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Dead reckoning module provides navigation in all environments

Tue, Jul 27, 2021

Automotive-grade positioning modules that operate up to 105 degrees C has been released by u-blox. The NEO-M9L modules and the M9140-KA-DR chip are built on the u-blox M9 GNSS platform and use dead reckoning techniques to provide position data when satellite signals are compromised or unavailable, says the Swiss company.

The u-blox NEO-M9L-20A and NEO-M9L-01A modules are automotive-grade, with the NEO-M9L-01A variant offering an extended operational temperature range up to 105 degrees C, making it suitable for integration on the roof, behind the windscreen, or inside electronics control units (ECUs).

The modules include six-axis inertial measurement units (IMUs) which deliver low-latency 100Hz raw data output. The modules offer a low latency 50Hz position update rate, for use in real-time applications. The automotive dead reckoning (ADR) output combines the GNSS fix with IMU data to deliver accurate positioning output. Additional GNSS-only output enables seamless integration into a variety of third-party applications. The receiver also supports wake-on-motion, which enables smart features such as theft protection and power-efficient designs.

The modules offer innovative sensor-based spoofing detection for advanced security and robustness. The chip offers protection against possible GNSS signal spoofing, which can cause navigation systems to report faulty position data or time.

“Paired with low-latency position output, attitude, and sensor data, the u-blox NEO-M9L is ready to meet current and future challenges facing the automotive market,” said Aravinthan Athmanathan, product manager, product centre positioning at u-blox.

Target applications for the NEO-M9L-20A and NEO-M9L-01A modules include integrated navigation systems such as in-vehicle infotainment (IVI) and head units, integrated telematics control units (TCU), and V2X.

All the module variants comply with AEC-Q104.

Engineering samples and evaluation kits will be available by the end of September 2021.

u‑blox specialises in positioning and wireless communication in automotive, industrial, and consumer markets. Its products and services let people, vehicles, and machines determine their precise position and communicate wirelessly over cellular and short range networks. The portfolio includes chips, modules, and secure data services and connectivity, to empower its customers to develop solutions for the IoT. u-blox’s headquarters are in Thalwil, Switzerland with offices in Europe, Asia, and the USA.

http://www.ublox.com

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Rutronik adds Nordic Semiconductor’s PMIC

Tue, Jul 27, 2021

Offering efficient reliability in confined spaces, the Nordic nPM1100 is a dedicated power management IC (PMIC) with configurable dual-mode buck regulator and integrated battery charger. It is designed as a complementary component to Nordic‘s nRF52 and nRF53 series of SoCs and to ensure reliable power supply and stable operation while maximising battery life through high efficiency and low quiescent currents. It can also be used as a generic PMIC device, says Rutronik, which has added the nPM1100 to its portfolio.

The compact (2.075 x 2.075 mm) WLCSP package can be used in wearable devices, connected medical devices, smart home sensors and controls, remote controls and game controllers, and other size constrained applications, advises Rutronik.

The integrated battery charger is designed to charge lithium-ion and lithium-polymer batteries to a selectable termination voltage of 4.1 or 4.2V and supports cell chemistries with a nominal voltage of 3.6 or 3.7V respectively. The PMICe features thermal battery protection and automatic selection of three charging modes: automatic trickle charge, constant current and constant voltage.

The maximum charging current can be selected via a resistor from 20 up to 400mA. The charger also has a discharge current limiter and is JEITA-compliant.

The high-efficiency step-down regulator can deliver up to 150mA of current at a selectable output voltage of 1.8, 2.1, 2.7 or 3.0V. It features soft start and automatic transition between hysteresis and PWM modes. It also enables a forced PWM mode to ensure clean operation.

The nPM1100 has a low quiescent current, 700nA typical, 470nA in ship mode (deactivates the current output) and 150mA current limit. The PMIC also has over-voltage protection and USB port detection for SDP, CDP and DCP. There is also a driver for charging and error indication LED and the nPM1100 evaluation kit.

http://www.rutronik24.com

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IIoT gateway operates in hazardous environments says Impulse Embedded

Tue, Jul 27, 2021

For the oil and gas industry, Axiomtek has produced the ICO300-83M: ATEX/C1D2 IIoT gateway system for hazardous environments. The ATEX/Class 1 Div. 2-certified rugged fanless gateway system is available from Impulse Embedded.

The ICO300-83M supports 5G high-speed low latency cellular connectivity in remote locations and combines I/O with flexible communication options. The gateway includes many industrial features such as wide 9.0 to 36V DC power input, an extended operating temperature range of -40 to +85 degrees C, and is supplied in a compact and robust DIN-rail mountable enclosure.

The ICO300-83M IIoT gateway is suitable for use in the oil and gas industry which is recognised as being one of the most hazardous environments that embedded computers can be integrated into. ATEX Zone 2 specifies that during normal operation there is only a chance of flammable materials being present in the atmosphere, it is not a risk that can be taken by organisations working in the oil and gas industry.

The ICO300-83M has an IP30-rated extruded aluminium and heavy-duty steel construction that is DIN-rail mountable and compact in size, making it suitable for installation in cabinets located within zones where the risk of exposure to flammable materials is possible.

The ICO300-83M is powered by the low power Intel Atom x5-E3930 processor running at 1.3GHz, offering fanless performance. This industrial gateway device has a range of features to facilitate the interconnectivity between device-level IoT and the base system and has a wide range of I/O including six isolated RS-232/422/485 serial ports, 16-bit isolated digital I/O and two USB3.0 ports, which are all front-accessible for installation into cabinets and tight spaces. The ICO300-83M has three Gigabit Ethernet ports, a full-size miniPCIe slot for LTE or Wi-Fi modules and an M.2 3052 B-key slot for 5G cellular connectivity.

Matt Lundberg, technical lead, Industrial IoT at Impulse Embedded, commented, “Having the capability to install high-speed 5G modules is not only important from a future-proofing perspective, but it also provides systems with a substantial increase in speed and a huge reduction in latency, as low as 1ms down from the 40ms available on existing 4G technologies. This improvement means that information gathered by sensors can be transmitted and received in almost real-time allowing for decisions to be made and acted on much more quickly.”

Impulse Embedded can configure the ICO300-83M to customer’s exact specifications in their UK-based engineering facility with a choice of memory, storage, peripheral cards and embedded operating system. Impulse Embedded creates reliable, repeatable, and revision-controlled systems aimed toward reducing overall project costs and development time.

http://www.impulse-embedded.co.uk

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Single-stage flyback controllers from Infineon shape up smart LED lighting

Thu, Jul 22, 2021

Three single-stage flyback LED controllers for constant output voltages have been introduced by Infineon, in anticipation of increased demand for dimmable and intelligent LED systems.

The ICL8800, ICL8810 and ICL8820 single-stage flyback LED controllers meet performance requirements for LED lighting applications, such as LED drivers and luminaires up to 125W, smart lighting and emergency luminaires. The ICs can also be used in adapters and chargers, flat TVs as well as PCs and monitors up to 125W.

The three IC versions offer benchmarking performance for power factor correction and total harmonic distortion at full load and low load conditions, says Infineon. They are optimised as secondary side regulated (SSR) constant voltage (CV) output flyback controllers and are also suitable for primary side regulation (PSR). Critical conduction mode (CCM) and quasi-resonant mode (QRM) with smart valley hopping ensure low EMI without compromising light quality, says the company.

ICL8800 is the basic model, ICL8810 has an integrated burst mode that allows a very low standby power consumption of less than 100mW and flicker-free deep dimming down to 0.1 per cent. This makes the ICL8810 suitable for smart lighting applications in connection with microcontrollers. The ICL8820 is additionally equipped with an integrated DC-input jitter function to improve EMI performance and supports the fulfilment of EMI requirements in DC operation. The ICL8820 model is claimed to ease EMI certification in the design of emergency lighting LED driver applications without additional circuitry.

The ICL88xx family offers an external start-up circuit control signal with a set of protection features, including a power limitation and secondary side over-voltage protection. The ICs require a minimum number of external components, claims Infineon.

The gate driver current enables designs up to 125W with MOSFETs. System performance and efficiency can be further optimised using Infineon’s CoolMOS P7 power MOSFETs.

All three single-stage flyback LED controller variants are available in PG-DSO-8 packages and are available for order now.

http://www.infineon.com

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Dead reckoning module provides navigation in all environments

Rutronik adds Nordic Semiconductor’s PMIC

IIoT gateway operates in hazardous environments says Impulse Embedded

Single-stage flyback controllers from Infineon shape up smart LED lighting

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