Electrical Engineering Information Online: Formulas, Theorems, Jobs
ELECTRICAL ENGINEERING REFERENCE INFORMATION. ELECTRICITY AND MAGNETISM BASICS, CIRCUIT THEOREMS AND EQUATIONS. This page provides a concise introduction to electrical engineering (EE) as well as basic formulas and theorems. Is a discipline that deals with electricity, magnetism and their applications. EE applications include electronics. In academia and electronic industry, the terms electrical and electronics engineer often are used interchangeably. In other industries, the term electrical engineer.
Off Grid Solar System: Wiring Diagram, Design, Sizing
RESIDENTIAL OFF THE GRID SOLAR SYSTEMS. Stand-alone (or off the grid) PV systems are intended to operate independent of the electric utility. Since PV panels do not store energy and can generate electricity only during daylight hours, for continuous power flow they need to generate excess of the energy which has to be stored somewhere. Normally, this extra energy is accumulated in the batteries. That can produce electricity at night and during cloudy periods. Electric gensets. Particularly, one AC output...
Electrical Formulas, Calculations, Basic Electronics Engineering
BASIC ELECTRICAL and ELECTRONICS ENGINEERING FORMULAS. EE REFERENCE, THEOREMS, CIRCUIT DESIGN AND ANALYSIS,. Let's start with quick definitions. Electronics. Involves the design and analysis of electronic circuits. Originally, this subject was referred to as radio engineering. The term circuit refers to a collection of components through which electrical current can flow or which use electromagnetic fields in their operation. Basic circuit design and analysis rests primarily on two Kirchoff's laws. Dissi...
Electronic Circuit: Formulas, Ohm's Law Pie Chart & Calculator
THE BASICS OF ELECTRONIC CIRCUIT. UNDERSTANDING CURRENT, VOLTAGE AND POWER. The purpose of electronic circuits is to control the flow of electric currents. This may sound like a silly question, but why do we need to control the currents? Well, it has been found experimentally that the intensity of various electrical effects is related to the amount of the charge Q. Which is called the current. Presents a special interest in engineering. Or potential difference between these two points: V=ΔE/q. A voltmete...
Power Supply Tutorial- SMPS
SWITCH MODE POWER SUPPLY TUTORIAL. BLOCK DIAGRAM and BASIC THEORY OF OPERATION. Is a device that transfers electric energy from a source to a load by using electronic circuits. In the process it changes the energy characteristics to meet specific requirements. Practically every piece of electronic equipment needs some form of power conversion. A typical power supply unit (PSU) serves the following main functions:. AC power first passes through fuses and a line filter. Then it is rectified by a full-w...
Heat Sink Design, Calculators, Thermal Analysis Software
THERMAL MANAGEMENT OF ELECTRONICS, HEAT EXCHANGERS GUIDES, FREE SOFTWARE AND CALCULATORS. Let's begin by defining the main terms. The goal of thermal management is to control the temperatures of the electronic devices. But what is. Electric currents and alternating electromagnetic fields cause power dissipation in all electronic parts, which results in increase of their temperatures. This in turn affects the reliability and life expectancy of these components. Failure rate and its inverse, mean t...At ce...
ATX 24-pin Power Supply Connector with 20-pin Board & Visa Versa
CONNECTING a POWER SUPPLY. TO an ATX MOTHERBOARD WITH DIFFERENT PIN NUMBERS. Constantly changing computer specifications often cause power supply compatibility issues when you do a replacement or an upgrade. The frequent questions are how to connect a PC power supply with 20-pin main connector to a 24-pin motherboard or visa versa, and will a 20 pin plug work in 24 pin socket? To some branded cases (such as Power Mac's, HP and Dell), which use different non-standard wiring. Another issue is PSUs built pr...
Power Inverter Circuits: DC-AC Converter
YOUR GUIDE TO DC to AC POWER INVERTERS. Its typical application is to convert a battery voltage into conventional residential AC. Inverters are used in a wide variety of applications from small car adapters to large grid-tie systems that can supply electricity to an entire home. There are three basic types of dc-ac converters depending on their AC output waveform: square wave, modified sinewave, and pure sine wave (see the diagram below). The square wave. They are the most popular low-cost inverters.