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Mouser and Vishay examine battery management solutions in new eBook

Fri, May 03, 2024

Mouser Electronics, has released a new eBook in collaboration with Vishay Intertechnology, analysing the considerations and challenges of designing high-performing and reliable battery systems.

The eBook, 8 Industry Experts Discuss Battery Management Solutions, focuses on the battery management system (BMS), which is the electronic control circuit that monitors and regulates the charging and discharging of batteries. The BMS informs the systems of the state of charge (SOC) of the battery, ensures that the conditions are optimal for the battery’s state of health (SOH), and protects the battery from fault conditions that could damage it. The eBook explores proper BMS design and the ways that Vishay helps its customers achieve the best performance and reliability for battery systems. The eBook also includes examples from Vishay’s wide portfolio of discrete semiconductors and passive components to help extend battery life, improve operational safety, and ensure reliable data acquisition for precise battery health monitoring and efficient power management.

The Vishay VOA300 linear optocoupler is ideal for voltage and current monitoring in the BMS of electric and hybrid vehicles (EV/HV). The automotive-qualified device provides a fast response, gain stability, and isolation voltage greatly improved over other standard optocouplers.

The WSBE series Power Metal Strip shunt resistors feature a very low resistance and a high power capability, enabling high current sensing to 1825A. These resistors are made using a proprietary processing technique that reduces the temperature coefficient of resistance (TCR) to < 10 ppm/°C across the entire operating range of -55 °C to 150 °C. The devices also offer many other advantageous attributes that help simplify BMS designs and reduce costs while achieving the highest levels of performance.

Vishay surface-mount PAR transient voltage suppressor (TVS) diodes protect sensitive electronics against voltage transients induced by inductive load switching and lightning on ICs, MOSFET, and signal lines of sensor units for automotive.

Consisting of two resistors integrated into one surface mount molded package, the CDMM thick film chip dividers provide a single-component replacement for multiple discrete resistors used in high voltage up to 1.5KV divider applications. The space-saving AEC-Q200 qualified device is optimised for high-power DC/DC converters and inverters in electric automobiles.

The Vishay / Siliconix SQ automotive power MOSFETs are AEC-Q101 qualified and produced using a special process design that is optimised for use in the automotive industry. These devices are available in a wide range of package options for design flexibility.

To read the new eBook, visit https://manufacturers.mouser.com/vishay-automotive/vishay-8-industry-experts-discuss-battery-management-solutions-2/

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Panasonic introduces new Amorton indoor solar cell series

Wed, May 01, 2024

Panasonic’s hydrogenated amorphous silicon (a-Si:H) solar cells, known as Amorton, power indoor and outdoor applications like IoT devices, watches, sensor nodes, asset trackers, or remote controls. Amorton can harvest energy reliably and sustainably even in low light and artificial light environments.

Now Panasonic introduces its latest Amorton solar cell series: Named AMG-1401C and AMG-1701C, the new products benefit from a nearly perfect black-reflective surface and much higher efficiency (+20%). These breakthroughs have been made possible thanks to an optimised production process, which significantly increased the active area compared to the previous generation. The result is a 20% increase in efficiency, making the new AMG-series one of the most efficient indoor amorphous solar cells on the market today. The AMG-1401C and AMG-1701C, which are based on glass substrates, are 1.1mm thin, generate approx. 8uW/cm2 at 200lux per active area.

The external dimensions are only slightly larger than the active area, which means the space and material consumption in the final application can be optimized. The AMG-1401C with external dimensions of 41.4mm x 26.1mm generates a maximum of 77.8uW at 200 lux. The cell voltage is 2.2V, which means it can be combined with many power management ICs available in the market.

https://industry.panasonic.eu/

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THine introduces camera kit for NVIDIA Jetson Orin NX/Nano

Tue, Apr 23, 2024

THine Solutions have announced the new THEIA-CAM 13MP PDAF camera, THSCJ101, for the NVIDIA Jetson Orin NX and Jetson Orin Nano platforms. Along with its pre-optimised ISP firmware and Linux driver, Jetson users are now able to easily integrate advanced imaging capabilities into their systems.

The THSCJ101 kit is a camera reference design kit for embedded camera applications that are using the NVIDIA Jetson Orin NX or the Jetson Orin Nano platform. The THSCJ101 kit is based on THine’s THP7312-P ISP and Sony’s IMX258 13MP CMOS PDAF image sensor.

THine’s optimised ISP firmware provides ultra-quick autofocus using Phase Detection Autofocus (PDAF) technology and best-in-class image quality. The kit hardware includes all items required to interface with Jetson Orin carrier boards with a 22-pin MIPI CSI-2 input connector, including a camera board in an acrylic case and a flat flexible cable.

The Video4Linux2 (V4L2) driver for the THSCJ101 is also available to control various video functions. The performance of each kit is repeatable for use in high volume production due to our production process to characterise the image parameters of each image sensor and to calibrate the image signal processing to compensate for variation from sensor to sensor.
All technical information including the reference circuit schematics, ISP firmware, and V4L2 Driver are available to customers.

Also, for customers that require unique image performance features, THine can provide a GUI based software development tool that customises the ISP firmware and/or the image sensor selection. As a result, the THSCJ101 can accelerate NVIDIA Jetson Orin NX/Nano platform users’ time-to-market without expensive integration cost or additional effort for developing embedded camera systems.

THEIA-CAM is designed for embedded vision systems. Using and optimising THine’s own ISP, THine offers Best-in-Class image quality and high production quality suitable for any project phase from proof of concept to high volume production. THEIA-CAM supports various operating systems including Windows, macOS, Android, and Linux, and various platforms including Raspberry Pi, Jetson Orin, i.MX 8M families, and MediaTek Genio series. THEIA-CAM addresses wide-ranging camera applications including but not limited to AI + IoT devices, AR glasses, barcode reading devices, biometric devices, bodycams, document scanners, machine vision systems, medical scopes, microscopes, surveillance cameras, vision assistance glasses, and webcams. THSCU101, the first Kit in the family, is a 13MP PDAF USB video class (UVC) Camera

https://www.thinesolutions.com

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Rohm develops a new Op Amp that minimises current consumption

Thu, Apr 11, 2024

Rohm has developed a linear operational amplifier (op amp) – LMR1901YG-M – featuring the lowest* current consumption in the industry. This makes it ideal for amplifying sensor signals used to detect and measure temperature, flow rate, gas concentration, and other parameters in applications powered by internal sources (i.e. batteries).

In recent years, advanced control has been in increasing demand for various applications in consumer and industrial electronics. Therefore, there is an increasing need for accurate sensing of parameters relevant to the application – such as, temperature, humidity, vibration, pressure, and flow rate. Op amps whose main function is to amplify sensor signals for subsequent detection and/or analog-to-digital conversion, is a crucial component in the signal chain – greatly affecting both accuracy and power consumption. Rohm is developing op amps that satisfy the dual need for high accuracy and low current consumption. By further refining the circuit design based on original Nano Energy technology.

The LMR1901YG-M leverages original ultra-low power technology that thoroughly suppresses current increase caused by temperature and voltage changes to reduce current consumption to just 160nA (Typ.) – approximately 38% lower than that of general low power op amps. This not only extends the life of applications powered by internal batteries like electronic shelf labels, but also contributes to longer operating times for smartphones and other devices equipped with rechargeable batteries. At the same time, this low current consumption does not change over the temperature range of -40°C to +105°C – allowing stable low-power operation, even in environments where external temperatures fluctuate, including fire alarms and environmental sensors.

Other performance enhancements include 45% reduction of input offset voltage to just 0.55mV (Max. Ta=25°C) over general low-current op amps while a maximum input offset voltage temperature drift of 7V/°C is guaranteed. This enables high accuracy amplification of sensor signals. Capable of operating from 1.7V to 5.5V supply voltage and offering rail-to-rail input/output, LMR1901YG-M is suitable for a wide variety of applications in the industrial equipment and consumer markets. Rohm’s new op amp also complies with the automotive reliability standard AEC-Q100 – ensuring stable operation even under harsh conditions such as vehicle cabins without compromising functionality.

In addition to various technical documents necessary for circuit design and SPICE models for simulation (available free of charge on Rohm’s website), the LMR1901YG-M can be used with Rohm Solution Simulator to speed up time to market.

https://www.rohm.com

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Mouser and Vishay examine battery management solutions in new eBook

Panasonic introduces new Amorton indoor solar cell series

THine introduces camera kit for NVIDIA Jetson Orin NX/Nano

Rohm develops a new Op Amp that minimises current consumption

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