Hi,
I have developed a sudden interest in electricity. Never would I have thought all those physics I have learnt in school, actually is so useful.
I am thinking of creating some custom made li...
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just need some help with how to connect external EEPROM to an ATMEL chip.......
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From what ive gathered a diode is used to make the current flow in one direction but block the flow in the other direction. Does that mean diodes are only used in AC circuits since a DC circuit only f...
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I have a few questions concerning capacitators.
1.) When exactly does a capacitator discharge. Is it only when its voltage equals that of the power source and cancel each other out or is the capac...
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Hello, have a question...
A friend and I have been discussing the difference between an AM signal modulated at 100% and a CW key. The AM transmitter would be modulated with a square wave, and the ...
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Hi everybody,
I had a simple question that I've never really thought about until I actually had to do it...
If you input a single one frequency signal, will you get a whole new different frequen...
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Hello everyone!!!
This might be bit of the 'electrical engineering' topic - but maybe someone out there can help :)
Does anybody have any idea of what the maximum frequency of a piston in a shoc...
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Hi, I’ve just been reading about the mutual inductance coupling that can exist between adjacent conductors in a 3-phase power distribution system. I’m hoping to clear something up in my mind, if we wa...
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Hi everyone.
Now I ve got this problem, but not a homework. I hope some of you can help. There is a battery say B, and n small bulbs A1, A2...An. I can make a circuit as : B-> A1-> A2....An ....
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Hi,
maybe this is a dumb question, but I'm learning to use Protel DXP for PCB layout, and I'm just practising for the sake of getting the hang of it right now. I have two component footprints laid ...
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Hi,
I've been learning about transistors lately through the Horowitz & Hill book. I'm surprised to see that when used as a current source the collector voltage only changes with load voltage wi...
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Where I work, we have some equipment which uses custom batteries. I opened one of these batteries up, and inside, they're just three D batteries in series.
We want to make lighter ones of these batte...
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I was wondering if anyone could provide me with more information regarding DC-to-AC inverters. Specifically, I'm wondering what stops me from hooking up a power source (i.e. lead acid battery, small s...
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hello all,
really stugglin with this one - need to build/design a phase sensitive demodulator - i.e a circuit that can recover my orginal signal....
don't suppose anyone has any idea how to go a...
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I was wondering what the reaction would be if you aimed RF signal/s into a high powered circular electro-magnet (i think the proper term is a toroid ?). I ask because its too dangerous for me at the ...
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First i want to say hello, since i am new here.
ok, I dont know tons about physics, so the following is an idea that i have, and would like to know if it was possible.
my idea is:
Why not use ...
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I have heard that the specturm for a BPSK signal looks like similar to the spectrum for DSBSC, but when I generate a BPSK signal and look at it on the spec an it does not look like DSBSC.
I tried g...
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Do you know of any easy way to limit currents in electronic circuits? For example, if I'm using an H-bridge driver chip to drive a particular actuator, and I want to ensure that this load (actuator) d...
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Hi,
I have an electrically-actuated shutter that can be either in the "closed" or "open" positions. I want to use optoelectronic switches (slotted switches with an infrared LED ...
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hi guys
need some component that will take in 12 VDC and put out a negative 5V AND a positive 5V - just a very simple component - a part number would be great - thanks...
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hello all!
Does anybody have any idea how i get get a transfer function for a Linear Variable Differential Transfromer (LVDT).
I thought about generating a differential equation to model the LVD...
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I am trying to decide on my area specialization for graduate school. I really like VLSI design. However, I get the feeling that because VLSI jobs are not common in the defense industry, the field is...
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Hi,
Is it possible? I've found quite a few piezo electric transducers on rs.com but I wonder are they only good for transmitting or could they be used as a receiver with a really good pre-amp?
C...
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Say I have a commercial building that has a 24 inch diam. exhaust fan that is blowing approx 40 mph wind out of the building. I wonrder if I can make good use of this wind by mounting a 24-26 inch pip...
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If I have a sheet of copper, how can i calculate its resistance? do i just take the surface area of the thin side and compare it on an AWG chart?...
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