Don't “Brick” My Supply! Steve Taranovich 3/20/2015 Post a comment In today’s connected world, software frequent-field updates are necessary to improve accuracy, or add on benefits or even fix bugs. If you like these updates to be invisible to you, you are going to love this idea - Instant updates that do not require your software to restart or cause any glitch in the power supply.
Do Not Operate a Four-Switch Buck-Boost Converter in Buck-Boost Mode Steve Taranovich 3/18/2015 4 comments A DC/DC converter converts an input voltage source to a desired voltage level. When the input voltage is higher than the desired output voltage, you need a buck converter. Conversely, when the input voltage is lower than the output voltage, you need a boost converter. In applications where the input voltage could be either higher or lower than the output voltage, what you need is a buck-boost converter.
Lacking Grand Answers? Look for the Best “Little” Answers Steve Taranovich 3/17/2015 1 comment Much time is spent discussing the need for more efficient use of limited energy resources, and with good reason. Energy demand continues to grow and the number of loads is predicted to climb exponentially as Internet of Things (IoT) deployment becomes real.
Seemingly Simple Circuits, Part 6: The Refined Current-Loop Converter Model Dennis Feucht 3/14/2015 4 comments In this last part of a long article, we look at the final refinement for waveform-based modeling which is based on average switching-cycle current, not on peak or valley current values within the cycle. This is significant because the current of interest to us in power supply design is the average current. Power-supply ratings are based on it.
Super-Sensitive Magnetic Sensor Exploits Diamond Defect Analog Angle 3/10/2015 1 comment The quest to measure tiny and enormous values of common physics variables continues; here, the Zeeman effect and NMR techniques are used to create a sub-picotesla magnetometer at a nitrogen-vacancy defect site in a diamond lattice.
STEM Demystifying Science and Engineering For Young Girls Steve Taranovich 3/6/2015 3 comments I am a strong believer in the STEM program for young children, but in this blog I want to address young girls in particular because the so-called “leaky” pipeline of engineering talent is seen predominantly at age 16, but typically the decision is made around age 14 or so.
India’s Potential Silicon Valley in the “Land of the Coconut”: Kerala Steve Taranovich 2/25/2015 6 comments There are 150 engineering schools in the state of Kerala with graduates leaving India for the allure of companies elsewhere in the world. The state of Kerala wants to keep these engineers right there in this region where they have graduated and is trying to create a “Silicon Valley” in India.
The Future of Custom ASICs Steve Taranovich 2/25/2015 3 comments For decades, electronics product innovation has been incremental in nature, relying largely on the next generation of semiconductors to deliver performance improvement. For almost 50 years Moore’s Law has delivered 2x performance (power or cost) improvement in semiconductors every 18 months, outpacing any product or system level innovation cycle that could be achieved by even the most ambitious hardware teams. What has evolved is a “sit & wait” approach, to product innovation. However it is now clear that Moore’s law is broken, and the implications are profound for hardware designers.
You Need a Power Supply Designed by When? Scott Deuty 2/25/2015 Post a comment You’re in a small company that needs to turn a product quick. Nobody in the company has any power supply design experience yet you need to drive LEDs from a universal (US and European) wall input voltage. What do you do?
A snow-thrower on steroids Luca Difalco 2/19/2015 7 comments With the US East Coast digging out from yet another snowstorm in a year-long march of wintry weather, even the most stalwart residents are suffering from snow overdose, leading them to wonder: WHERE ARE OUR SNO-BOTS?
Time of Flight Steve Taranovich 2/18/2015 6 comments The phrase “Time of Flight” has come up quite a few times in recent weeks. I think it is important to understand what this relates to and more importantly, what it relates to in today’s latest electronics developments.
Forget about 10 GHz—let’s aim for 100+ GHz Analog Angle 2/10/2015 5 comments Now systems are moving higher, with activity in the 5 GHz Wi-Fi band as well, due to crowding and interference issues at 2.4 GHz. Ironically, this at least partially due to the success of the cellular, Wi-Fi ad ISM initiatives at 2.4 GHz.
Delta-sigma ADC basics: How the digital filter works Precision Hub 2/10/2015 3 comments Designing with a delta-sigma analog-to-digital converter can help achieve the highest possible resolution in your system. But to maximize this architecture’s benefits, it helps to understand how the delta-sigma modulator and digital filter in the ADC combine to achieve greater measurement resolution.
Calculator or Slide Rule? Steve Taranovich 2/4/2015 5 comments In February 1972, the first relatively affordable and hand-held electronic calculator was made available, for scientists only, priced at $395. Hewlett Packard's HP-35 was the first handheld calculator to perform advanced mathematical functions.
Role Models Ken Coffman 2/4/2015 4 comments Talking about the importance of role models early in our careers.
First Superbowl Ever to be Played Under LED Lighting: A new Era in Lighting Steve Taranovich 1/28/2015 35 comments Unlike the disastrous Superbowl XLVII in 2013, when the Metal Halide stadium lights went out at an inopportune moment, Ephesus LED Sports Lighting, a US-based company that manufactures high-output LED lighting solutions for challenging applications in the industrial and sporting markets, has supplied the Stadium with high performance LED stadium lights.
The Power of the Printed Word Steve Taranovich 1/20/2015 37 comments The MIT Age Lab recently worked with Monotype Imaging in an investigation of effects of typeface on the demand of human-machine interactions during a simulated in-vehicle point-of-interest (POI) menu selection task. Their study showed that people could perform a menu selection task faster and with more accuracy depending upon the text type used as well as white text on a black background vs. the standard block text on a white background. Differences were clearly noted.
Fortunately for circuit designers, a new tool is available that can simplify the process of identifying the ESD suppression device best suited to an application, which makes it far easier to incorporate circuit protection earlier in the board planning process. The Littelfuse iDesign™ Online Simulation and Product Selection Tool
. I received a very good reader question from my last blog post regarding the various parameters that are reported by the tool. Let’s take a look at an example and explore the parameters that are returned. In this example we will look at the AD9643-250.
Managing system thermal performance is critical in today’s electronic systems if you are to maximize performance and the user experience. As systems grow more powerful, and in many cases smaller in size, managing the thermal profile has become an ever-increasing challenge. Monitoring the current provides a leading indicator to potential thermal issues.
In blog number 3, we are going to divert a little from our normal trend of evaluating power supply design and simulation tools. Instead, we are going to look into power management tools that are online.