tag:blogger.com,1999:blog-3218008772058347246.post3949054100238711244..comments2024-03-21T09:32:41.471+02:00Comments on Robert Gawron: 9V/1kV DC/DC converterUnknownnoreply@blogger.comBlogger4125tag:blogger.com,1999:blog-3218008772058347246.post-89924838605924563612016-07-21T17:29:06.895+03:002016-07-21T17:29:06.895+03:00I have a device I bought from Home Depot that allo...I have a device I bought from Home Depot that allows you to zap rats. It only take 4 AA batteries. They enter, eat some peanut butter and it zaps them. The LED turns from green to red to indicate that you got one. These are around $45. What kind of circuit do you think this uses? I could tear it apart but I don't want to. Do you think the circuit would be lethal to humans and how could I modify your design to make a similar circuit to what they probably use?Salman Sheikhhttps://www.blogger.com/profile/10359512071566687692noreply@blogger.comtag:blogger.com,1999:blog-3218008772058347246.post-82403572558944969022016-04-08T10:40:03.326+03:002016-04-08T10:40:03.326+03:00Hi. I will not comment the circuit, just the task....Hi. I will not comment the circuit, just the task. <br /><br />I have had a long waiting idea similar to yours, but it was not devised as a trap for roaming insects, but as a protective barrier for e.g. furniture or doorways. After all, I don't have anything against little buggers as long as they don't foul my food, dishware, clothings and body. Besides, their cleverness then works for you instead of against you: they will learn to avoid places where you specifically especially don't want them!<br /><br />Therefore I suggest you to make your concept geometry such that it achieves easily defined goals: prevent cockroaches from crossing certain lines, like passing between rooms A and B, entering a cabinet, climbing the legs of the table to access the table top or (in case of bedbugs) bed surface. Orient your active surfaces in such a way that they can't give shock to people or pets, e.g for doorways and other long barriers place tracks inside gaps too wide for insects to cross, but too narrow for fingers or animal tongue (you don't keep anteaters for pets?), and for tables and beds put tracks on ring plates encircling furniture legs, tracks facing downwards, with neutral ring being the outermost one. <br /><br />Another thing, from the video it seems your bugs are not zapped instantly, they perhaps suffer for a prolonged time. I wonder if a higher voltage peak would kill them instantly? If the resistance of their, quite thin, extremities is high (and I suppose that chitin which makes their exoskeletons is mostly a dielectric) you certainly would need more voltage to achieve amount of current surge lethal to them.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3218008772058347246.post-89651900656642451142016-04-05T15:58:28.530+03:002016-04-05T15:58:28.530+03:00Cool project!!Cool project!!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3218008772058347246.post-80100271724620416622016-04-05T15:42:52.371+03:002016-04-05T15:42:52.371+03:00Very robust circuit, but no feedback loop - voltag...Very robust circuit, but no feedback loop - voltage will go up and down. Anonymousnoreply@blogger.com