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🏓 Турнір з настільного тенісу серед студентів! kpi пн, 03/10/2025 - 10:47

Гуманітарне розмінування: гуртуємося задля успіху kpi пн, 03/10/2025 - 10:16

So, I tried to free form a similar clock I free formed earlier this year, except it includes the hours, minutes, and seconds. I wanted to see if I could possibly improve my free forming builds compared with the first clock I built, but honestly, it still came out ugly to me. At any rate, I kinda like the scraggly look of Freeform/dead bug electronics assembly. I’ll never be as good as Mohit Bhoite, Eirik Brandal, etc. However, I noticed that building stuff like this is calming to me. It’s difficult and stressful, although I find that when my job is pissing me off, I spent 15 minutes working on this clock to calm me down. The awesome part was after I assembled everything onto the base, I decided to just power it up and see if it worked. At first, I set my power supply to 12v and limited the current to 100mA. It powered up and hit the 100mA limit. I slowly increased the current, and when I hit 250mA, all the nixies counted down from 9 to 0, then counted up from 0 to 9, and displayed the time. Sort of. I had to ‘reset’ the DS1302 RTC, installed the button cell battery, and cycled the power…and it just worked. I set the time, and there it was, a working nixie Freeform clock! At first I was excited, then thought, “but now I have nothing to troubleshoot…” Where do I go from here? I don’t know; I may be seriously thinking about free forming Keith Bayern’s design, a discreet component nixie clock. That kit contains over 1,000 components, but it might be doable and pretty impressive lol submitted by /u/Asuntofantunatu [link] [comments]

Where does analog design stand in the rapidly growing artificial intelligence (AI) world? While neuromorphic designs have been around since the 1980s, can they reinvent themselves with building blocks like field-programmable analog arrays (FPAAs)? Are there appropriate design tools for analog to make a foray into the AI space? Georgia Tech’s Dr. Jennifer Hasler, known for her work on FPAAs, joins other engineering experts to discuss ways of accelerating analog design in the age of AI.

Read the full transcript of this discussion or listen to the podcast at EDN’s sister publication, EE Times.

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• Field-Programmable Qubit Arrays: The Quantum Analog of FPGAs
• Lowered Price for Field Programmable Analog Array (FPAA) Development Kit

The post How to reinvent analog design in the age of AI appeared first on EDN.

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Зустріч з бійцями Сил спеціальних операцій ЗСУ kpi сб, 03/08/2025 - 12:25

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Need to try still if it works submitted by /u/ImpressiveTaste3594 [link] [comments]

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Due to “high demand and requests from several participants”, there has been an extension to 17 March (14:00 Norwegian time) of the auction (begun on 28 February) of the assets of CrayoNano AS of Trondheim, Norway — a developer and manufacturer of semiconductor components, including UVC-LEDs, based on patented and proprietary nanomaterials technology, until its bankruptcy in January...

Енерго-Інноваційний Хаб КПІ: рік досягнень та нових можливостей kpi пт, 03/07/2025 - 18:28

Editor’s Note: This is a two-part series. Part 1 can be found here.

My father, John Edward Dunn, was a Foreman in the New York City Department of Bridges. His shop was in Brooklyn on Kent Avenue adjacent to the Brooklyn Navy Yard. His first assistant at that shop was a man named Connie Rank. Dad’s responsibilities were to oversee the maintenance and repairs of all of the smaller bridges in Brooklyn, Staten Island, and parts of Queens. The Mill Basin Bridge was one of his.

Dad was on call 24/7 in response to any bridge emergencies. At any time of day or night a phone call would come in and he would have to respond. When calls came in at 2 AM or 3 AM or whenever, the whole household would be awakened. Dad would answer the call and I would hear “Yeah. Okay, I’m on my way.” Then I’d hear Dad dialing a call where I’d hear “Connie? Yeah. See you there,” and that would be that. The routine was that familiar. Nothing further needed to be said. He wouldn’t get home again until at least 5:30 PM the following day for having responded to whatever emergency had occurred and then having worked a full day afterward without interruption.

Many of those emergencies were at the Mill Basin Bridge. One of them made the front page of a city newspaper. There was a full page photo of the bridge taken from ground level showing all kinds of emergency vehicles on the scene with all of their lights gleaming against the dark sky. Dad showed me that paper and asked “Do you see that little dot here?” I said “Yes,” and he said, “That little dot is me.” He knew where he had been standing.

Following one accident, perhaps it was the accident above, Dad apparently saved someone’s life. He was honored for that by Mayor Robert F. Wagner. Neither I at the age of twelve nor my sister at nine were ever told the details of the event, but it led to Dad shaking hands with the Mayor at New York City Hall.

John Dunn’s late father, John Edward Dunn, shaking hands with NYC mayor Robert F. Wagner circa 1956 to receive an award for his brave work saving a life as a foreman with the NYC Department of Bridges.

John Dunn is an electronics consultant, and a graduate of The Polytechnic Institute of Brooklyn (BSEE) and of New York University (MSEE).

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The post The downside of overdesign, Part 2: A Dunn history appeared first on EDN.

Specialty semiconductor and performance materials producer 5N Plus Inc (5N+) of Montreal, Québec, Canada has entered into an exclusive agreement (through its subsidiary AZUR SPACE Solar Power GmbH of Heilbronn, Germany) with ALLOS Semiconductors GmbH of Dresden, Germany — which provides 200mm and 300mm GaN-on-silicon micro-LED epiwafers, as well as licensing IP and transferring the technology — to complete the development and commercialization of a gallium nitride (GaN) IP portfolio that 5N+ has provided to ALLOS Semiconductors for a nominal value in exchange for future royalties...

NUBURU Inc of Centennial, CO, USA — which was founded in 2015 and develops and manufactures high-power industrial blue lasers — has announced a strategic partnership with artificial intelligence and robotics solutions provider COEPTIS Inc’s NexGenAI Affiliates Network (an AI-powered affiliate marketing platform designed to streamline marketing efforts through automation and advanced analytics). The collaboration is a pivotal component of NUBURU’s transformation plan, spearheaded by executive chairman Alessandro Zamboni, which aims to enhance operational efficiency and revamp the company’s business model...

India’s electronics manufacturing sector has witnessed remarkable growth, driving a rising demand for high-quality reflow ovens, which are essential for soldering surface-mount components onto printed circuit boards (PCBs). Several Indian companies have emerged as key players in this industry, offering advanced reflow oven solutions tailored to domestic and international requirements. Below is an overview of the top 10 reflow oven manufacturers in India, highlighting their technological advancements and industry contributions.

1. Heller India

Heller India, a subsidiary of Heller Industries, is known for its cutting-edge reflow soldering ovens. Their product range includes convection reflow ovens, voidless/vacuum reflow soldering ovens, and fluxless/formic reflow soldering ovens, as well as curing ovens. These solutions cater to applications such as surface-mount technology (SMT) reflow, semiconductor packaging, consumer electronics assembly, and power device packaging. Heller India’s products emphasize efficiency and sustainability, featuring Industry 4.0 compatibility, low-height top shells, and innovative flux management systems.

2. Leaptech Corporation

Headquartered in Mumbai, Leaptech Corporation provides a diverse range of SMT equipment, including high-performance reflow soldering ovens. They are authorized distributors of ITW EAE Vitronics Soltec’s Centurion Reflow Ovens, which offer exceptional reliability and precise thermal performance. The Centurion platform includes forced-convection SMT reflow systems with closed-loop process control, ideal for high-throughput PCB assembly environments. Leaptech also supplies Tangteck reflow ovens, including IR & hot air SMT reflow furnaces, BGA soldering reflow furnaces, and curing furnaces tailored to different production needs.

3. EMS Technologies

EMS Technologies, located in Bangalore, specializes in manufacturing reflow ovens and other SMT equipment. Their flagship model, the Konark 1020, is a 10-zone reflow oven designed for complex PCB assemblies. It features a Windows 10-based PC interface, data logging traceability, adjustable blower speed, and PID closed-loop temperature control, ensuring superior precision in soldering operations.

4. Mectronics Marketing Services

Mectronics Marketing Services, based in New Delhi, is a leading provider of electronic manufacturing equipment, including reflow soldering systems. Their EPS reflow ovens incorporate patented Horizontal Convection technology, ensuring uniform heating across the entire PCB. The company’s product lineup includes benchtop solder reflow ovens, batch ovens, automatic floor-style systems, hot plates, and vapor phase ovens, catering to various scales of electronics production.

5. Sumitron Exports

Operating from New Delhi, Sumitron Exports is a key supplier of high-quality soldering solutions, including reflow ovens. Partnering with renowned international brands, they bring advanced reflow soldering technology to the Indian market, addressing the needs of modern electronics manufacturers.

6. Accurex Solutions Pvt. Ltd.

Accurex Solutions Pvt. Ltd. is a leading supplier of SMT equipment, including advanced reflow soldering ovens. Their product range is designed to meet the high-performance demands of modern electronics manufacturing, ensuring precision and reliability.

7. SumiLax SMT Technologies Private Limited

Based in New Delhi, SumiLax SMT Technologies offers a wide range of reflow ovens, including models such as the T960 and T980. These ovens provide efficient and reliable soldering solutions, catering to diverse SMT production requirements.

8. Hamming Technology Private Limited

Located in Noida, Hamming Technology specializes in manufacturing lead-free reflow ovens. Their products feature advanced PID+SSR control modes and hot air circulation heating technology, ensuring efficient, consistent, and high-quality soldering processes.

9. Shenzhen Jaguar Automation Equipment Co., Ltd.

Although headquartered in Shenzhen, China, Shenzhen Jaguar Automation Equipment Co., Ltd. has a prominent presence in the Indian market. Their reflow soldering machines, including models like the A4, are known for their high precision and efficiency in SMT production lines.

10. GoldLand Electronic Technology Co., Ltd.

GoldLand Electronic Technology Co., Ltd. is another international player with a strong foothold in India, offering advanced reflow ovens suited for various SMT applications. Their products are recognized for quality and reliability in electronics manufacturing.

 

These companies play a crucial role in strengthening India’s electronics manufacturing ecosystem by providing innovative reflow oven solutions. Their commitment to technological advancements ensures that Indian manufacturers have access to state-of-the-art equipment, facilitating the production of high-quality electronic products.

The post Top 10 Reflow Oven Manufacturers in India appeared first on ELE Times.

Soft soldering is a process used to join metal components by melting a filler metal, known as solder, which has a low melting point, typically below 450°C (842°F). The solder forms a bond between the surfaces without melting the base metals. It is widely used in electronics, plumbing, and jewellery making due to its ability to create strong yet flexible joints. Unlike hard soldering or welding, soft soldering does not require extremely high temperatures, making it ideal for delicate workpieces.

How Soft Soldering Works

Soft soldering involves heating the joint area to a temperature sufficient to melt the solder but not the base materials. A soldering iron, torch, or another heat source is used to bring the solder to its melting point. When melted, the solder flows into the joint by capillary action and solidifies as it cools, forming a mechanical and electrical connection. The effectiveness of this process depends on the cleanliness of the surfaces, the proper use of flux, and the choice of solder alloy.

Soft Soldering Process

The soft soldering process follows several essential steps to ensure a secure and reliable joint:

1. Surface Preparation: Before soldering, the metal surfaces must be cleaned thoroughly to remove any dirt, oxidation, or grease. This can be done using abrasive pads, chemical cleaners, or flux.
2. Application of Flux: Flux is a chemical agent that prevents oxidation and helps the solder adhere to the metal surfaces. It is applied to the joint area before heating.
3. Heating the Joint: A soldering iron or other heat source is used to heat the metal surfaces to the required temperature. The heat must be sufficient to melt the solder but not damage the components.
4. Applying Solder: Once the surfaces are heated, the solder is applied to the joint. It melts and flows into the gap between the metals through capillary action, creating a bond.
5. Cooling and Solidification: After the solder has flowed into the joint, the heat source is removed, allowing the solder to cool and solidify. Proper cooling ensures a strong and durable bond.
6. Cleaning the Joint: Any residual flux or oxidation by-product should be cleaned off using alcohol or other cleaning solutions to prevent corrosion or electrical issues.

Soft Soldering Uses & Applications

Soft soldering is widely applied across various industries due to its versatility and ease of use. Some of its common applications include:

• Electronics: Soft soldering is extensively used in the electronics industry for assembling circuit boards, connecting wires, and securing components. It ensures reliable electrical conductivity while maintaining component integrity.
• Plumbing: In household plumbing, soft soldering is employed to join copper pipes, creating leak-proof connections. Lead-free solders are used to ensure safe drinking water systems.
• Jewellery Making: Soft soldering allows jewellers to join delicate metal pieces without compromising their structural integrity or aesthetic appeal.
• Automotive Industry: Automotive manufacturers use soft soldering for electrical connections in vehicles, ensuring durability and performance.
• Arts and Crafts: Artists and craftsperson utilize soft soldering for creating decorative metalwork, stained glass, and intricate designs.

Soft Soldering Advantages

Soft soldering offers several benefits, making it a preferred method for many applications:

• Low Operating Temperature: Soft soldering requires lower temperatures compared to brazing or welding, reducing the risk of heat damage to components.
• Ease of Use: The process is simple and does not require specialized training or expensive equipment.
• Cost-Effective: Soft soldering uses affordable materials and tools, making it an economical joining method.
• Good Electrical Conductivity: The soldered joints provide excellent electrical conductivity, making it ideal for electronic circuits.
• Reversibility: If necessary, soldered joints can be easily reworked or repaired by reheating the solder.
• Compatibility with Thin Materials: Soft soldering is suitable for delicate and thin metals that might be damaged by higher-temperature processes.

Soft Soldering Disadvantages

Despite its advantages, soft soldering has some limitations that must be considered:

• Lower Strength: Soft soldered joints are not as strong as brazed or welded joints, making them unsuitable for high-load applications.
• Limited Temperature Resistance: The low melting point of soft solder means that joints can weaken or fail at high temperatures.
• Flux Residue Issues: If not cleaned properly, residual flux can lead to corrosion or contamination in sensitive applications.
• Potential Toxicity: Some solder materials, particularly those containing lead, can be hazardous to health and the environment, necessitating the use of lead-free alternatives.

Conclusion

Soft soldering remains an essential technique in various industries, offering a balance of affordability, ease of use, and effectiveness. While it has certain limitations, its advantages make it a preferred method for applications requiring electrical conductivity, delicate metalwork, and low-temperature bonding. By understanding the process, applications, and considerations, professionals and hobbyists alike can make the most of soft soldering in their projects.

The post Understanding Soft Soldering: Definition, Process, Working, Uses & Advantages appeared first on ELE Times.