Re: Slaved power control 'current transformer'

[Chris Hunter <cjhunter@xxxxxxxxxxxx>]

'wonder if some loops of wire, around the cable to the cooker,
connected to an (eg: Idratek) analogue inpit device would work - via
a simple rectifier & smoothing circuit, say ???

Chris


On 21 Aug 2007, at 07:51, Stuart Meier wrote:

> I want to detect power starting to flow in one circuit, to trigger
> a second.
> EG, if any power is drawn by the electric cooker, the hood fan starts.
> Direct connection is out for various reasons - the detection has to be
> electrically isolated.
>
> It requires a so 'called current transformer', but I can't find a
> supply of
> one, apart from in those extension leads with a 'master switch'. I
> guess
> could tear the guts out of one, but a supplier must exist. I could
> build one
> from scratch (op amps etc), but want to avoid the hastle.
>
> Any suggestions?
>
> Stuart
>
>
>
>
>
>