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circuit design - Embedded Systems

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Someday We’ll Find It, The Kelvin Connection

You’d think it wouldn’t be too hard to measure electrical resistance accurately. And it’s really not, at least according to wikiHow.com: you just follow these easy steps: Choose t...

posted by Jason Sachs on Jul 28 2014 under Circuit Design | Measurement 
Comments (1) |

Lost Secrets of the H-Bridge, Part IV: DC Link Decoupling and Why Electrolytic Capacitors Are Not Enough

Those of you who read my earlier articles about H-bridges, and followed them closely, have noticed there's some unfinished business. Well, here it is. Just so you know, I've been nervous about writing...

posted by Jason Sachs on Apr 29 2014 under Tutorials | Circuit Design | Power Electronics 
Comments (7) |

How to Analyze a Differential Amplifier

There are a handful of things that you just have to know if you do any decent amount of electronic circuit design work. One of them is a voltage divider. Another is the behavior of an RC filter. I'm...

posted by Jason Sachs on Apr 13 2014 under Circuit Design | Analog Circuits 
Comments (0) |

QUARK'14

Embition : This is an Embedded systems based event in Quark'14, BITS Pilani K.K. Birla Goa Campus .The objective is to design the classic darts game in which a dart shall be thrown at a dartboard havi...

posted by paalak_god on Jan 9 2014 under Education | Circuit Design | Microcontroller 
Comments (0) |

Another 10 Circuit Components You Should Know

It's that time again to review all the oddball goodies available in electronic components. These are things you should have in your bag of tricks when you need to design a circuit board. If you read m...

posted by Jason Sachs on Oct 30 2013 under Circuit Design 
Comments (1) |

Short Takes (EE Shanty): What shall we do with a zero-ohm resistor?

In circuit board design you often need flexibility. It can cost hundreds or thousands of dollars to respin a circuit board, so I need flexibility for two main reasons: sometimes it's important to b...

posted by Jason Sachs on Oct 19 2013 under Circuit Design 
Comments (2) |

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
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
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
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
Comments (5) |

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
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
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
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
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
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
Comments (0) |

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
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
Comments (4) |

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
Comments (5) |

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
Comments (5) |
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