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Sonsivri > Electronics > Hardware and Tools (Moderator: bbarney) > Voltage detector
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ZoranM
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« on: February 23, 2007, 05:26:28 05:26 »
Hi,

have any a schematic for voltage detector from 12 V to 230 V AC / DC ? Output to Relais or Optocapler.
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chandra2sekhar2000
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« Reply #1 on: February 23, 2007, 11:48:29 11:48 »
HI ZORANM,
U CAN USE ANY COMPARATOR USING OPAMP WITH A FIXED REFERENCE POINT.THEN THE OUTPUT OF OPAMP SHOULD BE CONNECTED TO  OPTOCOUPLER,TRANSISTOR ,ETC...
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ZoranM
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« Reply #2 on: February 23, 2007, 09:23:59 21:23 »
hello chandra2sekhar2000

thanks for help
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