Near Intersection of I-35 & I-90 Southern Mn. | In the past, Raven used a somewhat butchered board out of their Fast Close NH3 valve head for this purpose They really just replaced the limit switches which stop the valve from running in circles with a piece of wire. The FETs that were on that board then handled the load of running the motor and the PWM output from the controller was the input to the board.
This board was overkill since there were more components on the board than were necessary for this task.
I would expect Raven to start producing the device that we saw unless the Prototypes showed some problems.
Edited by tedbear 2/19/2011 15:14
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Insight PWM setup
