Electrical

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http://electrical-engineering-portal.com/download-center/books-and-guides/power-substations/transformers-basics-maintenance-and-diagnostics Transformers Basics, Maintenance and Diagnostics Transformer Action Transformer action depends upon magnetic lines of force (flux) . At the instant a transformer primary is energized with AC, a flow of electrons (current) begins. During the instant of switch closing, buildup of current and magnetic field occurs. As current begins the positive portion of the sine wave, lines of magnetic force ( flux ) develop outward from the coil and continue to expand until the current is at its positive peak.

Transformers Basics, Maintenance and Diagnostics

Power supply circuits and projects - Page 4 of 21

http://electroschematics.com/power-supply/page/4/ USB DC Power Supply from Cigar Lighter Socket by Popescu Marian in Power supply |

5 Universities with Free Online Electrical Engineering Courses

http://education-portal.com/articles/5_Universities_with_Free_Online_Electrical_Engineering_Courses.html Learn about electrical engineering with these free online courses.
http://blog.chavezgu.com/2012/03/07/the-command-line-challenge/

The Command Line Challenge. | Tomorrow I'll post

When I started using Linux I avoided the command line as much as possible.

Opamp Current Source

http://www.ecircuitcenter.com/Circuits/curr_src1/curr_src1.htm Current Source with Floating Load CURR_SRC1.CIR Download the SPICE file Getting optimum performance in certain applications requires that some components - sensors, DC motors, transistors - be driven or biased by a constant current.
http://www.kwantlen.ca/science/physics/faculty/mcoombes/P2421_Notes/Phasors/Phasors.html

Phasor Diagrams

Phasor Diagrams
Find out how to make a bridge rectifier for your wind turbine electronics | wind A Bridge Rectifier is an essential part of any home made (DIY) wind turbine generator (or Water Wheel ). A bridge rectifier converts the alternating (AC) current generated into Direct Current (DC) which can be sent to a battery bank. http://www.reuk.co.uk/Making-a-Bridge-Rectifier.htm

Making a Bridge Rectifier - Electronics

http://www.elec-toolbox.com/Formulas/Useful/formulas.htm

Useful Formulas and Preventive Maintenance to Use Online Calculator Software

Here are some common formulas that are frequently used in the field.
http://www.indiabix.com/electronics-circuits/ Electronics Circuit Simulator

Online Electronic Circuit Simulator

Circuit Diagram v0.4-Beta Freeware Download - Circuit Diagram enables you to make electronic circuit diagrams and allows them to be exported as images.

http://www.filebuzz.com/fileinfo/74391/Circuit_Diagram.html Circuit Wizard, an flagship product, is a revolutionary new system that combines circuit design, PCB design, simulation and CAD/CAM manufacture in one complete package.
Update: Breakthrough: Regular Light Bulb Made Super-Efficient with Laser (!)

Big LED Breakthrough at Purdue University Could Change the World

Copyright © Michael Richmond. This work is licensed under a Creative Commons License . Transformers are devices which use mutual induction to change the voltage and current of an AC circuit.

Transformers and Long-Distance Power Transmission