XENSIV stray field robust linear TMR sensor enables high-precision length measurements

The sensor comes in a wafer-level package and is well suited for linear and angular incremental position detection. The device is qualified for industrial and consumer applications according to the JEDEC standard JESD47K and can be used as a replacement for optical encoders and resolvers. It is well suited for positioning lenses for zoom and focus adjustment in cameras.

The TLI5590 is a low field sensor with Infineon TMR technology which was developed for high-volume sensor systems. As a result, the sensor offers ultra-high sensitivity, low jitter, and low power consumption. Compared to linear Hall sensors, TMR sensors offer better linearity, lower noise, and lower hysteresis. The high signal-to-noise ratio and the lower power enable cost-effective magnetic designs with lower battery consumption.

As a result, the new sensor enables accurate detection with rapidly changing directions. The TLI5590 consists of two TMR Wheatstone bridges, where the TMR resistance depends on the direction and strength of the external magnetic field. In combination with a multipole magnet, each bridge provides a differential output signal, i.e., sine and cosine signals. These can be further processed for relative position measurement.

The sensor is housed in an extreme small 6-ball wafer level package SG-WFWLB-6-3. Due to the higher integration density, the sensor size has been reduced, which supports miniaturisation and position detection in microsystems. The TLI5590-A6W enables fine measurement with a very high accuracy of better than 10 µm, which is achieved by using a suitable linear or rotary magnetic encoder. With an extended operating temperature range of up to +125°C, the sensor can be used flexibly in various industrial and consumer applications. In addition, its high temperature stability makes it the perfect choice for use in harsh environments.

https://www.infineon.com/linear-sensors/tli5590-a6w

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HaiLa showcases first Wi-Fi-based extreme-low-power backscatter chip

HaiLa Technologies has announced the availability of the BSC2000 RF evaluation chip development and demonstration kits. Presto Engineering successfully collaborated with HaiLa to develop the first complete analog and digital implementation of HaiLa’s passive backscatter technology adapted to Wi-Fi RF bands.

Supporting an SPI interface, the chip brings seamless connectivity to a wide range of IoT devices, such as multi-channel temperature and humidity sensors. The joint partnership to develop the BSC2000 demonstrates the path to extreme-low power in IoT devices used in building, home and industrial automation; consumer electronics and wearables; smart transportation; agriculture; medical; and automotive markets.

“HaiLa is pleased to have collaborated with Presto Engineering on the silicon implementation of the BSC2000, and we’re excited to showcase our technology at CES 2024,” said Derek Kuhn, President and CEO, HaiLa Technologies, Inc. “This is another step forward in our mission to enable sustainable scaling of IoT over existing wireless infrastructures, helping end-users meet their net-zero goals through a massive reduction in battery waste. Presto’s long experience in ultra-low power RFID and NFC allowed HaiLa to complement its team with expert resources embedded into the development process, delivering the completed BSC2000 ASIC as one team.”

According to Cedric Mayor, CEO, Presto Engineering, “We are proud to support HaiLa on a key industry initiative to help reduce carbon footprint of connected objects. This project has shown that pushing the limit of IoT power efficiency is not only possible but a game changer for mitigating the cost and waste of battery usage.” Mayor adds, “With our deep expertise in RF mixed-signal chip design and ultra-low power architectures, we look forward to extending our partnership with HaiLa to jointly address new business opportunities leveraging their unique IP in future projects.”

HaiLa’s passive backscatter foundational technology is protocol-agnostic. As the most common wireless local area network (WLAN) technology in residential, enterprise and industrial environments globally, HaiLa has focused its first adaptation on Wi-Fi as a key infrastructure enabler for IoT deployments.

https://www.haila.io

https://www.presto-eng.com

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GaN FETs Enable 75 – 231 ampere laser diode control in nanoseconds for advanced automotive autonomy

EPC introduces three evaluation boards – EPC9179, EPC9181, and EPC9180 – featuring pulse current laser drivers of  75 A, 125 A, and 231 A , showcasing EPC’s AEC-Q101 GaN FETs. These FETs; EPC2252, EPC2204A, and EPC2218A are 30% smaller and more cost-effective than their predecessors. Designed for both long and short-range automotive lidar systems, these boards expedite solution evaluation with varied input and output options.

All boards share identical functionality, differing only in peak current and pulse width. Utilising a resonant discharge power stage, they employ a ground-referenced GaN FET driven by LMG1020 gate driver. The GaN FET’s ultrafast switching enables rapid discharge of a charged capacitor through the load’s stray inductance, enabling peak discharge currents of tens to hundreds of amps within nanoseconds. The printed circuit board is designed to minimise power loops and common source inductance while offering mounting flexibility for laser diodes or alternative loads. To enhance user-friendliness, all boards ship with EPC9989 interposer PCBs, featuring various footprints to accommodate a variety of laser diodes or other loads. Customers can choose one that meets their needs to evaluate the GaN solutions.

The EPC9179/81/80 boards are designed to be triggered from 3.3V logic or differential logic signals such as LVDS. For single-ended inputs, the boards can operate with input voltages down to 2.5 V or 1.8 V with a simple modification. Designing an automotive lidar system is complex, and finding a reliable solution is challenging. The purpose of these evaluation boards is to simplify the evaluation of powerful GaN-based lidar drivers that switch faster and deliver higher pulse current than other semiconductor solutions. For technical details, EPC offers full schematics, bill of materials (BOM), PCB layout files, and a quick start guide on EPC’s website.

“To meet the growing demand for automotive lidar, these cost-effective boards, featuring our latest AEC products, streamline evaluation, reducing time-to-market with exceptional switching performance,” said Alex Lidow, CEO, and co-founder of EPC.

https://epc-co.com

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Advantech WISE-2460 smart vibration sensing solution for health monitoring equipment

Advantech has introduced the new WISE-2460 innovative vibration sensing solution. This device supports RS-485 serial communication through Modbus/RTU protocols and boasts Z-axis sensitivity spanning from 5 to 10000Hz. ISO 10816-1 compliant and capable of operating in a wide temperature range of -20°C to 105°C, WISE-2460 sets a new standard in vibration sensing technology.

Designed for monitoring equipment RPM and frequency detection ranges in challenging environments, WISE-2460 features an ARM Cortex-M7 processor, a high-detection-range Z-axis accelerometer, and a temperature sensor, all enclosed in a robust IP68-rated enclosure. The device simplifies configuration and alarm threshold management through the user-friendly Advantech WISE Studio utility.

Unlike conventional piezo vibration sensors that require connection to a high-speed DAQ card and subsequent calculations on a remote IPC, the WISE-2460 series offers an integrated solution. Capable of swiftly executing data acquisition, processing, and publication in seconds, it easily outperforms costly and inefficient traditional setups. WISE-2460 is designed to identify vibrations within the 5 to 10,000 Hz range through single-axis measurements. It transmits data using RS-485 and supports the Modbus/RTU protocol, making it well-suited for a variety of industrial applications. Its enhanced sensitivity enables the sensor to detect emerging problems not visible at lower frequencies. WISE-2460 also provides vibration data for four machine classes across four levels, following ISO 10816-1 guidelines. By analysing these vibration characteristics, operators can swiftly diagnose motor problems. This empowers maintenance teams to proactively tackle issues before they deteriorate, reducing downtime and averting expensive equipment malfunctions.

Advantech WISE Studio is user-friendly yet powerful utility software for configuring, managing, and monitoring IoT devices, which encompasses device management, monitoring, and data visualisation features. This tool enables seamless cloud connectivity, firmware updates, and the useful creation of personalised data dashboards. Utilising Advantech WISE Studio, users gain access to all the necessary vibration characteristics like velocity RMS, acceleration RMS, acceleration peaks and more. The advanced configuration of WISE Studio enables operators to personalise detection range settings with up to ten detection bands. Additionally, users can directly acquire time waveform data from the WISE-2460 series, facilitating further diagnostic analysis.

The WISE-2460 series is built to endure extreme temperatures ranging from -20°C to 105°C and boasts an IP68 protection rating. This makes it suitable for deployment in the most demanding industrial settings, even those deemed too hazardous for extended human presence. It excels at monitoring critical vibrating machinery while also withstanding high equipment surface temperatures.
Applications include proactive maintenance for vibration monitoring, serving sectors such as semiconductor, automotive assembly, steel and cement production, and the food & beverage industry. Equipment under surveillance by WISE-2460 include rotary lobe pumps, screw pumps, propeller pumps, air compressors, gearboxes, motors, fans, blowers, belts and chain drives, couplings, centrifugal pumps, piston pumps, sliding vane pumps, piston compressors, centrifugal compressors, screw compressors, closed coupled machines, spindles, and more.

Cost Effective Solution for Enhancing Asset and Facility Management
Deploying the WISE-2460 series for predictive maintenance delivers widespread benefits including asset visualisation, enhanced availability, and substantial asset management returns. This versatility empowers industrial plant operators to improve facility management through machine health assessment, fault classification, predictive insight, data visualisation, and optimal maintenance strategies.

WISE-2460 is available now, contact your local sales team or visit the website www.advantech.com/en-eu for more information.

A video demonstration is available to view here https://www.advantech.com/en/resources/video/wise-2460-smart-vibration-sensor

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