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CMOS logic

By combining P channel and N channel MOSFET transistor, whole new digital technology, CMOS technology is obtained. Read...
0 comments posted 11yrs
posted by pchung705
0 comments posted 11yrs posted by pchung705

Ground rod driving. Water method?

I asked on the alt.home.repair group about driving ground rods. The respondees so far have suggested pouring water in a...
7 comments posted 11yrs
posted by dh0496
7 comments posted 11yrs posted by dh0496

How to calbrate a DC voltage?

I have a FET and a load and a micro outputting PWM. I want to convert the PWM to DC (low-pass filtered?) which will con...
16 comments posted 11yrs
posted by not
16 comments posted 11yrs posted by not

Bipolar transistor simplest models

Even though mechanisms that makes bipolar transistor run are quite complica ted and there are many side effect to be co...
0 comments posted 11yrs
posted by pchung705
0 comments posted 11yrs posted by pchung705

Installing FTDI drivers?

I want to experiment a little with Arduino. Apparently I need to install FTDI scandal. (Who knows by sight which chips...
4 comments posted 11yrs
posted by invalid
4 comments posted 11yrs posted by invalid

Why is the fuse blowing?

http://i.imgur.com/tutmBjq.jpg Just had to share...
5 comments posted 11yrs
posted by invalid
5 comments posted 11yrs posted by invalid

"Backpan" or "backplane"?

A tech writer is asking me "backplane" or "backpan"? The use is in describing PLCs and the PCB the function cards plug...
4 comments posted 11yrs
posted by invalid
4 comments posted 11yrs posted by invalid

Op-amp Summing Amplifier

Good feature of op-amp summing amplifier is that there is direct current pa th provided from every input to the output....
1 comments posted 11yrs
posted by pchung705
1 comments posted 11yrs posted by pchung705

Inkjet ink level sensing?

One source I found says that Canon uses light from an LED--bounced from a prism at the bottom of the cartridge after in...
4 comments posted 11yrs
posted by invalid
4 comments posted 11yrs posted by invalid

Testing a pm dc motor

180 vdc, 1 hp, pm motor. with dmm what should be the first tests? motor is in a difficult location to examine visually...
7 comments posted 11yrs
posted by pconners98
7 comments posted 11yrs posted by pconners98

Op-amp differential amplifier

Op-amp differential amplifier has much wider range of input signals comparing to differential amplifier with discrete c...
0 comments posted 11yrs
posted by pchung705
0 comments posted 11yrs posted by pchung705