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EconoDUAL™ 3 with TRENCHSTOP™ IGBT7 for an unmatched 900 A power rating

Posted on by mixos

Infineon Technologies AG introduced the new IGBT7 chip for its well-known Easy housing platform in March. Now it is taking the state-of-the-art TRENCHSTOP™ IGBT7 to the arena of medium power: in the standard industry package EconoDUAL™ 3. In this chip technology, the 1200 V module provides a leading nominal current of 900 A enabling a 30 percent higher inverter output current for the same frame size compared with the former technology. While specific improvements of the module’s chip and housing directly aim at industrial drive applications, it can also be very well implemented in designs for commercial, construction and agricultural vehicles (CAV), servo drives, as well as solar and UPS inverters.

Based on the new micro-pattern trench technology, the TRENCHSTOP IGBT7 chip performs with much lower static losses compared to the IGBT4. Its on-state voltage is reduced by up to 30 percent for the same chip area. This brings significant loss reduction in the application, especially for industrial drives, which usually operate at moderate switching frequencies. Additionally, the oscillation behavior and the controllability of the IGBT have been improved. The power modules feature a maximum allowed overload junction temperature of 175°C.

Another improvement concerns the freewheeling diode (FWD) which has also been optimized for drive applications. The forward voltage drop of the emitter-controlled 7 th generation diode (EC7) is now 100 mV lower than the forward voltage drop of the EC4 diode, with reduced oscillation tendency during diode turn-off.

The higher power density of the EconoDUAL 3 helps to avoid paralleling of modules, which leads to a simplification of the inverter design and lower costs. Moreover, the new technology can be implemented in the same footprint facilitating the upgrade of existing inverter system designs. The EconoDUAL 3 module comes with improved housing for handling higher currents and temperatures. It is available with pre-applied thermal interface material (TIM) for the lowest thermal resistance and longest lifetime. The PressFIT housing enables a fast and cost-efficient assembly.

more information: www.infineon.com

Three-channel power supplies deliver up to 375W

Posted on by mixos

Programmable, low-noise, three-channel power supplies that deliver up to 375W in a compact 2U high, half-rack-wide enclosure have been introduced by Tektronix. The Keithley Series 2230G is designed for maximum flexibility, accuracy, and low noise when testing high power, multi-voltage circuits such as LED drivers, automotive, and power-IC circuits.

The power supplies’ three channels are isolated, independent and individually programmable with remote sensing for each channel.

“Designers and test engineers are being challenged to test high-power circuits with a wide range of voltage levels and current draws in compact test environments, while also ensuring minimum noise and maximum accuracy,” said Lori Kieklak, vice president and general manager, Keithley Product Line at Tektronix. “This is particularly the case in R&D and in stacked, tightly spaced automated setups with high production throughput. Keithley’s new series of multichannel power supplies provide the best performance and flexibility needed for testing a wide range of product configurations.”

To provide this flexibility, the 2230G-30-3 provides 195W with two 30V, 3A channels and a 5V, 3A channel, while the 2230G-30-6 and 2230G-60-3 provide up to 375W, with two 30V, 6A channels and two 60V, 3A channels, respectively.

Both 375W versions also have a 5V, 3A third channel. For higher voltages or currents, 30V channels can be combined in series to get up to 60V, and two or three channels can be connected in parallel to deliver up to 15A from the 2230G-30-6. All channels are simultaneously displayed on the front-panel display.

To minimize the effects of noise on the device under test (DUT), the triple output power supplies use a linear design with <1mV RMS ripple and noise.

Features:

  • 195 W model has two 30 V, 3 A channels and one 5 V, 3 A channel
  • All channels are independently controlled and are isolated to power a wide range of test setups
  • All channels have remote sensing so the programmed voltage is accurately applied to the load
  • Set and monitor output voltages with 0.03% basic accuracy and 1 mV resolution
  • Monitor load current with 0.1% basic accuracy and 1 mA resolution
  • Low noise, linear regulation with <1 mV rms ripple and noise
  • Voltage and current outputs of three channels are displayed simultaneously for immediate observation of each output state
  • USB, GPIB, and RS-232 interfaces and rear panel connections for automated test convenience

The linear design also ensures the supplies don’t add to ambient noise and affect other sensitive instrumentation being used for the test.

Using the supplies’ remote sensing capability, the user can set and monitor output voltages with a 0.03% basic accuracy and a resolution of 1mV. Load current can be monitored to 0.1% basic accuracy, and 1mA resolution.

The programmable multiple output power supplies include both front and rear access to the power outputs for orientation flexibility in test setups while minimizing required lead lengths to reduce noise pickup, minimize losses, and keep the test setup neat.

The 2230G Series comes with three standard interface options for PC-based control:  USB, GPIB, and RS-232.

The 2230G Series are available for purchase for €1,230 – €1,500. More information: www.tek.com

MAX20075 Mini Buck Converter

Posted on by mixos

Maxim’s MAX20075 mini buck converter helping improve automotive ECU design with a low-Iq buck converter.

The MAX20075/MAX20076/MAX25276 are small, synchronous buck converters with integrated high-side and low-side switches. The MAX20076/MAX25276 are designed to deliver up to 1.2A and the MAX20075 up to 0.6A, with 3.5V to 36V input voltages. The devices provide an accurate output voltage of ±2% within the normal operation input range of 6V to 18V. With 20ns minimum on-time capability, the converter is capable of large input-to-output conversion ratios. Voltage quality can be monitored by observing the PGOOD signal. The devices can operate in dropout by running at 99% duty cycle, making them ideal for automotive and industrial applications. The devices offer two fixed output voltages of 5V and 3.3V. In addition, the devices can be configured for 1V to 10V output voltages using an external resistor-divider. Frequency is internally fixed at 2.1MHz, which allows for small external components and reduced output ripple, and guarantees no AM interference. The devices offer pin-enabled spread-spectrum-frequency modulation designed to minimize EMI-radiated emissions due to the modulation frequency.

The MAX20075/MAX20076 /MAX25276 are available in small (3mm × 3mm) 12-pin TDFN and side-wettable TDFN packages with an exposed pad, and use very few external components.

Key Features

  • Synchronous DC-DC Converter with Integrated FETs
    • MAX20075 = 0.6A IOUT
    • MAX20076/MAX25276 = 1.2A IOUT
    • For applications requiring low quiescent current/ skip mode operation, please refer to MAX20075D/ MAX20076D/MAX25276D. This device is only recommended for FPWM operation
  • 20ns Minimum On-Time Small Solution Size Saves Space
    • 2.1MHz Frequency
    • Programmable 1V to 10V Output for the Buck, or Fixed 5V/3.3V Options Available
    • Fixed 2.5ms Internal Soft-Start
    • Fixed Output Voltage with ±2% Output Accuracy (5V/3.3V), or Externally Resistor Adjustable (1V to 10V) with ±1.5% FB Accuracy
    • Innovative Current-Mode-Control Architecture Minimizes Total Board Space and BOM Count
  • PGOOD Output and High-Voltage EN Input Simplify Power Sequencing
  • Protection Features and Operating Range Ideal for Automotive Applications
    • 3.5V to 36V Operating VIN Range
    • 40V Load-Dump Protection
    • 99% Duty-Cycle Operation with Low Dropout
    • -40°C to +125°C Automotive Temperature Range
    • AEC-Q100 Qualified

more information: www.maximintegrated.com

Nexperia introduces industry’s fastest Common Mode Filters with Integrated ESD Protection for Super Speed USB

Posted on by mixos

Nexperia announced the market’s fastest common mode filter (choke)/ ESD protection combination. The new PCMFxUSB3BA/C features the industry’s widest differential passband of up to 10 GHz 3 dB frequency and very high surge robustness of up to 7.5 A 8/ 20 µs. It is designed to suppress common mode and single-ended noise while minimizing the impact on the signal integrity of extremely fast data lines.

Developed to meet the requirements of Super Speed USB applications, the new devices provide effective 1, 2 & 3 line pair protection (Tx +/-, Rx +/-, D +/-) and filtering. Proven for 10 Gbps communications line protection, the filter’s system-level robustness exceeds the IEC 61000-4-2 level 4, suiting them for use with sensitive SoCs. The solution also minimizes reflections when compared to a discrete design. The integration of Nexperia’s TrEOS technology results in low clamping and high robustness. PCMFxUSB3BA/C extends Nexperia’s family of Common Mode Filters (PCMF devices), helping to optimize the choice between differential pass-band and common-mode rejection at signal fundamentals and higher harmonics.

Schematic Diagram of the PCMF1USB3BA/C in the WLCSP5 Package.

Comments Stefan Seider, Product Manager, Nexperia:

“Apart from their capability to reduce EMI, Common Mode Filters with ESD protection are also very popular for their efficiency in protecting sensitive transceivers: They add an impedance to the signal line pair, which is very small for differential signals but shows significant attenuation of common mode noise as well as single-ended transients such as ESD.”

The new PCMF filters are available in very low-inductance, space-saving WLCSP packages. Devices are footprint-compatible with available ESD-only solutions for fast design changes.

More information, including product specs and datasheets is available at: https://www.nexperia.com/products/PCMFXUSB3BA

Triple output power supplies feature excellent load

Posted on by mixos

Three Linear Triple Output Power Supplies launched by Global Specialties feature have fully programmable isolated outputs that can be adjusted independently or combined in series or parallel for higher voltage or current. Each model offers variable voltage and current on two channels, with the third channel output rated at 6V & 5A.

Each front panel has a bright 4.3-in. TFT LCD which displays all three outputs simultaneously and a USB connector for easy access to firmware updates. There are both convenient cursor keys and a rotary control knob for precise voltage and current settings.

Using the keypad, menu soft keys, output controls, and lock function, users can control their power needs.

The rear panel offers output terminals for remote sense. Connection to a PC is through either an RS-232 or USB connector using standard SCPI communication protocols.

In tracking mode, a user-defined ratio between two outputs is maintained and allows adjustments across the two channels from one control.

For example, use this with bipolar circuits, setting up positive and reverse connected negative supplies and maintaining their symmetry.

Each model offers timer-controlled output function, constant voltage (CV) and constant current (CC) modes, as well as memory to store and recall up to 40 instrument settings. The series features both overvoltage (OVP) and overcurrent (OCP) protections.

Video

All models in the series feature excellent load and line regulation at 0.01% plus programming and readback resolutions of 1mV and 0.1mA.

Applications include Education, R&D design, or production testing.

Available immediately, Global Specialties’ Premium Series power supplies (Models 1368, 1369, 1370) are all backed by a one-year warranty.

R&S®NGM200 Power supply series are Top class PSUs

Posted on by mixos

Thanks to their high accuracy and fast load recovery time, the R&S®NGM200 power supplies are perfect for challenging applications. Their two-quadrant architecture allows them to function both as a source and a sink to simulate batteries and loads. Their short recovery times enable them to handle fast load changes that occur, for example, when mobile communications devices switch from sleep mode to transmit mode. High-speed data acquisition and convenient battery simulation widen the range of applications.

The single-channel R&S®NGM201 and the two-channel R&S®NGM202 deliver up to 60 W of output power per channel. The output channels are floating, galvanically isolated and protected against overload and short circuits.

With four measurement ranges for current and a resolution of up to 6½ digits when measuring voltage, current, and power, the R&S®NGM200 power supplies are perfect for characterizing devices that have low power consumption in standby mode and high current in full load operation. In many cases, an additional digital multimeter is no longer necessary. Thanks to their fast recovery time of < 30 μs, their mini-mum overshoot even during a demanding load change and fast impedance regulation, the R&S®NGM200 power supplies are ideal for powering IoT devices and other battery-operated devices. With an acquisition rate of up to 500 000 samples per second, even extremely fast variations in voltage or current can be captured. The linear two-quadrant design of the output stages allows the R&S®NGM200 power supply series to operate as a source and sink with minimum residual ripple and noise, ideally supporting the development of power amplifiers and MMICs. The optional battery simulation functionality provides test conditions that imitate the use of a real battery.

Key Facts:

  • Max. output power: 120 W
  • Voltage per channel: 0 V to 20 V
  • Max. current per channel: 6 A
  • Resolutions down to 1 µV/10 nA
  • 500 ksample/s high-speed data logging

Datasheet: scdn.rohde-schwarz.com

NGM202-G – Bench Top Power Supply with GPIB, 20V, 6A, 120W, is on sale online for ~5.080 exc VAT

Analog Devices Introduces Quad-Output DC/DC µModule Regulators

Posted on by mixos

Analog Devices, Inc., has introduced the LTM4668 and LTM4668A µModule® regulators, quad-output DC/DC regulators with up to 4.8A output capability. The new devices integrate switching controllers, power FETs, inductors and support components, easing the design process while reducing power consumption and board space. They are ideal for telecom, networking and industrial applications.

Operating over an input voltage range of 2.7V to 17V, the LTM4668 and LTM4668A support an output voltage range of 0.6V to 5.5V. The devices support frequency synchronization, PolyPhase operation, selectable Burst Mode operation, 100% duty cycle and low IQ operation. Their high switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability.

The LTM4668 and LTM4668A are available today in 6.25mm x 6.25mm x 2.1mm BGA packages. Key features include:

  • Wide Input Voltage Range: 2.7V to 17V
  • 6V to 1.8V Output Voltage (LTM4668); 0.6V to 5.5V Output Voltage (LTM4668A)
  • 2A DC, Parallelable, Output Current on Each Channel
  • ±1.5% Total Output Voltage Regulation
  • 100% Duty Cycle Operation
  • Current Mode Control, Fast Transient Response

more information: www.analog.com

DFRobot relaunches Gemini Lake based Lattepanda Delta SBC for $188

Posted on by Tope Oluyemi

In Dec 2017, DFRobot’s LattePanda project approached Kickstarter to launch a community-backed LattePanda Alpha SBC with a 7th Gen Kaby Lake Intel Core m3-7Y30, and a closely identical LattePanda Delta with a Celeron N4100 from the “Gemini Lake” follow-on to Apollo Lake. Both boards were shipped late, the Alpha arrived late in 2018, and the Delta this spring. However, the Alpha relaunched for public sales in January, and the Delta is available now.  DFRobot has relaunched the Delta on DFRobot’s website for $188 barebones, offering support for Linux or Windows, or the $228 with Win 10 Pro preactivated. The two prices include 4G LPDDR4, 32GB eMMC with built-in 802.11ac WiFi, and Bluetooth 5.0.

LattePanda Alpha

The Alpha is available on DFRobot in two models, the 800s model with 8GB LPDDR3 and an 864s with 64GB eMMC. The 800s sell without OS for $379 and the 864s go for $409 barebones or $449 with Win 10 Pro preactivated. Reports from the LattePanda Alpha shopping page on April 24 show that because of continuous shortages of the 7th Gen dual-core Core M3-7y30 processor, they switched the 800s model to an 8th Gen Amber Lake-Y based Core m3-8100Y. DFRobot says that the dual-core, quad-thread processor runs at 1.1GHz/3.1GHz with a 5W TDP, and offers 30 percent higher performance. The LattePanda community backed project announced full Ubuntu support for the original Intel Atom Cherry Trail based Lattepanda in addition to the support for Windows 10. Additionally, Ubuntu support has also been added to the Alpha and Delta models.

LattePanda Delta

The Gemini Lake LattePanda Delta ships with Intel’s quad-core Celeron N4100 clocked at 1.1GHz/2.4GHz with Intel UHD Graphics 600. The major difference between the Alpha and Delta is the different processors and memories (4GB/32GB for the Delta), but in other aspects, the boards appear to be identical. The Delta offers Alpha’s M.2 M-Key interface with NVMe, SATA, and PCIe support, but was swapped with a SATA-only B-key slot on the Kickstarter version of the Delta. Both models also enable an M.2 E-Key slot with PCIe x2, USB 2.0, I2C, and UART. Available also is dual simultaneous 4K display support via HDMI, eDP (with touch support), and a DisplayPort that runs over a shared USB Type-C port. They also enable three USB 3.0 host ports, a GbE port with Wake-on-LAN, and the WiFi-ac with BT 5.0 module. They also offer dual 50-pin GPIO connectors, with one which is an Arduino pinout for the included Arduino Leonardo compatible co-processor. They also feature an audio jack, a 12V input, a PMIC, an RTC, and a cooling fan. The cooling fan and power adapter serves as “free gifts.”

The LattePanda Delta is selling now for $188 for barebones, or $228 with Win 10 Pro preactivated. The LattePanda Alpha is also available in an 800s model (8GB RAM) without OS, and with an 8th Gen Amber Lake-Y Core m3-8100Y for $379. Available also is an 864s Alpha model with a 7th Gen Core M3-7y30, which adds 64GB eMMC and prices at $409 for barebones, or $449 with Win 10 Pro. More information can be found on DFRobot’s LattePanda Delta and LattePanda Alpha shopping pages.

Push Performance to the Edge with UP Xtreme from AAEON

Posted on by mixos

AAEON, an industry leader in factory AI and Edge Computing solutions, announces the latest product in the UP line of products, the UP Xtreme board and UP Xtreme Edge embedded system, also called UPX Edge. With the power of the 8th Generation Intel® Core™ processors, the UP Xtreme is built to power industrial automation, robotics, AI, and IoT applications.

The UP Xtreme represents the third generation of UP Board products, powered by 8th Generation Intel® Core™ and Celeron® processors (formerly Whiskey Lake) with up to 16GB of onboard RAM and 64GB of eMMC memory to power through any application. With the latest Intel® graphics solution, the UP Xtreme is capable of 4K video output, and features a built-in audio jack as standard.

The UP Xtreme brings industrial grade features to the UP line of products, such as 12~60V wide voltage power input, two RS232/422/485 10-pin headers, and time sensitive networking (TSN) to facilitate communication in a connected factory. The UP Xtreme is also built to perform in temperatures ranging from 0°C up to 60°C.

The UP Xtreme offers flexible expandability with both a 40-pin and 100-pin connector, as well as m.2 2230 and 2280 slots, and mPCIe slots. The UP Xtreme can be expanded with wireless modules for Wi-Fi, Bluetooth, 4G and LTE. The UP Xtreme is compatible with other UP Board modules, including the AI Core X, AI Core XM 2280, and Vision Plus X, all featuring the Intel® Movidius™ Myriad™ X. With each module installed, the UP Xtreme supports up to six Intel® Movidius™ Myriad™ X modules, providing high-performance AI processing for edge computing applications.

For those in need of a system that’s ready to go out of the box, AAEON also offers the UPX Edge system. With the UP Xtreme board at its heart, the UPX Edge makes deploying a powerful edge system easy, whether it’s as a factory IoT gateway, AI powered machine controller, or in a smart retail application. Utilizing an innovative fanless design and thermal solution, the UPX Edge can operate in even more extreme conditions, from -20°C to 70°C (tested with AI Core XM, 2x Intel® Movidius™ Myriad™ X).

The UP Xtreme and UPX Edge offers users the support of AAEON services, as well as the resources of the ever-growing and open UP community. You can easily find all the information you need from AAEON’s partners in AI, IoT, robotics, and automation. AAEON also offers their manufacturer services as well as OEM/ODM support to provide end-to-end solutions including customization and configuration.

“The UP Xtreme and UPX Edge brings the innovation and support of UP Board to more powerful industrial robotics and automation applications,” said Wendy Lee, Product Manager with AAEON’s UP Division. “With important features such as TSN and various expansion slots, UP Xtreme and UPX Edge offers performance that’s easy to integrate into any project.”

visit www.aaeon.com

SEGGER’s Ozone debugger adds support for custom instructions

Posted on by mixos

SEGGER just released Ozone V3.10, a major update to its full-featured graphical debugger and performance analyzer. The new release includes support for custom instructions, allowing disassembly of application-specific instructions added to the CPU core to tailor it for the particular application. Custom instructions are defined in plug-in scripts, which can be easily edited by the user of Ozone or the CPU core designer. The software already comes with a plug-in script for the popular RISC-V PULP extension.

Custom instructions are used to make embedded systems more efficient. Tailoring instructions to a specific application increases speed and reduces power consumption. The use of customized instructions, now available for RISC-V and ARM, is becoming more widespread.

The new release comes with other new features and enhancements as well, most notably a new unified timeline window. The unified timeline window now shows all time-related values in a single window, so that instruction trace, power consumption, and data values can be viewed at a glance, while at the same time reducing the amount of screen real estate being used. Having this information in the same timeline can reveal important system information, especially the correlation between power, data, and code execution.

Ozone works cross-platform for Windows, macOS, and Linux. Like most SEGGER software, Ozone can easily be downloaded and installed without a registration process. Ozone is available for free with a J-Link PLUS, PRO, ULTRA+, or with a J-Trace. Other J-Link models can use Ozone under the terms of SEGGER’s friendly licensing, allowing use for non-commercial purposes as well unlimited evaluation even for the commercial user.

For additional information please visit: www.segger.com

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