Microelectronics world news

Recyclekaro, a leading e-waste and lithium-ion battery recycling company, is proud to announce its registration on the government’s Extended Producer Responsibility (EPR) portal for e-waste recycling. As a lithium-ion battery recycling industry leader, Recyclekaro joins Lohum Cleantech, Attero, and LICO Materials as one of the four registered lithium-ion battery recyclers, reinforcing its commitment to sustainable e-waste management. Based on its existing recycling capacity, Recyclekaro will help lithium-ion battery and electronics product manufacturers, producers, and importers in India meet their EPR targets. These targets include 4,200 MT for lithium-ion battery recycling and 15,000 MT for e-waste recycling, ensuring comprehensive support for sustainability goals.

India is the third-largest e-waste producer globally, generating 1.71 million metric tons annually, with only approximately 40% of e-waste recycled in the last financial year. To address this challenge, the EPR portal, an initiative by the Central Pollution Control Board (CPCB), provides a transparent and accountable framework for electronic waste management in India. It centralizes the tracking of e-waste from production to disposal, connecting manufacturers with registered recyclers like Recyclekaro and streamlining collection and recycling processes. The system offers financial incentives through EPR credits, making recycling economically viable and supporting companies in meeting sustainability targets. Additionally, the platform ensures regulatory compliance, improves data collection and reporting, and encourages innovation in recycling technologies, fostering a more sustainable approach to e-waste management in India.

The Battery Waste Management (BWM) Rules, 2022, notified by the Ministry of Environment, Forest and Climate Change, apply to all types of batteries. These rules mandate that producers (manufacturers, importers) meet collection and recycling targets to fulfil Extended Producer Responsibility (EPR) obligations. Producers, recyclers, and refurbishers must register through the online portal developed by the CPCB, which enhances accountability, traceability, and transparency in meeting EPR obligations.

Rajesh Gupta, Founder & Director of Recyclekaro, commented, “Registering on the government’s EPR portal not only allows us to connect directly with manufacturers, fulfilling their waste management responsibilities, but also significantly enhances our business opportunities. Being among the four registered recyclers for lithium-ion battery end to end recycling is a major milestone and a recognition that showcases our credibility. This registration strengthens our position in the industry and supports our mission to promote sustainable and responsible recycling practices.”

Recyclekaro has established a strong presence in the Indian recycling industry, achieving 90% metal extraction efficiency with purity levels exceeding 99% from scrap batteries. The company plans to double its recycling capacity by the second quarter of FY 2024-25.

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Development board combination with 50W transmitter and receiver simplifies fast charging utilizing ST Super Charge protocol

STMicroelectronics has introduced a 50W, Qi-compatible transmitter and receiver combination to accelerate the development of wireless charging for high-power applications such as medical and industrial equipment, home appliances, and computer peripherals.

Using ST’s new wireless charging solution, innovators can leverage the convenience and speed of wireless charging in applications that demand a higher power and shorter charging interval. These applications include vacuum cleaners, cordless power tools, drones and other mobile robots, medical drug delivery devices, portable ultrasound systems, stage lighting and mobile lighting, printers, and scanners. Free from cables, connectors, and complex docking arrangements, these products can become simpler, more affordable, and more robust.

The STEVAL-WBC2TX50 transmitter board is capable of delivering up to 50W of output power using the ST Super Charge (STSC) protocol. STSC is ST’s proprietary protocol for wireless charging at a faster rate than the standard protocols used with smartphones and similar devices, allowing quicker recharging of larger batteries. The board also supports the Qi 1.3 5W Baseline Power Profile (BPP) and 15W Extended Power Profile (EPP). The main component on board is ST’s STWBC2-HP transmitter system-in-package, which combines an STM32G071 Arm Cortex-M0 microcontroller and an application-specific front end. The front end provides signal conditioning and frequency control, a high-resolution PWM generator to drive the transmitter, and operates with any DC voltage from 4.1V to 24V. It also contains MOSFET gate drivers and a D+/D- interface for USB Power Delivery. In addition, the STWBC2-HP SiP can work with ST’s STSAFE-A110 secure element to provide Qi authentication.

The STEVAL-WLC98RX receiver board is built to handle up to 50W charging power, to safely accommodate the full STSC capability as well as BPP and EPP charging. Features include support for Adaptive Rectifier Configuration (ARC), which extends charging distance by up to 50% to allow lower-cost coils and more flexible configurations. Accurate voltage and current measurements for Foreign Object Detection (FOD), thermal management, and system protection are also provided. This board uses ST’s STWLC98 wireless power receiver IC, which contains a Cortex-M3 core and an integrated high-efficiency synchronous-rectifier power stage with programmable output voltage of up to 20V.

Dedicated software tools, ST’s STSW-WPSTUDIO for the STEVAL-WLC98RX and STSW-WBC2STUDIO for the STEVAL-WBC2TX50 are available to modify the configuration parameters, tailoring the operation of the device to the needs of customized applications. A comprehensive set of design documents is also available to assist development.

The boards come with a Declaration of Conformity to the EU Radio Equipment Directive (RED) and are available from the ST eStore and from distributors. Pricing starts at $113.93 for the STEVAL-WLC98RX receiver and $109.03 for the STEVAL-WBC2TX50 transmitter.

For further information please visit www.st.com/wirelesspower.

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It can be more desirable to buy a second-hand PS4 for many players, and for good reasons, it appears. Evidently, one advantage is that you can play more using the pre-owned Console since these consoles are cheaper than new ones in the market. Also, a used PS4 set likely comes with other accessories or games, sometimes in a bundle, or may contain an extra controller, all of which add to the increase in worth. It has been suggested that you consider using Gadgetpickup since they offer well-documented, well-used, second-hand products. If you are looking for a particular model, there would be no confusion about what you are actually getting. It may be entertaining to purchase the first online released PS4 models, the discontinued models, or today’s new PS4 Pro model as they might be endowed with certain unique features or looks.

Assessing the Condition of a Used PS4

That being said, here are some ways or places that you may consider going to find a good deal and buy a used PS4. Online retail companies such as eBay and Amazon exist, offering various services from different merchants. Most of these platforms admit buyer protection measures, meaning that you are shielded when making a purchase. The gaming stores in local markets are also ideal, with common features of the factor being that they resell pre-owned consoles that they evaluate and restore. Other sources that can be of use are open online communities such as special boards on forums and social networks where people who, for example, want to buy or sell my PS4 console can be found.

Understanding Pricing

When buying a second-hand PS4, it is recommended to pay attention to a few critical characteristics to get the most out of the purchasing decision:

• Consider the exterior of the Console to check for scratches and other signs of imperfections, such as dents or pressing. Examining each of the ports and connectors to ensure that they are fully connected and functional can easily prevent some common threats.
• The overall performance can be checked by powering up the PS4 to check how different sections work without lag or hitch. Be alert to any squeaking or squealing sounds, engine heat, or blower motor.
• Check on the controllers and other accessories and determine if they have any signs of wear or damage.

By doing this, you are likely in a better position to make a better decision and minimize the possibility of having to deal with some negatives later on.

Ensuring a Safe Purchase

When ensuring a safe purchase of a used PlayStation 4, taking several steps to protect yourself is crucial. Here’s how you can make your buying experience secure:

• Use Reputable Platforms: Always prioritize safety by choosing well-known online platforms that offer buyer protection policies. This reduces the risk of fraud and provides a safer transaction environment.
• Meet in Public Places: When meeting a seller in person, choose a public place such as a café or shopping mall. If possible, bring a friend along to further secure the transaction.
• Inspect and Test the Console: Before finalizing the purchase, thoroughly inspect and test the Console on-site. Check for any signs of wear and tear and ensure that all functions are working properly.
• Keep Records of Communications and Transactions: Maintain documentation of all interactions, from messages and emails to receipts and any agreements made with the seller. These records can prove invaluable if any issues arise later.

Checking for Game Compatibility and Accessory Inclusions

One must confirm that the second-hand PS4 has all the proper add-ons to avoid any issues later. This may include at least a single controller, tremendous copper cables, and high-definition multimedia interface (HDMI) cables. To simplify this process, consider using Gadgetpickup, which can streamline your purchase and ensure all necessary components are included.

Also, look for any extra buttons the seller might throw in, like more controllers, games, or docking stations, which are good to be part of a package deal. It will help you avoid spending extra money, which is needlessly spent when parts of the package are missing, and also give a better gaming experience from the get-go.

Setting Up Your Purchased PS4

Once you get your hands on a fairly good deal with a used PS4 console, the next thing you will be looking for is how to start using it. The first step will entail you to connect the Console to a relevant television using relevant cables. Sex: sudo power on the Console and read the instructions on the displayed screen to set up the user account. Computers tend to retain data from the previous owner; if the Console is tainted in the same manner, then a wipe should be performed to clear the entire item, which reconditions the device to its manufacturing state.

Connecting to the Internet and PlayStation Network

Continue to step four on how to connect PS4 to the internet by using Wi-Fi or an Ethernet cable connection. This connection is required to connect the system to the latest version to improve features such as memory use, control, access, and security.

After that, download any needed updates, follow them, and connect to the PlayStation Network or PSN. If you are already registered, you may proceed to login; if not, you may register for a membership. Membership is used to play games in multiplayer mode, purchase and download various items from the PlayStation store, and for other purposes available using the PSN service.

Last but not the least, it is always better to set up the Console in a way that the gamer finds convenient. This ranges from how to install the parental controls, change resolution display settings and other features that could be customized to serve the purpose of effectively playing the games.

Final Thoughts on Securing a Used PS4

To secure the best deal on a used PS4, consider the following tips: used consoles can be much cheaper and come with extra bonuses. Another way to get your Console is to purchase it from eBay, Amazon, local game stores, or through classifieds like craigslist, but you should be careful. However, the physical state of the Console, the functionalities involved, and the availability of necessary accessories should be critically assessed.

It is always advisable to perform any transaction in areas that are not secluded and ensure you use safe means of paying to avoid being con and protect your details. While shopping online, note the legalities involved, ensure the owner before buying goods and note that returns policies may differ from those of the physical stores.

The buying experience can be improved by configuring the following account settings, updating the Console, and tweaking different options. Another factor that can be considered is using convenient and secure services such as Gadgetpickup. Adhering to these guidelines will not only assist in making the right purchase but also help in maximizing the usability of your PS4.

The post Buyer’s Advantage: How to Scoring a Great Deal on a Used PS4 appeared first on Electronics Lovers ~ Technology We Love.

I’ve always been interested in simple-looking components which solve well-defined, clear, bounded problems. One carpentry example I encountered and used many years ago is formally known as a hanger bolt, Figure 1.

Figure 1 (left) The schematic of the hanger bolt shows it interfaces a wood-screw thread with a machine-screw thread; (right) the hanger bolt allows a wooden furniture element to be connected to a metal fitting. Source: Plaster and Disaster

One end has a wood-screw thread and other has a machine screw for a nut or threaded fitting. It’s the mechanical “interface” between a wooden element such as a table leg and a metal mounting bracket.

There’s even a specialized version that features a reversed (left-hand) thread on the machine-screw side, used for suspending construction wiring or metal assemblies from wood. These reverse-thread hanger bolts solve a subtle problem, where the continuous rotation of an assembly would cause a standard right-hand threaded fastener to unscrew, while a left-hand fastener would remain securely in place.

There are also clever electrical components, of course. Given the number of years I’ve been “hanging around” electronic comments, circuits, and systems, I thought I was somewhat familiar with, or at least aware of, just about all of these, especially those related to management and removal of heat. I’ve had a long affinity for heat sinks, Figure 2, as well as heat pipes (yes, I know that sounds weird). They do one thing, they do it well, they’re reliable, they don’t push back, and they don’t need software, initialization, attention, or periodic upgrades.

Figure 2 Three of the heat sinks I have collected over the years: (left) slip-on “wings” for a TO-5 can transistor; (middle) heat sink designed for the Intel Pentium II from the late 1990s; (right) a large heat sink for a power-converter module. Source: Bill Schweber

Imagine my surprise when I saw a press release (“TMJ Thermal Jumpers Help Lower Temperatures for High Power Supplies”) from Stackpole Electronics, Inc. (SEI) for a component whose name and function were new to me: the “surface-mount thermal jumper resistor”, or simply “thermal jumper”, Figure 3. The word “resistor” definitely had me confused there, so I clicked over to the data sheet (“TMJ Series Surface Mount Thermal Jumper Chip Resistor”) but found that it had all the facts related to ratings, size, and so on, but did not have the “story” on applications.

Figure 3 The thermal jumper is very plain and gives no hint as to its function. Source: Stackpole Electronics, Inc.

Next step was a quick Google search and, not surprisingly, saw several pages of links to clothing outerwear thermal jumpers designed to keep you warm in cool but not cold weather. Eventually, I reached a page of technical links when I saw this entry from another component vendor (Vishay), which stated it clearly: “a thermal jumper allows the connecting of high-power devices to heat sinks without grounding or otherwise electrically connecting the devices.”

OK, now it made sense, or at least started to do so.

The thermal jumper uses an aluminum-nitride (AIN) substrate with high thermal conductivity to provide a low (not zero) path for thermal energy (heat) to get away from its source to a nearby heat sink of some type. At the same time, it offers a high insulation resistance between its electrical terminals.

This jumper is the thermal analog to a zero-ohm resistor. As that name indicates, the zero-ohm device looks like a conventional resistor but is actually a short circuit. It’s used as a machine-insertable jumper to work around PC board-layout challenges (especially on single-sided boards), as a placeholder when a board has multiple configurations, or to obscure circuit specifics by camouflaging some details.

I still wasn’t sure about how to actually use this component, but an application video (“ThermaWick® Thermal Jumper Demo”) from Vishay showed how it functions as a tiny bridge from a resistor as heat source to a nearby PCB copper area functioning as a heat sink, Figure 4.

Figure 4 The test arrangement has a one-watt resistor without heat sinking on the left side, and an identical resistor but with thermal jumper and PC-board copper as heat sink on the right side. Source: Vishay Intertechnology

Using a Fluke thermal imager, the video showed the resistor without thermal jumper was at about 140°C while the one with the jumper and the modest heat-sink area was at 100°C, a significant 40°C difference (of course, the difference is also a function of the size the associated PCB copper acting as a heat sink).

Figure 5 The left-right temperature differential between resistor was about 40°C. Source: Vishay Intertechnology

This thermal jumper is an effective way to solve a specific class of problems). Of course, although it is simple in appearance and function, it is not. It takes engineers, production specialists, material experts, and people skilled in many other disciplines to make it happen and do so in volume production.

Have you even found a small, unassuming passive or active electrical or mechanical component that is simple and clever, and at same time solves a pesky problem? Did it “save the day” and resolve a problem that was causing you to lose sleep, to use a cliché?

Bill Schweber is an EE who has written three textbooks, hundreds of technical articles, opinion columns, and product features.

 Related Content

• My long-running affection for heat sinks
• Goodbye, thermal grease; hello, integral heat sink?
• Misconception revealed: Can a heat sink be too big?
• Call on mechanical engineers to solve your tough thermal problems
• “Thin is in” as RF-module shrinkage also enhances thermal performance
• The Zero-Ohm Resistor: A “Simple” Passive Component

 References

• Stackpole Electronics, “Using Thermal Jumpers to Solve Temperature Issues for Power Supplies, Amplifiers and Servers” (app note)
• Stackpole Electronics, “TMJ Thermal Jumpers Help Lower Temperatures for High Power Supplies” (press release)
• Stackpole Electronics, “TMJ Series Surface Mount Thermal Jumper Chip Resistor” (data sheet)
• Vishay Intertechnology, “ThermaWick® Thermal Jumper Electrically Isolated Thermal Conductor” (application brief)
• Vishay Intertechnology, “ThermaWick® Thermal Jumper Capability” (application brief)
• Vishay Intertechnology, “ThermaWick® Thermal Jumper Demo” (comparative video)

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