⏚ Electrical Engineering

Motor Speed Controller for 12v Brushed DC Motor (not PM) with speed regulation

I have a 12v Brushed DC motor (not Permanent Magnet) that takes about 2.5A when heavily loaded. I want to make (or buy...

14 comments posted 17yrs

posted by notty

14 comments posted 17yrs posted by notty

Freaky Amazing DMM?!

I'm testing a new DMM I purchased, AM-240 by Amprobe. It claims *over* 100Mohm impedance in 400.0mV mode. So I charged...

115 comments posted 17yrs

posted by energymover

115 comments posted 17yrs posted by energymover

Looking for Matt Brown's Basic program that does Neher McGrath

He describes this program in a paper he wrote for the IEEE in 1985. I tried contacting him about 15 years ago but could...

0 comments posted 17yrs

posted by GeraldCNewton

0 comments posted 17yrs posted by GeraldCNewton

DC power for the data center

http://www.infoworld.com/article/09/01/14/02TC-dc-power_1.html While I am not fundamnetally opposed to using DC, the po...

2 comments posted 17yrs

posted by phil-news-nospam

2 comments posted 17yrs posted by phil-news-nospam

Solutions manual to Modern Control Systems 11th by Richard C Dorf and Robert H. Bishop

solutions manual (To search click in keyboard Ctrl+F) Solutions Manuals in Electronic (PDF)Format! Just contact with ,...

2 comments posted 17yrs

posted by sendsolutions

2 comments posted 17yrs posted by sendsolutions

Major reduction in online continuing education prices for Alaska and Washington electricians

Others are charging from $300 to over $500 for 24 hours of online courses. These people have overhead, overhead and mor...

0 comments posted 17yrs

posted by GeraldCNewton

0 comments posted 17yrs posted by GeraldCNewton

Cable Loss (KVAR)

Hi, I am trying to figure out reactive power loss for a 965 ft 1/0 AWG cable. I have already calculated the power loss...

12 comments posted 17yrs

posted by paynetd

12 comments posted 17yrs posted by paynetd

Catastrophic failure SF6 Circuit Breaker

We have had a catastrophic failure of an SF6 circuit breaker. This breaker was used as a synchronising breaker for a CH...

15 comments posted 17yrs

posted by tjke.gilmour

15 comments posted 17yrs posted by tjke.gilmour

12 Amps on Water Main!

I've got a problem with the grounding in my neighborhood, and I need some help in getting the right solution. I noticed...

11 comments posted 17yrs

posted by mingus123

11 comments posted 17yrs posted by mingus123

Meet interresting people and learn easily a new language

Hello A new website is born sharelanguage.com. http://www.sharelanguage.comit's very useful if you want to find, meet n...

0 comments posted 17yrs

posted by pluton76

0 comments posted 17yrs posted by pluton76

Calculating Cable Loss

Hi, I am trying to figure out the calculation for the cable loss of a 30 ft cable that is 3 phase and has 4 cables per...

5 comments posted 17yrs

posted by paynetd

5 comments posted 17yrs posted by paynetd

Speaker cable price

I was wrong about that $100 speaker cable: From: http://www.audiovisionsf.com/?page=categories Cardas Audio Speaker Cab...

4 comments posted 17yrs

posted by vwall

4 comments posted 17yrs posted by vwall

ultra fast frequency switching converter

high-tech operate engineering company IPM develops and patent grand DE10328937 a dual high power, high voltage, medium...

0 comments posted 17yrs

posted by werner-grosse

0 comments posted 17yrs posted by werner-grosse

Simple computer PSU question

I've got a 500W power supply on my computer. It doesn't really need that much power, so my question is : Am I continuous...

1 comments posted 17yrs

posted by n

1 comments posted 17yrs posted by n

Windows 7 - Hmmmm}:{)

Microsoft's Ballmer: Windows 7 is nearly final The Associated Press 11:22 PM EST January 7, 2009 Microsoft Corp. CEO St...

0 comments posted 17yrs

posted by wavebiscuit

0 comments posted 17yrs posted by wavebiscuit