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'[EE]: time delay for AC motor start'
|>>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).
Spehro Pefhany --"it's the network..." "The Journey is the reward"
interlog.com Info for manufacturers: speffhttp://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
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