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Circuit Cellar's editorial team comprises professional engineers, technical editors, and digital media specialists. You can reach the Editorial Department at editorial@circuitcellar.com, @circuitcellar, and facebook.com/circuitcellar

Raspberry Pi I/O Add-On Targets Aquaponics and Hydroponics

By Eric Brown

We knew it was only a matter of time before we covered a board from Luxembourg, and that time has come. Rodange, Luxembourg based Upsilon Engineering, which is led by embedded engineer Yann Leidwanger, has gone to Kickstarter to launch its BioControle add-on board for the Raspberry Pi 3. The board can be used as a general purpose I/O and DAQ add-on but is specifically designed as a control board for aquaponics and hydroponics gardening.

 
BioControle prototype with Raspberry Pi 3 (left) and bare PCB on its own
(click images to enlarge)
The BioControle, which we spotted on Geeky Gadgets is available for 76 Euros ($89) through Oct. 17. Assuming Upsilon can raise another $7,000, shipments are expected in November.


BioControle controlling aquaponics system
(click image to enlarge)
The BioControle is a more general purpose offering than the recent Autogrow OpenMinder root zone monitor HAT for the Raspberry Pi, which includes software that helps manage water, pH, and nutrient usage in hydroponic farming. The proof of concept was developed for an aquaponics project at the Thilab FabLab based in Thionville, France. Leidwanger then built a prototype with additional features that also supports hydroponics and other projects that need a mix of servos, sensors, relays, and I/Os.

 
BioControle detail views
(click images to enlarge)
Specifications listed for the BioControle include:

  • 4x power relays outputs
  • 2x inputs/outputs for temperature and humidity sensors
  • 2x logical inputs and 2x logical outputs
  • Real Time Clock
  • EEPROM
  • 12-bit ADC
  • 12-bit DAC
  • 2x power servomotor outputs

All interfaces are said to be protected against reverse polarity, undervoltage, and overvoltage. It also offers “full protection between your application and your Raspberry Pi” with the help of buffers, level shifters, protection diodes, and serial protection resistance,” says Upsilon. The board provides 5 V and 3.3 V power supply supervisors “connected on LED and Raspberry Pi input,” and can run on a standard 230VAC adapter.

The design includes a cutout that enables easy access to the Raspberry Pi 3’s MIPI-CSI and DSI headers. The open source BioControle is available with schematics, pinout, and Python example codes

 
BioControle block diagram (left) and upcoming v2.0 design
(click images to enlarge)
The prototype has been thoroughly bug-tested, but Upsilon needs funding to build a v2.0 model that improves the servomotor headers, which are designed to dispense fish food on aquaponics systems. It also removes a second power supply header and several capacitors.

Further information

The BioControle is available on Kickstarter for 76 Euros ($89) through Oct. 17. Volume discounts are available, and assuming the project is funded, shipments are expected in November. More information may be found on the BioControle Kickstarter page and the Upsilon Engineering website.

This article originally appeared on LinuxGizmos.com on September 18.

Upsilon Engineering | www.upsilon-engineering.lu

Variscite’s Latest DART Module Taps Headless i.MX6 ULZ

By Eric Brown

Variscite is spinning out yet another pin-compatible version of its 50 mm x 25 mm DART-6UL computer-on-module, this time loaded with NXP’s headless new i.MX6 ULZ variant of the single Cortex-A7 core i.MX6 UL. Due for a Q4 launch, the unnamed module lacks display or LAN support. It’s billed as “a native solution for headless Linux-based embedded products such as IoT devices and smart home sensors requiring low power, low size and rich connectivity options.”


DART-6UL with iMX6 ULZ 
(click image to enlarge)
The lack of display and LAN features mirrors the limitations of the i.MX6 ULZ, which NXP refers to as a “cost-effective Linux processor.” The headless, up to 900  MHz Cortex-A7 ULZ SoC offers most of the I/O of the of the i.MX6 UL/ULL, including ESAI, S/PDIF, and 3x I2S audio interfaces, but it lacks features such as the 2D Pixel acceleration engine and Ethernet controllers.


NXP i.MX6 ULZ block diagram
(click image to enlarge)
Last year, Variscite spun the Linux-ready DART-6UL into a faster, 696MHz v1.2 upgrade, which added the option of NXP’s power-efficient i.MX6 ULL SoC in addition to the i.MX6 UL. A few months later, it followed up with a DART-6UL-5G model that boasts an on-board, “certified” WiFi/Bluetooth module with dual-band, 2.4 GHz/ 5 GHz 802.11ac/a/b/g/n.


DART-6UL-5G (left) and DART-6UL v1.2
(click images to enlarge)
The upcoming i.MX6 ULZ based version, which we imagine Variscite will dub the DART-6ULZ, has the same Wi-Fi-ac module with Bluetooth 4.2 BLE. Like the latest versions of the other DART-6UL modules, the module can be clocked to 900 MHz.

The “cost effective” ULZ version differs in that it lacks the other models’ touch-enabled, 24-bit parallel RGB interface and dual 10/100 Ethernet controllers. Other subtracted features compared to earlier models include dual CAN, parallel camera, and “extra security features.”

The new module is also limited to a 0 to 85°C range instead of being available in 0 to 70°C or -40 to 85°C versions. The i.MX6 ULZ SoC itself has a slightly wider range of 0 to 95°C.

The pin compatible DART-6UL with iMX6 ULZ will offer the i.MX6 ULZ SoC with “optional security features,” which include TRNG, AES crypto engine, and secure boot. The 50 mm x 25mm module will ship with 512MB DDR3L, which was the previous maximum of the now up to 1 GB RAM DART-6UL. The storage range is similar, with a choice 512 MB NAND and up to 64 GB eMMC.

The DART-6UL with i.MX6 ULZ will support 2x USB 2.0 OTG host/device ports, audio in and out, and UART, I2C, SPI, PWM, and ADC interfaces. OS support is listed as “Linux Yocto, Linux Debian, Boot2QT.”

The ULZ version of the DART-6UL will support existing development kits, which are based on the VAR-6ULCustomBoard. This 100 mm x 70 mm x 20 mm carrier board offers a microSD slot, a USB host port, and micro-USB OTG and debug ports, as well as features that are inaccessible to the ULZ, including dual GbE, RGB, LVDS, CAN and camera interfaces.

This week Variscite announced another DART module based on another new NXP SoC. The DART-MX8M-Mini module taps a 14nm-fabricated i.MX8M Mini SoC variant of the i.MX8M with one to four 2GHz Cortex-A53 cores and a 400 MHz Cortex-M4, plus scaled down 1080p video via MIPI-DSI.

Further information

The DART-6UL with iMX6 ULZ will be available in the fourth quarter. The DART-6UL/ULL/ULZ product page notes that the lowest, volume-discounted price is $24, which likely pertains to the ULZ part. More information may be found in Variscite’s announcement.

This article originally appeared on LinuxGizmos.com on September 19.

Variscite | www.variscite.com

Rugged COM Express Type 10 Module Sports Intel Apollo Lake-I

MEN Micro has announced the CM50C, a low-power, compact, Rugged COM Express module that was developed around the Intel Atom E3900 series of processors. Due to the low power consumption, the virtualization support of the processor and the safe board management controller, the module is a multifaceted solution for individual designs in harsh environments and safety-critical applications.

The CM50C is a COM Express Mini module for rolling stock, public transportation and industry applications. It is compatible to COM Express Type 10 Pin-Out and conforms to the VITA 59 standard which specifies the mechanics to ensure reliable operation in harsh environmental conditions. In accordance with the Rugged COM Express standard, the CM50C is embedded in a solid aluminum frame that protects the electronics from environmental influences such as humidity, dust, vibrations or EMC radiation and also enables operation in the extended temperature range from -40 to +85°C via conduction cooling.

Based on the Intel E3900 CPU series with a low power dissipation of 7 W to 16 W, the CM50C provides a scalable performance up to 4 cores and integrated quality graphics. It also offers Intel VT-x virtualization support. This allows to run multiple applications on a single hardware platform, saving physical hardware and costs.

The board management controller provides enhanced reliability, reduced downtime and is certifiable up to SIL 2. With the Trusted Platform Module and the secure/ measured booting features fast cryptographic execution is supported. The CM50C comes with a large variety of interfaces, including, for example, Digital Display Interfaces, HD Audio, PCI Express and Gigabit Ethernet. This enables implementing many functions on a very small form factor.

The processor’s 15 years long-term availability ensures an extended product life and future-safety for a wide range of applications. For less demanding applications, a standard COM Express variant without frame is also available.

Features:

  • Intel Atom E3900 series
  • Up to 8 GB DDR3 RAM with ECC
  • Intel VT-x virtualization support
  • Rugged COM Express Mini (VITA 59 RCE) type 10
  • Trusted Platform Module
  • Board Management Controller (SIL 2 certifiable)
  • Conduction cooling
  • -40°C to +85°C

MEN Micro | www.menmicro.com

1U Net Service Appliance Embeds AMD EPYC 7000 Processor

WIN Enterprises has announced the PL-81280, a 1U high-performance rack-mounted networking system designed for use in the cloud and datacenter. The appliance supports the AMD Naples EPYC 7000 SoC processor. The System on Chip (SoC) processor features integrated security and graphics capabilities.
The EPYC processor achieves high computing performance offering up to 32 processing cores. Big data analytics and in-memory databases are accelerated with the additional parallelism enabled by this microarchitecture. Overall throughput is optimized in data intensive environments by two standard PCIe X16 slots that support two 100 Gbit Ethernet adapter cards.

The PL-81280 supports up to 4 NIC modules and has multiple Ethernet module bays that enable flexible port configuration that include 1/10/40 Gigabit fiber and Gigabit copper with BYPASS option.Strong IO elements include Ethernet ports for management and optional IPMI, a console port, two USB 3.0 ports, a Graph LCD module, 5-key interface, and LEDs for power/HDD/2 x GPIO. In addition, PL-81280 supports one 3.5-inch or two 2.5-inch SATA HDDs/SSDs, one m-SATA and two M.2 2280/22110 slots to accommodate basic network storage applications. WIN Enterprises will customize the PL-81280 based on a customer’s more specific application needs.

Features:

  • Supports AMD Naples EPYC™ 7000 Series SoC Processor, LGA4094
  • Eight-channel DDR4 ECC Registered 2400/2667MHz memory
  • Max memory support of 512GB
  • Max support 4x PCIe X8 slots for expansion LAN modules, supporting a maximum of 32 GbE Copper/Fiber ports
  • 1 x 3.5” or 2 x 2.5” HDD/SSD support
  • 1 x riser card for PCIe slot expansion
  • 2 x M.2 2280/22110 and 1 x m-SATA
  • Supports optional IPMI card with VGA

WIN Enterprises | www.win-ent.com

Fanless Railway Embedded Computer is EN50155-Certified

Kontron has expanded its TRACe family of operational computers designed specifically for the railway market. The Kontron TRACe-B40x-TR, an EN50155 certified fanless generic platform, features the latest Intel Atom E3900 series processors and 6th Generation Intel Core processors. The first released variant is the Kontron TRACe-B404-TR, based on the Intel Atom x5-E3940 quad-core at 1.6 GHz high performance per watt processor, with 8 GB DDR3L memory and 32 GB SLC eMMC Flash. Other variants will be made available later, based on Intel Atom x7-E3950 quad-core at 1.6 GHz, Intel Core i3-6100U, or Intel Core i7-6600U processors when higher performance is needed.

Kontron TRACe-B40x-TR has two independent networks (2x LAN with M12 connectors). It comes with an ultra-wide range power supply (from 24 VDC to 110 VDC nominal input voltage range, including tolerance range of +/- 40% required according to EN 50155, meaning a voltage range between 144 VDC and 154 VDC) adapted to all types of railway vehicles from light rail vehicles to high speed trains.

The front plate operational connectors are electrically insulated in compliance to EN50155 standard with lockable M12 connectors. The rear plate hosts standard connectors (display port, USB 3.0/2.0, serial line) for maintenance purposes and is protected from dust and water during operations with a cover plate. Thanks to its modularity, the TRACe-B40x-TR product also accommodates several optional wireless interfaces (such as Wi-Fi, 4G/LTE, and GNSS), field busses (RS422/485, CAN, MVB, and others), SATA devices (up to two 2.5’-inch SSD) and/or additional optional I/Os (such as DIOs, Audio, and USB) to match any railway applications such as on-board CCTV, entertainment/infotainment PIS or TCMS. Samples of the Kontron TRACe B404-TR are available now.

Kontron | www.kontron.com

Mouser Stocking Microchip’s MPLAB Snap Development Tool

Global distributor Mouser Electronics is now stocking the MPLAB Snap in-circuit debugger and programmer from Microchip Technology. The MPLAB Snap provides affordable, fast, and easy debugging and programming of most PIC, AVR and SAM flash microcontrollers and dsPIC digital signal controllers (DSCs), using the powerful graphical user interface of MPLAB X integrated development environment (IDE).
The Microchip MPLAB Snap board, available from Mouser Electronics, features a powerful 32-bit 300 MHz SAM E70 Arm Cortex-M7 based microcontroller for quicker debug iterations. The debugger system executes code, like an actual device, because it uses the target device’s built-in emulation circuitry, instead of a special debugger chip. All available features of the device are accessible interactively and can be set and modified by the MPLAB X IDE interface. Additionally, the board matches the silicon clocking speed of the target device, allowing engineers to run programs at the device’s maximum speed.

The board connects to a computer via high-speed USB 2.0 interface and can be connected to the target device through an 8-pin single in-line (SIL) header. The connector uses two device input/output (I/O) pins and the reset line to implement in-circuit debugging and In-Circuit Serial Programming (ICSP™) capability. Along with its support for a wide target voltage range of 1.20 V to 5.5 V, the MPLAB Snap supports advanced interfaces such as 4-wire JTAG and Serial Wire Debug with streaming data gateway. It is also backward compatible for demo boards, headers and target systems using 2-wire JTAG and ICSP.

Microchip Technology | www.microchip.com

Mouser Electronics | www.mouser.com

ST and TomTom Team Up for Geolocation Tool Solution

STMicroelectronics and TomTom (TOM2 ), a location technology specialist, have  announced a package of development tools in the STM32 Open Development Environment that connect directly to TomTom Maps APIs (Application Programming Interfaces) for location, tracking, and mapping data services, accelerating product development and reducing time-to-market and development costs for developers.

This development package consists of an STM32 Discovery host board for 2G/3G cellular-to-cloud connectivity (shown), a GNSS expansion board based on ST’s Teseo satellite navigation technology, and a software Function Pack that connects your Internet-of-Things (IoT) node via a cellular network to a range of TomTom Maps APIs. With this hardware and software package and a TomTom developer account, developers can quickly add location-based services to their IoT and Smart City applications. Among these services are the translation of GPS coordinates into a street address inside a map (Reverse Geocoding), retrieval of nearby point of interests, and the production of accurate navigation directions.

In addition to the STM32 family of Arm Cortex-M core microcontrollers, the development tools leverage ST’s multi-constellation Teseo positioning-receiver technology to perform all positioning operations including tracking, acquisition, navigation and data output.

For mapping data and services, technology companies, geographical information systems (GIS) providers, government bodies, and traffic-management institutions across the globe rely on TomTom to deliver industry-leading mapping products that create location-enabled applications.

STMicroelectronics | www.st.com

48 V ZVS Buck Regulator Gets BGA Option

Vicor now offers the PI354x-00-BGIZ as its latest addition to the company’s 48V Cool-Power ZVS Buck Regulator portfolio, offering a new BGA package option to the existing PI354x-00-LGIZ LGA series. PI354x Cool-Power ZVS Buck Regulator’s high performance ZVS topology enables 48V direct to PoL without sacrificing performance. With step-down regulation from a higher voltage source, engineers can deploy more efficient power distribution architectures, reduce I2R losses, and eliminate costly and inefficient intermediate conversion stages.

Operating from 36 VIN to 60 VIN, the PI354x regulates an output voltage ranging from 2.2 V to 14 V and delivers an output current delivery up to 10 A. Power delivery can be further increased by using single wire current sharing without any additional components. The PI354x series is designed for a wide range of applications leveraging higher voltage distribution, including: telecom, network infrastructure, data centers, industrial, battery and lighting applications.

When used in conjunction with the Vicor front-end products and factorized power products, the PI354x series enables a complete power chain from AC or HVDC (200 V+) source to PoL. The PI354x series expands and enhances the Vicor Power Component Design Methodology.

Vicor | www.vicorpower.com

Next Newsletter: Embedded Boards

Coming to your inbox tomorrow: Circuit Cellar’s Embedded Boards newsletter. Tomorrow’s newsletter content focuses on both standard and non-standard embedded computer boards that ease prototyping efforts and let you smoothly scale up to production volumes.

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Our weekly Circuit Cellar Newsletter will switch its theme each week, so look for these in upcoming weeks:

Analog & Power. (10/2) This newsletter content zeros in on the latest developments in analog and power technologies including DC-DC converters, AD-DC converters, power supplies, op amps, batteries and more.

Microcontroller Watch (10/9) This newsletter keeps you up-to-date on latest microcontroller news. In this section, we examine the microcontrollers along with their associated tools and support products.

IoT Technology Focus. (10/16) Covers what’s happening with Internet-of-Things (IoT) technology–-from devices to gateway networks to cloud architectures. This newsletter tackles news and trends about the products and technologies needed to build IoT implementations and devices.

What are the 5 Biggest Myths About Developing Embedded Vision Solutions?

Are embedded vision solutions complex? Expensive? Strictly about software? Get answers to your top questions about developing embedded vision solutions, right from Avnet & Xilinx.


We’re at the moment of truth with embedded vision systems as scores of new applications means designs must go up faster than ever—with new technologies dropping every day.

But isn’t embedded vision complex? Lacking scalability? Rigid in its design capability?

Truth be told, most of those ideas are myths. From the development of the first commercially viable FPGA in the 1980s to now, the amount of progress that’s been made has revolutionized the space.

So while it can be complex to decide how you’ll enter an ever-changing embedded vision market, it’s simpler than it used to be. It’s true: Real-time object detection used to be a strictly research enterprise and image processing a solely software play. Today, though, All Programmable devices enable system architects to create embedded vision solutions in record time.

As far as flexibility goes, you’ll find something quite similar. In the past, programming happened on the software side because hardware was preformatted. But FPGAs are more customizable. They contain logic blocks, the programmable components and reconfigurable interconnects that allow the chip to be programmed which allows for more efficiency of power, temperature and design—all without the need of an additional OS.

Ready to bust some more myths around embedded vision? Watch our video breaking down the five biggest myths around embedded vision development.

WATCH NOW >

Fuel-Gauge ICs Target Mobile and Portable Devices

Maxim Integrated Products has announced the MAX17262 single-cell and MAX17263 single-/multi-cell fuel-gauge ICs. The MAX17262 features just 5.2 µA quiescent current, along with integrated current sensing. The MAX17263 features just 8.2 µA quiescent current and drives 3 to 12 LEDs to indicate battery or system status. Such LEDs are useful in rugged applications that do not feature a display.

According to the company, electronic products powered by small Li-ion batteries struggle to extend device run-times to meet user expectations. Factors such as cycling, aging and temperature can degrade Li-ion battery performance over time. Inaccurate state of charge (SOC) data from an unreliable fuel gauge forces the designer to increase the battery size or compromise the run-time by prematurely shutting the system down, even if there is usable energy available.
Such inaccuracies can contribute to a poor user experience due to abrupt shutdown or an increase in device charging frequency. Designers also strive to get their products to market quickly due to competitive demands. Maxim’s two new fuel-gauge ICs help designers meet end-user performance expectations and time-to-market challenges.

The MAX17262 and MAX17263 combine traditional coulomb counting with the novel ModelGauge m5 EZ algorithm for high battery SOC accuracy without requiring battery characterization. With their low quiescent current, both fuel-gauge ICs prevent current loss during long periods of device standby time, extending battery life in the process.

Both also have a dynamic power feature that enables the highest possible system performance without crashing the battery. In the MAX17262, an integrated Rsense current resistor eliminates the need to use a larger discrete part, simplifying and reducing the board design. In the MAX17263, the integrated, push-button LED controller minimizes battery drain and alleviates the microcontroller from having to manage this function.

The ICs provide accurate time-to-empty (1%) and time-to-full SOC data across a wide range of load conditions and temperatures, using the proven ModelGauge m5 algorithm. The ModelGauge m5 EZ algorithm eliminates the time-consuming battery-characterization and calibration process. A quiescent current of just 5.2 µA for the MAX17262 and 15/8.2 µA for MAX17263 extends run-time, Rsense current resistor (voltage and coulomb counting hybrid) reduces overall footprint and BOM cost, eases board layout

At 1.5 mm × 1.5 mm IC size, the MAX17262 implementation is 30% smaller in size compared to using a discrete sense resistor with an alternate fuel gauge; at 3 mm × 3 mm, MAX17263 is the smallest in its class for lithium-ion-powered devices. The single-/multi-cell MAX17263 also drives LEDs to indicate battery status on a pushbutton press or system status on system microcontroller commands

The MAX17262 is available at Maxim’s website for $0.95 (1000 pieces, FOB USA); the MAX17263 is also on the site for $1.49 (1,000 pieces). Both parts are also available via select authorized distributors. The MAX17262XEVKIT# evaluation kit is available for $60; the MAX17263GEVKIT# is available for $60.

Maxim Integrated | www.maximintegrated.com

Power Supplies Lean Toward an Application Focus

Medical and More

Your choice of power supply can have a major impact on your embedded system’s capabilities. Power supply innovators are smoothing the way with devices designed to match application needs.

By Jeff Child, Editor-in-Chief

Arguably the unsung heroes of any embedded system design, power supplies and converters are critical enablers for meeting today’s needs. As embedded systems pack ever more intelligence into smaller spaces, power has direct implications on the size, cooling and mobility of any system.

To keep pace, power supply vendors continue to roll out more efficient products, new partitioning strategies and more compact solutions. In tandem to those trends, there’s a growing demand to reduce size, weight and power of system electronics. Driving those demands is a desire to fit more functionality in the same space or into a smaller footprint.

If you look at the power supply products released over the last 12 months, there’s been a definite uptick in new products that have some sort of application or industry focus. While this hasn’t diminished the role of general purpose power supplies, the trend has been toward supplies that include either certifications, special performance specs or tailored packaging intended for a specific application area such as medical, industrial, railway or the IoT.

Power Supplies for Medical

An example along those lines in the medical space is the TDK-Lambda brand CUS150M series of AC-DC 150 W rated power supplies announced early this year by TDK (Figure 1). The device has the capability of operating in ambient temperatures of up to 85°C without the need for forced air cooling. Certified to medical and ITE standards for Class I and II (no earth ground connection) operation, the product meets both curve B radiated and conducted emissions. CUS150M target applications include medical, home healthcare, dental, test and measurement, broadcast and industrial equipment.

Figure 1
The CUS150M series of AC-DC 150 W rated power supplies are certified to medical and ITE standards for Class I and II operation. It meets both curve B radiated and conducted emissions.

Output voltage options include 12 V, 15 V, 18 V,  24 V, 28 V and 36 V models. The CUS150M operates from an 85 VAC to 264 VAC input and has operating efficiencies up to 91%. Off-load power consumption is less than 0.5 W and a 10 V to 12 V, 0.5 A fan supply is fitted as standard.

The open frame version is in the industry standard 50.8 mm x 101.6 mm (2″ x 4″) footprint with a height of 31.5 mm. Convection cooled it can deliver 120 W at 40°C, or with forced air cooling 150 W at 50°C, 140 W at 70°C and 75 W at 85°C. With the U-channel construction variant, measuring 64 mm x 116 mm x 38.5 mm, the CUS150M can be conduction cooled via a cold plate to deliver 150 W at 50°C, 100 W at 70°C and
50 W at 80°C. Cover or top fan options are also available.

Input to output isolation is 4 kVAC (2xMoPP (Means of Patient Protection)), input to ground 1.5 kVAC (1xMoPP) and output to ground 1.5 kVAC (1xMoPP) making the series suitable for B and BF rated medical equipment. Touch current is a maximum of 100 µA, with leakage current less than 250 µA. 5,000 m is the maximum operating, transportation and storage altitude.

Encapsulated Converters

Also targeting medical applications, Minmax Technology offers its Minmax MAU01M / MSCU01M series, a range of high performance 1 W medical safety approved DC-DC converters with encapsulated SIP-7 and SMD packages. They are specifically designed for medical applications. The series includes models available for input voltages of 4.5 VDC to 5.5 VDC, 10.8 VDC to 13.2 VDC, and 21.6 to
26.4 VDC. The I/O isolation is specified for 4,000 VAC with reinforced insulation and rated for a 300 VRMS working voltage.

Additional features include short circuit protection, a low leakage current of 2 μA max. and operating ambient temperature range of -40°C to 95°C. This is achieved without de-rating and with a high efficiency of up to 84%. The MAU01M / MSCU01M series conforms to the 4th edition medical EMC standard. It meets 2xMoPP per 3rd edition of IEC/EN 60601-1 and ANSI/AAMI ES60601-1. The MAU01M / MSCU01M series offers an economical solution for demanding medical instrument applications that require a certified supplementary and reinforced insulation system to comply with latest medical
safety approvals under the 2xMoPP requirements.

Meanwhile, CUI’s Power Group added five open frame series products, ranging from
180 W up to 550 W, to its line of internal AC-DC medical power supplies (Figure 2). Certified to the medical 60601-1 edition 3.1 safety standards for 2xMoPP applications and 4th edition EMC requirements, the VMS-180, VMS-225, VMS-275, VMS-350 and VMS-550 series feature high efficiency up to 94% and high-power densities up to 30 W/in3. The devices are housed in 2″ x 4″ (50 mm x 101 mm) and 3″ x 5″ (76 mm x 127 mm) packages with profiles measuring as low as 0.75″ (19 mm), providing a compact, high density solution fokproviding a compact, high density solution for medical diagnostic equipment, medical monitoring devices and dental applications.

Figure 2
The VMS-180, VMS-225, VMS-275, VMS-350 and VMS-550 series power supplies are certified to the medical 60601-1 edition 3.1 safety standards for 2xMoPP applications and 4th edition EMC requirements.

All of these VMS series supplies provide output voltage options from 12 VDC to 58 VDC, feature wide universal input voltage ranges from 80 VAC to 264 VAC and offer no-load power consumption as low as 0.5 W. The 180 W to 550 W models also carry an input to output isolation of 4,200 VAC with leakage current ratings as low as 0.3 mA at 230 VAC. Operating temperatures range at full load from -40°C up to +50°C with forced air cooling, derating to 50% load at +70°C.

Other features include protections for over voltage, over current and short circuit, along with power factor correction and a 12 VDC / 500 mA fan output. These medical power supplies further meet EN 55011 Class B limits for conducted and radiated emissions and achieve an MTBF of 3.37 million hours, calculated per Telcordia SR-332 Issue 3. …

Read the full article in the September 338 issue of Circuit Cellar

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IIoT Evolution: An Approach To Reuse And Scale Your IIoT Technology Investment

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Apollo Lake Pico-ITX SBC Sports Dual GbE Ports

AAEON has released the PICO-APL4, a compact SBC that features onboard memory and storage along with dual Gbit Ethernet support. The board is well suited for factory automation and IoT gateway systems. AAEON’s latest PICO form factor board is powered by an Intel Atom, Pentium N4200 or Celeron N3350 processor. By fitting the controller with up to 4 GB of onboard DDR3L memory and up to 64 GB of onboard eMMC storage, AAEON has made the board more resistant to the shocks and vibrations regularly experienced in industrial settings. This also cuts application development times because system developers don’t need to test the compatibility of external memory and storage.

The flexible PICO-APL4 houses USB ports and connectors, COM ports, a HDMI port and optional eDP. There’s also a 4-bit DIO to manage peripherals and an optional four-lane MIPI-CSI. Expansion is easily achieved with M.2 B and E keys enabling the connection of additional storage and WiFi/Bluetooth modules. Through an optional board-to-board interface, customers can also extend the IO interface and add a larger DIO.

Features:

  • Intel Atom/ Pentium N4200/ Celeron N3350 Processor SoC
  • Onboard DDR3L 2 GB (Optional to 4 GB)
  • Onboard Storage eMMC 16 GB (Optional to 32 GB / 64 GB)
  • Dual Gigabit Ethernet Support
  • HDMI 1.4b, eDP (Optional) for Display
  • BIO Reserved (Optional)
  • USB 3.0 x 2, USB 2.0 x 2, SATA 6.0 Gb/s x 1
  • 2 B Key (2280) x 1, M.2 E Key (2230) x 1

AAEON | www.aaeon.com