Новини світу мікро- та наноелектроніки

After a while i really wanted to make a pcb (or let a manufacturer produce it for me, like jlcpcb) and going from 1 idea to the next, i settled on making this somewhat universal usable pqfp-100 adapter board. The Z80 cpu was something i already had laying arround for a project, but dint want to spend too much design time if it where a dud. Well, after designing the board, waiting a week or so. Soldering my first ever pqfp(or tqfp alike) it works ☺️ some wires to a generic z80 testboard and its walking the memory space for new instructions (all nop). Now i need to programm a eeprom and get that pio and sio working. The pcb should also work for a RTL8019AS-LF network ic i got for a retro pc build. submitted by /u/codeasm [link] [comments]

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Hello, I decided to make my first remote controlled car design on KiCad, please do provide feedback. I'm using components such as an NRF24 modules, an L289N motor driver, and a stand alone AT328P. The one thing that worries me greatly is I didn't add a connection to the reset pin on the AT328P, I left it floating, and upon further research, it is recommended to have a 10k resistor connected to 5V to the reset pin, otherwise it might reset randomly or not work. Is this true? I already ordered it so I'm afraid I can't do anything anymore if that's the case. Thanks! submitted by /u/Good-Marzipan4251 [link] [comments]

Here's a Microchip ATSAMD21G18A in a WeMos Arduino M0 clone, and here's the 48.007MHz clock brought out on a GPIO for inspection. That's the 32768Hz xtal oscillator multiplied by 1465 in the on-chip PLL. submitted by /u/DiscountDog [link] [comments]

I used a center tap transformer to step down the 110v to 9v AC, then I made a full bridge rectifier and smoothed it out with an electrolytic capacitor. Then, I used a Zener diode to regulate it to a smooth 5v. From my calculations, it has only a variation of .2%! Now I need a burner phone to test it on. submitted by /u/Programming_Cafe [link] [comments]

Wolfspeed Inc of Durham, NC, USA — which makes silicon carbide (SiC) materials and power semiconductor devices — says that it has received $192.1m in cash tax refunds from the advanced manufacturing tax credit under Section 48D (including $186.5m owed to it for both fiscal 2023 and fiscal 2024 taxes, as well as accrued interest). This comprises part of the approximately $1bn total Section 48D cash tax refunds that the firm expects to receive. As of the end of fiscal second-quarter 2025 (to 29 December 2024), Wolfspeed had accrued a total of $865m in Section 48D tax credits. The firm expects to receive more than $600m in cash tax refunds in fiscal 2026...

I finally decided to replace the tip of my Hakko FX-901 (the iron that runs on AA batteries). I’ve soldered all sorts of stuff with it over the years. submitted by /u/newsINcinci [link] [comments]

As I briefly noted back in mid-November, I ended up replacing my initial failed-experiment lithium battery-based portable power unit, Energizer’s PowerSource Pro Battery Generator:

with two EcoFlow successors, the smaller RIVER 2:

and this writeup’s subject, the DELTA 2, which I bought in claimed factory-refurbished condition (albeit, like the RIVER 2, also seemingly actually brand new) from EcoFlow via eBay in mid-September on sale (20% off list price) for $479 with an included 2-year extended warranty:

Why both? Or said another way, how do they differ? As you can likely already tell from the stock photo of each, the DELTA 2 is the huskier of the two:

	Dimensions	Weight
RIVER 2	9.6 x 8.5 x 5.7 in	7.7 lbs
DELTA 2	15.7 x 8.3 x 11 in (400 x 211 x 281 mm)	27 lbs (12 kg)

That said, EcoFlow puts the DELTA 2’s larger volume to good use with 4x the storage capacity: 1,024 Wh versus 256 Wh with the RIVER 2. The expanded front, rear and sides’ cumulative real estate also affords the DELTA 2 a larger and broader allotment of output power ports:

• Six AC (four two-prong, two three-prong with ground): 120V, 50Hz/60Hz, 1800W (along with 2200W at sub-120V per X-Boost technology, as detailed in my RIVER 2 coverage, and 2700W surge), pure sine wave, not simulated
• Two USB-A DC: 5V, 2.4A, 12W max
• Two USB-A “Fast Charge” DC: 5V @ 2.4A / 9V @ 2A / 12V @ 1.5A, 18W max
• “Cigarette lighter” car DC: 12.6V, 10A, 126W max
• Two DC5521 DC: 12.6V, 3A, 38W max (DC5525 adapter cable also included in kit)
• And two USB-C DC: 5/9/12/15/20V 5A, 100W max (unlike with the RIVER 2, however, these can’t do double-duty as charging input ports)

Unlike the RIVER 2, the DELTA 2’s storage capacity can be further expanded to between 2 kWh and (beyond) 3 kWh by tethering it to a separate DELTA 2, DELTA MAX or DELTA 2 MAX extra battery via its integrated XT150 connector:

That same XT150 connection also enables in-vehicle fast charging at up to 800W using the Alternator Charger, which I also now own ($319.20 on sale) and plan to install in my van soon:

Unfortunately, the very cool (and similar) looking PowerStream residential power unit, which I’m guessing also communicates with the DELTA 2 over XT150, isn’t currently available in the United States due to regulatory restrictions on plug-in grid solutions.

But the XT150-compatible Smart Generator is:

It’s a bit of an enigma, at least to me, given the company’s seeming heavy emphasis on solar and other renewable energy recharging sources. But hey, when the sun’s not shining but your battery’s drained, I suppose this gas-powered generator will do in a pinch instead. And although the product page implies that it only works with higher-capacity DELTA Pro and Max units, this company-published video confirms that it’s mainstream DELTA 2-compatible, too:

Whereas the RIVER 2’s XT60i DC charging input, usable with both solar and “cigarette lighter” car sources via cable adapters, is 110W max (for solar, specifically, 100W for car), the one in the DELTA 2 is beefier, supporting (again, for solar) an 11-60V and up to 15A/500W max input. Last September, I also bought two refurbished 220W second-generation EcoFlow solar panels, on sale at the time for $299 each inclusive of a two-year extended warranty:

which I’ll be cable-extending and in-parallel combining:

Stand by for coverage of them, along with hands-on impressions of the entire setup, to come.

What about AC charging? Although, as previously mentioned, the DELTA 2 has 4x the storage capacity of its RIVER 2 sibling, the charging speeds are surprisingly similar. Whereas the RIVER 2 will charge from 0% to full in 60 minutes, EcoFlow claims that the DELTA 2 will get to 80% in 50 minutes and completely full in 80 minutes. Photos taken during the first-time charging of my unit show that the initial charging rate:

automatically slows down as the full-charge threshold nears (note the input power variance):

and is eventually reached:

Here are those same first two charging segments captured by the wireless-tethered mobile app:

which is capable of simultaneously communicating with both of my EcoFlow devices:

assuming they’re both powered on at the time:

And what of generational enhancements and broader differences? As with the RIVER-to-RIVER 2 sequence I discussed in my recent coverage, EcoFlow also evolved the DELTA 2’s core battery technology from its precursor’s NMC (lithium nickel manganese cobalt), which is only capable of a few hundred recharge cycles before its maximum storage capacity degrades to unusable levels in realistic usage scenarios, to a LiFePO4 (lithium iron phosphate), also known as LFP (lithium ferrophosphate), battery formulation. Whereas the first-generation DELTA was guaranteed for only 500 recharge cycles, with the DELTA 2 it’s 3,000 (in both cases to 80+% of the original battery pack capacity), along with offering a boosted 5-year warranty.

And last September, EcoFlow launched not only the RIVER 3 family but also its first two DELTA 3 devices. The first, the DELTA 3 Plus, is now shipping as I write these words at the end of 2024:

Improvements versus the DELTA 2 predecessor include:

faster switching from wall outlet-sourced to inverter-generated AC (higher power, too) for more robust UPS functional emulation, as with the RIVER 3, along with improved airflow (leading to claimed 30 dB noise levels in normal operation), newer-generation denser 40135 batteries (translating to smaller dimensions and lighter weight, along with a boosted recharge cycle count to 4,000), expansion support up to 5 kWh, and even faster AC charging (sub-1 hour to 100%).

That all said, the DELTA 3 Plus has the same 1-kWh capacity as the non-Plus DELTA 2. What then, of the baseline DELTA 3 also briefly mentioned in last September’s unveiling, and supposedly available in October? Detailed specs are not yet public, at least to the best of my knowledge, as I submit this writeup. Instead (or in addition?), EcoFlow has stealth-launched the DELTA 3 1500:

whose two-color-option styling is reminiscent of the DELTA 2 but with boosted 1.5 kWh capacity and other tweaks. Specs are also scant for this device, but the Reddit crowd was able to dig up a user manual. My guess? EcoFlow is struggling to source enough lithium batteries (brand new DELTA 2 supplemental batteries are also MIA right now, although refurbs occasionally appear on eBay, the company website, etc.) and is dynamically evolving its product line in response.

In closing, after re-reading this piece, I realize that I may have come off as a bit (or more than a bit) of an EcoFlow “fanboy”. To be abundantly clear…I paid for all this gear myself (with no post-publication kickbacks), and the company doesn’t even know I’m doing these writeups. I just think that the products and their underlying technologies are quite cool. Agree or disagree? Let me know your thoughts in the comments!

—Brian Dipert is the Editor-in-Chief of the Edge AI and Vision Alliance, and a Senior Analyst at BDTI and Editor-in-Chief of InsideDSP, the company’s online newsletter.

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The post EcoFlow’s Delta 2: Abundant Stored Energy (and Charging Options) for You appeared first on EDN.

Japan’s Mazda Motor Corp and Kyoto-based ROHM Co Ltd have commenced joint development of automotive components using gallium nitride (GaN) power semiconductors...

With the emergence of smaller models and techniques like distillation, will AI scaling stop, and we won’t need more compute power? Richard Ho, head of hardware at OpenAI, firmly believes that AI scaling will continue, and compute power will grow by orders of magnitude in the near future. During his keynote address at Synopsys Snug, he also talked about OpenAI’s in-house AI accelerator, issues related to AI clusters, and AI-empowered EDA tools.

Read the full story at EDN’s sister publication, EE Times.

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The post Will compute continue scaling in AI clusters? appeared first on EDN.

In booth #2119 at the Optical Fiber Communications Conference & Exposition (OFC 2025) in San Francisco (30 March–3 April), Lumentum Holdings Inc of San Jose, CA, USA (which designs and makes optical and photonic products for optical networks and lasers for industrial and consumer markets) is unveiling its latest innovations in optical networking, presenting advances in high-speed data interconnect products and technologies, optical circuit switching (OCS), high-power pump lasers, and next-generation networking technologies, enabling efficient scaling of AI-driven and cloud-scale networking architectures...

In booth #1519 at the Optical Fiber Communications Conference & Exposition (OFC 2025) in San Francisco (1–3 April), materials, networking and laser technology firm Coherent Corp of Saxonburg, PA, USA is demonstrating what it claims is the industry’s first 400Gb/s differential electro-absorption modulated laser (D-EML), representing a significant advance in high-speed optical networking technology for data centers...

Created this pcb to learn how to drive SRM. submitted by /u/LlamaZookeeper [link] [comments]

Versatile 1.6 Terabit Ethernet platform in portable bench top or rack mount solutions, with application support for validating silicon chips to network equipment performance

Keysight Technologies Inc.announced the Interconnect Test System, an advanced software solution, and the Interconnect and Network Performance Tester 1600GE hardware traffic emulator it runs on. This cohesive solution validates AI infrastructure, network components, and data center interconnects from 200GE to 1600GE, expanding on the capabilities of the recently announced Interconnect and Network Performance Tester 800GE bench top. The ITS software runs on both the 800GE and 1600GE Interconnect and Network Performance Tester platforms.

For decades, validating network interconnect performance required a manual, time-consuming process with limited or no automation and needed advanced programming skills to write scripts. That process also lacked a centralized system to organize and store interconnect data and reports, making tracking and replicating tests and configurations difficult. With the increasing diversity and scale of AI and data center interconnects, these traditional test methods cannot accurately predict and measure the reliability of today’s complex production networks.

The new Interconnect and Network Performance Tester 1600GE, with ITS software, delivers a holistic system that can organize, store, and use data intelligently to automate interconnect validation in high-speed Ethernet networks and AI data centers. Benefits of the solution include:

• Adaptable and versatile high-speed Ethernet platform – The INPT-1600GE platform is lightweight and office quiet, supporting high power consumption optical receivers up to 40 watts. Available as a portable bench top unit or rack mount chassis, both models support 1x1600GE, 2x800GE, 4x400GE, and 8x200GE to validate a broad range of Ethernet devices and interconnects that use 212Gb/s electrical lane interfaces. The bench top model has a built-in handle for easy movement inside or outside the lab. The INPT-1600GE assesses the reliability, stability, and interoperability of silicon chips, optical transceivers, active cables, and networking equipment at speeds from 200GE to 1600GE PAM4 for layers 1 through 3 on any port.
• Redefines interconnect data storage and organization – The ITS software includes a first-of-its-kind, US patent pending Interconnect Library (IL) that introduces a new way to organize, retrieve, and use interconnect data, including Common Management Interface Specification (CMIS) data. CMIS standardizes how high-speed interconnects are programmed and how the data is retrieved and used in networking systems. This cutting-edge library organizes all data and creates a comprehensive record that can be used to create and execute new tests. Once a record is created, it is automatically added to the IL self-serve database, where users can retrieve, reuse, edit, and update records. This dramatically increases productivity and accelerates the creation of automated test suites without advanced programming.
• Optimize interconnect validation efficiency – The browser-based ITS software includes a robust and fast graphical user interface (GUI) that allows multiple users to simultaneously run or schedule tests using the application’s advanced multi-user test scheduler. Using this tool increases test case throughput, allowing more tests to run unattended by a greater number of users.
• Automated report generator – Allows users to report on all the data from the IL records, including test results and CMIS data that includes PASS/FAIL information. This helps streamline the development process for interconnects and can also be used for manufacturing test applications using automated reports.

Khushrow Machhi, Senior Director of Marketing, Physical Layer Products Division at Broadcom, said: “As the industry moves toward 1.6T networking, ensuring signal integrity and error correction at these unprecedented speeds is critical. Broadcom is excited to collaborate with Keysight in developing cutting-edge testing solutions that address the challenges of higher modulation schemes, SerDes advancements, and forward error correction. Our combined expertise will help accelerate the deployment of 1.6T technology, paving the way for the future of high-speed data centers and AI-driven infrastructure.”

Andy Moorwood, Vice President, Hardware Engineering, Network Test & Security Solutions, Keysight, said: “Keysight’s ITS software is the industry’s first comprehensive solution for validating performance in high-speed Ethernet and AI data center interconnects. It helps reduce device failures and drastically reduces the time needed to characterize various interconnects. Moving from a manual and tedious process to one that enables faster, more accurate test suite automation without complex programming significantly boosts productivity.”

Ram Periakaruppan, Vice President and General Manager, Network Test & Security Solutions, Keysight, said: “Keysight is working with the majority of global standards bodies and manufacturers of silicon chips, optical and copper interconnects using 224Gb/s electrical lane interfaces to accelerate development of the ecosystem for 800GE and 1.6T AI network infrastructures. Our 1.6T and 800GE hardware platforms, combined with the ITS software, enable critical interconnect performance evaluations and tremendous gains in testbed productivity. This equips our customers with the tools they need to deploy highly stable and reliable solutions into their networks.”

emulation, and test solutions to help engineers develop and deploy faster, with less risk, throughout the entire product lifecycle. We’re a global innovation partner enabling customers in communications, industrial automation, aerospace and defense, automotive, semiconductor, and general electronics markets to accelerate innovation to connect and secure the world.

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RAA278830 LVDS Solution Adds ISO 26262 Compliance to Renesas’ Industry-Leading Video Diagnostic Capabilities

Renesas Electronics Corporation a premier supplier of advanced semiconductor solutions, introduced the RAA278830 Video Diagnostics Bridge IC, a highly integrated dual Low-Voltage Differential Signal LCD video processor. The new IC integrates many of the features necessary to design ISO 26262-compliant ASIL B automotive display systems such as heads-up-displays (HUD), digital instrument clusters, camera monitor systems, and electronic mirrors.

As automotive safety systems are increasingly dependent on display systems, it has become more critical that clear, uncorrupted images be presented to the driver. Missing frames, frozen images, and even incorrect warning icons can seriously compromise driver safety. The RAA278830 addresses these concerns with Functional Safety features built into the device specifically to avoid any corruption of images through monitoring of the signal integrity as well as the video content itself. The internal diagnostics and measurement engines can detect frozen video, incorrect colors, broken or corrupt video images, as well as flashing, flickering, and video images that could obstruct the driver’s view of the road.

Renesas has a long and successful track record of providing video signal processing solutions for the automotive market. In addition to standard analog video decoders, Renesas offers the award-winning Automotive HD-Link family of products that enables high-resolution images to be transported over low-cost cables and connectors. The RAA278830 adds to Renesas’ leading line of integrated LCD controllers that have been implemented worldwide.

Key Features of the RAA278830

• Dual Open-LDI Input/Output
• ISO 26262 Functional Safety ASIL B rating

CRCs, parity, BIST, and redundancy

safety mechanisms implemented throughout the entire data path

• Video Diagnostic Capabilities

Input/Output monitoring of video timing, signal integrity, and content

Flickering, flashing, occlusion, and glare detection

• Spread Spectrum for lower system level EMI profile
• Image enhancement engine for superior image quality
• Dual host interface: I2C & SPI (configurable)
• SPI-Flash based OSD as well as an embedded font based OSD

SPI boot capability (boot from SPI Flash, no MCU needed)

Supports multi-bank for fail-safe OTA updates

• Space-efficient 72SCQFN, 10mm x 10mm
• AEC-Q100 Grade 2 qualified

“Our automotive customers have consistently asked us to add functional safety features to our industry-leading video processing technology,” said Jason Kim, Vice President and General Manager of the Configurable Mixed-Signal Division at Renesas. “The RAA278830 delivers all of the features needed to create safe, easy-to-implement and economical LCD display for all types of passenger vehicles.”

 

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Modules range in power levels from 750W up to 2kW, with a top power density of 5kW/in3

New Vicor DCM3717 and DCM3735 DC-DC power modules support the growing trend of 48V-centric power delivery networks that provide greater power system efficiency, power density and lower weight versus 12V based PDNs. The DCM products are non-isolated, regulated DC-DC converters, operating from a 40 – 60V input to generate a regulated output adjustable from 10V to 12.5V. The DCM3717 family is available in two power ranges, 750W and 1kW, and the DCM3735 is a 2kW device. These new DCM products can be paralleled to rapidly scale system power levels.

With industry-leading power density at 5kW/in3, these new DCM products enable power system designers to deploy high-performance 48V power delivery networks for legacy 12V loads and achieve significant size, weight and efficiency benefits. The 5.2mm low-profile surface-mount package is thermally adept, easing thermal management system design.

The DCM3717S60E13G5TN1 (750W) and DCM3717S60D13K0TN1 (1000W) are available (size: 36.7 x 17.3 x 5.2mm), and the DCM3735S60D13L0TN1 (2000W / size: 36.7 x 35.4 x 5.2mm) will be available later this year.

Enabling easy conversion from high voltage to 12V via a 48V hub

Power delivery networks are making a decisive shift from 12V to 48V architectures to take advantage of higher efficiency. The benefits of using 48V have been illustrated in high-performance computing, automotive and in many other applications. However, seizing this opportunity presents many power system design challenges for legacy systems that have been optimized around 12V architectures for decades. Vicor, the leader in 48V DC-DC power conversion, is easing the transition with a 48V-centric power module approach to power systems design and, as with other 48V power modules, this new family of non-isolated DCM products can be used in conjunction with the Vicor BCM high-voltage fixed-ratio bus converter family that converts from high voltage (800V and 400V) to 48V. Once a 48V bus is established, Vicor DCM products can efficiently convert from 48V to a regulated 12V.

Industrial applications are transitioning to 48V PDNs

Growth applications, such as battery formation and test and semiconductor automated test equipment, aspire to rapidly transition to 48V PDNs to gain a competitive advantage but are hindered by existing investments in 12V power conversion. Some BFT implementations, for example, have been optimized to convert 12V to the battery cell load and cannot be readily re-engineered for 48V. The DCM3717/3735 products enable BFT systems engineers to preserve their existing investment by bridging 48V and 12V to create a high-performance 48V PDN.

The Vicor broad ecosystem of 48V centric power modules enables easy scalability and unprecedented flexibility when converting from high voltage to point-of-load for a wide variety of applications.

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New analog products from TI accurately measure currents and voltages with the highest resolution, enabling robots to perform detailed and complex tasks

Texas Instruments introduced the industry’s first functionally isolated modulators, helping designers achieve more precise motor control in compact robot designs. The new AMC0106M05, AMC0136 and AMC0106M25 isolated modulators enable increased precision and higher resolution of 12 to 14 effective number of bits for accurate and reliable phase current sensing and DC voltage sensing measurements. Offered in a small leadless package, the new products in TI’s isolated analog-to-digital converter portfolio help designers achieve smooth torque operation and fine motor control, while decreasing size and cost in low-voltage (<60V) robotics designs.

Why it matters

Engineers today are challenged to design smarter robots to perform more detailed tasks. The galvanically isolated modulators enable robotics engineers to achieve precise motor control and system protection in smaller, more sophisticated designs. This precision makes it possible for robots to complete a variety of complex tasks, such as threading a needle or handling small nuts and bolts. In addition, the small size of the new modulators—measuring just 3.5mm x 2.7mm—requires 50% less board space than competing reinforced isolation solutions. With this decrease in size, designers have more space to incorporate additional features that support precise control and reliable operation in compact robot applications.

“These modulators from TI enable designers to increase robotics accuracy and productivity in new use cases and smaller form factors, from the factory floor to the operating room,” said Karthik Vasanth, vice president and general manager of Data Converters and Clocks at TI. “For example, where humanoid robots could previously only complete simple tasks, our new functionally isolated modulators now allow them to carry out more dexterous and precise jobs.”

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