http://www.inseatmassage.com/Total_Control.htm

this might be of some help to those of you who are getting brown butts due to over toasting.

 

Interesting. I wonder if any of this would be adaptable to our seats.

Come on Daveman this might be your specialty.

 

LINYScrew,

I think adding a thermostat is not too hard, but adding a feed back circuit would be what we'd need. This feedback element would need to go into the seat and place and a thermocouple would serve as a good feedback element.

Without a thermocouple, the thermostat would have no reference signal and therefore could not control anything.

However, there is more than one way to control this circuit and one is to have a closed loop feedback circuit as I mentioned and the other is to have a purely resistive control that creates a voltage drop and therefore supplies a lower voltage to the heaters but then they will try and pull more current since they are basically a fixed resistor. The best way is to modulate the circuit on and off like most every thermostat does and this requires no voltage drop but is meerly a circuit that controls the on time and off time.

Hope this helps, I'm still thinking and learning too.

Later,
DaveMan

 

Or, one could reach down and push the "off" button!!
Sorry, I couldn't resist.
BroncoDave

 

ummm, yep gotta agree with ya! I think I´ll just push the button off.

 

I agree. That is what I do just push the button. But is just way too easy.

Thanks for the info Daveman unfortunately I must admit it is over my head. I do understand the basics of what you said.

 

reach down and turn off the seat heater, blasphemy!!!!