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Thread: A few newbie questions.

  1. #1
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    A few newbie questions.

    Hi all. Sorry for my disgusting English. I use the Google for the translation. I built my first SSG. And some weeks I test it.
    My first board:P1070355.jpg
    Now I built another one:P1070351.jpg
    Device overview:P1070354.jpg
    For the manufacture of coil, I used a wire 21AWG (0,72 mm) and 20AWG (0.8 mm), of 900 turns each. The core of the transformer plates. P1070228.jpg I did not find the recommended electrodes in our country. I could not find the right bulb for the resistance on the basis of the transistor. So I did without her. Maximum speed with minimum amps I have received during 1694 ohms. Max 162 rpm at input 0.075 amps, 0.030 amps output. But these parameters change during charging. At the start of charging parameters such 142 rpm, input 0.085 amps, output 0.040 amps. When raising the voltage on a rechargeable battery to about 14.5 volts, the parameters are changed to 162 rpm at input 0.075 amps, 0.030 amps output. Is it ok? And what settings do I use the calculator SSG at the table?

    P.S. Is there anyone else from Russia in the forum? I'm afraid I can not understand many things without knowing the language.

  2. #2
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    I'm sorry, I'm very bad written all? Or a very stupid question?

  3. #3
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    I've done something wrong? Why is not anyone answering?

  4. #4
    Senior Member John_Koorn's Avatar
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    Hi kingstingtin,

    I can't see much wrong with your setup. What you described is normal. You could try and see if the RPM increases by decreasing the base resistance a little. You should be around 120mA draw current.


    John K.

  5. #5
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    Hi John K.
    Thank you very much for your reply. Now I found another oddity. My device consumes electricity even when it stops. I thought that the magnets are positioned correctly. Or improper gap between the magnets and the core. I began to experiment with the size of the gap. But still consuming electricity without interruption. Then I took the wheel at all. But the current is not reduced. I recorded a video about it (IMAG0095 - YouTube). It is in Russian, but I think will be the meaning is clear. I suspect that something is not working correctly.

  6. #6
    hi,

    If your circuit is drawing current when the wheel is stopped it is usually one of two things.

    A) a fault in the circuit layout or a faulty component.

    Or

    B) the base resistance is too high and the unit is self triggering or self oscillating. Essentially a solid state device.

    In your case you are probably looking at B) Try lowering your base resistance and see if it stops. Usually anything over 1.5k ohms can do this.

    Good work

    Regards

  7. #7
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    Hello Ren.
    Thank you for the clarification.
    When I was looking for optimal mode of the generator, I started with a 200 ohm on the base. And only at 1698 ohms, it showed the highest turnover, with minimal amps. I apologize for the stupid question: but then why do I use the wheel? Or without wheels, the device will not work properly? I noticed that without the wheel, the device has to charge faster and uses a little more amps (~100mA).

  8. #8
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    Can I use the device without the wheels to continue experimentation?

  9. #9
    Senior Member John_Koorn's Avatar
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    kingstingtin, you can do what ever you want to do. But there is something about using a rotating wheel with magnets on it that for some reason gives better results than the solid state oscillator. I don't fully understandd why yet.

    John K.

  10. #10
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    Thank you, John. Without the wheel, I noticed that the charge was faster. And the battery continues to gain capacity. And yet, I noticed a strange behavior voltage charge the battery for charging. When I stopped the charge of 14.5 volts, the battery gradually decreased. But when I was to continue on to charge the battery. The voltage across it first grew to 16 volts, and then decreased to 14.7 volts, and then remained at this value. And the battery started to grow. Is this normal?

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