Energy & Power
Current sensing and power management for PV and storage, charging infrastructure, digital power and switching power supplies — covering the full path from bus to load.
The heart of any energy conversion system is measuring current accurately and reliably. RJMICRO provides linear and differential Hall current sensors covering current sampling at the MPPT input, battery charge/discharge and inverter output, complemented by wide-input automotive LDOs that supply the control and driver circuits.
Systems and scenarios covered
Solar, storage and charging
- Photovoltaic inverters (MPPT input current, inverter output current)
- energy storage PCS
- charging piles and on-board chargers (OBC)
- portable and mobile power stations
Digital power and distribution
- Switching power supplies, DC/DC and DC/AC inverters
- grid infrastructure and distribution
- bus current sensing in battery management systems (BMS)
Recommended products
For Energy & Power, 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.
150 mA, 40 V Ultra-low Quiescent Current Automotive LDO
3 V–40 V wide input with fixed 3.3 V / 5 V output, 5.5 µA typical quiescent current and 800 nA shutdown current — ideal for always-on systems connected directly to the battery.
150 / 300 / 450 mA, 60 V Ultra-low Quiescent Current Automotive LDO
3 V–60 V wide input with up to 45 V transient tolerance; fixed 1.8/2.5/3.3/5 V and adjustable 1.8 V–15 V outputs covering the current range of 12 V / 48 V systems.
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 07E-Two-Wheelers & E-Tricycles
Motor control, phase current sensing, throttle/pedal sensing and complete vehicle power solutions for e-bikes,…
View solutions 08Drones & Mobile Robots
Motor current sampling, angle and position feedback and over-current protection for multi-rotor drones, gimbal…
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.