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Teardowns

LED bulbs then and now: Teardown of the EcoSmart, Feit, and Sylvania 60-W equivalent LED bulbs

June 14, 2019 By Lee Teschler Leave a Comment

Compared to the LED bulbs of only a few years ago, modern-day versions are simpler and assembled via more automated methods. Leland Teschler, Executive Editor If you tore down an LED bulb manufactured a few years ago you’d likely find evidence of hand soldering a bit of kludgy design practices. We found both these practices […]

Filed Under: Power Electronic Tips, Teardowns, Video Tagged With: Anwellsemiconductor, Brightpower, ecosmart, feit, nxp, sylvania

Teardown: Simple approach characterizes modern LED bulbs

April 24, 2019 By Lee Teschler Leave a Comment

LED bulbs we examined are often simpler than those made four years ago, sometimes employing discrete transistors to handle tasks once done via chips. Leland Teschler, Executive Editor Back in 2015, we examined LED bulbs putting out the equivalent of 60-W incandescent bulbs. We recently obtained several new LED bulbs to see how things have […]

Filed Under: Featured, Power Electronic Tips, Teardowns, Video Tagged With: FAQ, philips, sylvania

Teardown: Rexing V1 dash cam

January 15, 2019 By Lee Teschler Leave a Comment

The Rexing V1 is a simple wedge-shaped dash camera that films in a 1080-line progressive scanning format. The lens is made of six glass layers and is fish-eyed to capture a 170° view of whatever it sees. There’s also a built-in vibration sensor, called a G-sensor in the promotional literature, that automatically locks any files […]

Filed Under: Featured, Microcontroller Tips, Teardowns Tagged With: macronix, nanyatechnology, novatek, renesaselectronicscorporation

Teardown: Inside bouncing LED balls

December 5, 2018 By Lee Teschler Leave a Comment

We cut one of these balls apart so you needn’t destroy yours to get a look at its internals. If you’ve ever attended a trade show, you might have seen a booth give-away item that consisted of a see-through bouncing ball with a flashing LED or two inside and sometimes a noise maker. When you […]

Filed Under: Featured, Microcontroller Tips, Teardowns Tagged With: FAQ

Teardown: Inside the PlayStation 4 game box

September 25, 2018 By Lee Teschler Leave a Comment

We take a look at the venerable Sony game box with an eye toward power handling and architecture. Chances are that if you’re a gamer, you’re experiencing your video games on a Sony PlayStation 4. To date, over 75 million PlayStation 4 boxes have sold. The closest competitor is the Xbox One (36.03 million) and […]

Filed Under: Featured, Microcontroller Tips, Teardowns Tagged With: FAQ, infineon, macronix, Marvell, onsemiconductor, renesaselectronicscorporation, samsung, siliconix, Skyworks, sony, STMicroelectronics, teardown, vishay, winbond

Teardown: Anki Cozmo, distant relative of Vector

August 10, 2018 By Lee Teschler Leave a Comment

cosmo

Cozmo is a palm-sized robot from San Francisco-based Anki, the same company that makes an intelligent racing robot system called Overdrive that we’ve torn down previously. Cozmo is actually an earlier version of an Anki robot called Vector. Vector has more capabilities in the area of artificial intelligence, thanks to its use of a processor […]

Filed Under: Featured, Microcontroller Tips, Microcontrollers, Teardowns Tagged With: anki, espressifsystems, nordicsemiconductor, nxp, winbond

Teardown: Inside the Neurometrix Quell TENS device

June 11, 2018 By Lee Teschler 1 Comment

A TENS device for transcutaneous electrical nerve stimulation wraps around the upper calf much like a wristwatch wraps around the wrist. Here are some of its operational secrets. A medical device called a Quell performs what’s called transcutaneous electrical nerve stimulation on the lower leg. This technique is said to relieve diabetic pain. None of […]

Filed Under: Featured, Microcontroller Tips, Teardowns Tagged With: maxim, neurometrix, onsemiconductor, siliconlabs, texasinstrumentsinc

Video Teardown: HOME Ever Inc. E27 A19 60-W equivalent LED bulb

May 31, 2018 By Aimee Kalnoskas Leave a Comment

E27 A19 60-W equivalent LED bulb

As part of a continuing series where we take perfectly good LED bulbs and turn them into junk, Design World Executive Editor Lee Teschler and Associate Editor Michelle DiFrangia analyze the circuitry and design techniques used in a 60-W equivalent bulb from HOME Ever Inc., a Chinese manufacturer. There are big differences in this bulb […]

Filed Under: Featured, Teardowns Tagged With: homeinc, teardown

Teardown: Leviton ground fault circuit interrupter

February 26, 2018 By Lee Teschler Leave a Comment

Leviton ground fault circuit interrupter

GFCIs detect hazardous current paths to ground and ground-to-neutral faults. A teardown reveals they are relatively simple but have circuit details that can be tricky to figure out. Bathrooms, kitchens, and other rooms with access to water are required to employ ac outlets with ground-fault circuit protection. GFCIs disconnect the output if they sense a […]

Filed Under: Featured, Power Electronic Tips, Teardowns Tagged With: leviton, nxp, onsemiconductor

Teardown: Inside the TP-Link Archer C7 wireless router

February 21, 2018 By Lee Teschler 1 Comment

Here is what the architecture of modern-day dual-speed Ethernet/Wi-Fi router looks like these days. TP-Link’s Archer C7 dual-speed wireless router delivers 1,300 Mbps over the 5 GHz band and 450 Mbps over the 2.4 GHz band. That should be enough bandwidth for HD streaming, online gaming and other bandwidth-intensive tasks. The idea behind using two […]

Filed Under: Applications, Featured, Microcontroller Tips, Teardowns, Wireless Tagged With: qualcomm, Skyworks, spansion, teardown

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