Reference Designs
±50A Current Sensor using Closed-Loop Compensated Hall Element Reference Design
Texas Instruments
This TI Precision Verified Design provides a complete closed loop Hall based current transducer signal conditioning solution. The circuit features the DRV411 and is designed to accurately measure dc: ac and pulsed currents to +/-50 A with galvanic isolation between the primary and secondary circuits. The DRV411 provides Hall excitation: a compensation coil driver and a precision difference amplifier in a single package. The unique current spinning technology employed on the DRV411 virtually eliminates the offset and 1/f noise of the Hall device and enables accurate: galvanically isolated: high-current: measurements in applications such as industrial motor control: energy: and HEV.
Features
- TI Precision Designs: Verified DesignIncludes theory: component selection: TINA-TI simulation: PCB schematic & layout: bill of materials: and measured resultsMeasures dc: ac and pulsed currents to +/-50 ASingle 5 V supplyGalvanic Isolation between primary and secondary circuits
Applications
- Fitness machine
- Mother & neonatal care monitor
- Electric toothbrush
- Motorized electronic wheel chair
- Medical chair & table
- CT & PET scanner
- X-ray systems
- Operation tables
- Dental chairs
Product Categories
- Amplifiers
End Equipment Reference Diagrams
Application Area
End Equipment
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