one has explained how current flows (including back-emf) in these circuits, can someone help out on that?
     
  10. BenBRockN

    Thread Starter New Member

    Jun 26, 2016
    10
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    UPDATE / HELP !!!:

    So I created the Slayer Exciter Circuit, but it did not work. I tried everything from switching the Primary coil leads, switching the Base/Emitter leads, switching the LED to make sure it is in the correct direction (Never lit up either way), also replaced the LED with a Diode. I tried it with a c9014 NPN transistor (got extremely hot, very quickly), I tried it with a 2222A NPN transistor (got extremely hot, very quickly), and also my 2n3055 NPN power transistor. Nothing worked!! My primary and secondary are also correctly wound (4T primary, 753T secondary, and they are wound in opposite directions). I really don't understand what is wrong. I tested voltages across the circuit and got these measurements, can someone suggest what is wrong?
    SE_my_design2.png
    Voltages.PNG
    My_Coil.jpg

    Thanks,
    - Ben
     
  11. BenBRockN

    Thread Starter New Member

    Jun 26, 2016
    10
    0
    These were my voltages (in the chart). I got 0 VDC on both the Primary and Secondary windings, I don't understand why. I even checked for AC and got 0V as well on EVERY component. So I assume it is not oscillating, but it's driving me mad as to why not. What's crazy is that any transistor I hook up, it gets hot, so I know voltage/current is going through it. The low-power transistors get dangerously hot so I stop the circuit. My higher-power 2n3055 transistor will get pretty hot, but I've only ran it for maybe 10 seconds max.

    [​IMG]
     
  12. BenBRockN

    Thread Starter New Member

    Jun 26, 2016
    10
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    I just checked all of the connections with my multimeter, all are correct and all of them are closed. It's not the primary, I've switched it several times. The LED works and lights up when checked outside the circuit. I checked it again with the 2n2222A transistor I have, all it does is get so hot it burns you and I have to turn the circuit off after 3 seconds, else it will melt/catch fire. Does the primary have to be tuned to the secondary? Is that why it is not oscillating? I read this quote from this site (http://www.instructables.com/id/SLAYER-EXCITERS-TESLA-COILS-everything-you-need-to/) that said:
    So I'm working on trying to turn the primary using JavaTC, but it still didn't work.
    dfdf
     
  13. BenBRockN

    Thread Starter New Member

    Jun 26, 2016
    10
    0
    secondary reads 0 volts, primary reads 0 volts
     
  14. Techno Tronix

    Member

    Jan 10, 2015
    140
    10
    Super Joule Ringer is a self-oscillating voltage booster and it use all of the energy in a single-cell electric battery where Slayer Exciter is comparatively low power efficient.
     
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