Dankdryer improvements: Difference between revisions
No edit summary |
|||
| Line 9: | Line 9: | ||
==Electronics== | ==Electronics== | ||
Let's toss the TB6612FNG motor controller. We only need one direction of rotation, so we control the motor with an [https://www.sparkfun.com/datasheets/Components/General/RFP30N06LE.pdf RFP30N06LE] N-channel MOSFET, a [https://www.vishay.com/docs/88525/1n5817.pdf 1N5817] Schottky diode, and a 10K resistor. The n-FET goes on the ground side of the motor, and the diode runs in parallel with the load (i.e. is connected to the motor's two pins). The resistor | Let's toss the TB6612FNG motor controller. We only need one direction of rotation, so we control the motor with an [https://www.sparkfun.com/datasheets/Components/General/RFP30N06LE.pdf RFP30N06LE] N-channel MOSFET, a [https://www.vishay.com/docs/88525/1n5817.pdf 1N5817] Schottky diode, and a 10K resistor. The n-FET goes on the ground side of the motor, and the diode runs in parallel with the load (i.e. is connected to the motor's two pins). The resistor pulls down the gate lead. This eliminates four net (AIN1, AIN2, STBY, AO2, APWM go away; we add GATE) wires while adding one resistor, a net reduction of seven joints. I'm not certain that it's actually any cheaper, though; it might actually be more expensive. | ||