⏚ Electrical Engineering

sparky wana be

(to all those sparkys out there only who know what they are talking bout reply only) I have just finished college and a...

7 comments posted 19yrs

posted by bondmike

7 comments posted 19yrs posted by bondmike

electrical conductor sag practical guide

Hi, For conductor sag, is there a practical guide? Is there a rule of the thumb method that says for a span of 'x' mete...

1 comments posted 19yrs

posted by lekosmoth

1 comments posted 19yrs posted by lekosmoth

Scope probe across AC outlet

I was told something and don't completely understand it. I was told: If I place a scope probe across an AC outlet, I'll...

6 comments posted 19yrs

posted by private

6 comments posted 19yrs posted by private

LCD Diaplay temperature issue?

A Gateway 26" LCD monitor/TV is getting warm. I measure 115oF (45oC) with a contact-type thermocouple sensor attached t...

5 comments posted 19yrs

posted by me

5 comments posted 19yrs posted by me

One-Shot timer

Hi, I am on the lookout for a pre-built one-shot timer that will accept a 1ms trigger pulse and output a 100ms pulse (o...

0 comments posted 19yrs

posted by m.westacott

0 comments posted 19yrs posted by m.westacott

becoming a sparky

hi i have just finished college i have achived a c&g in electrical installations i have abit of experince in the filed...

20 comments posted 19yrs

posted by bondmike

20 comments posted 19yrs posted by bondmike

How HUMplug-e ground loop solver works ?

Anyone has experience on this HUMplug-e product ? Web page http://www.21best.com/21_best/electr" Simply plug your equip...

10 comments posted 19yrs

posted by then

10 comments posted 19yrs posted by then

Could anyone explain what the sliding-mode (nonlinear) is?

Could anyone explain briefly what exactly the sliding-mode for nonlinear control is? I tried several times finding from...

1 comments posted 19yrs

posted by kasittik

1 comments posted 19yrs posted by kasittik

power supply error amplifier

Hello all, I'm working on a home brew regulated high current linear power supply. it uses an NPN transistor array drive...

10 comments posted 19yrs

posted by timperry

10 comments posted 19yrs posted by timperry

Problems using an LM324 as a comparator ?

I'm using an LM324 to drive a MOSFET from a digital output from a microcontroller. The microcontroller runs at 3.6VDC a...

2 comments posted 19yrs

posted by me

2 comments posted 19yrs posted by me

FET comparison chart

I've always been confused between JFETS, MOSFETS, Enhancement mode, etc... Recently I did some reading and have a bette...

2 comments posted 19yrs

posted by private

2 comments posted 19yrs posted by private

The perils of "search & replace" in documentation.

I was looking at a "Model PL09564 PLUG-IN POWER MONITOR" on the web and printed out the product manual (one page), whic...

475 comments posted 19yrs

posted by a24061

475 comments posted 19yrs posted by a24061

Connecting 3 phases triangle-star transformer NEMA

Hi, I wonder why NEMA standard tells to connect star-triangle 3-phases transformer a so the secondary is lagging the pr...

5 comments posted 19yrs

posted by s.alex

5 comments posted 19yrs posted by s.alex

Sigle phase used on three phase motor

I have been working on a three phase machine that is connected to a single phase supply. What power characteristics sho...

6 comments posted 19yrs

posted by aefjkjjhh

6 comments posted 19yrs posted by aefjkjjhh

Structural Design & Sheet Folding Program

EMPIRE 2D Structural Design with model building and import to any CAD programs, together with NormDesk SheetFolding pro...

0 comments posted 19yrs

posted by arnold

0 comments posted 19yrs posted by arnold