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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #31 16056981
    zybex
    Helpful for users
    Well, maybe some others found on the web.

    Electric shepherd - how to do?

    Electric shepherd - how to do?
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  • #32 16057846
    _jta_
    Electronics specialist
    Hmm ... in the second scheme, a 90W transformer, it probably should be 5A diodes (BYP680, not 660) with a large heat sink. But why so much power to power a shepherd?
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  • #33 16058105
    zybex
    Helpful for users
    Perhaps the one who drew the diagram had such a transformer "at hand". :D
    It could be similar with BYP660 diodes. If you were to find the source from which someone drew (or modeled himself) it would be a little clearer.
  • #34 16063929
    klamocik
    Level 36  
    I would not stick to the transformer, only the resistance value R1 repeated for some time, why so high currents in the control and tell the predecessor that this resistance warms up should start from 10K and choose a capacitor.
  • #35 16064745
    _jta_
    Electronics specialist
    I don't see anyone writing about R1 here.
  • #36 16067690
    klamocik
    Level 36  
    _jta_ wrote:
    I don't see anyone writing about R1 here.
    Post 31 schema second.
  • #37 16068161
    _jta_
    Electronics specialist
    If R1 is larger, BDY25's on time will be longer. And this one should be matched to the parameters of the coil and the supply voltage.
  • #38 16632425
    rafi2431
    Level 12  
    Zygaqra wrote:
    Here is a diagram of a "simple" circuit without this "555 module". The first transformer should be cup type, but on the core from the impulse power supply it should also work. Electric shepherd - how to do? Electric shepherd - how to do? If the dog is kicking too much, you can slightly reduce the condenser in the red circle.



    And the second one, how to wind up ??
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  • #39 16635864
    Zygaqra
    Level 35  
    Probably the easiest way is to use either an ignition coil from a car or a motorcycle or a high voltage transformer from an old TV or monitor (CRT) about 1000-2000w of the thinnest wire (0.1mm).
  • #40 16635916
    rafi2431
    Level 12  
    Zygaqra wrote:
    Probably the easiest way is to use either an ignition coil from a car or a motorcycle or a high voltage transformer from an old TV or monitor (CRT) about 1000-2000w of the thinnest wire (0.1mm).


    Cup core or transformer with ferrite core ??
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  • #41 16636222
    Zygaqra
    Level 35  
    rafi2431 wrote:
    And the second one, how to wind up ??
    for me, the second one is tr2 and the entry above refers to it. The cup should also work.
  • #42 16636399
    rafi2431
    Level 12  
    Zygaqra wrote:
    rafi2431 wrote:
    And the second one is how to wind up ??
    for me, the second one is tr2 and the entry above refers to it. The cup should also work.


    What voltage is the best to power this energizer? It can be from a 12V battery? And can this neon bulb on the secondary winding be, for example, from a switch with backlight or from a power strip?
  • #43 16639294
    Zygaqra
    Level 35  
    rafi2431 wrote:
    this neon bulb on the secondary winding can be, for example, from a switch with backlight or from a power strip ??
    to be precise, not a neon bulb, but a lamp. It can be any, it can also not be at all. Its role is to signal the operation of the device and the moment of the flash corresponds to the high voltage pulse at the output of the device. I don't remember exactly, but it seems to me that the device was designed to be powered with 6V. at a voltage of 4-4.5V, it is still very stable, the current consumption is around 40mA. I don't know if the transistor will withstand 12V. Certainly in terms of voltage, but if the power will not exceed its capabilities, I do not know. I am of course considering the BC211 transistor. This transistor or equivalent is cheap, so failure will cost you little ;-)
  • #44 16639515
    rafi2431
    Level 12  
    Thank you for all the suggestions. Regards ?

Topic summary

The discussion revolves around building an electric shepherd dog deterrent using simple electronic components powered by a 12V car battery. Users share various circuit diagrams and components, including high voltage coils, capacitors, and the NE555 timer, which can be replaced with other components from an ATX power supply. Suggestions include using ignition coils or transformers to achieve the necessary high voltage (up to 10kV) for effective deterrence without harming the dog. The importance of pulse frequency and energy consumption is emphasized, with recommendations for adjusting parameters to ensure the device is effective yet safe. Additional insights include alternative methods and historical references to similar devices.
Summary generated by the language model.
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