Electronics > Beginners
Where can I find circuit for electronic rat trap?
Greorge:
Would I have better luck asking for plans for electronic Fly Zapper?
nickn4:
--- Quote from: Greorge on June 18, 2015, 11:00:53 am ---Would I have better luck asking for plans for electronic Fly Zapper?
--- End quote ---
this seriously concerns me about the purpose of what you are trying to build.
by saying this you showed us the high voltage schematic is not meant for extermination of rats...
just so you know, we don't want to be involved in helping you make some kind of Tazer..
please stop
Zero999:
The circuit will be pretty similar to a stun gun but may deliver a larger pulse of energy to ensure a humane kill.
For educational purposes only.
The two most common ways of doing this both involve a flyback transformer to generate a high voltage.
Here's the simplist way to do this with a blocking oscillator:
http://www.powerlabs.org/flybackdriver.htm
Unfortunately, it's difficult to achieve such a large increase in voltage in one stage so either one of the following are used after the flyback circuit:
1) A voltage multiplier
The one in the schematic above uses a Royer converter to drive the flyback transformer to generate a sinewave. The voltage multiplier circuit charges the capacitors in parallel and they're connected in series to the output. It produces a DC voltage. If the capacitors are never allowed to charge, the current will be tiny and will probably not be high enough to ensure death.
http://www.hardhack.org.au/book/export/html/104
2) Another flyback transformer stage:
In the schematic above, the first flyback oscillator works by cutting the current to the transformer when the current exceeds the value set by the 75mOhm resistor and the BJTs base voltage. The second flyback is driven by a relaxation oscillator which fires the SCR every time the 2.2µF capacitor charges up enough to cause the neon lamp in series with the SCR's gate to turn on. It produces high voltage pulses.
http://danyk.cz/paral_en.html
There is much more to this than just knowing the schematics. Building a high voltage circuit is difficult because careful attention needs to be paid to the layout and to insulate everything properly, otherwise it will all arc over.
Greorge:
Thought Police, you stop it !
I want to make electronic mouse trap that is capable of taking out rats too.
Hero999, thank you for your post.
In a meantime watched video where UK fellow connected 10 transformers and got up to about 1000V, but arrangement looked bit strange.
helius:
You expected the thought police, but what you got is
http://www.youtu.be/0359hSerDeE
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