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Impedance
The impedance of an inductor is the total resistance to the flow of current, including the AC and DC component, the DC component of the impedance is simply the DC resistance of the winding, the AC component of the impedance includes the inductor reactance, the following formula...
These displays are available for only $14.98
Discount available if you buy more than one.
If you are interested, I can assemble the PCBs, and put them on eBay for your purchase. Simply pay with paypal, and the transaction is recorded with ebay.
3-wire serial interface
low voltage operation...
Now you can even buy korean noodles from my ebay if you really wanted to.
It is more expensive than buying them in a local shop- but maybe there is no local shop with korean noodles on offer.
http://www.ebay.com/sch/pic_hitechworld/m.html
For electroics project updates, visit my blog...
We got started in Python with simple assignment statements and the print statement in the last entry.
In this one, we'll examine the some Python innards and its type system.
Let us examine how Python converts your code into a machine-readable form.
In languages like C or C++, it is the...
For all of high school C++ was my favorite language for writing general applications - probably because of the similarity to C and my laziness to try and learn an entirely new language.
For some reason, I didn't get to do a whole lot of C++ in college because of an EE major. I tried playing...
http://aranna.altervista.org
I will add more content soon such as various old C compilers, and ebooks about Windows programming.
These ebooks are from dated books which are no longer sold and no longer relevant for mainstream commercial programming.
These downloads are designed to use...
The recommended first step in starting out on this project is to make sure that you will be able to successfully compile and run your program once you've written it. This has proven to be a bit of a challenge for some because of a few of subtle points regarding the tools. So hopefully this...
Nand2Tetris is the name of a project that is the focus of the text The Elements of Computing Systems: Building a Modern Computer from First Principles by Noam Nisan and Shimon Schocken (2008 MIT Press, ISBN 978-0-262-64068-8).
The book is extremely affordable -- when I last looked it was $28...
Introduction and Scope
Diodes, specifically p-n junction diodes, are a commonly used device in all manner of electronic circuits. These range from being used as very high power rectifiers dealing with hundreds (or thousands) of volts and/or amps to detecting the information signal in an AM...
There is a widespread -- and not too unreasonable -- misconception that a battery is basically a charged capacitor that has a reservior of net positive charge on one side and a reservior of net negative charge on the other side.
Somewhat related to this misconception is a difficulty in...
1Hz time base - using CD4060,CD4013, 32768 hz crystal.
I used this circuit for a long time.
The Equivalent Circuit of Zener diode Using Diode and LED Protection.
The circuits are using to explain for someone how a Zener diode work when using diodes, it's more easy to understand, and I hope these can help you some more.
Introduction
Let's set the stage for this discussion by defining a function with the following truth table.
#||A|B|C||F
0||0|0|0||0
1||0|0|1||1
2||0|1|0||0
3||0|1|1||1
4||1|0|0||1
5||1|0|1||0
6||1|1|0||1
7||1|1|1||1
Table 1 - Arbitrary function defined via Truth Table
The first column is...
Tracecom and I got together on this. I designed it, he built it, he says it works.
The Max6035 chip in 1/2% accuracy is used as a stable 10.00 ma current source. The rest is calibration and a Kelvin connection.
The 200 mv scale on a DVM will show 199.9 while indicating 19.99 ohms. Good for...
The complex power of a circuit in sinusoidal steady state is defined as
(1) \ \overline{S} \, = \, P \, + \, jQ
where P is the real power and Q is the reactive power given by
(2) \ P \, = \, V_{eff} \cdot I_{eff} \, \cos(\Theta_{vi})
\
(3) \ Q \, = \, V_{eff} \cdot I_{eff} \...
Low Temperature Drift jfet Constant Current Circuit
You can almost see by looking at the transfer curves of a typical jfet that all the curves for various temperatures cross at a point. My point here is that they really do cross at a point.
Any particular part number for a jfet will have a...
This circuit was prompted by the following thread
http://forum.allaboutcircuits.com/showthread.php?t=88409
in which the OP wanted to know how to choose the resistor values by design instead of by happening (i.e., trial and error).
I figured it might be useful as a general example, and so put...
Let's use the following circuit.
Ideal Opamp Approximations
We will use the following three assertions based on the assumption that we are working with an ideal opamp:
1) No current flows into either input.
2) The output is an ideal voltage source.
3) The configuration is consistent with...
