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'[EE]: time delay for AC motor start'
2002\09\30@094955 by Micro Eng

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Just use a solid state one-shot....Artisan has several good ones for this.


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2002\09\30@100044 by Spehro Pefhany

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>>For a product with 2 AC motors powered by a single switch, any
>>suggestions for a cheap & reliable way to delay the start of one of
>>the motors by 1/2 to 1 second?
>>Because it's AC, an RC delay won't work.  Also looking for a switch
>>that has an intermediate position that starts the first motor, but the
>>switch won't stay there - either returns to off or to the full on
>>position.  Haven't found one yet.  It would be cleaner to just have a
>>normal on/off switch and do the delay "internally".
>>Thanks for any help.

You *could* use a PIC to do this with a regular 3-position switch.
Even with a transformer-based supply it wouldn't be that expensive,
in quantity, to use an 8-pin PIC and a DC relay (or two).

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
EraseMEspeffspam_OUTspamTakeThisOuTinterlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

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