Hi Guys,
First post here, a few times google has sent me here and I figured I'd better take the hint!
Probably a stupid question I know, but I haven't dealt with circuits for awhile, and this may be in the wrong forum, for both I apologize in advance.
Situation: I am designing a controller for a salt water fish tank, through my PC and will be flipping relays to turn on/off various AC voltage items. Some of these are motors (called power heads) that move water in the tank. During start up these will usually CLICK and rattle a few times and I basically want to reduce that. I'm pretty sure it can be done by ramping the voltage up, but haven't been able to find a way to do it with AC voltage.
Can I simply use a resistor and capacitor in an AC circuit to ramp up voltage from off to 110VAC in say 500 ms? The units only draw about 10-15 watts.
Thanks in advance for any assistance or insight!
Ian
First post here, a few times google has sent me here and I figured I'd better take the hint!
Probably a stupid question I know, but I haven't dealt with circuits for awhile, and this may be in the wrong forum, for both I apologize in advance.
Situation: I am designing a controller for a salt water fish tank, through my PC and will be flipping relays to turn on/off various AC voltage items. Some of these are motors (called power heads) that move water in the tank. During start up these will usually CLICK and rattle a few times and I basically want to reduce that. I'm pretty sure it can be done by ramping the voltage up, but haven't been able to find a way to do it with AC voltage.
Can I simply use a resistor and capacitor in an AC circuit to ramp up voltage from off to 110VAC in say 500 ms? The units only draw about 10-15 watts.
Thanks in advance for any assistance or insight!
Ian