By: Tillmann (IP: 130.83.244.*)
Written on: 02-11-2005 22:12
Hi,
yes, I think it should work the other way around as well. The modification is very simple: You just connect the wire of the controller that would normally be wired to the - wire of the fan to the + wire of the device, and the - wire of the device to ground.
However, a heater will use much more power than a fan. The amount of power the controller can supply is limited. I don't think it will be able to power a heater. However, it could power a relais which in turn powers a light globe (even 110/220V) - the light bulb would only be switched on/off and not regulated but it should nevertheless do the job.
If you actually try this, please post your results. And enjoy your beer 
bye,
Till
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By: Brango (IP: 60.229.214.*)
Written on: 04-11-2005 03:36
Iv put one together but i cant get it to work. if i disconnect either wire off the pot the fan spins all the time, but when i connect it back on the fan stops and adjusting the pot all the way round and back dosent do anything. I tried a second pot, same thing. Any suggestions before i start again with all new parts. |
By: brango (IP: 60.229.215.*)
Written on: 04-11-2005 09:02
Im starting to think the mosfet i bought is either faulty or the wrong type, the description on the packaging says MTP3055E N-CHANNEL STripFET 60V 12A POWER MOSFET.
The first potentiometer seems a bit flakey but the second one apperes to be working correctly when tested with a multimeter.
If someone could point me in thre right direction id apreciate it
Thanks. |
By: Brango (IP: 143.238.119.*)
Written on: 08-11-2005 05:49
Its up and running, took me a while to work out that you have to scale the potentiometer size to the thermistor. |
By: ureche (IP: 83.103.232.*)
Written on: 14-11-2005 18:45
Hi, i am a little noob to this electronic stuff, but there is a way to get rid of the heat sensor? I want to set my chipset cooler to 4-5000rpm no matter the temperature. Or do you have something like a schematic adaptor from 12v to 10v??? |
By: ureche (IP: 83.103.232.*)
Written on: 14-11-2005 18:54
Well just found the answer on the forum:
By: Tillmann (IP: 212.98.201.*)
Written on: 28-10-2005 15:46
Hi,
yes that's possible; however you shouldnt simply remove the thermistor. Instead, it should be replaced by a 10 kOhms resistor.
bye,
Tillmann
silly me :d |
By: Tillmann (IP: 130.83.244.*)
Written on: 14-11-2005 19:04
Hi,
yep, that will work, but for your purpose of just reducing the voltage ~2V, that solution is overkill. You can just add two or three diodes in the + or - wire of the fan (observe proper polarity); each diode will reduce the voltage by 0.7V.
bye,
Till |