Motor Control Configuration
im using 4 9 volt batteries.Spec for the motor Value
Stall Current 17.5 A @ 11.1V
Free-Run Speed ~43,000 RPM
Nominal Voltage 11.1V (3S LiPo)
Motor Size 180-size (brushed DC)
Thought for 2 mins 32 sec
Here’s what we’d need to add to the Nano-shield template to drive three DC-180 motors (17.5 A stall @11.1 V):
-
Motor power/output interface (×3)
- Connector: Pin Header 01x02 2.54mm Vertical
-
Unidirectional MOSFET drivers (×3)
- MOSFET: IRLB3034PBF (40 V / 195 A, logic-level gate)
-
Flyback protection diodes (×3)
- Schottky: VS-30CPH03-N3 (30 V, 30 A)
-
Preset-voltage selector (Motor 3 only)
- SP3T switch: EG1312AR
Next: to feed Motor 3 with 7 V, 12 V or 16 V from your 4×9 V (≈36 V) pack, we’ll need onboard DC-DC conversion.
Do you want to:
- Use three off-the-shelf high-current buck-converter modules?
- Or design discrete regulators on-board (e.g. with an LM5116-style controller + external FETs)?
Let me know your preference, and I can integrate the appropriate regulators into the template.
Use off-the-shelf modules
Discrete regulators with LM5116
Multi-output buck IC
Module footprints
