i need a switch that automatically turns on a 220 volt when computer get turn on

neverthought · Jul 8, 2010

hi guys
i strand in a situation
a computer turns on automatically and i need to run an 220 volt fan when its turns on
fan can not run constantly
i want to know if anyone knows a circuit that switch fan on when computer turns on an switch off when computer shut down automatically
thanks

Boncuk · Jul 8, 2010

Use a suitable 12V relay and switch 220V via that using a HDD or floppy disk drive power connector. (yellow=+12V, black=ground, red=+5V)

Those connectors are only powered when the PC is active.

Boncuk

MikeMl · Jul 8, 2010

Try **broken link removed**.

BrownOut · Jul 8, 2010

MikeMl said:
Try **broken link removed**.

I think the link is corrupted.

MikeMl · Jul 8, 2010

BrownOut said:
I think the link is corrupted.

Try this one. I have one of these. It works great. It powers my printer, scanner, external hard drive, speakers, lamp and a table radio.

i need a switch that automatically turns on a 220 volt when computer get turn on

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