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Page 3.
If this works properly I will post this particular design page in the electronics general category
for people to look at and suggest design corrections, for beginners to learn from.
This can be scrutinized by people more knowledgeable to give good design suggestions so everyone starting...
PAGE 3 REDESIGN working from input to output stage.
At this point I'm running into clipping problems when I add a fourth stage,
I check the DC bias for each stage and the VC. is around the 1/2 VCC area.
I check the Av. each individually, and I get the gains required, but coupling them is...
Ok Now I've been working on the next stage, and realizing that the Zin is dropping instead of increasing, as I try to get as much gain as possible.
Probably if I were to use bypass caps. It would solve most of this but I'm trying to not have to use bypass caps. if I don't have to.
My other...
My first project with an ATMEL AVR microcontroller (ATMega8). I use the DS1820 digital temperature sensor.
http://www.youtube.com/watch?v=ToWDsdDHvas
As a hobbiest (NON engineer), I am designing a small signal amp in the most proper way I know how through my methods of calculations, and imperical breadboarding and measurements and tests, using a calculator breadboard and components, oscilloscope, audio signal generator,
resistor sub box...
If you have forgot or lost your password you can use the Lost Password Recovery Form
On this form you should enter the registered email address for your user account. An email will be sent to that address shortly after entering the details with instructions for resetting your password...
This is a tutorial on basic transistor circuit design for multiple staging.
This is a AC current sensor, based on a "radioshack" 12.6V. 1.2A, power transformer, used as the detector.
Prepararation:
Begin by taking an ordinary 60W. lamp. Wrap its cord about 4 complete turns longitudenal around...
In January of this year I bought an old motorcycle, a 1946 Harley Davidson WL. This is a civilian model of a motorcycle that HD made several hundred thousand of during WW II. The engine has two cylinders displacing 45 cu. in., in what they call a "side-valve" configuration, what I've always...
This project was made by my group at Newcastle university in UK. It fades a LED while you are pressing a button. The LED has a red and green colour. It starts from the red colour and fades through several colours to green. Then it starts from red again and so on...
Primary stall sensor.
Under normal forward drive conditions the motor current would flow from positive supply
through the series 2-6 ohm resistor causing a small voltage drop to be seen across it
than through motor and through its drive circuitry to ground.
(I'm so used to analyzing circuits...
This car was made by my group at Newcastle university in UK. It follows the magnetic field of a wire which lies on the floor and carries an AC current.
Here is a video:
http://www.youtube.com/watch?v=StNJlRTWs9k
This is a schematic of a full adder.
Different switch inputs supposed to be 8 pictures. max. is 6 per post.
I wish I could delete fig.1. which didn't show up and replace it with the proper picture.
As the emitter resistor (RE) is increased by 10 ohms at a time
the dc voltage (VC) changes from a lower output voltage to a higher output voltage.
This is due to the fact that as RE gets larger in value less current flows
to RC, therefor voltage drop across RC becomes less so VC rises.
Now...
I will try to add basic circuit designs to this blog.
It will be like a design diary where I will try to explain my methods of designing transistor circuits.
First a little background of my experiance with electronics.
I started out in the 1980's with an interest in learning how to program a...
On HHO.
(A reply I'm tired of retyping)
Yes, HHO can be generated. Yes, it burns. We agree on that much.
The issue is the source of the energy to produce HHO, and the impact on vehicle performance.
A mechanic working on this a bit back calculated an additional 3 HP load on the engine to...
Here are some tutorials I made a while back, covering some test equipment and circuits that all budding EEs will eventually encounter.
PWM (Pulse Width Modulation) tutorial
Oscilloscopes (3 parts)
Function generators
Replacing capacitors
I started out here: http://forum.allaboutcircuits.com/showthread.php?t=22652
with a question about automatic current switching on an electromagnet. Allow me to explain somewhat.
The goal: Detect magnetism and then tell the DC power supplied to an electromagnet to reverse current. Stay in...
This machine drills almond seeds and puts them along a needle. A string is attached on the bottom end of the needle and the seeds move on the string when you take the needle and lift it.
This machine is used to produce a traditional sweet of Cyprus called 'soujioukos'.
The whole process is...
