Path: utzoo!attcan!uunet!samsung!zaphod.mps.ohio-state.edu!mips!prls!pyramid!ntc!chris
From: chris@ntc.UUCP (chris winter)
Newsgroups: sci.electronics
Subject: How to detect current flow
Keywords: current voltage powerline solid-state
Message-ID: <305@ntc.UUCP>
Date: 12 Apr 90 01:30:15 GMT
Organization: Nixdorf Technology Center, Santa Clara, CA
Lines: 21

I need to be able to detect whether or not a device powered by  
household 110V supply is active or not.
I do not want to use the obvious solution of wiring a relay or 
solenoid into the circuit because of 
   a) the size of the components and 
   b) the physical nature of the devices.

Ideally what I want is a small solid-state device that detects current 
flow in the cable. 

Can anybody help me or direct me to a source of knowledge on the subject.

Many thanks in advance.

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