Українською
  In English
Feed aggregator
Winners Announced! 2025 Configurable Logic Design Challenge
I made this cute arduino game console. Github files included
![]() | submitted by /u/Keyboard_Warrior364 [link] [comments] |
Innoscience collaborating with NVIDIA on 800VDC power architecture for AI data centers
Wearable Tracks Meds for Patients With Bipolar Disorder Through Sweat
Long time lurker, getting in on the 'my first pcb' trend!
![]() | There was an engineer I met who gave me a laptop with Altium 09 on it and told me that if I could get him the gerbers for a fun kids' soldering project for the STEM booth, he'd hire me as his EE. He let me know that he wanted silver teeth and spoke about layers and silk screening - his eyes glazed over - but I accepted the challenge, as I had no idea what a Gerber was at this point. I took it on, fumbled through and figured out how to use Altium and TxRex was born! The second pic is 6 months into my Altium experience. Love this stuff! [link] [comments] |
КПІ ім. Ігоря Сікорського і Ericsson: новий рівень співпраці у сфері 5G
🇺🇦🇸🇪 1 серпня 2025 року наш університет підписав Меморандум про співпрацю з Ericsson в Україні та Меморандум про приєднання до міжнародної програми Ericsson Educate: 5G University.
Small "random" number generator
![]() | It was a fun project for one day, the idea came from the thought "what circuit can I fit in the one box of matches?" So I did, the boards fit, of course, without the battery. I kind of like this "naked" look of it. [link] [comments] |
Triac and relay combination

Check out this link for On Semiconductor’s datasheet for a line of “Zero-Cross Optocoupled Triac Drivers.”
The ability to zero-cross when turning on AC line voltage to some loads may be advantageous. The following sketch in Figure 1 is a slightly simplified version of one circuit from the above datasheet.
Figure 1 A simplified triac drive arrangement that will turn on AC line voltage to a load.
The zero-crossover behavior of the triac and its driver operates nicely as the control input signal at pin 2 decides if AC is applied to the node or not. However, I had a somewhat different triac control requirement calling for two manually operated pushbuttons, one for turning AC power on and the other for turning AC power off while preserving the zero-crossover feature. Another issue was that at the required load power, the thermal burden to be borne by the controlled triac was much too severe.
The thermal burden on the triac was relieved as follows in Figure 2.
Figure 2 The revised triac drive arrangement with a relay added such that when the pushbutton is pressed, the triac turns on AC to the load using its zero-crossover feature.
A relay was added whose coil was tied in parallel with the load and whose normally open contacts were in parallel with the anode and cathode of the triac.
When the pushbutton was pressed “on,” the triac would turn on AC to the load using its zero-crossover feature and then the relay contacts were closed across the triac. When the relay contacts closed, the load current burden was shifted away from the triac to the relay. The triac only needed to operate through the duration of the relay’s closure time which in the case I was working on, was approximately 50 ms or just a little longer than three cycles of the input AC line voltage.
We had the zero-crossover benefits, and the triac never even got warm.
One normally-open pushbutton for turning on the load’s power was set up to drive the LED at the input of the optocoupler. You can come up with a million ways to accomplish that, so we’ll just leave that discussion aside.
Another normally-closed pushbutton was set up to remove the drive from the relay’s coil. With the first pushbutton assumed to be open and idle at that moment, and since the triac was already off, the second relay’s contacts would open up, and the load power would be turned off.
John Dunn is an electronics consultant and a graduate of The Polytechnic Institute of Brooklyn (BSEE) and of New York University (MSEE).
Related Content
- Simple SSR has zero-cross on/off switching
- TRIAC Dimmer Avoids Snap-ON
- Optimizing the Triacs
- TRIAC Dimmer with Active Reset
The post Triac and relay combination appeared first on EDN.
Munich District Court rules in favor of Infineon in patent-infringement case against Innoscience
Navitas powering Xiaomi’s 90W next-gen GaN charger
India Secures Tariff Exemption for Electronics Exports to U.S.
India has provisionally retained tariff-free access to the U.S. for select electronics exports—including servers, laptops, and smartphones—due to an ongoing Section 232 national security investigation. While Washington has imposed broad 25% reciprocal duties on most Indian goods starting August 7, 2025, these electronics remain exempt for now, offering India a notable competitive advantage in the U.S. market.
Industry Reaction and Strategic Timing
The U.S. directive imposing tariffs is scheduled to take effect on August 7, 2025. India exports shall, however, remain unaffected for now because Section 232 is under review. Hence, the U.S. continues to facilitate duty-free exports of smartphones, computers, servers, and several other tech goods.
The move has been hailed by the industry organizations and analysts, who also compare that China faces effective duties of up to 30% on similar electronics exports to the U.S, while India (that is alongside Vietnam and Taiwan) continues to enjoy the zero tariffs, thus making their electronics at times 20 percent cheaper to compete with in the U.S. Market.
Increased Exports and Mid-Term Prospects
Electronics exports of India have been on a fast track; from around $8.4 billion in FY19 to $23.6 billion in Electronics exports have been growing rapidly in India: Whereas exports stood at around $8.38 billion in FY19, they touched $23.61 billion in FY23, with mobile-phone exports now accounting for more than half of total exports. Assembling of iPhones in India constitutes a significant piece of the pie.
Most Indian exports will face a 25% tariff starting August 7, 2025, with electronics temporarily exempt under Section 232 review. All Indian exports now face a 25% tariff starting August 7, barring electronic items. The tariff relates to Washington’s concerns concerning Indian trade barriers and India’s ongoing defense and energy ties with Russia.
Experts warn that should the Section 232 exemption be lifted, the Indian electronics exports would face sudden cost pressure, particularly in the American market. Practically, the move may curtail Apple’s plans to scale up India-based production of iPhones and thereby fast-track changes in global supply chains.
Government & Industry Positioning
Top trade officials emphasize that Section 232 continues to be reviewed, keeping India in a temporary window to consolidate export momentum.
The Commerce Ministry reiterated that in the negotiations, it remains firm to protect national interests and whistles down all policy options to defend India’s exporters and MSMEs.
Industry associations such as ICEA stipulate low-duty reciprocal regimes on U.S. imports of electronics to keep both countries competitive U.S. tariffs are currently about 16.5% in India, while those in the U.S. are almost zero.
Conclusion:
India enjoys its present position in electronic exports due to a temporary but crucial tariff exemption. The next two weeks will determine if this carve-out will be Permanent under Section 232, or if Indian tech products will soon be faced with the harsh tariffs. Negotiations for a wider Bilateral Trade Agreement (BTA) could probably lay the ground for a more expanded solution by September 2025, which would highlight concerns for tariff reductions, digital-trade access, and regulatory fairness.
For now, Indian exporters have the advantage of a preferential footing but may have to be nimble enough in the coming months to adapt to the probable changes in U.S. trade policy.
The post India Secures Tariff Exemption for Electronics Exports to U.S. appeared first on ELE Times.
Top 10 Steel Companies in India
India has the second largest steel production after China and a vibrant steel industry that leads the development of the country’s industries, infrastructure, and economic transformation. However, with the government pushing for ‘Make in India’ and similar initiatives, coupled with vast infrastructure projects on Bharatmala and Sagarmala, demands for quality steel have soared. This highly competitive environment has seen a few steelmakers in India gain in reputation because of their production capacity, technology innovation, and sustainability practices.
Here comes a detailed list of India’s top 10 steel brands, along with their specializations and the rising stars in this industry.
- Tata Steel Ltd.
Tata Steel is one of the oldest and most respected steel companies in India, established in 1907. Tata Steel is into manufacturing esteemed quality flat and long steel products and has always worked on innovations in green manufacturing and steel technologies. Tata Steel operates major plants in Jamshedpur, Kalinganagar, and Meramandali, producing flat and long steel products. It also runs captive mines and collieries in Jharkhand and Odisha to support its integrated steelmaking operations.
- JSW Steel
The second-largest steel-producing company of the country, a part of the JSW Group. JSW Steel is known for its state-of-the-art production practices and has done exceedingly well in operations.
A part of the JSW Group, it is India’s second-largest steel company. JSW Steel is noted for its state-of-the-art manufacturing facilities and has made substantial investments in digital transformation and carbon-neutral initiatives.
- SAIL
SAIL Steel Authority of India Ltd It was set up in 1973 as a public sector undertaking and runs five large integrated steel plants at Bhilai, Rourkela, Durgapur, Bokaro, and Salem. Under its production staff come structural steel, rails, plates, TMT bars, and special steels, which serve railways, defense, construction, among others. As a public-sector company, SAIL operates extensively across India, with large integrated steel plants.
- Jindal Steel and Power Ltd. (JSPL)
JSPL (Jindal Steel and Power Ltd.) It was founded in 1979 by the Jindal Group, and the major plants are situated in Raigarh (Chhattisgarh), Angul (Odisha), and Patratu (Jharkhand). JSPL is strong in long products and rail infrastructure steel. It is also a leader in producing steel through coal gasification, thereby causing a huge reduction in carbon emissions.
- ArcelorMittal Nippon Steel India (AM/NS India)
AM/NS India (ArcelorMittal Nippon Steel India) The JV was created in 2019 by the merger of ArcelorMittal and Nippon Steel. It keeps its major plants in Hazira (Gujarat), Paradeep (Odisha), and Pune. AM/NS India manufactures value-added, automotive-grade steel, with technologies such as carbon capture and Industry 4.0 tools.
Set up as a joint venture between the global giants ArcelorMittal and Nippon Steel, with a technology-intensive value-added steel culture growing in India under their aegis.
- Essar Steel
Essar Steel (now AM/NS India) The group was set up in 1976 and got merged into AM/NS India in 2019. With the merging of Essar into AM/NS India, Essar was known, before, for its hot-rolled coils and cold-rolled products, galvanized sheets, and plates, with an enormous share in exports. Its major operations were in Hazira, Visakhapatnam, and Pune.
- Bhushan Power & Steel Ltd.
The planning and coordination of the entire Bhushan Power & Steel manufacturing process is through a JSW Group acquisition. The company markets products such as cold-rolled coils, galvanized sheets, pipes, and billets in Sambalpur, Odisha, Chandigarh, and Derabassi-I capacity and technological enhancement since acquisition. It manufactures various steel products, inflat and outcoat steel types. The acquisition by JSW has resulted in further enhancement of technical and capacity prowess.
- RINL (Vizag Steel)
In operation since 1982, RINL is government-owned, situated in Visakhapatnam, Andhra Pradesh. It deals in long steel products like rebars, wire rods, and structurals and claims to have a very low carbon footprint and superior standards. Rashtriya Ispat Nigam Limited is specialized in long steel products and recognized for low carbon footprints with quality assurance. Its products are largely employed in construction along with heavy engineering.
- Electrosteel Steels
Integrating Electrosteel Steels industries under the Vedanta group since 2018, it has plants at Bokaro in Jharkhand, Khardah in West Bengal, and Elavur near Chennai. It manufactures ductile iron pipes, billets, and wire rods vital for urban infrastructure and sanitation networks.
- Lloyds Metals and Energy Ltd
Lloyds Metals and Energy Ltd. Established in 1986 and headquartered in Maharashtra, Lloyds Metals has plants located at Gadchiroli and Chandrapur. It deals in sponge iron and long steel products such as TMT bars and wire rods and is moving fast towards production with solar furnaces and captive power generation. One among the quickest-growing steel manufacturers, Lloyds Metals is concentrating on sponge iron and long products, now with major capacity expansions underway.
Leading Indian Steel Brand’s Adoption of Advanced Technology:
Brand | Key Products | Technology Used | Annual Capacity (MT) | Application Area |
Tata Steel | Flat steel, TMT bars, Automotive-grade steel | Hydrogen-based Steelmaking (Pilot stage only) (H2 DRI), IoT, AI bots | 20+ | Clean production, Predictive Maintenance |
JSW Steel | HR/CR coils, Sheets, TMT bars | Digital Twin, AI-powered Quality Control | 28–30 MT | Smart Manufacturing, Defect Detection |
SAIL | Structural steel, Rails, Plates | Smart Blast Furnace Automation, Robotic Inspection | 19.5 | Smelting, Structural Safety |
JSPL | Rails, TMT rebars, Angles, Channels | Coal Gasification, Machine Learning (ML) | 9+ | Green steelmaking, Plant Efficiency |
ArcelorMittal Nippon Steel India | Value-added steel, Automotive steel | Carbon Capture & Storage (CCS), Industry 4.0 Tools | 9.6 | Emissions Management, Smart Logistics |
Bhushan Power & Steel | Cold-rolled & Galvanized coils | ERP Integration, RFID for Supply Chain | 3.5 | Inventory & Production Tracking |
RINL (Vizag Steel) | Structural bars, Wire rods, Rebars | Advanced SCADA systems, Energy-efficient Furnaces | 7 | Real-time Monitoring & Energy Management |
Electrosteel Steels | Ductile Iron Pipes, Billets | Smart Casting Technologies | 1.5–2 | Billet and Pipe Manufacturing |
Lloyds Metals & Energy | Sponge Iron, TMT Bars | Uses solar power for captive consumption, Automation | 1.5 | Sponge Iron Production |
Conclusion:
The Indian steel industry is not only supporting infrastructure in the country; it is now also emerging as a global force. The top steel brands-Tata, JSW, SAIL, among others-are reinventing the production system with sustainability and smart manufacturing in their sights. Meanwhile, emerging players like Shyam Metalics and Godawari Power innovate while expanding swiftly, thereby dislodging traditional market hierarchies.
India’s steel industry will remain a strong, scalable, and sustainable backbone in the nation’s growth journey.
The post Top 10 Steel Companies in India appeared first on ELE Times.
Aehr enters quarterly loss as revenue falls 23%
TVS Electronics Expands Its Footprint in the Enterprise AIDC Market with a Comprehensive Portfolio of Mobility, Products & Solutions Across India
- The expansion opens new opportunities for end customers in industries such as manufacturing (automobile/electronics), ports, pharma, retail, e-commerce, q-commerce, logistics and healthcare
- Its AIDC portfolio includes an array of products such as Mobile Computers (HHDs), High-Definition Scanners, Industrial Grade Label Printers, and more
TVS Electronics, a leading player in offering integrated end-to-end electronic solutions, has announced the launch of its Enterprise Automatic Identification and Data Capture (AIDC) with an aim to make it simple and accessible to everyone. Leveraging its comprehensive range of enterprise-grade product solutions, TVS Electronics is set to expand beyond its retail offerings and compete strongly in the enterprise AIDC segment, moving beyond its trusted retail offerings.
This move will help Indian businesses digitize operations with affordable, locally supported technology. TVSE’s strong service network ensures quick maintenance, while its end-to-end solutions—from sales to refurbished equipment auction reducing long-term costs. TVS Electronics focus is to introduce practical, scalable tech that improves accuracy and efficiency in inventory, tracking, and data management. By combining global-grade AIDC tech with India-specific needs, TVS Electronics aims to be a one-stop partner for companies embracing automation. Their approach simplifies digital transformation, making advanced tools accessible to enterprises of all sizes.
India’s track and trace sector is accelerating fast, projected to grow at a strong CAGR of 21.3% by 2030. This surge is powered by the integration of AIDC technology with smart tracking software, delivering real-time visibility and seamless automation across the supply chain. Logistics operations are becoming more agile, manufacturers gain better control and efficiency, e-commerce fulfillment is faster and more accurate, and warehousing is undergoing a high-tech makeover. Together, these innovations are driving a smarter, connected, and more responsive supply chain ecosystem across India.
TVS Electronics’ AIDC portfolio includes a broad range of solutions designed to meet the demanding requirements of enterprise operations, such as:
- Mobile Computers (HHDs):Handheld devices for seamless mobility and real time data capture.
- Rugged Scanners:Industrial grade wired, and Bluetooth enabled wireless scanners that provide reliability in harsh environments.
- High-Definition Scanners:Precision scanners (HD, HHD, XHD, UHD) for electronics industries requiring barcode scanning below 3 mil size.
- Industrial-Grade Label Printers:Label printers designed for durability, offering 203 dpi/300 dpi resolutions.
- Mobile Printers:Compact, Bluetooth-enabled printers designed for mobile workforces.
- Rugged Tablets:Tablets built to withstand tough industrial environments, enabling better data management and communication in the field.
TVS Electronics delivers more than just hardware—it’s building a full-fledged automation ecosystem. By integrating with ERP platforms like SAP and Oracle, and leveraging tools such as SOTI for WMS and MDM, TVSE offers seamless end-to-end solutions that elevate operational efficiency and supply chain visibility. Its approach goes far beyond product delivery, prioritizing strategic alliances with software providers, IoT platform innovators, and system integrators. From consultation to training and ongoing support, the company ensures each solution is tailored, enterprise-ready, and optimized across every layer of the tech stack.
Mr. C. Balaji, Vice President, PSG Business, TVS Electronics, said, “TVS Electronics aims to not only provide superior AIDC devices but to also bring tailored, customizable solutions to enterprises across industries. This launch marks a significant milestone for TVS Electronics as we reposition ourselves as a key player in the enterprise AIDC segment, breaking the stereotype of being a retail-focused brand. By building a robust partner ecosystem, we aim to foster customer trust and drive enterprise growth. Our shift towards value-based selling drives sustainable growth while addressing niche industry needs with tailored solutions. With this move, TVS Electronics solidifies its position as a full-spectrum solutions provider in enterprise technology, leveraging the ‘Make in India’ initiative and digital transformation trends to drive growth and innovation.”
TVS Electronics showcases its competitive advantage through highly customizable Enterprise AIDC solutions that integrate seamlessly with leading ERP (Enterprise Resource Planning) platforms, enabling AI-powered insights and real-time analytics for enhanced operational efficiency. Its advanced Tumakuru facility ensures top-tier quality, reduced lead times, and cost-effective production—fueling innovation and strengthening global competitiveness. With tailored end-to-end offerings like Warehouse Management Systems (WMS) and Real-Time Locating Systems (RTLS), and strategic collaborations with Independent Software Vendors (ISVs) and system integrators, TVSE empowers businesses across sectors with scalable automation and intelligent tracking solutions.
With this, TVS Electronics continues to be a reliable OEM supplier in the enterprise AIDC market, expanding its focus beyond retail to serve large enterprises. Committed to staying ahead of trends like automation and IoT, TVS Electronics will deliver enterprise-grade AIDC solutions to empower businesses.
TVS Electronics strengthens its market position and drives enterprise growth by offering tailored solutions backed by a shift to value-based selling, boosting profitability. The company’s focus on digital transformation reinforces its role as a full-spectrum enterprise technology provider. With one of the largest service networks in India, TVS Electronics delivers industry-best turnaround times and exceptional customer support. Its end-to-end IT lifecycle offerings—from after-sales service to second-hand product auctions—ensure optimal efficiency and cost-effectiveness, making it a reliable one-stop solution for businesses.
The post TVS Electronics Expands Its Footprint in the Enterprise AIDC Market with a Comprehensive Portfolio of Mobility, Products & Solutions Across India appeared first on ELE Times.
PoE+ M12 M.2 Power Delivery PCB
![]() | Does’t get much cooler than this. [link] [comments] |
3D Printing a CubeSat Mockup with an All-Metal Conductive Filament on an Bambu A1 Mini
![]() | submitted by /u/Kupros1 [link] [comments] |
Diodes Inc Reveals Ideal Diode Controllers for New 48 V Automotive Systems
My failed ugly hack job PCB (Class B Audio power amplifier) Don't be dumb like me.
![]() | Ok I'm not a noob but I haven't built anything for a long long time, this PCB circuit was a complete fail haha I didn't expect to have issues with it but it's on me for not thinking properly. Simple OpAmp driving a class B output stage (unbiased, the opamp is fast enough to prevent crossover distortion) I was using TO-3 transistors with 30 volts power supply input. This circuit worked great on a breadboard. I thought I could hack together a PCB and instead of taking time to do proper design I just hack and slashed the PCB "pads" with a dremel bit. Probably not the best idea... The amplifier simply refused to amplify symmetrically - almost all the signal was in the upper NPN transistor, and in fact I could hear the output capacitor vibrating at the 1Khz tone I was feeding into the circuit. See that potentiometer? It was meant to adjust the OpAmp's voltage on the positive input so I could fine tune the symmetry of the amplifier, but it wouldn't affect anything. The upper NPN would get super hot and the PNP wasn't do much at all. Also the circuit was drawing like 250ma without any input signal (whereas when it was on the breadboard it would only draw 5ma, because the OPAMP was keeping the transistors off when there was no signal) At first I thought I possibly had a bad connection somewhere, like wired wrong I looked at this thing for a few hours, all the parts were in the right place. I could not find any weird shorts either. Tested different sections with a multimeter to see. The main thing that would always come back wrong was the voltage on the OPamp + input, it was like in millivolt range, I even replaced the POT and still nothing. I think it was probably oscillating, you can see my thicker output wires? They *twice* cross over the wires that are inputs to the transistor base. Ya, that's probably a really stupid thing to do. Power transistors with a gain of around 70 (beta). Anyway, I don't know how I though this was ever going to work LOL. I guess I should have more patience next time and design a proper layout. Probably use perfboard instead I was using big TO-3 transistors and attaching them to a heatsink . I cut the transistors off of this board . I put them back into my circuit on a breadboard and everything works perfectly again haha. So ya, layout is important DERP. One thing I didn't think to try was lowering the gain of the OpAmp to see if it was oscillating. Right now the gain is at 33 (AC gain) I could have tried dropping that to like 5 to see if it changed anything. Anyway, time to start over and build a proper board that keeps the input lines well away from the higher current output lines. [link] [comments] |
STMicro to buy part of NXP Semiconductors' sensor business for up to $950 million
![]() | submitted by /u/1Davide [link] [comments] |
Pages
