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
Recommended products
For Drones & Mobile Robots, the following RJMICRO devices can be designed in directly — open a device to see full specifications and datasheets.
Automotive-grade Linear Hall Current Sensor
Programmable sensitivity from 0.5 mV/G to 11.5 mV/G, 240 kHz bandwidth, 2.2 µs response and ±1% sensitivity error over the full temperature range — built for three-phase traction inverter current sensing.
Differential Hall Current Sensor
Differential Hall architecture with strong common-mode stray-field immunity. Pin-to-pin compatible with ACS724 / MLX91220 for traction inverter and power-supply current sensing.
Automotive-grade Vertical / Planar Hall Latch
3.3 V–24 V wide supply, 40 V load-dump and reverse-polarity protection, symmetric switching points producing a near-50% duty square wave — an ideal choice for motor commutation.
IMC / 3D Hall Position Sensor
IMC integrated magnetic concentrator plus vertical Hall technology, heterogeneously integrated for high-sensitivity measurement with on-chip algorithms delivering high-accuracy angle output.
Other application areas
Powertrain
Covering transmission, fuel tank, engine peripherals and traction systems — chip solutions for electronic shif…
View solutions 02Chassis Systems
Covering electric power steering (EPS), braking and suspension systems with angle, speed and position sensing …
View solutions 03Thermal Management
Covering air conditioning, PTC heaters, valves and pumps — a one-stop chip solution for electronic water pumps…
View solutions 04Body Electronics
Covering windows, door handles, power tailgates, sunroofs, seats, electronic wipers and charge-port doors with…
View solutions 05Automotive Lighting & Smart Cockpit
Control and drive for dynamic ambient lighting, smart surfaces, interior and exterior lamps and reading lights…
View solutions 06Industry & Robotics
Current sensing, position feedback and speed measurement for servo drives, robot joints, industrial inverters …
View solutions 07Energy & Power
Current sensing and power management for PV and storage, charging infrastructure, digital power and switching …
View solutions 08E-Two-Wheelers & E-Tricycles
Motor control, phase current sensing, throttle/pedal sensing and complete vehicle power solutions for e-bikes,…
View solutions 09White Goods & Variable-frequency Motors
Inverter compressor and fan drive, phase current sensing and speed/position feedback for air conditioners, ref…
View solutions 10Smart Home
Motor drive, position sensing and power solutions for smart locks, motorized curtains, robot vacuum actuators …
View solutions 11Consumer Electronics & Wearables
Position sensing, motor drive and power management for wearables, personal-care appliances and portable consum…
View solutionsNeed selection support or samples?
Our application engineers work from your system design and provide magnet selection, field simulation, motor system support and reference designs.