Re: Of Mice and HV (fwd)

["High Voltage list" <hvlist@xxxxxxxxxx>]

Original poster: Steven Roys <sroys@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Fri, 5 May 2006 09:37:51 +1200
From: m.j.watts@xxxxxxxxxxxx
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Of Mice and HV (fwd)

On 3 May 2006, at 7:48, High Voltage list wrote:

> Original poster: Steven Roys <sroys@xxxxxxxxxx>
> 
> 
> 
> ---------- Forwarded message ----------
> Date: Sun, 30 Apr 2006 21:01:57 +0930
> From: Matthew Smith <matt@xxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>
> Subject: Re: Of Mice and HV (fwd)
> 
> Thank you all for the comments/suggestions on this topic.  I need
> something portable and fairly safe, since we have dogs in the house.
> 
> Something battery (NiMH) operated with a capacitor discharge, all driven
> by a microcontroller is the ultimate aim.  uC does the PWM to charge the
> cap, and keep it charged (using model with built-in A to D to maintain
> within suitable voltage range); also fires SCR.  Will probably run of 4x
> AA NiMH, as I should be able to run the uC without regulation.

A simple inverter is all that's needed. Why complicate matters by 
using x000 transistors and software *plus* a transistor when one 
transistor will do it? If a uC has to be part of the mix you might use 
it to monitor the ideal time to begin charging the capacitor Some 
kind of animal proximity detector (and perhaps dog discriminator ;)

Malcolm 

> For the time being, I have rigged a simple device, whereby the mouse has
> to climb over two wires to get to the bait.  I've left it in my office,
> along with a few conventional traps, as I've had the vermin running
> around the floor whilst I've been sitting in here.
> 
> Image for those with decent Internet connections:
> <http://www.smiffysplace.com/img/mouse_zapper1.jpg>
> Image for those with slower (dial-up) Internet connections:
> <http://www.smiffysplace.com/img/mouse_zapper1_640.jpg>
> 
> Bait is a mixture of peanut butter and Lindt chocolate (we're not
> spoiling the mice, they'd already nibbled it in my wife's handbag).
> 
> Box is seen without lid.  Wires are supported on a pair of silicone
> corks.  Box has removable panels at either end, which is handy.
> 
> Now to wait and see!
> 
> Cheers
> 
> M
> 
> 
> -- 
> Matthew Smith
> IT Consultancy & Web Application Development
> Home: http://www.smiffysplace.com
> Web Log: http://www.smiffysplace.com/blog
> Work: http://www.kbc.net.au
> 
> 
> 
>