User:DavideAndrea
From Wikipedia, the free encyclopedia
[edit] About me
My name is Davide Andrea I was born in Torino, Italy, in 1957.
I moved to the US in 1976.
I am an electronics consultant in Boulder, Colorado USA.
I drive a Sparrow, a small electric vehicle.
I am a volunteer at KGNU, a great little community radio station.
My girlfriend is Ann Colcord. We got together thanks to Match,com
As an electronic design engineer, I have developed an applet to help me assign part numbers to the components in my products. It is based on my years of experience in electronic components. I would like to share it with you, to save you time and ease your work.
The National Federation of Community Broadcasters gave me a Volunteer of the Year Award for my volunteer work in community radio.
[edit] WikiPedia contributions
- Translations (Italian to English)
- Major contribution - electronics
- Major contribution - other
- Translations
[edit] External links and contact info
- Business website
- Personal website
- Hybrids Plus, where I am VP of Engineering
web --- at --- davideandrea dot com
- A list of electronic components can also be found in the electronics article
or components connected by conductors. An electrical component is any component in the generation, transmission, distribution, or consumption of electric power.
A resistor is a component whose function is to regulate the current in the circuit. One common kind is a little cylinder of graphite with metal wires coming out of either end. These are painted with colored stripes that indicate the resistance, in ohms, and the tolerance, in percent. This system is called the resistor color code.
Another kind of resistor is a filament, which is a coil of metal wire that can withstand high temperature but has a finite resistance. When a current is passed through a filament, it heats up because of this resistance. Filaments are commonly used in light bulbs and heaters. They are marked with the voltage that should be applied to them, and the power, in watts, that they will then give off as light and heat. Due to the effect of heating, a filament's resistance is higher when it is hot than when it is cold.
An electric charge can be stored and then quickly released by a component called a capacitor. A common type of capacitor consists of two pieces of metal foil (or plates) with an insulator (the dielectric) such as waxed paper between them.
If an electric charge is placed on the plates of a capacitor, it will stay there because it can't cross the insulator to the other plate. If a wire is then connected between the two plates, the charge will flow through the wire to balance the charges on the opposite plates--the capacitor is then said to be discharged.
Some capacitors look like a cylinder or blob with two wires coming out one end, and are marked to indicate their capacitance (the charge that they store per volt) in microfarads (μF), nanofarads (nF) or picofarads (pF).
Inductance in a circuit is provided by components called inductors, which are almost always built from coils of wire. Large values of inductance are obtained by forming the coil around a magnetic core, such as a lump of iron or ferrite. Inductance is also present in the windings of electric motors and generators, and to a lesser extent in any piece of wire.


