Electronics Forum / Basics / July 2007

A normal waveform is converted to digital signal by A/D converter. And
we use a microprocessor to detect the ware crest. We have considered
the method that comparing one value and next one. However, there will
be ripple or noise around the peak. It will make a mistake if we

If I decide to charge a power pack like the Xantrex 600
<http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200317822_200
317822>
from a 12v outlet inside the car, am going to poison myself from any toxic
or noxious fumes coming from the PP. Is there a way to ...

Hi....My name is sunil and im doing my electronics engineering in
India.  I have a minor query in the basics of transistors.
In a npn common base circuit, it says that the collector current Ic is
normally much greater than the base current Ib.  How is that

Button Pusher for Time-Lapse Photography
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sci.electronics.design

Can anyone explain why turning on another load in an electrical system
causes the others to diminish in intensity?  I notice in my car when
it's running that the transmission indicator display dims and
brightens with the on/off pattern of the turn signals.  Is this

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i'm searching for a M-BUS sniffer?
M-Bus is a special bus where the master will send a voltage (idle
state typically 36V) and an active voltage (12V below, but at least
12V). the slaves (max 250) are current sinks with an idle state of

Any body know how to build a Fm Reciever?
Thanx

I purchased a new Dewalt cordless drill 18 volts it came with two
batteries that I will not need for awhile maybe a year.  To store them
is it best to charge them fully before I put them away or just store
them like I purchased them

I have this:
http://bayimg.com/fADbOAABN
The image shows the input and output voltages given certain
conditions. I'd like the output to equal Vsupply+ when the input

Hi...
I'd like to build a robot, but I don't how to start or what to do...
I'd like to begin with an easy project to learn the basics of
electronics...

does anyone know of a good online treatment of formula & derivations
of formula for Selectivity (esp Series Circuits)?
I'm trying to figure out the derivation of OmegaA - OmegaB = R/L...
& this ain't homework...

I'm a newcomer to analog electronics.
Currently, what I'm studying is Op-amp circuits.
The term I'm confused about is Input & Output impedance concept.
For example, input impedance is differenf for inverting amplifier and

I have a question about expanding an address bus and a data bus.  They
are both now 8-bits.  I have a thought about expanding them.
a0 would change to a0 - a3
a1 would change to a4 - a7

Im new here, so apologies if this is the wrong place to be asking
this.
I have a 19" CRT Sony Trinitron Multiscan E400 monitor. It has been
working fine until the last few days, but now all of a sudden the