The LF21173TMR and LF21177TMR omnipolar magnetic switches from Littelfuse combine Tunneling Magnetoresistance (TMR) sensing with CMOS output circuitry in a compact LGA4 package for low-power, space-constrained designs. Operating across a 1.8 V–5.5 V supply range, the switches offer magnetic sensitivity from 9 to 30 Gauss and omnipolar operation, supporting applications such as smart meters, electronic […]
Magnetic sensor
Magnetic current device targets wide bandgap switching control
A new magnetic current sensor has been introduced by Allegro Microsystems that delivers a 10 MHz bandwidth using tunneling magnetoresistance (TMR) technology. The device is intended for power system engineers developing high-frequency designs such as electric vehicle inverters, renewable energy converters, and data center power supplies. The sensor provides a 50 ns response time and […]
Nine-axis solution combines IMU with TMR for orientation tracking
TDK Corporation has introduced tunnel magnetoresistance sensors as part of its sensing solutions for gaming peripherals. The TMR sensors target applications in keyboards, controllers, mice, webcams, augmented and virtual reality devices, driving wheels, and pedals. TDK’s gaming sensor portfolio includes TMR-based sensors, MEMS motion sensors, microphones, and ultrasonic time-of-flight sensors. TMR sensors provide ten times […]
Position sensor consumes 0.6 µA average current for battery applications
Texas Instruments has introduced the TMAG5134 Hall-effect switch, designed to provide enhanced sensitivity for position-sensing applications. The device incorporates an integrated magnetic concentrator that enables detection of magnetic fields as weak as 1mT, making it suitable for door and window sensors, personal electronics, and home appliances. The enhanced sensitivity allows engineers to use smaller magnets […]
Magnetic angle sensors available in TSSOP8 and LGA8L packages
Littelfuse, Inc. announced the launch of two new TMR-based magnetic angle sensors, the LF53466 and LF53464 – designed to deliver high-precision 0–360° angular measurement in harsh environments with minimal thermal drift. (View the video.) Both sensors utilize Tunneling Magnetoresistance (TMR) technology in a dual push-pull Wheatstone bridge configuration, each featuring four high-sensitivity sensing elements, which enable accurate angle detection along the X […]
Beyond the drivetrain: sensor innovation in automotive
By Karsten Köhler, Business Development Manager at TDK-Micronas The auto industry is amid two transformative trends: the gradual transition from internal combustion engines (ICE) to electric motors and drivetrains and the ongoing development of driver assistance and self-driving features. Sensor technology is famously integral to both trends, but electrification and assisted driving account for only […]
Open-frame push type solenoids offer customizable options
Push Type Solenoids from Magnetic Sensor Systems (MSS) include a series of 18 different low-cost open-frame solenoids to select from based on the Voltage, Duty Cycle, Force of up to 96 oz (26.7 N) and stroke requirements of the user. These clean, high-efficiency, low-cost S-18-100-QH Open Frame Push Type Solenoids can be operated at a […]
How is sensor fusion used in medicine?
Sensor fusion is most frequently discussed in smartphone and automotive control applications. However, the fusion aspect was initially created for military analysis. From the analysis standpoint, for improved decision-making, medical applications can and have benefited from sensor fusion. One example is in cancer detection and focused surgery. Specifically, the detection of and surgery for prostate […]
How sensors help you play ball: part 2
A FIFA-compliant match ball from Adidas has a TDK InvenSense 6-axis MotionTracking device and other electronics mounted in the center of the ball. As shown in Figure 1, the Adidas patented suspension system stabilizes the electronics module. Instead of having the sensing/communication module mounted on the surface of the ball near the inflator valve, the […]
Magnetic-field position sensor measures in three axes
TDK Corporation announces the portfolio expansion of its Micronas direct-angle Hall-effect sensor family with the new HAL 3927* sensor for automotive and industrial applications. HAL 3927 features a linear, ratiometric analog output with integrated wire-break detection as well as an SAE J2716 compliant SENT interface according to rev. 4. Samples are already available. The start of production […]
