Hi guys; hope you have a Happy New year;
i have here a dehumidifier air purifier that i found almost new that i would like to use in the bad room.but there is a drawback it makes too much noise even on low speed for me that i can't go sleep,it has a switch with speed 1 and 2 and off,
is there a way i can reduce by half the lower speed,i was thinking of putting a resistor but i don't know how much ohms i should use,
i have here an example see link;but this is for 12v fan,i need for 120v fan.
any suggestion would be appreciated,thanks.
http://www.pcbheaven.com/circuitpage..._DC_Fan_Speed/
i have here a dehumidifier air purifier that i found almost new that i would like to use in the bad room.but there is a drawback it makes too much noise even on low speed for me that i can't go sleep,it has a switch with speed 1 and 2 and off,
is there a way i can reduce by half the lower speed,i was thinking of putting a resistor but i don't know how much ohms i should use,
i have here an example see link;but this is for 12v fan,i need for 120v fan.
any suggestion would be appreciated,thanks.
http://www.pcbheaven.com/circuitpage..._DC_Fan_Speed/