Current Sensing Advances from NVE Corporation
Over-Trace High Current Sensing
Eden Prairie, Minnesota - October 31, 2018 - NVE Corporation, a leader in the practicial commercialization of spintronics, has a new demo board can measure up to 40 amps through a circuit board trace using a noncontact GMR sensor!
The sensors detect the magnetic field generated by the current through a heavy-duty trace.
The board measures 2.5 by 2.75 inches (64 by 70 mm). The three modules are optimized to measure currents of 0 to 1 amp, 0 to 5 amps, and 0 to 40 amps. Each module has its own screw connections and the modules can be snapped apart.
Unlike conventional current shunts, over-trace current sensing has no insertion losses, and GMR sensors have large signals and inherent electrical isolation.
Click here to see a live demonstration of the board.
NVE’s groundbreaking AAL-Series GMR analog magnetic sensors are now five times as fast. An new fabrication process increased the sensor bandwidth from an already darn fast 100 kHz to a ridiculously fast 500 kHz.
AAL-Series sensors are ideal for current sensing, and the new parts allow lightning-fast overcurrent protection and high-frequency sensing in state-of-the-art power conversion and motor control applications.
Key AAL-Series features include:
• Wheatstone bridge analog output
• 500 kHz frequency bandwidth
• Up to 3.6 mV/V/Oe sensitivity
• Omnipolar for AC or DC measurements
• <2% hysteresis
• Ultraminiature 2.5 mm x 2.5 mm x 0.8 mm TDFN6 available
About NVE Corporation
NVE manufactures high-performance spintronic products including sensors and couplers that are used to acquire and transmit data. Products offer smaller size, more precision, higher speed, and are more rugged than conventional devices. NVE parts are popular in industrial, scientific, and medical applications.