Hello all. Long story short, I am installing some seats from a newer car into a 60's mustang. The new seats have heating and cooling using a canbus controller. I will not be using the canbus, but would like to wire up the heat/cool to work on a switch. I am an electronic circuits amateur.
The system is comprised on a blower motor to move the air through the seats, and a TED to either heat or cool the air. I would ideally like to have a single (DPDT) switch on each seat which can turn on either heat or cool. The blower motor must retain constant polarity to blow in the right direction, while the TED must be reversed to swap from heat to cool.
One catch, the voltage is being stepped down from 12v to 8v through a transformer for the motor and the TED. I would prefer not to have a second transformer in each seat to make this work if possible.
So, I would like to use the DPDT to swap polarity of the circuit, but maintain polarity to motor. I came up with a quick idea with diodes, then tested it with circuitlab and it appeared to work... Am I completely off base or making this too complicated?
The system is comprised on a blower motor to move the air through the seats, and a TED to either heat or cool the air. I would ideally like to have a single (DPDT) switch on each seat which can turn on either heat or cool. The blower motor must retain constant polarity to blow in the right direction, while the TED must be reversed to swap from heat to cool.
One catch, the voltage is being stepped down from 12v to 8v through a transformer for the motor and the TED. I would prefer not to have a second transformer in each seat to make this work if possible.
So, I would like to use the DPDT to swap polarity of the circuit, but maintain polarity to motor. I came up with a quick idea with diodes, then tested it with circuitlab and it appeared to work... Am I completely off base or making this too complicated?
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