App note: RC Model Aircraft Motor Control
Modern RC model aircraft designs incorporate some hefty standards regarding motor speed control:
- The motor should not be started until the speed is at its lowest setting
- Motors with gearboxes should have acceleration limits
- If the control signal is lost the motor should shut off
- Motor shut off in case of low battery, to save power for reaming systems
This reference design from Microchip features two versions of a DC motor controller. Version one has all the features from the list above, while version two adds programmable throttle response and a motor brake.app notes and tagged DC Motor controll, microchip, PIC.