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Sci.Electronics.Basics
Sci.Electronics.Basics is a worldwide Usenet news group that is used to discuss basic electronics questions.
There are 4626 threads in our archives.
You are looking at page 14 of 463.
The threads with the newest articles are listed first.
TV remote IR receiver module [8 articles]
pawihte - 2009-11-27 07:51:00
Are TV IR remote control receiver modules frequency selective? I
know that remote control systems use PWM and the pulses are
decoded by a microprocessor. What I would like to know is whether
the...
Switching topologies for power electronics [3 articles]
Matthew Langille - 2009-11-26 11:46:00
What is the difference between a full or half bridge constructed out
of MOSFETs, and one constructed out of IGBTs? What are the pros and
cons of each, and which would be more suitable for a high fre...Linear regulator [7 articles]
Jonas - 2009-11-26 02:35:00
Hello
HAs anyone ever tried to use a linear regulator to regulate a PWM
signal?
My situation:
Input signal, 24V PWM 400Hz
I want to have 12V PWM signal 400Hz
I was thinking of using a linear...How delicate is the output of a CMOS IC? [5 articles]
pawihte - 2009-11-26 02:35:00
Are standard CMOS logic ICs any more susceptible to damage from
external causes than BJT devices via the OUTput terminals? By
external causes, I mean things like ESD or a mild leakage current
fr...Trying to bias a JFET... [10 articles]
Dave - 2009-11-26 02:33:00
and wondering, if I am trying to put the gate at Vp or close thereto, is the
voltage applied in referrence to the source voltage or ground? I am
seriously considering putting the gate at ground p...Counter/ Timer Circuit [3 articles]
DaveK - 2009-11-25 19:31:00
I=92m a baseball coach at a high school and when we use our pitching
machine our players want to hit more balls than they should. I would
like for an alarm to go off after a pre-determined amount o...AC coupled offset and gain problem [5 articles]
Douglas Beeson - 2009-11-25 18:36:00
I am having trouble understanding the behavior of a circuit I am using to apply
gain and offset to a triangle wave.
The circuit in question is here:
http://gallery.me.com/doug.beeson#100069/of...A mechanical volume control that actually works! [2 articles]
John Doe - 2009-11-24 13:27:00
Like most everyone else, I have had many devices that included a
mechanical rotary volume control. And as far as I can remember, on
every single device, the volume control eventually failed, usually...Need a beeping device [5 articles]
Richard - 2009-11-22 16:44:00
Hi,
I am looking for a component to control from a microcontroller to make
a beeping noise, nothing to loud but to sound electronic and not like a
buzzer. I just need an audible alert that is ...Broadband transformer center tap? [3 articles]
Hammy - 2009-11-21 16:06:00
I want to use a transformer on the output of a DAC on a AD9834 DDS IC.
Heres is a picture of using a transformer on the output of one of
Analog devices DDS IC's.
http://i48.tinypic.com/25gvw5...