Alternative Transportation
Drones & Mobile Robots
Motor current sampling, angle and position feedback and over-current protection for multi-rotor drones, gimbals and mobile robot platforms.
Drone ESCs must sample phase current quickly at high rotational speeds to decide on commutation and over-current protection, making bandwidth and response time critical. RJMICRO linear Hall current sensors offer 240 kHz bandwidth and microsecond-level response, while position Hall sensors provide angle feedback for gimbals and servos.
Systems and scenarios covered
Power systems
- Brushless motor ESCs: phase current sampling and over-current protection
- battery and power management
Control and actuation
- Gimbals and servos: angle and position feedback
- landing gear and control-surface position sensing