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Content posted in September 2016
P Channel and N Channel MOSFETs in Switched Mode Power Supply Applications
Scott Deuty  
9/30/2016   Post a comment
MOSFETs have been the chosen transistor technology in most Switched Mode Power Supplies (SMPS) since the mid 1980’s. MOSFETs are used as the main switching transistor as well as to improve efficiency when used as gated rectifiers. In order to choose the best switch for power application this blog provides a comparison of P Channel and N Channel enhancement mode MOSFETs.
Sound Mixing Boards; Digital versus Analog for Live Music Shows
Scott Deuty  
9/27/2016   8 comments
For most of the summer and the month of September, I have been observing and interviewing sound guys (“engineers”) and bands regarding the comparison of analog and digital sound boards. In this blog I present my findings.
US Federal regulators give a boost to autonomous vehicles
Steve Taranovich  
9/26/2016   Post a comment
Autonomous vehicles have received some bad press recently with some accidents and deaths that looked like the technology might be set back. Even some interested parties like Apple have gotten skittish about their development efforts. But take heart and read on.
Improving broadband efficiency with next-generation power supplies
Dean Tryon  
9/26/2016   Post a comment
Broadband has quickly gained popularity since its inception, and now more than 800 million people worldwide use it to connect to the internet.
Getting closer to the electronic nose, via a 250-GHz route
Analog Angle  
9/26/2016   Post a comment
We are a long way from the versatile nose of a bloodhound, but ultrahigh-GHz CMOS ICs are offering a focused gas-measurement opportunity.
Measuring LDO Power Supply Rejection Ratio for a Novice
Jonathan Harris  
9/25/2016   2 comments
As somewhat of a continuation of my last blog topic I am once again returning to measurement of an LDO parameter as I look at the power supply rejection ratio (PSRR) of this device
The STEM shortage: real or not?
Analog Angle  
9/24/2016   1 comment
We hear a lot about this "crisis," but whether it exists and, if so, to what extent, may be an unanswerable question.
"Free" DCR Current Sensing Must Die
Ken Coffman  
9/23/2016   Post a comment
A popular ‘free’ method in a buck converter is DCR current sensing. It’s free in the sense that no added cost or power loss is added to the design, but these circuits are notoriously inaccurate, particularly when small, low-ESR inductors are used.
Night Flash and Other Sources of Creativity
Scott Deuty  
9/23/2016   3 comments
Night flash is that moment when your dream is so intense that you wake up from it. In particular, this blog will focus on the creative moments of night flash as well as other venues of creativity.
The Internet began with equations
Steve Taranovich  
9/20/2016   8 comments
I tell the younger generation that they would never be able to search the web for answers, send a Tweet, use Facebook or look at a YouTube video without mathematical equations and Leonard Kleinrock, the Father of the Internet.
Goodbye VCR, We'll Miss What You Did for Us
Analog Angle  
9/20/2016   3 comments
It's formal end-of-life for this astounding consumer product, whose social impact is acknowledged while the amazing engineering feat it embodies is usually glossed over.
What happened to my TV sound-only radio?
Steve Taranovich  
9/20/2016   4 comments
Bill Schweber laments another lost treasure
Six tech discoveries by Nikola Tesla that few people know about
Steve Taranovich  
9/19/2016   Post a comment
Nikola Tesla little-known achievements
Common Sense for Current Sensing
Steve Taranovich  
9/15/2016   3 comments
I need to measure a current but I don’t know which amplifier to use. Where do I start?
Signal Chain Basics #116: Combining signals for better performance
Signal Chain Basics  
9/13/2016   2 comments
When the phase noise performance is just not good enough, one possibility is to combine two or more signals that are in phase to generate a better phase noise signal. This concept applies to the scenario of combining two sides of a differential output to form a single-ended output or the combination of signals from two semiconductor chips of the same type and configuration.
Vaporware for the Internet of Things
Scott Elder  
9/13/2016   2 comments
For those who aren’t familiar with the term vaporware, it simply means hardware or software that is heavily promoted, but not for sale. Like any vapor, it exists only in air. This seems to be the case with narrow band Long Term Evolution (LTE) modems for the Internet of Things (IoT).
Jupiter: The IC Danger Zone, Part 2
Kristen Villemez  
9/13/2016   1 comment
This month we’ll dive into the details of Heavy Ion Radiation, which is a different kind of radiation testing. Some of these failure modes are deal-breakers, some of them are not
How Technology Is Lost: Stories from Ancient and Recent History
Dennis Feucht  
9/13/2016   19 comments
In our time of global interaction, could technology be lost by war or other social factors? Loss need not be caused by a social event but merely by environmental factors. A trend in information technology is toward increasing fragility.
Gas Discharge Tubes: Old Protection in a New Bottle--Literally
Analog Angle  
9/13/2016   Post a comment
Sometimes the "old" is more than merely "new again", but instead is the only viable solution to a challenging technical problem.
Autonomous vehicles supporting futuristic infrastructures
Garima Jain  
9/12/2016   Post a comment
The world of automotive today buzzes with three words, electric cars, car sharing or licensing and autonomous cars. It is pretty interesting to see the way the world is shaping up to accommodate these trends and how these trends are actually shaping up because of the direction in which the human civilization is headed.
Power Integrity for IoT Components
Raj Nair  
9/6/2016   2 comments
A prevailing assumption in the industry, EDA in particular, is that IoT chips are less of a challenge. Technology and IP integrated are well known. The chips are not leading edge in the fabrication processes used. Tools that met the needs of prior fabrication processes hence suffice to meet the needs of IoT chips. It is just a matter of designing to the specific application
Using Excel as a Design Aid in Lookup Tables
Aubrey Kagan  
9/6/2016   6 comments
It is no secret to my legions of followers (Hi, Mom!) that I enjoy working with Cypress’ PSoC architecture especially the PSoC4 and PSoC5 varieties. Let me state up front that this blog is far more about the usage of Excel than about the PSoC, so don’t tune out just yet. I have written quite a bit on the application of Microsoft Excel to different aspects of electronics, often, I hope, with some originality
An Enabling Technology for Power-Constrained Devices
Steve Taranovich  
9/6/2016   Post a comment
Low power is an important feature in portable, battery-operated devices in today’s technologies and as we progress towards such systems in which wearables, 5G smart phones, and energy harvesting become ubiquitous, low power will be an absolute necessity
Seemingly Simple Circuits: The TL431 Voltage Regulator, Part 3
Dennis Feucht  
9/2/2016   21 comments
Now we plunge deeper in, to look at closed-loop output resistance, derive some formulas, then calculate transconductance and output resistance from manufacturer part data.

latest blogs
The utilization of electronics in medical applications could effectively enhance the quality of life of patients and prevent many cardiovascular distresses: this is confirmed by the result of an observational study, about the CPAP device
This blog series deals with the potential of the utilization of smart electronic ICs in medical care applications; these ICs are produced by companies in the field of semiconductors such as STMicroelectronics which has a broad portfolio of ICs for medical applications
There is rising interest in alternative energy schemes and electric vehicles (EVs) which means there is a growing need in making it possible for power to flow efficiently in both directions.
The industries sector is progressively increasing utilization of IoT technology to make the industrial processes automated in a very intelligent way.
Medical care applications with electronic devices are becoming progressively more important and massively adopted.
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