-
Posts
71 -
Joined
-
Last visited
Never
Content Type
Profiles
Forums
Events
Everything posted by GPG
-
~43.5mV, 23 gain Reference please Reference please Capable of doing so down to 5
-
Previous post Gain of 23 The sensor is easily able to drive a 10K load. The amp is probably stuffed through shorting the outputs.
-
In his original circuit, the output will be 6.6V It only goes to 7.6 volts in your modified design. There is nothing wrong with the original design that requires modification, and it provides much better common mde rejection since the gain from both inputs is equal.
-
Designing a computer based voltmeter
GPG replied to adrobnis's topic in Electronic Projects Design/Ideas
. http://www.dutchforce.com/~eforum/index.php?showtopic=1556 -
The NE5532 is damaged. Replace it.
-
Correct
-
Designing a computer based voltmeter
GPG replied to adrobnis's topic in Electronic Projects Design/Ideas
Bits of resolution for voltage measurement -
http://www.uco.es/dptos/electro/electronica/documentos/ele2N3055-D.pdf If forced beta = 10 you have a good margin.
-
KVM switch circuit / Multi-pole double throw switch
GPG replied to Wild Violence's topic in Electronic Projects Design/Ideas
Look at http://www.ee.washington.edu/stores/DataSheets/cd4000/74c244.pdf -
KVM switch circuit / Multi-pole double throw switch
GPG replied to Wild Violence's topic in Electronic Projects Design/Ideas
The 4053 is an analog bidirectional switch. Looking at the pinning of the 157 it is easy to make the assumption that it is too. The OP saying that he was trying to switch between 2 leds lead me to the possibility that he had made the same. -
Temperature sensitive fan speed controller
GPG replied to crisisfromthesky's topic in Electronic Projects Design/Ideas
http://www.micrel.com/product-info/products/mic502.shtml -
http://www.electronicsforu.com/EFYLinux/circuit/jun2003/CI-2-DTMF.pdf http://assets.zarlink.com/AN/msan_108.pdf
-
Designing a computer based voltmeter
GPG replied to adrobnis's topic in Electronic Projects Design/Ideas
What resolution do you need? -
Presuming you are monitoring the cylinder head temp, you will need a thermocouple or RTD for these temperatures. Sparkplug mtg one here http://www.performancetrends.com/DatamiteTemperaturePictures.htm
-
KVM switch circuit / Multi-pole double throw switch
GPG replied to Wild Violence's topic in Electronic Projects Design/Ideas
The 157 is not a bidirectional switch -
scr firing circuit for ac motor speed control
GPG replied to dee's topic in Electronic Projects Design/Ideas
The 5V polarity. Resistor in series with base of pulse transitor. Diode across be of same -
The suffixes are package types. N is the plastic DIP type. Go to the manufacturers site for others.
-
Try this
-
www.necel.com/cgi-bin/nesdis/dl_ docpdf.cgi?lang=E&litcode=U11450EJ1V0DS00 www.necel.com/micro/ods/eng/list/17K/UPD17072.html 2 minutes
-
Google "induction motor"
-
This might help: www.intersil.com/data/an/an9642.pdf
-
It is a load of rubbish. While static charges of several KV can be picked up on an antenna, the current is so small that charging a deep cycle battery from such an arrangement is not possible.
-
Another http://www.linear.com/prod/datasheet.html?datasheet=163 Google "cold junction compensation". You cannot expect accurate results from a thermocouple without taking this into account.
-
www.national.com/ms/LB/LB-24.pdf
-
The transformer probably has an internal fuse. Some transformers have the connection between the primary winding and the fuse on a unused pin, others require peeling off the outer layer of insulation to locate.