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Op Amp Circuit design...help !

Hi, I am trying to come up with a design of an operational Amplifier circuit design which will provide an output voltag...
11 comments posted 18yrs
posted by Liu.ChenH
11 comments posted 18yrs posted by Liu.ChenH

EM field between conductors

I always though it was a bad idea to enclose the individual conductors of how current electric power distribution/trans...
2 comments posted 18yrs
posted by phil-news-nospam
2 comments posted 18yrs posted by phil-news-nospam

Is DC-Generator Commutator a Rectifier?

In Theory of DC-Generator(Simple) a split ring attached to a brush in contact .....the split ring called commutator act...
11 comments posted 18yrs
posted by K.Gopalakrishnan1989
11 comments posted 18yrs posted by K.Gopalakrishnan1989

Princeton scientists spy an electron dance

A team of scientists led by researchers from Princeton University has discovered a new way that electrons behave in mat...
0 comments posted 18yrs
posted by rakesh.raj34
0 comments posted 18yrs posted by rakesh.raj34

Calculating 3 phase AC motor HP

I am not getting the correct results for horse power. An online catalog for a 3-phase motor states: 7.5hp 1755rpm 230/4...
61 comments posted 18yrs
posted by nobody
61 comments posted 18yrs posted by nobody

DC power meter suitable for a data logger?

I'm installing a multi-part solar PV system to do a head-to-head test of three different panels. I'll gang the panels i...
2 comments posted 18yrs
posted by maury.markowitz
2 comments posted 18yrs posted by maury.markowitz

Recharge a scooter battery?

Hi all, My Vespa scooter battery is dead. On the side it says 12V 9Ah 80A (eng) My question is, if I just run 12V DC in...
7 comments posted 18yrs
posted by downlode
7 comments posted 18yrs posted by downlode

How do I stay organized?

Although I am a Biomedical engineer (PhD candidate) my adviser is Electrical, so I qualify :-) The question, however, i...
3 comments posted 18yrs
posted by gregfridman
3 comments posted 18yrs posted by gregfridman

Flux linkage and flux cutting

After all these years, I still get the feeling that I really do not understand Maxwell's equations. This was brought ho...
10 comments posted 18yrs
posted by SalmonEgg
10 comments posted 18yrs posted by SalmonEgg

Voltage and Current

Q1) Is it possible that a machine burns out due to voltage drop at its terminal? I mean that the supply voltage is not...
10 comments posted 18yrs
posted by mohdalibaig
10 comments posted 18yrs posted by mohdalibaig

Hearing Aids

This has a long story behind it, but here are the basic question:s What is a reasonable cost for an analog hearing aid?...
2 comments posted 18yrs
posted by ecarecar
2 comments posted 18yrs posted by ecarecar

Faulty 3V solenoids

These are used in gas water heaters. The plunger pulls back to allow gas to flow when 3V is applied. I have 5 which hav...
14 comments posted 18yrs
posted by mdheaven
14 comments posted 18yrs posted by mdheaven