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LED headlights: Thank goodness for the bright(nes)s

EDN Network - Mon, 02/10/2025 - 16:57

My wife’s 2018 Land Rover Discovery looks something like this:

with at least one important difference, related (albeit not directly) to the topic of this writeup: hers doesn’t have fog lights. They’re the tiny shiny things at the upper corners of the front bumper of the “stock” photo, just below the air intake “scoops”. In her case, bumper-colored plastic pieces take their places (and the on/off control switch normally at the steering wheel doesn’t exist either, of course, nor apparently does the intermediary wiring harness).

More generally, the from-factory headlights were ridiculously dim yellow-color temperature things, halogen-based and H7 in form factor. This vehicle, unlike most (I think) uses two identical pairs of H7, albeit aimed differently, one for the “low” (i.e. “dipped” or “driving”) set and the other for the “high” (i.e. “full” or “bright”) set. Land Rover didn’t switch to LED-based headlights until 2021, but the halogens were apparently so bad that at least one older-generation owner contracted with a shop to update them with the newer illumination sets both front and rear.

On a hunch, I purchased a set of Auxito LED-based replacement bulbs from Amazon for ~$30, figuring them to be a fiscally rationalizable experiment regardless of the outcome success-or-not. These were the fanless 26W 800 lumen variant found on the manufacturer’s website:

Here’s an accompanying “stock” video:

Auxito also sells a brighter (1000 lumens), more power-demanding (30W) variant with a nifty-looking integrated cooling fan:

When they arrived, they slipped right into where the halogens had been; the removal-and-replacement process was a bit tedious but not at all difficult. I’d been pre-warned from my preparatory research (upfront in the manufacturer’s product page documentation both on its and Amazon’s websites, in fact, which was refreshing) that dropping in LEDs in place of halogens can cause various issues, resulting from their ongoing connections to the vehicle’s CAN bus communication network system, for example:

LED upgrade lights are great. They’re rugged, they last far longer than conventional bulbs, and they offer brilliant illumination. But in some vehicles, they can also trigger a false bulb failure warning. Some cars use the vehicle’s computer network (CANbus) system to verify the functioning of the vehicle’s lights. Because LED bulbs have a lower wattage and draw much less power than conventional bulbs, when the system runs a check, the electrical resistance of an LED may be too low to be detected. This creates a false warning that one of the lights has failed.

Here’s the other common problem:

A lot of auto manufacturers use PWM (or pulse width modulation) to precisely control the voltage to a bulb. One of the benefits of doing this is to improve bulb life. These quick, voltage pulses (PWM) do not give a bulb filament time to cool down and dim, so for halogen bulbs the pulses are not noticeable. However, with an LED bulb, these pulses are enough to turn the LEDs off and on very quickly, which results in a flashing of the light.

Philips sells LED CANbus adapters which claim to fix both issues. Auxito also says that it will ship free adapters to customers who encounter problems, albeit noting (in charming broken English):

Built-in upgraded CANBUS decoder, AUXITO H7 bulbs is perfectly compatible with 98% of vehicles. A few extremely sensitive vehicles may require an additional decoder.

I’m delighted to be able to say—hopefully not jinxing myself in the process—that I’m apparently one of those 98%. The LED replacement bulbs fired up glitch-free and have remained problem-less for the multiple months that we’ve used them so far. The color temperature mismatch between them (6500K) and the still-present halogen high beams, which we sometimes also still need to use and which I’m guessing are closer to 3000K, results in a merged  illumination pattern beyond the hood that admittedly looks a bit odd, but I’ve bought a second Auxito LED H7 headlight set that I plan to install in the high-beam bulb sockets soon (I promise, honey…).

I’ve also bought a third set, actually, one bulb for use as a spare and the other for future-teardown purposes. In visual sneak-peek preparation, here are some photos of an original halogen bulb, as usual accompanied by a 0.75″ (19.1 mm) diameter U.S. penny for size comparison purposes:

and the LED-based successor, first boxed (I’m only showing the meaningful-info box sides):

and then standalone:

For above-and-beyond (if I do say so myself) reader-service purposes, I also scanned the user manual, whose PDF you can find here:

And with that hopefully illuminating (see what I did there?) info out of the way, I’ll close for today, with an as-usual invitation for reader-shared 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 LED headlights: Thank goodness for the bright(nes)s appeared first on EDN.

CEA-Leti presents advances in integrated optics on silicon

Semiconductor today - Mon, 02/10/2025 - 14:44
At Photonics West 2025 in San Francisco (25–30 January), micro/nanotechnology R&D center CEA-Leti of Grenoble, France presented three papers detailing its latest improvements to chemical detection, high-speed communication and LiDAR performance with integrated optics on silicon...

AlixLabs showcasing latest APS findings at SPIE Advanced Lithography + Patterning

Semiconductor today - Mon, 02/10/2025 - 13:58
Sweden-based AlixLabs AB (which was spun off from Lund University in 2019) has used its Atomic Layer Etching (ALE) Pitch Splitting technology (APS) technology to etch structures corresponding to commercial 3nm semiconductor processes on test silicon provided by Intel. The results will be shared in full by chief technology officer & co-founder Dmitry Suyatin at the SPIE Advanced Lithography + Patterning trade show in San Jose, CA, USA (23–27 February)...

Taiyo Nippon Sanso selling BRUTE Peroxide in Japan

Semiconductor today - Mon, 02/10/2025 - 13:32
After supplying Peroxidizer highly concentrated hydrogen peroxide gas delivery systems since 2013, industrial gas company Taiyo Nippon Sanso Corp (TNSC) of Tokyo, Japan (part of Nippon Sanso Holdings Group) has added to the BRUTE suite of chemicals by beginning to sell BRUTE Peroxide in Japan...

Top 10 Bomber Jets in the World

ELE Times - Mon, 02/10/2025 - 13:27

Modern bomber jets represent the pinnacle of aerospace engineering, combining stealth, speed, payload capacity, and cutting-edge avionics. The evolution of these aircraft has been driven by the need for superior strategic deterrence, precision strikes, and the ability to operate in contested environments. Here’s a look at the top 10 bomber jets in the world as of 2025, ranked based on their technological capabilities, combat effectiveness, and future potential.

  1. Northrop Grumman B-21 Raider (USA)

The B-21 Raider is the latest stealth bomber developed for the United States Air Force (USAF). Designed to replace the aging B-1B Lancer and B-2 Spirit, it features next-generation stealth technology, extended range, and AI-assisted avionics. The aircraft is optimized for both nuclear and conventional strikes, with the ability to penetrate sophisticated air defense systems. It is expected to enter service by the late 2020s.

  1. Northrop Grumman B-2 Spirit (USA)

The B-2 Spirit remains one of the most advanced stealth bombers ever built. Featuring a flying wing design, it can evade radar detection and deliver nuclear and conventional payloads. Though expensive to maintain, its strategic importance remains unparalleled.

  1. Tupolev PAK DA (Russia)

Russia’s PAK DA, currently in development, is envisioned as a long-range stealth bomber capable of carrying hypersonic weapons. It will replace the Tu-160 and Tu-22M3 bombers, leveraging a flying wing design similar to the B-2 Spirit.

  1. Tupolev Tu-160M2 (Russia)

The upgraded Tu-160M2 is an improved version of the Cold War-era Tu-160. It boasts advanced avionics, electronic warfare systems, and extended operational range, making it Russia’s premier supersonic strategic bomber.

  1. Rockwell B-1B Lancer (USA)

Despite its age, the B-1B Lancer remains a formidable long-range bomber. With a variable-sweep wing design, it can reach supersonic speeds and carry a massive payload, including precision-guided munitions.

  1. Xian H-20 (China)

China’s H-20 is expected to be a game-changer in strategic bombing. It is anticipated to feature advanced stealth, extended range, and the ability to deliver nuclear and conventional payloads deep into enemy territory.

  1. Tupolev Tu-22M3M (Russia)

The Tu-22M3M is a modernized version of the Tu-22M3, featuring improved avionics, radar systems, and precision-guided missile capabilities. It plays a critical role in Russia’s tactical and strategic bombing operations.

  1. Boeing B-52H Stratofortress (USA)

The legendary B-52H, first introduced in the 1950s, continues to serve as a backbone of the USAF’s bomber fleet. Modernized with advanced electronics and weaponry, it remains a highly effective platform for strategic operations.

  1. Dassault Rafale F4 (France) – Tactical Bomber Variant

While primarily a multirole fighter, the Rafale F4 variant is equipped with advanced strike capabilities, making it a formidable tactical bomber. It carries nuclear-capable ASMP-A missiles, enhancing France’s strategic deterrence.

  1. Su-34 Fullback (Russia)

The Su-34 is a tactical bomber with exceptional maneuverability and survivability. Designed for deep-strike missions, it boasts heavy payload capacity, modern avionics, and electronic warfare capabilities.

Conclusion

The evolution of bomber jets continues to shape global military strategies. While stealth and electronic warfare capabilities dominate future designs, legacy bombers remain critical with modernization programs. The coming decades will see further advancements in hypersonic weapon integration, AI-assisted operations, and next-gen stealth technologies, redefining the role of bombers in modern warfare.

The post Top 10 Bomber Jets in the World appeared first on ELE Times.

New Business, New Opportunities in Shanghai at NEPCON China 2025

ELE Times - Mon, 02/10/2025 - 12:45

NEPCON China is the leading B2B event in the electronics assembly field. It brings
together leading industry brands, innovating new areas of IC packaging, attracting
emerging companies to join, and integrating new resources in key fields.

Its concurrent, highly interactive events include conferences, competitions, award
programs and business matchmaking, providing an incomparable business networking
and learning platform for expanding new businesses in fast-growth industries and
regions.

It helps you to explore future opportunities in new fields, such as AI, humanoid robotics,
and the low-altitude economy by learning about industry trends and gaining insight via
face-to-face exchange.

Coming this April 22-24, 2025 to the Shanghai World Expo Exhibition & Convention
Center, NEPCON China 2025 is expected to exceed 45,000 m 2 of show space, attracting
more than 500 exhibiting enterprises and brands, while hosting more than 20 industry-
relevant and engaging summits and activities. Exhibitor segments of NEPCON China 2025
will showcase SMT, test & measurement equipment, dispensing & spraying equipment, smart factory, semiconductor packaging and testing equipment, electronic components, and more. The show will additionally focus on technologies and solutions for 3C, automotive electronics, wireless communication devices and systems, new energy, and
rail transit technology with leading exhibitors including ASMPT, HANWHA, YAMAHA,
ASYS, BTU, ERSA, Omron, TRI, QUICK, and GKG.

Added show floor highlights include the Japan Electronics and Automation Zone,
Electronic Materials Zone, and the Semiconductor Packaging and Testing Live DEMO,
among other specialty zones.

NEPCON China 2025 will showcase the latest in innovative products and technologies.
NEPCON ∞ SPACE is set to unveil a dedicated smart car disassembly zone, strategically
designed to engage buyers from the smart car manufacturing supply chain. The
showcase will feature a comprehensive demonstration line for packaging and testing
processes, including the aspects of integrated circuits, optical modules, and power
modules. In addition, the event will host Country Days, factory tours, and exclusive
matchmaking sessions for overseas buyers from Vietnam, Malaysia, Indonesia, and other specialty regions, ensuring an impressive and engaging experience for all attendees.

The post New Business, New Opportunities in Shanghai at NEPCON China 2025 appeared first on ELE Times.

How shielding protects electronic designs from EMI/RFI disruptions

EDN Network - Mon, 02/10/2025 - 11:09

Electromagnetic interference (EMI) and radiofrequency interference (RFI) refer to electromagnetically generated noise that can interfere with products’ performance and reliability. RFI is a subset of EMI that refers to radiated emissions such as those from power or communication lines.

Design engineers must strategically reduce EMI and RFI at every opportunity, especially since some sources are naturally occurring and impossible to remove from the environment.

Engineering professionals should begin by using design choices that mitigate these unwanted effects. For example, trace placement can reduce undesirable interference since a PCB’s traces carry current from drivers and receivers.

One widely established tip is to keep the distance between traces at least several times the width of individual traces. Similarly, designers should separate signal-related traces from others, including those associated with audio or video transmission.

The design-centered tools can help all parties test different possibilities to find the ones most likely to work in the real world. One such tool allows designers to ease the transition from design to manufacture by creating a digital twin of the production environment. This format-agnostic platform also enables real-time collaboration, shortening the time required for clients to approve designs.

Select appropriate internal filters and shields

Besides following design-related best practices, professionals building electronics while reducing EMI and RFI must identify opportunities to suppress and deflect them without adding too much weight to the devices. That is especially important in cases where people build electronics for aerospace and automotive applications.

The general process is identifying trouble spots after making all appropriate design-related improvements. Engineers should then proceed by applying filtering circuits on the inputs and outputs. Next, they can apply shields. These products surround at-risk components, creating a protective barrier.

The shields are typically metal or polyester, and engineers use industrial machines to form them into the desired shapes. While filters allow harmless frequencies to pass through them, shields block and redistribute EMI to mitigate their potentially dangerous effects.

A particular point is that filters only block EMI moving through physical connections such as cables. EMI transmission occurs through the air and needs no entry point. Additionally, designers will get the best results by scrutinizing how the electronic device functions and acting accordingly. One possibility is to install filters at heat sinks to control the EMI that would otherwise come through the holes that promote thermal management.

Consider electrospray technologies

An emerging EMI protection is to deposit electrospray materials onto surfaces or components. In addition to its cost-effectiveness, this solution offers customizable results because engineers can add as much as their applications require.

Although many of these efforts are in the early stages, design engineers should monitor their progress and consider how to incorporate them into their future products. One example comes from a mechanical engineering doctoral student exploring how to apply protective layers to electronics by dispensing aerosols or liquids onto them with electricity. This approach could be especially valuable to manufacturers that create increasingly small products for which traditional shielding techniques are less suitable.

The student argues that electrospray technologies for shielding can open opportunities for protecting miniaturized devices. Her technique deposits a silver layer onto the surface, minimizing the space and costs required to protect devices.

This strategy and similar efforts could also be ideal for engineers who want to safeguard delicate electronics without adding weight. Many consumers perceive lightweight, tiny devices as more innovative than heavier, larger ones. Electrospray caters to these devices while meeting modern manufacturing requirements.

Take project-specific approaches

In addition to following these tips, electronics designers must always engage with their clients throughout their work. Such engagements allow engineering professionals to understand specific needs and identify the most effective ways to achieve successful outcomes.

What worked well in one case may be less suitable for others that seem similar. However, client feedback ensures everyone is on the same page.

Ellie Gabel is a freelance writer as well as associate editor at Revolutionized.

 

 

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The post How shielding protects electronic designs from EMI/RFI disruptions appeared first on EDN.

Not sure if this is the right subreddit but I think you'd like this.

Reddit:Electronics - Sun, 02/09/2025 - 02:51
Not sure if this is the right subreddit but I think you'd like this.

Spent a couple hours today getting the silicon die out from one of these epoxied on chips. Using a small alcohol lamp. Sadly, I got some of the super glue I was using to mount it to a slide on it.

submitted by /u/holllow_world
[link] [comments]

Weekly discussion, complaint, and rant thread

Reddit:Electronics - Sat, 02/08/2025 - 18:00

Open to anything, including discussions, complaints, and rants.

Sub rules do not apply, so don't bother reporting incivility, off-topic, or spam.

Reddit-wide rules do apply.

To see the newest posts, sort the comments by "new" (instead of "best" or "top").

submitted by /u/AutoModerator
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Inside a 7 pin Micro USB connector from Samsung devices (+ pinout)

Reddit:Electronics - Sat, 02/08/2025 - 17:26
Inside a 7 pin Micro USB connector from Samsung devices (+ pinout)

I was interested to know why a usually 5pin connector plugged to a 5 wires cable had 7 pins. So I took an old connector and opened it up !

I discovered that it was a standard 5 pin connector with 2 unused pins that I labelled "Shield". You can see on picture 4 that when connected to any standard cable, the "shield" pins are just unused and don't connect to anything.

Knowing this, It will be quite easier to repair Samsung devices (where I found this kind of connector mostly) : this is almost 100% compatible (except the anchor points) and a standard generic 5 pin microUSB does the same job really well. Maybe less sturdy but still functional.

This was a quite nice discovery for me ! I just wanted to share, since I didn't find a lot of talk about 7 pin microUSB connectors on the Internet

submitted by /u/FrenchBelgianFries
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