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USB (5V) to Dual Output +/-15V or +/-12V Step-Up DC-DC Converter

Posted on by mixos

This USB to dual output step-up DC-DC converter has been designed to be used in industrial automation control equipment, sensors, isolated operational amplifiers and test & measurement equipment that require bipolar supply voltages. The module provides +/-15V or +/-12V DC load current up-to +/-100mA. An onboard PCB solder jumper is provided to set the output voltage 15V or 12V DC. The project typically provides 75 to 82% efficiency over most of the load range. It operates with current-mode feedback at 200Khz.

USB (5V) to Dual Output +/-15V or +/-12V Step-Up DC-DC Converter – [Link]

UCC12040/50 3 kVRMS and 5 kVRMS Isolated DC/DC Converters

Posted on by mixos

Texas Instruments’ 500 mW, high-efficiency low-EMI converters are suitable for ultra-high voltage applications.

Texas Instruments’ UCC12040 and UCC12050 DC/DC converters with 3 kVRMS and 5 kVRMS reinforced isolation ratings, respectively, are designed to provide efficient, isolated power to isolated circuits that require a bias supply with well-regulated output voltages. These devices integrate a transformer and DC/DC controller with proprietary architecture to provide 500 mW (typical) of isolated power with high efficiency and low EMI.

The UCC12040/50 converters integrate protection features for increase system robustness. The devices feature an enable pin, synchronization capability and regulated 5 V or 3.3 V output options with the headroom. These low-profile, miniaturized converter solutions are available in a wide-body SOIC package with 2.65 mm height (typical).

Features:

  • High-efficiency with integrated transformer technology
  • Meets CISPR32 Class B EMI limits without ferrite beads across the load range on a 2-layer PCB
  • Output power: 500 mW (typ.)
  • Input voltage: 4.5 V to 5.5 V
  • Package: 16-pin wide-body SOIC with >8 mm creepage and clearance
  • Regulated 5.0 V to 3.3 V output with selectable 400 mV headroom voltage to power an LDO
  • Short circuit recovery
  • Thermal shutdown
  • Extended temperature range: -40°C to +125°C
  • Planned safety-related certification:
    • CSA certification per IEC 60950-1, IEC 62368-1, and IEC 60601-1 end-equipment standards
    • CQC approval per GB4943.1-2011
    • 3,000 VRMS (UCC12040) and 5,000 VRMS (UCC12050) isolation for 1 minute per UL 1577
  • Robust isolation barrier:
    • CMTI: ±100 V/ns (typ.)
    • Isolation rating: 3 kVRMS (UCC12040) and 5 kVRMS (UCC12050)
    • Surge capability: 8 kVPK (UCC12040) and 10 kVPK (UCC12050)
    • Working voltage: 800 VRMS (UCC12040) and 1.2 kVRMS (UCC12050)

more information: www.ti.com

Tektronix Adds Industry-First Technology Which Eliminates Pulse Tuning in New All-In-One 2601B-PULSE System SourceMeter

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2601B-Pulse 3QV RF

Tektronix, Inc. today announced the new 2601B-PULSE System SourceMeter® 10μs Pulser/SMU Instrument, integrating a high-speed current pulser with DC source and measurement functions in one instrument. The new system incorporates PulseMeter™ technology for sourcing current pulses as short as 10μsec at 10A and 10V without the need to manually tune the output to match device impedance up to 3μH. This is critical for minimizing device self-heating, which for optical devices, can result in erroneous measurements and the potential for damaging test equipment. The new 2601B-PULSE also includes all current and voltage source measure unit (SMU) ranges that are available in Keithley’s standard Model 2601B System SourceMeter® (40V, 3A DC, 10A Pulse). In addition, Tektronix is also releasing version 2.3 of Keithley’s Instrument Control Software “KickStart” to support the pulsing function of the 2601B-PULSE.

“The 2601B-PULSE System SourceMeter® affirms Tektronix’s commitment to the advancement of technology through leading test and measurement solutions,” says Chris Bohn, vice president and general manager at Keithley/Tektronix. “This new instrument will bring better testing capabilities for engineers, including those who rely on industry-first technology to take innovative strides in automotive applications, connected vehicles and autonomous driving.”

Advancement in Testing with LIDAR in Mind

The 2601B-PULSE System SourceMeter® was developed to serve the needs and complications of testing vertical-cavity surface-emitting lasers (VCSELs), which are mission-critical for automotive light detection and ranging (LIDAR) applications. The instrument is ideal for testing VCSELs and LEDs, semiconductor device characterization, fault power management testing, surge protection testing and beyond. Built-in dual 1 MS/sec,18-bit digitizers enhance the pulser’s measurement function, enabling users to acquire both pulse current and voltage waveforms simultaneously, without the need to use a separate instrument.

2601B-PULSE Front

Unlike competitive instruments that require pulse tuning to minimize overshoot and undershoot on the pulse, the patent-pending 2601B-PULSE control loop system eliminates the need to manually tune for load changes up to 3 μH. This ensures that the current pulse has no overshoot or ringing when sourcing pulses ranging from 10 μsec to 500 μsec at a current up to 10 amps, resulting in a fast rise time, accurate pulse output and high fidelity.

Industry-First Technology

New PulseMeter™ technology eliminates manual pulse output tuning no matter the amplitude and pulse width to ensure pulse fidelity. For automated system applications, the 2601B-PULSE’s Test Script Processor (TSP®) technology runs complete test programs from inside the instrument for industry-best throughput. In larger, multi-channel applications, the Keithley TSPLink® technology works together with TSP scripting to enable high-speed, pulser/SMU-per-pin parallel testing. Because the 2601B-PULSE System SourceMeter® offers full isolation that does not require a mainframe, it can be easily reconfigured and re-deployed as test applications evolve.

Availability

The model 2601B-PULSE System SourceMeter® is now available worldwide, priced from $13,000.00 US MSRP. Each unit receives Tektronix’s one-year warranty. For more information, visit tek.com/smu-2601b-pulse-sourcemeter.

Mt. Mystery, Achieving the Pin Electronics Trifecta

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As technology evolves, and demand increases for next generation chips in artificial intelligence, deep learning, machine learning, automotive, IoT, healthcare and other areas, technology to provide faster, higher density and lower power ATE (Automatic Test Equipment) semiconductors is required.

At ElevATE, the goal is to provide our customers with pin electronic (PE) solutions innovating with respect to speed, power,and density.  The company’s new pin electronics chip, Mt. Mystery accomplishes this design trifecta:  increasing speed by 50%, reducing power by 67%, and total size by 75%.  Achieving it through 20+ years of ATE expertise, circuit architecture advancement, and the use of modern sub-micron technology.

Density.  In design, Mt. Mystery connotes a compact and efficient use of space.  In technology it also delivers the fine balance between speed and  power.  Whether the latest smartphone, data center blade, or ATE test system the triple challenge of speed, power, and density remains a constant.

The advantage this trifecta brings to the ATE system designer is flexibility across all three axes. 50% speed increase permits the test of the most modern processor, SOC, FPGA, and memory technologies.  67% reduced power permits tripling the number of pins/devices under test without increasing the power budget.  75% reduction in size permits the quadrupling the number pins under test without expanding the overall PCB size versus a current architecture.  Mt. Mystery achieves this trifecta creating the space for the ATE manufacturer to innovate without the hurdles of prior performance constraints.

The technology trifecta delivered by Mt Mystery creates an added benefit.  It permits ElevATE to drive a lower solution cost.  Combined with ElevATEs ISO certification for design and quality this yields a tangible total cost of ownership advantage to our customers.

Mt. Mystery is now available and is a SOC Octal 500Mz integrate pin electronics solution that incorporates every analog function, along with digital support circuitry required to create 8 independent pin channels for automated test equipment.

For information on Mt. Mystery and other ElevATEs PE products, please visit: https://www.elevatesemi.com/products-pin-electronics/

eMCOS® Hypervisor by eSOL: new virtualization function to eMCOS scalable RTOS

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eSOL, a leading global specialist in embedded software systems, announced the immediate availability of its eMCOS® Hypervisor, a ground-breaking embedded virtualization function for the company’s eMCOS scalable real-time operating system (RTOS). eMCOS Hypervisor facilitates the integration of both robust real-time applications on RTOS and feature-rich applications on general-purpose OS – running concurrently on a single hardware platform. Full time and space isolation is provided for each mixed-criticality system.

In terms of architecture, the addition of virtualization to the eMCOS RTOS brings even greater flexibility in mixed-criticality system configuration, making it possible to incorporate general-purpose operating systems like Linux or Android without compromising real-time capabilities and safety.

Among many notable advantages, users can leverage eMCOS’s advanced scheduling capabilities. As eMCOS Hypervisor is implemented by incorporating a mechanism for virtualization into eMCOS POSIX, users can enjoy scheduling features such as load-balancing and time separation, on the same hardware platform as a guest OS.

A further major benefit is the ease of customization relating to the boot sequence of a general-purpose OS. As guest operating systems are started as eMCOS POSIX processes, the boot sequence can be implemented simply as a process start, and is easily customized as sequential start-up and multi-core parallel start-up. The deployment of multiple guest operating systems is performed in a coordinated, optionally load-balanced manner, without impacting the determinism of real-time or safety functions.

Also appealing to users will be the easy porting of drivers. Linux standard Virtio drivers are supported, making it easy to port Linux guests. In addition, drivers that are tightly coupled to the SoC can be ported with ease because the Virtual Machine Monitor (VMM) can filter or passthrough hardware accesses.

Another important point is the robustness of eMCOS Hypervisor against malfunctions and malicious software. The system is designed to minimize and optimize the virtualization mechanism in the more privileged hypervisor and kernel space and perform most processing in the VMM placed in the user space. As a result, abnormalities in the guest OS and virtual machine do not cause catastrophic failures that lead to a system-wide crash.

AAEON Unveils AI and Edge Computing Solutions Powered by NVIDIA

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AAEON, a leading developer of embedded AI and edge-computing solutions, today announced it is unveiling several new rugged embedded platforms—augmenting an already extensive lineup of AAEON AI edge-computing solutions powered by the NVIDIA® Jetson™ platform.

The new AAEON products provide key interfaces needed for edge computing in a small form factor, making it easier to build applications for all levels of users, from makers to more advanced developers for deployments in the field. The new products include:

  • BOXER-8251AI featuring the new Jetson Xavier™ NX, a powerful, compact AI processing module with 384 CUDA® cores, 48 Tensor Cores, and two NVDLA engines capable of running multiple neural networks in parallel and delivering processing speeds up to 21 TOPS
  • BOXER-8240AI featuring the Jetson AGX Xavier, which delivers workstation performance in a compact form factor with 512 CUDA cores and 64 Tensor Cores delivering processing speeds up to 32 TOPS
  • BOXER-8222AI featuring the Jetson Nano™, capable of operating multiple neural networks or processing several high-resolution images at the same time with 128 NVIDIA CUDA cores delivering processing speeds up to 472 GFLOPS

AAEON also introduced a new version of the popular BOXER-8120AI, now featuring the Jetson TX2 4GB module, providing an efficient and cost-effective solution for AI edge computing with 256 CUDA cores delivering processing speeds up to 1.3 TFLOPS.

“Partnering with an AI and edge computing leader like NVIDIA supports our mission to deliver more diversified embedded products and solutions at higher quality standards,” said Alex Hsueh, Senior Director of AAEON’s System Platform Division. “These new offerings powered by the Jetson platform complement our existing lineup of rugged embedded products, providing an optimal combination of performance and price in a smaller form factor for customers to easily deploy across a full range of applications.”

AAEON is a partner in the NVIDIA Jetson ecosystem. The NVIDIA Jetson family of products provides the performance and power efficiency to run autonomous machines faster and with less power in a compact form factor, bringing the power of modern AI, deep learning, and inference to embedded systems at the edge.

Visit AAEON.com for more information about the company’s NVIDIA AI edge computing platforms and to contact an AAEON representative.

USB (5V) to Dual Output +/-15V or +/-12V Step-Up DC-DC Converter

This USB to dual output step-up DC-DC converter has been designed to be used in industrial automation control equipment, sensors, isolated operational amplifiers and test & measurement equipment that require bipolar supply voltages. The module provides +/-15V or +/-12V DC load current up-to +/-100mA. An onboard PCB solder jumper is provided to set the output voltage 15V or 12V DC. The project typically provides 75 to 82% efficiency over most of the load range. It operates with current-mode feedback at 200Khz.

The MAX743 DC-DC converter IC contains all the active circuitry needed to build small, dual-output power supplies. Relying on simple two-terminal inductors rather than a transformer, the MAX743 regulates both outputs independently to within +/-4% overall conditions of line voltage, temperature, and load current.

Features

  • DC Input USB Power Or 5V DC
  • Output Dual 15V Or 12V DC Load Up-to +/-100mA
  • Easy to Use USB Connector
  • J1 PCB Jumper To Set 15V or 12V Output
  • Header Connector for Output
  • Efficiency 75 to 82%
  • Operation Frequency 200 kHz
  • On-Board Power LED
  • PCB Dimensions 56.37 x 19.19mm

Schematic

Parts List

L1, L2 Inductor Selection

Connections

Photos

Video

MAX743 Datasheet

MP2491C Step-Down Converter has programmable current limit

Posted on by mixos

Monolithic Power Systems’ MP2491C step-down converter with programmable current limit and output voltage scaling control

The MP2491C from Monolithic Power Systems is a fully integrated, high-voltage, step-down converter. The device can achieve 6 A of continuous output current with excellent load and line regulation over a wide input supply range. Constant-on-time (COT) control operation provides very fast transient response, easy loop design, and very tight output regulation. Full protection features include overcurrent protection (OCP), hiccup current limiting, output overvoltage protection (OVP), and thermal shutdown. The MP2491C requires a minimal number of readily available, external components, and is available in a QFN-13 (2.5 mm x 3 mm) package.

Features

  • 4 V to 32 V operating input range
  • 0.5 V to 30 V output voltage
  • 6 A output current
  • COT
  • Slew rate control during DVS
  • Low dropout mode operation
  • Two dedicated voltage scaling control pins
  • 33 mΩ/22 mΩ internal MOSFET switches
  • Fixed 490 kHz switching frequency
  • EN shutdown discharge
  • OVP
  • Power good (PG) indication
  • Available in a QFN-13 (2.5 mm x 3 mm) package

more information: www.monolithicpower.com

CZ-3AGx Current Sensors

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AKM’s CZ-3AGx coreless current sensors can be used for many applications, including AC motors and general-purpose inverters.

AKM’s CZ-3AGx series coreless current sensors can achieve both creepage distance and clearance distance greater than 8 mm, corresponding to the UL Safety Standard UL61800-5-1 for industrial equipment. With a wide current detection lineup from ±11.6 A to ±116.6 A, 50 ARMS and two overcurrent protection circuits, the CZ-3AGx series can be used for many applications including AC motors and general-purpose inverters.

The CZ-3AGx series sensors are suitable for sensor signal input to a 3.3 V A/D converter in a 5.0 V input system.

Features

  • Compliant with safety standard UL61800-5-1 (clearance, creepage distance ≥8.0 mm)
  • Certified with safety standards of UL-1577 and IEC/UL60950-1
  • High-accuracy: 0.4% F.S. (TA=+35°C to +85°C typ.)
  • Small primary conductor resistance: 0.27 mΩ typ.
  • Max. primary current: 50 ARMS (input 5.0 V, output 3.0 V)
  • Output: 3 V
  • Stray magnetic field reduction function
  • Small-sized surface mount package (12.7 mm × 10.9 mm × 2.25 mm)
  • Dual overcurrent detection function (adjustable overcurrent detection thresholds)
  • Isolation voltage: 3.0 kVRMS (AC 50 Hz, 60 s)
  • Non-ratiometric output

more information: www.akm.com/global/en/

Renesas RX66N and RX72N MCU families

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The new Renesas RX66N and RX72N high-performance MCU families offer the highest integration of fast 120 MHz-Flash and SRAM memory and peripheral function

The new Renesas RX66N and RX72N high-performance MCU families offer the highest integration of fast 120 MHz-Flash and SRAM memory and peripheral functions. Up to 4 MB of Flash and 1 MB of SRAM save external memory extensions and enable feature-rich applications like AC Servo Drives and Motion Controllers of HMI Control Panels with TFT LCD. The super high-performance CPU with 120 or 240 MHz delivering up to 1396 CoreMark paired with dual IEEE1588 compliant Ethernet, strongest Crypto features and various HW accelerators matches with demanding needs for future proof and cutting edge designs.

Key features

  • Ultra Performance: 32-bit RX MCU at 240 MHz, On-chip Double-precision FPU, 1396 CoreMark
  • Flash Integration: Up to 4-MB Dual-bank Flash, 1 MB SRAM, QSPI
  • Rich Connectivity: Dual IEEE1588 Ethernet, SD Host Interface, QSPI and Triple CAN
  • Best Peripherals: Trigonometric Functions Unit, LCD Controller, 2D Engine, CMOS Camera I/F

Additional features

  • Arithmetic unit for trigonometric functions supports the highest dynamic motor control
  • up to 4-MB flash memory (supportive of the dual bank function)
  • 1-MB SRAM, Graphic-LCD Controller, 2D drawing engine
  • Data transfer:
    • DMACAa: 8 channels, DTCb: 1 channel
    • EXDMAC: 2 channels, DMAC for the Ethernet controller: 3 channels
  • Real-time clock:
    • Adjustment functions (30 seconds, leap year, and error)
    • Real-time clock counting and binary counting modes are selectable
    • Time capture function (for capturing times in response to event-signal input)
  • Independent watchdog timer, 120 kHz clock operation
  • Useful functions for IEC60730 compliance:
    • Oscillation-stoppage detection, frequency measurement, CRCA, IWDTa, self-diagnostic function for the A/D converter, etc.
    • Register write protection function can protect values in important registers against overwriting.
  • Various communications interfaces:
    • Ethernet MAC compliant with IEEE 1588 (2ch) PTP
    • PHY layer (1ch) for host/function or OTG controller (1ch) USB 2.0 FS
    • CAN (3ch)+A1, SCI (8ch), SCI with FIFO (5ch)
    • I2C (3ch) 1 Mbps, QSPI (1ch), RSPIc (3ch)
    • Parallel data capture unit (PDC) for the CMOS camera interface
    • Graphic-LCD controller (GLCDC)
    • 2D drawing engine (DRW2D), SD host interface, MMCIF
  • Up to 29 extended-function timers:
    • 32-bit GPTW (4 ch), MTU3a (9 ch), 16-bit TPUa (6 ch), 8-bit TMRa (4 ch)
    • 16-bit CMT (4 channels), 32-bit CMTW (2ch)
  • 12-bit A/D converter
  • 12-bit D/A converter 2 ch
  • Temperature sensor
  • Arithmetic unit for trigonometric and SQRT functions
  • Encryption function

more information: www.renesas.com

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