Archive for December 2009
An instrumentation amplifier is a type of differential amplifier that has been outfitted with input buffers, which eliminate the need for input impedance matching and thus make the amplifier particularly suitable for use in measurement and test equipment. The ideal common-mode gain of an instrumentation amplifier is zero, which means that it is a very →
Take a look at my last year’s Christmas Lights display and controlling them posting to Home Automation discussion group. You can find many links to videos and information on computer controlled Christmas Lights displays. →
Ground loops affect video signals. Understand them, then deal with them. When designing or installing the cables for a video transmission system, one assumption that engineers commonly make is that the local earth grounds of both ends of the cable are the same. When circumstances don’t support this assumption, the video performance can exhibit gross →
This is quite funny logo for an IC. This VIA GRA HT8501 is a real chip used on PC motherboards. The question is the naming of the chip intentional or just happened by accident? Original image source:http://leenks.com/gallery1046-58.htm →