Automotive-grade, high-reliability sensing and control chip solutions
Alternative Transportation

E-Two-Wheelers & E-Tricycles

Motor control, phase current sensing, throttle/pedal sensing and complete vehicle power solutions for e-bikes, electric motorcycles and electric tricycles.

Two- and three-wheeled electric vehicles sell in large volumes and are cost sensitive, yet must stay reliable through rain, water immersion and long-term vibration. RJMICRO uses linear Hall current sensors for the phase-current loop of hub and mid-drive motors, Hall switches and latches for throttle, cadence and speed sensing, and wide-input LDOs for the vehicle control supply.

Systems and scenarios covered

Electric drive systems

  • Hub motors and mid-drive motors: phase current sensing and commutation
  • controller over-current and stall protection

Vehicle electrical systems

  • Throttle and cadence position sensing
  • vehicle and wheel speed sensing
  • BMS bus current sensing
  • instrument and lighting supply

Other application areas

01

Powertrain

Covering transmission, fuel tank, engine peripherals and traction systems — chip solutions for electronic shif…

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02

Chassis Systems

Covering electric power steering (EPS), braking and suspension systems with angle, speed and position sensing …

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03

Thermal Management

Covering air conditioning, PTC heaters, valves and pumps — a one-stop chip solution for electronic water pumps…

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04

Body Electronics

Covering windows, door handles, power tailgates, sunroofs, seats, electronic wipers and charge-port doors with…

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05

Automotive Lighting & Smart Cockpit

Control and drive for dynamic ambient lighting, smart surfaces, interior and exterior lamps and reading lights…

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06

Industry & Robotics

Current sensing, position feedback and speed measurement for servo drives, robot joints, industrial inverters …

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07

Energy & Power

Current sensing and power management for PV and storage, charging infrastructure, digital power and switching …

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08

Drones & Mobile Robots

Motor current sampling, angle and position feedback and over-current protection for multi-rotor drones, gimbal…

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09

White Goods & Variable-frequency Motors

Inverter compressor and fan drive, phase current sensing and speed/position feedback for air conditioners, ref…

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10

Smart Home

Motor drive, position sensing and power solutions for smart locks, motorized curtains, robot vacuum actuators …

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11

Consumer Electronics & Wearables

Position sensing, motor drive and power management for wearables, personal-care appliances and portable consum…

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Need selection support or samples?

Our application engineers work from your system design and provide magnet selection, field simulation, motor system support and reference designs.