Hi guys and gals,
I'm a Civil so bear with me on this one. I've recently installed an electric fan in my car to replace the mechanical unit it once had and am running into a problem. When installing the fan I could not find a wire thick enough to connect to the fan so I just hard wired it to the battery (fan is on a thermostat controller so it's not on all the time). But the issue i'm having is that when I turn the car off and the fan is on it keeps running I want the fan unit to only have power when the vehicle is running.
I was thinking of using some sort of switch that trips when it gets a 12V current from the ignition (I had this with an amp I used to have). A buddy of mine suggested a IGBT or a MOSFET. Would this work? If so say I want it turned on by a 12V signal, when the fan turns on there is a very high amperage peak of 60-70 amps but the constant draw is about 30-35 Amps with a 15 volt max. What should I use?
I'm a Civil so bear with me on this one. I've recently installed an electric fan in my car to replace the mechanical unit it once had and am running into a problem. When installing the fan I could not find a wire thick enough to connect to the fan so I just hard wired it to the battery (fan is on a thermostat controller so it's not on all the time). But the issue i'm having is that when I turn the car off and the fan is on it keeps running I want the fan unit to only have power when the vehicle is running.
I was thinking of using some sort of switch that trips when it gets a 12V current from the ignition (I had this with an amp I used to have). A buddy of mine suggested a IGBT or a MOSFET. Would this work? If so say I want it turned on by a 12V signal, when the fan turns on there is a very high amperage peak of 60-70 amps but the constant draw is about 30-35 Amps with a 15 volt max. What should I use?