Content posted in August 2015
Orion in the belly of the “Beast”
Steve Taranovich 8/25/2015 5 comments
Just as in the biblical account of the prophet Jonah in the belly of the “Great Fish”, I witnessed today in the Yuma, AZ desert, Orion in the belly of a C-17 military aircraft, poised for a test of its parachutes at 35,000 feet
NASA’s new deputy administrator: Dava Newman from MIT
Steve Taranovich 8/24/2015 1 comment
I think it is a real plus to have an experienced MIT professor as the agency’s second-in-charge. Dava Newman seems like a good technological innovator and should bring fresh new energy and ideas to NASA. As the former Apollo Program Professor of Aeronautics at MIT in Cambridge, she has expertise in multidisciplinary research that includes aerospace biomedical engineering.
Figure Of Merit Based Selection Criteria Is Not Always the Best Choice
Brandt Braswell 8/24/2015 Post a comment
The fact that you’re reading this has sparked interest and I am sure you are wondering what this means or you have picked a position to either defend your beliefs or want a different opinion. So, let me say that this topic and what I say applies to choices of circuit blocks and or architectures for many different applications from analog to digital.
Space Center Houston slideshow: STEM on steroids
Steve Taranovich 8/23/2015 Post a comment
I had the pleasure of visiting the Space Center after a visit to NASA Johnson Space Center for a behind-the-scenes view of Orion and the talented team at NASA behind the Deep Space endeavor. NASA is right next door to the Space Center Houston and fully supports their educational mission with loaner exhibits and technical support.
Developing Prototype Circuits from Home: Part 1, Introduction
Scott Deuty 8/16/2015 7 comments
The internet has made circuit development from home easier than ever before. This benefits engineers in a huge way by offering a venue for them to turn their ideas into physical working reality. Regardless of whether you are independent or employed by a company, there are many advantages to developing a prototype on your own.
Voltage References Can Bite You, Too
Steve Taranovich 8/5/2015 5 comments
There are three common unkindnesses which can cause your problem. Insufficient headroom, incorrect loading, and reversed output current. The first two are usually mentioned on the data sheet and should be easy to avoid, but the third is rarely mentioned and causes problems which may be hard to diagnose.
Structural Versus Behavioral Device Models
Dennis Feucht 8/4/2015 Post a comment
Newly-discovered physical principles are often the driving cause for the invention of new kinds of devices such as the transistor. It is one of the highlights in the history of electronics, and illustrates how device models develop in engineering and why they are often a key to technological advancement.
There’s a further cool thing you can do with a spreadsheet that most SPICEs can’t. That’s to use the spreadsheet ‘solver’ functionality to adjust component values in the search for a better-fitting circuit – or even to find a set of component values for a circuit you can’t otherwise design.
Infineon MOSFETs have been embedded into PC boards by Schweizer Electronic AG
You now need to adjust component values to achieve some system goal, such as predefined frequency response or time behaviour, and there’s no closed method for working out those values.
As a member of the electronics design community, I am angry and disappointed with the recent deaths of 346 people due to the Boeing MAX 8 design
The theoretical advantages of GaN-based power transistors are now being realized in mainstream system designs. Power supplies for data centers and telecom switching racks are two application areas where GaN transistors show significant improvement in comparison to systems using best-in-class Silicon-based Superjunction devices.