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.
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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...
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...
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...
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...
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...
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...
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...
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...
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 ...
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...
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