Teardowns

https://techcrunch.com/2017/04/24/juicero-may-be-the-absurd-avatar-of-silicon-valley-hubris-but-boy-is-it-well-engineered/?ncid=rss&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Techcrunch+%28TechCrunch%29&utm_content=FaceBook&sr_share=facebook Ben Einstein, general partner at Bolt, served up this excellent teardown of the Juicero on the company blog. If you were wondering how a juice press could possibly cost $400… well, this is how. →

This is 150W 12V DC to 230V 50 Hz AC conveter designed to be used in car. It failed few days ago when powering a laptop.  Let’s take a look what is inside. Closer look. Here is DC power input filtering.. looks as quite ugly late add-on to design.. More circuit board details. On the →

Recently, the media has been on discussion on making the country roads to be controlled by private company and Finnish cars envisaged the so-called mandatory. black box. On this discussion it has been several times mentioned that the Finnish Government has planned a mandatory monitoring devices for all cars to collect “road tax” based on →

Some time ago I built Avalanche pulse generator circuit. In that project I used a slightly odd car to “mains” adaptor device as the DC/DC converter to generate the voltage (around 100V) needed to power the avalanche circuit. Here is view of that part of Avalanche pulse generator circuit: I had bought that device that →

http://www.edn.com/design/consumer/4443249/Teardown–Drone-streams-live-video?_mc=sm_edn&hootPostID=aace25fdd6ccde81d57b00797e517d7a Look at this tiny video streaming drone teardown. →

Here are some interesting videos on professional audio and video technologies field: Mini backstage tour of the control area video takes a quick look at some of the stuff in the main control area of a big show. The next videos show what is inside some of the audio and video equipment: EEVblog #840 – →

An uninterruptible power supply (UPS) is an electrical apparatus that provides emergency power to a load when the input power source or mains power fails. The on-battery runtime of most uninterruptible power sources is relatively short (only a few minutes) but sufficient to start a standby power source or properly shut down the protected equipment. →

Big wall size video displays has been available from quite bit of time. Very many modern big displays are built using LED technologies that I covered yesterday in Big LED video display technology posting. This article covers some of the older technologies how big wall size video displays have been built. Before huge video displays →

I have used some for time Barkan PB22B 2200mah Portable Charger Black to charge my smart Samsung S4 mini phone. I had some issues first that the charging was not reliable with my phone (worked well with some other devices). I decided to look what was wrong with USB Power Current Voltage Tester, and with →

Here is teardown of another cheap USB charger bought some time ago for around two euros from some chinese online shop. Brand “Designed by Able” Model 1300. Label Circuit board Closeup of circuit board One finding is that rectifier is replaced with diode, meaning that this half-wave rectifies mains power. Other findings: – The switcher →