But when I used another set of 5 capacitors in series (1uF, 0.04ohms ESR), they also got very hot as well. It works out to about 0.2 Watts.
What is considered "a lot" for a regular ceramic capacitor anyways? I looked on the datasheet for this thing but it wasn't much help.
Are there any...
So I have an LC circuit at resonance except the capacitor gets very hot.
There is about ~2Amps AC going across it.
The setup is:
2x 0.1uF capacitors in parallel
~304uH inductor
the ESR of the cap is 0.56ohms and the resistance of the inductor is ~0.7ohms.
I was looking for the...
I would except the line driver is using the IR2110 High/Low Side Driver. I cannot input a sine waveform, only square. The output of this is also a square wave, which goes to a 0.2uF cap and ~310uH inductor.
Its actually a series LC Circuit but I think I face the same problem.
Anyways, do you think you could explain Bob S's drawings, and how it relates to the issue I'm facing?
So I have this line driver using an IR2110 to amplify a square function tuned for a specific frequency. Its used to cause oscillations in an LC circuit (pulsed at the same frequency, 1/root LC).
Experimentally though I can't find that resonance frequency. As I go above the theoretical...
Actually I've changed my mind and I'm going to go with a Stepper Motor controller chip instead of building the whole thing. (The Phillips SAA1027) It'll cost ~the same
So I'll need to have 4x this because I need to control 4 different motors seperately.
Any precautions or anything I should take?
Since i need to connect more than 3 motors I'm thinking of making a few of my own controllers (4)
using this
http://www.aaroncake.net/Circuits/stepper.asp
If I went about that, all I would need to do is just connect teh STEP line to the pins of the PIC and when required to move 1 of all of...
I'm thinking of going the stepper motor route,
and I already have a 16 series PIC , any tips ?
how would I do the circuitry for it and make it go 180 degrees exactly?
Hey,
I need to design somethign that rotates the holder drawn below, to a full 180 degrees and stops. And should be able to repeat that process as required. It should be also precise, that is, stop at the same place each time.
Any ideas on how to implement this? needs to be cheap and...
http://www.bizarrelabs.com/mag2.htm
It's similar to that,
except the coil is not fixed, but able to move because of the flexible stand (made from a coffee can) it's bolted on. Instead of the can between the coil and the nail, I tried to put a nail or can lid (metal) in between. But it's not...
So I've made an electric bell...
Problem though,
From the design I got from the internet, it's "can" in between the nail and the electromagnetic that's supposed to move.
Except, it's not moving. I changed the design a bit and have the electromagnet held by a metal can that was cut out and...
Just that it was hard to rotate the magnet fast enough to make electricity and power a diode. Plus even though I rotated it with a power drill, something was wrong and I couldn't produce elec.
...even though I was following these directions: http://www.creative-science.org.uk/gen1.html
Any...
I need to make a project for my physics summative (gr 12); and I am leaning towards electromagnetism...
since my attempt in making a generator failed - and I paid a lot for the magnet and wires.
I was thinking of making http://www.bizarrelabs.com/mag2.htm
That... but then I'm wondering if...