Hi,
I am looking to use a LM675 op-amp to drive a fan motor, the device can supply up to 3A.
My fan is specified with max input voltage of 11V, Resistance 4 Ohms and Max power 30W.
I need to supply the op-amp with a split +/-12V and the output can swing 0.2v either way.
Using my thermistor circuit (voltage divider) I need to supply an appropriate voltage and current to power the fan so it delivers no power at 20 degrees and maximum power at 30 degrees. The load of the fan is 4 Ohms.
I am looking to use a LM675 op-amp to drive a fan motor, the device can supply up to 3A.
My fan is specified with max input voltage of 11V, Resistance 4 Ohms and Max power 30W.
I need to supply the op-amp with a split +/-12V and the output can swing 0.2v either way.
Using my thermistor circuit (voltage divider) I need to supply an appropriate voltage and current to power the fan so it delivers no power at 20 degrees and maximum power at 30 degrees. The load of the fan is 4 Ohms.