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circuit design - Embedded Systems
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Layout recomendations and tips for best performance against EMC
When making the layout of the circuit diagram, it is interesting to perform a preliminary analysis of several issues in order to minimize problems arising from electromagnetic compatibility.The analys...
posted by Maykel Alonso on Jan 4 2013 under Hardware Development | Tutorials | Circuit Design Comments (0) |
A very unique SIM900 design
The company SIMCOM has produced a variety of GSM/GPRS modules which are quite cheap, easy to use with a standard performance. Amongst these the SIM900 is a very interesting device, it is very similar ... 
posted by Maziar Tasbihi on Aug 11 2012 under Circuit Design | Product Design | Communications Comments (2) |
The MIC lineup of Micrel's Low Drop Out (LDO) voltage regulators
Micrel has given out a very impressive line up of voltage regulators which are defined by the MIC series. The MIC29302 device, is capable of delivering 3 amperes into a 5 volt or 3.6 volt load, with m...
posted by Maziar Tasbihi on Aug 10 2012 under Power Supply | Education | Circuit Design | Low-Voltage Design Comments (0) |
A Useful Current Profiling Method
In one of my recent projects, I had to capture the dynamic current profile of a short-range wireless embedded platform for a number of operation scenarios. Due to the dynamic nature of the cur... 
posted by Dr Cagri Tanriover on Jul 2 2012 under Circuit Design | Test Equipment | Measurement Comments (3) |
First Steps in OrCAD 16 [Capture]
Hello community, I know that in last posts I have been writting about the Software. But what about Hardware? In last months I have been dealing with it, exactly with OrCAD 16. And I will explain ...
posted by Maykel Alonso on Jun 1 2012 under Hardware Development | Circuit Design Comments (6) |
Have You Ever Seen an Ideal Op-Amp?
Somewhere, along with unicorns and the Loch Ness Monster, lies a small colony of ideal op-amps. Op-amp is short for operational amplifier, and we start our education on them by learning about these my... 
posted by Jason Sachs on Apr 30 2012 under Circuit Design | Analog Circuits Comments (0) |
Hot Fun in the Silicon: Thermal Testing with Power Semiconductors
Here's a trick that is useful the next time you do thermal testing with your MOSFETs or IGBTs. Thermal testing?! Yes, that's right. It's important to make sure your power transistors don't overheat....
posted by Jason Sachs on Apr 20 2012 under Circuit Design | Power Electronics Comments (0) |
10 More (Obscure) Circuit Components You Should Know
The interest in my previous article on obscure but useful electronics parts, "10 Circuit Components You Should Know" was encouraging enough that I thought I would write a followup. So here are another...
posted by Jason Sachs on Feb 5 2012 under Circuit Design Comments (1) |
Stairway to Thévenin
This article was inspired by a recent post on reddit asking for help on Thévenin and Norton equivalent circuits. (With apologies to Mr. Thévenin, the rest of the e's that follow will re...
posted by Jason Sachs on Dec 31 2011 under Circuit Design | Analog Circuits Comments (0) |
10 Circuit Components You Should Know
Chefs have their miscellaneous ingredients, like condensed milk, cream of tartar, and xanthan gum. As engineers, we too have quite our pick of circuits, and a good circuit designer should know what's ...
posted by Jason Sachs on Nov 27 2011 under Circuit Design Comments (1) |
Analog-to-Digital Confusion: Pitfalls of Driving an ADC
Imagine the following scenario:You're a successful engineer (sounds nice, doesn't it!) working on a project with three or four circuit boards. More than even you can handle, so you give one of...
posted by Jason Sachs on Nov 19 2011 under Circuit Design | ADC | Analog Inputs Comments (2) |
Which MOSFET topology?
A recent electronics.StackExchange question brings up a good topic for discussion. Let's say you have a power supply and a 2-wire load you want to be able to switch on and off from the power supply us...
posted by Jason Sachs on Sep 1 2011 under Tutorials | Circuit Design | Power Electronics Comments (0) |
Thermistor signal conditioning: Dos and Don'ts, Tips and Tricks
In an earlier blog entry, I mentioned this circuit for thermistor signal conditioning: It is worth a little more explanation on thermistor signal conditioning; it's something that's often don...
posted by Jason Sachs on Jun 15 2011 under Tutorials | Circuit Design | Thermistor Comments (2) |
Real-time clocks: Does anybody really know what time it is?
We recently started writing software to make use of a real-time clock IC, and found to our chagrin that the chip was missing a rather useful function, namely elapsed time in seconds since the standard...
posted by Jason Sachs on May 29 2011 under Tutorials | Circuit Design Comments (5) |
Byte and Switch (Part 2)
In part 1 we talked about the use of a MOSFET for a power switch. Here's a different circuit that also uses a MOSFET, this time as a switch for signals: We have a thermistor Rth that is located som...
posted by Jason Sachs on May 7 2011 under Tutorials | Circuit Design | Low-Voltage Design | Thermistor Comments (4) |
Byte and Switch (Part 1)
Imagine for a minute you have an electromagnet, and a microcontroller, and you want to use the microcontroller to turn the electromagnet on and off. Sounds pretty typical, right?We ask this question o...
posted by Jason Sachs on Apr 26 2011 under Tutorials | Interface Circuitry | Circuit Design Comments (4) |