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Isolated DC-DC Converters TargetRailway EN50155 Systems Vicor's new DCM2322 ChiP family is a lower-power and smaller package variant of its DCM3623 family and provides power system engineers a smaller footprint option with input voltage ranges that meet multiple EN50155 standards. Modern rail infrastructure requires a wide range of DC-DC converters to power a variety of new safety systems and passenger services, says Vicor, as well as creating a need for performance improvements in existing systems for both freight and commuter markets. Power density, efficiency and ease of use are critical considerations when designing isolated, regulated DC-DC converter systems for modern rail applications. Packaged in a 22 mm x 23 mm x 7 mm ChiP, the new series offers engineers wide input voltage ranges of 43 V - 154 V and two more narrow input voltage ranges of 14 V - 72 V and 9 V - 50 V, with power levels ranging from 35 W to 120 W and efficiencies up to 90.5%.
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Analog IC Portfolio Pushes Low Power,Size and Accuracy Barriers
Maxim Integrated Products has rolled out with three analog ICs designed to reduce power consumption and solution size, while improving measurement accuracy. The MAX6078A voltage reference IC, the MAX16155 nanoPower supervisor and the MAX16160 voltage monitor and reset IC achieve high performance for cloud infrastructure, IoT, intelligence-at-the-edge, on-device AI, as well as smart and emerging applications in consumer, communications, industrial and medical markets.
The MAX6078A features ±0.04% initial accuracy, 20% more accurate than similar competitive devices, says Maxim. The MAX16155 consumes just 400 nA typical, or only 4% of the supply current that competitive solutions require, providing reliable system protection for virtually no power according to the company. Maxim claims that the MAX16160 is the only 4-channel voltage monitor and reset IC that uniquely asserts reset low without requiring VCC rail if any of the rails is above 1 V.
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2,000 W Modular Power Supplies Offer Full MoPPs Isolation TDK has announced the introduction of the TDK-Lambda brand QM8B modular power supplies rated at up to 2,000 W. This further extends the QM series which can provide 550 W to 2,000 W output power. The QM8B models are available with up to 18 outputs, have full MoPPs (Means of Patient Protection) isolation and low acoustic noise. With medical and industrial safety certifications, the power supplies are suitable for use in medical, test and measurement, communications and broadcast equipment. This avoids the need for multiple power supplies in systems requiring a large number of independent voltages.
Accepting a wide range 90 to 264 Vac, 47-63 Hz input (440 Hz with reduced PFC), the QM8B delivers 1,200 W at low line and 2,000 W with a high line 180-264 Vac input. With its modular construction, the series can be configured using a simple on-line configurator to provide 1 to 18 independently regulated outputs and include individual output good signal and remote on/off functions. The QM series module output voltages range from 2.8 V to 105.6 V and have output power levels from 300 W to 1200 W.
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Win a Free Subscription to Circuit Cellar Magazine! This week's newsletter raffle is for a 1-year free subscription to Circuit Cellar! Drawing ends at midnight this coming Friday. Circuit Cellar is the premier media resource for professional engineers, academic technologists, and other electronics technology decision-makers worldwide involved in the design and development of embedded processor- and microcontroller-based systems across a broad range of applications. ENTER THE DRAWING HERE And congratulations to last week's raffle winner, Tito S., who won a 2018 Digital Archive of Circuit Cellar magazine. Thanks to all who participated! |
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PoE Solution Supports Pre-Standard and 802.3bt-2018 Devices
As the industry adopts the latest generation of PoE technology for managing data and power over a single Ethernet cable, users face the challenge of making pre-standard powered devices (PDs) work alongside new IEEE 802.3bt-2018-compliant PDs in an existing Ethernet infrastructure. Microchip Technology has eased the transition with IEEE 802.3bt-2018-compliant PoE injectors and midspans for users and power sourcing equipment (PSE) chipsets for system developers that enable both pre-standard and IEEE-compliant PDs to receive up to 90 W of power without changing switches or cabling.
Many proprietary solutions were brought to market through 2018 that support specifications such as Universal PoE (UPOE) and power over HDBaseT (PoH), says Microchip. They meet the higher powering needs of two-pair and four-pair PDs including kiosks, POS terminals, thin clients, 802.11ac/ax access points, small cells, smart buildings, industrial automation systems and connected LED lighting. During this period Microchip has offered a PSE chipset for implementing the widely adopted PoH four-pair power standard for 95W PDs. It is now the first to also offer an IEEE 802.3af/at/bt chipset that enables pre-standard switches to interoperate with new IEEE 802.3bt-2018-compliant products.
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NFC Configuration ICs Can Program LED Drivers Wirelessly Infineon Technologies has developed the NFC-PWM series NLM0011 (shown) and NLM0010 for fast and cost-effective implementation of NFC programming for LED drivers. NFC programming is an emerging technology designed to replace the labor-intensive "plug-in resistor" current setting method via contactless NFC interface. Besides improving the operational efficiency by enabling automatic programming in the manufacturing line, it creates significant flexibility in the value chain, says the company. With this it reduces the LED driver variants, simplifies the selection of LED modules and allows end-of-line configuration.
The devices are NFC wireless-configuration ICs with configurable PWM output, primarily designed for LED applications. They enable cost-effective NFC programming implementation by using a PWM signal directly to control the analog driver IC. Comparing to the microcontroller-based solution the system BOM cost is reduced compared to MCU-based solutions.
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Enter to Win VersaLogic's New Android Demo/Eval Kit! VersaLogic's new Android Eval Kit provides an easy way to evaluate Arm/Android performance for rapid design and application development. It includes everything needed to run the Android OS on a high-reliability embedded system, including an Arm-based embedded computer board and a touch-screen display. No additional carrier cards, companion boards or other add-ons are needed. The Android Eval Kit is designed to save start-up time and allow the user to focus on their product development. GO HERE TO ENTER THE DRAWING
Industry News & Recent Posts
Aaeon's M.2 and mini-PCIe "AI Edge Computing Modules" are based on Kneron's energy-efficient, dual Cortex-M4-enabled KL520 AI SoC, which offers 0.3 TOP NPU performance on only half a Watt. Aaeon took an early interest in edge AI acceleration with Arm-based Nvidia Jetson TX2 based computers such as the Boxer-8170AI. ... Continue reading → ...» Advantech has launched a rugged "WISE-710" IoT protocol gateway that runs Linux and its WISE-PaaS/EdgeLink stack on the i.MX6 DualLite and offers a crypto chip, 2x GbE, mini-PCIe, 3x serial/CAN, DIO, and optional analog and temperature interfaces. Advantech previewed its WISE-710 gateway back in May and has now announced its release on Design World. ... Continue reading →...»
VersaLogic has announced a new SWaP-optimized embedded SBC with ECC memory. Named "Harrier", this new embedded computer features the Intel's latest 5th generation Apollo Lake Atom processors with error-correcting memory. The Harrier includes a TPM 2.0 security chip, on-board power regulation, USB and Ethernet I/O ports and Mini PCIe expansion sockets. ... Continue reading →...»
Nordic Semiconductor has announced that PowerFilm, a company specializing in custom solar solutions, employs Nordic's nRF52832 Bluetooth Low Energy (Bluetooth LE) SoC in its "Indoor Solar Development Kit with Nordic BLE" for IoT developers, engineers and hobbyists looking to power electronics by harvesting indoor light energy. Once harvested, the energy is stored in a rechargeable or capacitor bank. ... Continue reading →...»
Responding to demands for high-performance and integrated solutions, sensor manufacturers continue to up their game. And as IoT and intelligent edge applications proliferate, sensors are moving to smaller, low-power designs to meet the new requirements of those systems. ... Continue reading →...» |
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