Piezo Sounder driver with self-excitation to extend run time of security alarm devices

Piezo Sounder driver with self-excitation to extend run time of security alarm devices

Diodes Incorporated has introduced their new Piezo Sounder Driver IC PAM8906, with Self-excitation and increased sound pressure level (SPL). It features an integrated synchronous boost converter and can be operated either with external pulse-width modulation (PWM) input or in self-excitation mode. This provides greater application flexibility and allows support for an increased variety of sounders.

Staff Wed, 03/15/2023 - 14:06
Circuit Digest 15 Mar 09:36

Kia's EV9 electric SUV features three rows of seats and a striking design

Kia is giving us our first look at the interior and exterior of its striking mid-size EV9 SUV, while saving key specs like the battery size and powertrain for the official debut early next month. The market-ready version hews closely to the original EV9 concept we first saw in November 2021, albeit with the blockiness toned down. Still, much like the EV6, it's a dramatic and interesting design.

The upcoming model has triangular windows in the rear quarter panel much like the EV6, but otherwise appears to draw inspiration from boxy SUVs like older Range Rovers. Kia said it's "formed from a polygonal design language" that uses "triangular fender structures and highly pronounced geometric wheel arches combine with the fuselage body." Despite all the lines and edges, though, Kia says the EV9 is still highly aerodynamic.  

Kia

It offers three rows of seats and thus becomes one of the first EVs to slot into the popular mid-size SUV category. That means it'll be taking on ICE vehicles like Kia's own Telluride, the Toyota Highlander, Ford Explorer and other models. The boxiness and squared off rear end means it should offer good headroom.

One fun touch is that the middle row uses swivelling captain's chairs, so they can flip around to face the rear seats, Orient Express-style. It'll be sold in 6- and 7-passenger configurations, depending on whether the rear seats are buckets or a bench.

Kia

Up front, Kia has ditched the concept's massive wraparound display in favor of two 12.3-inch screens for the gauge cluster and infotainment system. The number of physical buttons has been reduced and touch-sensitive dash controls added. The interior uses mesh and other materials designed to further boost the feeling of spaciousness.

Other details including infotainment system features are being kept under wraps until the vehicle's official reveal in early April. We do know that it will be built using the EV6's E-GMP platform, but Kia has yet to say anything about the EV9's power, battery size, range and price. With the EV6 starting at $45,000 or so, the EV9 is likely to be considerably north of that — but as we've seen with Kia, it's likely to be affordable for its category. 

Kia

This article originally appeared on Engadget at https://www.engadget.com/kias-ev9-electric-suv-features-three-rows-of-seats-and-a-striking-design-070933286.html?src=rss

Volkswagen vows to invest $193 billion in electrification

Volkswagen pinned its future on electric vehicles and announced its plans to put 30 new EVs on the road shortly after its $18.2 billion emissions scandal. Now, the automaker has revealed that it plans to spend $193 billion on different areas of its electrification efforts over the next five years. According to The New York Times, Volkswagen chief executive Oliver Blume said at a press event that two-thirds of that budget will go towards manufacturing batteries, developing software and sourcing critical and raw materials for its vehicles. 

Blume's revelation comes after the automaker's announcements that its subsidiary PowerCo will build its first North American battery cell factory in Canada and that it will build electric pickups and SUVs in South Carolina. The company is already producing its ID.4 electric vehicles in the US after repurposing its Chattanooga, Tennessee factory in 2022. But Volkswagen's electrification efforts are still behind its biggest competitors', and it's aiming to establish a stronger foothold in North America, as well to become more competitive in China. The company considers those regions as its two most important markets — ones it will have to conquer if it wants to reach its goals. Volkswagen previously said that it wants electric vehicles to account for about 55 percent of its sales in the US by 2030. 

For now, the automaker will continue making gas vehicles while it's working to expand its EV offerings with more models, including affordable ones that cost around $26,000. Arno Antlitz, Volkswagen’s chief financial and operating officer, talked about the path the company has to take going forward, though: "We must transform ourselves into a technology and mobility services group. We need to focus on our platforms, such as our hardware for battery-powered electric vehicles, a unified software stack, batteries, mobility, autonomous driving."

This article originally appeared on Engadget at https://www.engadget.com/volkswagen-invest-193-billion-electrification-053333309.html?src=rss

The JWST captures a rare star about to go nova

NASA has shared an image from the James Webb Space Telescope that could help astronomers one day answer longstanding questions about our universe. The capture you see above shows WR 124, a star located in the constellation Sagittarius, approximately 15,000 light years away from Earth. When the JWST first sighted WR 124 in June 2022, it captured the star undergoing a Wolf-Rayet phase. According to NASA, only some massive stars go through such a transition before they eventually explode. Those that do are among the largest and most luminous celestial bodies in the night sky. In the case of WR 124, NASA estimates the star is 30 times the mass of the Sun and has so far shed about 10 Suns worth of material. Over time, the gas Wolf-Rayet stars expel will cool and form cosmic dust.

There is beauty in transience. 🌸

Webb’s stunning image of a super bright, massive Wolf-Rayet star calls forth the ephemeral nature of cherry blossoms. The Wolf-Rayet phase is a fleeting stage that only some stars go through, soon before they explode: https://t.co/ZOAmKgtshIpic.twitter.com/fC0tL24iUe

— NASA Webb Telescope (@NASAWebb) March 14, 2023

Cosmic dust is something astronomers are keen to study for a few reasons. The material is an essential building block of the universe. As NASA notes, it shelters coalescing stars and can even come together to form planets. At the moment, however, there’s no theory that explains the amount of cosmic dust there is in the universe. The JWST could help astronomers tackle that mystery. “Before Webb, dust-loving astronomers simply did not have enough detailed information to explore questions of dust production in environments like WR 124, and whether the dust grains were large and bountiful enough to survive the supernova and become a significant contribution to the overall dust budget,” NASA said. “Now those questions can be investigated with real data.”

This article originally appeared on Engadget at https://www.engadget.com/the-jwst-captures-a-rare-star-about-to-go-nova-220013676.html?src=rss

US government opens $2.5 biilion in funding for community EV chargers

The Biden administration just made good on one of its promises to make EV charger funding available to local governments. The Department of Transportation is now accepting applications for its $2.5 billion Charging and Fueling Infrastructure Discretionary Grant Program, which will hand out funds to cities, counties, regional governments and tribes to help deploy EV chargers, hydrogen fuel stations and other reduced-emissions systems near their residents.

Half of the program's funding will go to chargers and stations in "publicly accessible" places like parking facilities, parks and schools. The rest will install this equipment in "alternative fuel corridors" along highways to help with long-distance travel. The initial round of funding will make $700 million available, with the rest coming over the program's five-year span. Officials have to apply no later than May 30th.

The initiative is part of President Biden's broader campaign to build 500,000 charging stations by 2030, or about five times as many as there were in early 2022. The money, assigned as part of the Bipartisan Infrastructure Law, is meant to ensure charging access within 50 miles of someone's location in all 50 states, the District of Columbia and Puerto Rico. While the effort is intended to spur overall EV adoption, there's an added focus on underserved communities like some urban and rural areas.

A strong charging infrastructure is widely considered vital to successfully transitioning away from combustion engine cars. Existing stations can sometimes be crowded or unreliable, and don't always support the fast charging available with recent EVs. The government funding isn't guaranteed to fix these problems, but should increase the likelihood that you can travel cross-country in an electrified ride.

This article originally appeared on Engadget at https://www.engadget.com/us-government-opens-25-biilion-in-funding-for-community-ev-chargers-213048515.html?src=rss

US government opens $2.5 billion in funding for community EV chargers

The Biden administration just made good on one of its promises to make EV charger funding available to local governments. The Department of Transportation is now accepting applications for its $2.5 billion Charging and Fueling Infrastructure Discretionary Grant Program, which will hand out funds to cities, counties, regional governments and tribes to help deploy EV chargers, hydrogen fuel stations and other reduced-emissions systems near their residents.

Half of the program's funding will go to chargers and stations in "publicly accessible" places like parking facilities, parks and schools. The rest will install this equipment in "alternative fuel corridors" along highways to help with long-distance travel. The initial round of funding will make $700 million available, with the rest coming over the program's five-year span. Officials have to apply no later than May 30th.

The initiative is part of President Biden's broader campaign to build 500,000 charging stations by 2030, or about five times as many as there were in early 2022. The money, assigned as part of the Bipartisan Infrastructure Law, is meant to ensure charging access within 50 miles of someone's location in all 50 states, the District of Columbia and Puerto Rico. While the effort is intended to spur overall EV adoption, there's an added focus on underserved communities like some urban and rural areas.

A strong charging infrastructure is widely considered vital to successfully transitioning away from combustion engine cars. Existing stations can sometimes be crowded or unreliable, and don't always support the fast charging available with recent EVs. The government funding isn't guaranteed to fix these problems, but should increase the likelihood that you can travel cross-country in an electrified ride.

This article originally appeared on Engadget at https://www.engadget.com/us-government-opens-25-billion-in-funding-for-community-ev-chargers-213048517.html?src=rss

Reddit suffers ‘major outage’ due to internal systems issue

If you’re having trouble accessing Reddit, it isn’t just you. The platform is experiencing an outage that has already lasted more than 90 minutes at the time of publication. Reddit lists desktop and mobile web access as offline amid a “major outage,” while the native mobile app has a “partial outage.” In addition, it doesn’t appear to load on the web or the Reddit mobile app.

Reddit’s system status page listed the service as “Investigating” at 3:12 PM EDT on Tuesday, saying, “Reddit is currently offline. We're working to identify the issue.” At 3:56 PM, the status was updated to “Identified,” with the note, “We've identified an internal systems issue and are working to determine a fix.” Additionally, third-party site DownDetector showed a massive spike in reported problems at around 2:50 PM.

Developing…

This article originally appeared on Engadget at https://www.engadget.com/reddit-suffers-major-outage-due-to-internal-systems-issue-210532449.html?src=rss

The 1TB Samsung T7 portable SSD drops to a record low of $80

You can never have too much digital storage space, so it's always a smart move to pick up the best SSDs whenever they're on sale and you have the cash to spare. The Samsung T7 is our current pick for the best portable SSD around, and the 1TB variant has dropped to its lowest price to date. You can pick it up now from Amazon for $80. It typically retails for $140.

The T7 has fairly fast sequential read speeds of up to 1,050MB/s. It's available in three colors: blue, black and red. If you have a little more flexibility, you might be interested in picking up a 2TB version of the T7 instead. It's up to 50 percent off, depending on the color. The red variant has dropped to $135.

If you're in the market for a microSD card but don't necessarily need a ton of storage for your particular device, it's worth considering the Samsung's 128GB EVO Select card. That has also dropped to a record low of just $12.49. It usually costs $20. Bear in mind that you won't need a faster card than this for your Nintendo Switch or Steam Deck — those devices only support read speeds of up to 104MB/s.

Meanwhile, several other Samsung storage options went on sale last month and most of those deals are still live. The T7 Shield, a more rugged version of the T7, is $90 for the 1TB version (2TB and 4TB versions are on sale too). As for the 980 Pro with a built-in heatsink, which is one of the best PS5 SSDs on the market, that's available for $120 for 1TB of storage — almost half off the usual price.

Follow @EngadgetDeals on Twitter and subscribe to the Engadget Deals newsletter for the latest tech deals and buying advice.

This article originally appeared on Engadget at https://www.engadget.com/the-1tb-samsung-t7-portable-ssd-drops-to-a-record-low-of-80-200030027.html?src=rss

Google's Pixel 8 Pro may look like a rounded Pixel 7

Google hasn't even announced the Pixel 7a, but that isn't stopping leakers from claiming to know something about the Pixel 8 series. OnLeaks and Smartprix have shared what they say are renders of the Pixel 8 Pro design. At first glance, it appears to be a subtle evolution of the Pixel 7 Pro. The corners are more rounded to avoid digging into your palm, and the three-lens rear camera array (main, ultra-wide and telephoto) is now grouped into one cutout.

There may be a conspicuous functional improvement, though. That rear array also seems to include an unknown sensor below the flash. OnLeaks and Smartprix speculate that it may be a depth or macro sensor, but we wouldn't rule out LiDAR or other technology to improve augmented reality, portraits and low-light photos.

Many of the details of the Pixel 8 family remain a mystery. However, previously unearthed clues suggest there may be some camera upgrades in store. In December, Kuba Wojciechowski discovered code hinting the new phones may use staggered HDR, or a technique that captures multiple exposures at once. You could get an expanded dynamic range without long capture times that can blur subjects. The Pixel 8 line is also likely to use a third-generation Tensor chip that may improve performance and efficiency.

If Google repeats last year's preview for the Pixel 7, you might get a brief glimpse of the Pixel 8 line at I/O on May 10th ahead of a launch in the early fall. We'd likewise expect the new models to ship with Android 14. This may be a predictable update if the rumors are accurate, but you might not mind given the strong reception of Google's recent Pixel releases.

This article originally appeared on Engadget at https://www.engadget.com/googles-pixel-8-may-look-like-a-rounded-pixel-7-194230413.html?src=rss

Anthropic's Claude AI is guided by 10 secret foundational pillars of fairness

Despite their ability to crank out incredibly lifelike prose, generative AIs like Google's Bard or OpenAI's ChatGPT (powered by GPT-4), have already shown the current limitations of gen-AI technology as well as their own tenuous grasp of the facts — arguing that the JWST was the first telescope to image an exoplanet, and that Elvis' dad was an actor. But with this much market share at stake, what are a few misquoted facts against getting their product into the hands of consumers as quickly as possible? 

The team over at Anthropic, conversely, is made up largely of ex-OpenAI folks and they've taken a more pragmatic approach to the development of their own chatbot, Claude. The result is an AI that is "more steerable" and “much less likely to produce harmful outputs,” than ChatGPT, per a report from TechCrunch.

Claude has been in closed beta development since late 2022, but has recently begun testing the AI's conversational capabilities with launch partners including Robin AI, Quora and privacy-centered search engine, Duck Duck Go. The company has not released pricing yet but has confirmed to TC that two versions will be available at launch: the standard API and a faster, lightweight iteration they've dubbed Claude Instant.

“We use Claude to evaluate particular parts of a contract, and to suggest new, alternative language that’s more friendly to our customers,” Robin CEO Richard Robinson told TechCrunch. “We’ve found Claude is really good at understanding language — including in technical domains like legal language. It’s also very confident at drafting, summarizing, translations and explaining complex concepts in simple terms.”

Anthropic believes that Claude will be less likely to go rogue and start spitting racist obscenities like Tay did, in part, due to the AI's specialized training regimen that eh company is calling "constitutional AI." The company asserts that this provides a “principle-based” approach towards getting humans and robots on the same ethical page. Anthropic started with 10 foundational principles — though the company won't disclose what they are, specifically, which is 11-secret-herbs-and-spices of weird marketing stunt — suffice to say that, "they’re grounded in the concepts of beneficence, nonmaleficence and autonomy," per TC

The company then trained a separate AI to reliably generate text in accordance to those semi-secret principles by responding to myriad writing prompts like “compose a poem in the style of John Keats.” That model then trained Claude. But just because it is trained to be fundamentally less problematic than its competition doesn't mean Claude doesn't hallucinate facts like a startup CEO on an ayahuasca retreat. The AI has already invented a whole new chemical and taken artistic license to the uranium enrichment process; it has reportedly scored lower than ChatGPT on standardized tests for both math and grammar as well.

“The challenge is making models that both never hallucinate but are still useful — you can get into a tough situation where the model figures a good way to never lie is to never say anything at all, so there’s a tradeoff there that we’re working on,” the Anthropic spokesperson told TC. “We’ve also made progress on reducing hallucinations, but there is more to do."  

This article originally appeared on Engadget at https://www.engadget.com/anthropics-claude-ai-is-guided-by-10-secret-foundational-pillars-of-fairness-193058471.html?src=rss