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Electrical Engineering Forum

Join the expert discussion on electrical engineering topics. Topics like the uses of electricity and the equipment for power generation. Circuits, Fiber, Signals and Systems, Semiconductor Devices...

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Capacitance of an asymmetrical parallel plate capacitor

Feb 18, 2015 · Replies 4 · Feb 18, 2015

Replies: 4

Views: 4K

Making a solar cell phone charger

Feb 11, 2015 · Replies 4 · Feb 18, 2015

Replies: 4

Views: 2K

How can we distinguish between different types of PCB?

Feb 18, 2015 · Replies 2 · Feb 18, 2015

Replies: 2

Views: 1K

Battery circuit, but using ground rather than negative pole?

Feb 18, 2015 · Replies 9 · Feb 18, 2015

Replies: 9

Views: 2K

Differentiator/Integrator circuits: Op-amp vs RLC circuits

Feb 17, 2015 · Replies 5 · Feb 18, 2015

Replies: 5

Views: 5K

Resource explaining circuit design (for newbies)

Feb 18, 2015 · Replies 2 · Feb 18, 2015

Replies: 2

Views: 1K

PID controller for current control by adjusting the PWM

Jan 18, 2015 · Replies 13 · Feb 18, 2015

Replies: 13

Views: 6K

How do transformers work and how do toroidal transformers differ?

Feb 17, 2015 · Replies 3 · Feb 17, 2015

Replies: 3

Views: 2K

Which Motor Driver IC is Best for Interfacing 4 DC Motors in an RC Car?

Feb 16, 2015 · Replies 1 · Feb 17, 2015

Replies: 1

Views: 1K

Lorentz force system, what to expect?

Feb 15, 2015 · Replies 8 · Feb 16, 2015

Replies: 8

Views: 4K

Does a constant magnetic field cause a current?

Feb 16, 2015 · Replies 1 · Feb 16, 2015

Replies: 1

Views: 3K

Maxwell ansoft region effect to solve

Feb 15, 2015 · Replies 3 · Feb 16, 2015

Replies: 3

Views: 2K

How autotransformer can be used as a starter

Feb 16, 2015 · Replies 4 · Feb 16, 2015

Replies: 4

Views: 1K

Highest possible AC frequency possible today?

Feb 16, 2015 · Replies 9 · Feb 16, 2015

Replies: 9

Views: 5K

Why does the potential difference between two capacitors seek equilibrium?

Feb 15, 2015 · Replies 7 · Feb 16, 2015

Replies: 7

Views: 7K

Electrons and Consequences of Conservation Laws

Feb 15, 2015 · Replies 4 · Feb 15, 2015

Replies: 4

Views: 1K

Phase Delay Changes with Physical Length Changes

Feb 12, 2015 · Replies 4 · Feb 15, 2015

Replies: 4

Views: 2K

How to control the speed of 1.5 Volt motor?

Feb 14, 2015 · Replies 4 · Feb 14, 2015

Replies: 4

Views: 3K

How to Calculate Resistance Values for a Phototransistor Circuit?

Feb 14, 2015 · Replies 1 · Feb 14, 2015

Replies: 1

Views: 1K

How to make/find USB Bracelet with programmable buttons?

Feb 13, 2015 · Replies 4 · Feb 13, 2015

Replies: 4

Views: 2K

Odd multimeter readings with AC->DC wall adapter

Feb 12, 2015 · Replies 8 · Feb 13, 2015

Replies: 8

Views: 4K

Speed regulator for accesibility step

Feb 12, 2015 · Replies 3 · Feb 13, 2015

Replies: 3

Views: 957

How to design a rpm and torque indicator from a fan?

Feb 10, 2015 · Replies 2 · Feb 13, 2015

Replies: 2

Views: 2K

What Causes Fields to Fringe?

Feb 13, 2015 · Replies 1 · Feb 13, 2015

Replies: 1

Views: 3K

How to charge a low amperage battery?

Feb 11, 2015 · Replies 2 · Feb 13, 2015

Replies: 2

Views: 2K

Max Output Power of 9 Phase Alternator

Jan 25, 2015 · Replies 16 · Feb 13, 2015

Replies: 16

Views: 3K

Planetary Electromagnetic Field

Feb 12, 2015 · Replies 3 · Feb 13, 2015

Replies: 3

Views: 1K

Unstable System: Pole in Right Half - Why?

Feb 12, 2015 · Replies 3 · Feb 12, 2015

Replies: 3

Views: 2K

Overall Power Factor of three motors for transformer voltage drop calculation

Feb 9, 2015 · Replies 3 · Feb 11, 2015

Replies: 3

Views: 2K

ESD Standards for Components & Systems: HBM, CDM & Automotive Testing

Feb 11, 2015 · Replies 2 · Feb 11, 2015

Replies: 2

Views: 1K

What does negative voltage mean for MOSFET?

Feb 9, 2015 · Replies 18 · Feb 11, 2015

Replies: 18

Views: 9K

Attempting to fix my treadmill

Jun 3, 2013 · Replies 8 · Feb 11, 2015

Replies: 8

Views: 14K

Why would someone choose a high or low Q factor for a high or low pass filter?

Feb 6, 2015 · Replies 7 · Feb 10, 2015

Replies: 7

Views: 4K

Troubleshooting a PWM Circuit Design

Jan 31, 2015 · Replies 2 · Feb 10, 2015

Replies: 2

Views: 3K

How TVs Detect Plugged-In Headphones

Feb 8, 2015 · Replies 11 · Feb 10, 2015

Replies: 11

Views: 2K

How Does Wireless Power Transmission Work?

Jan 27, 2014 · Replies 35 · Feb 9, 2015

2

Replies: 35

Views: 5K

Induction Cooking, skin effect, hysteresis losses

Nov 20, 2011 · Replies 1 · Feb 9, 2015

Replies: 1

Views: 4K

RMS in AC Circuits: Why Use Square for Mean Values?

Feb 9, 2015 · Replies 1 · Feb 9, 2015

Replies: 1

Views: 1K

How to generate a pulsed signal on a function generator?

Feb 9, 2015 · Replies 1 · Feb 9, 2015

Replies: 1

Views: 1K

Induction cooking & heat distribution

Feb 5, 2015 · Replies 2 · Feb 9, 2015

Replies: 2

Views: 2K

High Frequency signal with fast risetime, its bandwidth

Feb 5, 2015 · Replies 7 · Feb 9, 2015

Replies: 7

Views: 3K

How Does Electromagnetic Torque Develop in Rotating Electrical Machines?

Feb 7, 2015 · Replies 2 · Feb 9, 2015

Replies: 2

Views: 2K

Why Is There a Huge Discrepancy in My Capacitor's Measured Capacitance?

Jan 26, 2015 · Replies 7 · Feb 9, 2015

Replies: 7

Views: 2K

How to clasify if it's an inverting/non-inverting op amp

Feb 2, 2015 · Replies 33 · Feb 8, 2015

2

Replies: 33

Views: 6K

How is this sound generated? / reverse engineer sound

Feb 4, 2015 · Replies 7 · Feb 8, 2015

Replies: 7

Views: 2K

Induction and flux linkage clarification

Jan 17, 2015 · Replies 26 · Feb 7, 2015

Replies: 26

Views: 7K

Low voltage Low heat, battery powered heater

Dec 8, 2014 · Replies 8 · Feb 7, 2015

Replies: 8

Views: 3K

How can the unit of H and J be different?

Feb 7, 2015 · Replies 2 · Feb 7, 2015

Replies: 2

Views: 971

Sum of currents in protection relay

Feb 1, 2015 · Replies 1 · Feb 6, 2015

Replies: 1

Views: 2K

Someone know a bit about Generators? (windmill project)

Feb 6, 2015 · Replies 2 · Feb 6, 2015

Replies: 2

Views: 1K

AC current through AC equipment

Jan 27, 2015 · Replies 14 · Feb 6, 2015

Replies: 14

Views: 2K

Inverter high cost vs low cost performance difference

Oct 25, 2012 · Replies 2 · Feb 6, 2015

Replies: 2

Views: 3K

How Does Frequency Affect a Circuit with Capacitors and Inductors?

Feb 1, 2015 · Replies 8 · Feb 6, 2015

Replies: 8

Views: 2K

Is there a way to keep an LED turned on even when the power source is off?

Feb 6, 2015 · Replies 2 · Feb 6, 2015

Replies: 2

Views: 2K

Understanding a Colpitts oscillator

Feb 4, 2015 · Replies 18 · Feb 6, 2015

Replies: 18

Views: 3K

Frequency modulated laser - transmission of voice

Feb 5, 2015 · Replies 2 · Feb 5, 2015

Replies: 2

Views: 1K

Frequency Question -- 24 VAC, 60 Hz versus 24 VAC, 20 Hz

Jan 11, 2015 · Replies 12 · Feb 5, 2015

Replies: 12

Views: 3K

Heat simulation in electrical/mechanical engineering

Feb 5, 2015 · Replies 2 · Feb 5, 2015

Replies: 2

Views: 1K

How to simplify behavior of a field-effect transistor

Feb 2, 2015 · Replies 7 · Feb 5, 2015

Replies: 7

Views: 2K

Electromagnets in tattoo machine

May 31, 2007 · Replies 1 · Feb 4, 2015

Replies: 1

Views: 8K

Can You Set Up 4 DC Motors in Parallel with a Variable Resistor and LED Strip?

Jan 30, 2015 · Replies 11 · Feb 4, 2015

Replies: 11

Views: 2K

Voltage Regulation for three phase Dzn Transformer

Jan 29, 2015 · Replies 2 · Feb 4, 2015

Replies: 2

Views: 3K

How can I connect an aux to a cd changer?

Feb 3, 2015 · Replies 4 · Feb 3, 2015

Replies: 4

Views: 8K

Discharging one side of a capacitor only

Jan 26, 2015 · Replies 12 · Feb 3, 2015

Replies: 12

Views: 3K

Three phase induction motor efficiency

Jan 29, 2015 · Replies 15 · Feb 3, 2015

Replies: 15

Views: 6K

Barkhausen tubes and other unicomponent oscillators

May 11, 2014 · Replies 43 · Feb 3, 2015

2

Replies: 43

Views: 6K

Help needed with charge sensitive amplifier circuit

Oct 15, 2014 · Replies 12 · Feb 2, 2015

Replies: 12

Views: 3K

Can I Control Electrostatic Levitation with a Power Supply?

Feb 1, 2015 · Replies 2 · Feb 2, 2015

Replies: 2

Views: 2K

Induction motor generator capacitor

Oct 22, 2014 · Replies 45 · Feb 2, 2015

2

Replies: 45

Views: 17K

How to Activate Relay using Transistor?

Jan 18, 2015 · Replies 48 · Feb 2, 2015

2

Replies: 48

Views: 14K

FM transmitter not transmitting

Jan 31, 2015 · Replies 3 · Feb 1, 2015

Replies: 3

Views: 3K

Can memristance be simulated using op-amps?

Feb 1, 2015 · Replies 1 · Feb 1, 2015

Replies: 1

Views: 1K

Question about electricity towers and poles

Jan 25, 2015 · Replies 17 · Feb 1, 2015

Replies: 17

Views: 6K

How to drive a 115V 20A DC brushed motor with DC supply

Jan 31, 2015 · Replies 1 · Jan 31, 2015

Replies: 1

Views: 1K

Is Input to a Thermocouple a Step or Ramp?

Jan 31, 2015 · Replies 3 · Jan 31, 2015

Replies: 3

Views: 2K

Why doesn't a center tap from a transformer short when grounded?

Jan 29, 2015 · Replies 7 · Jan 31, 2015

Replies: 7

Views: 12K

Simple regenerative generator/motor system

Jan 26, 2015 · Replies 12 · Jan 31, 2015

Replies: 12

Views: 3K

PID algorithm for constant temperature controller.

Jan 30, 2015 · Replies 6 · Jan 31, 2015

Replies: 6

Views: 2K

Non-Ohmic Materials: Learn About Vanishingly Small Terms

Jan 30, 2015 · Replies 3 · Jan 31, 2015

Replies: 3

Views: 12K

Where does inductive reactance go?

Jan 28, 2015 · Replies 8 · Jan 31, 2015

Replies: 8

Views: 2K

How can I read 96 input channels with minimal hardware and noise?

Jan 29, 2015 · Replies 9 · Jan 30, 2015

Replies: 9

Views: 2K

3 Phase Induction Motor Full Load Power Factor

Jan 30, 2015 · Replies 1 · Jan 30, 2015

Replies: 1

Views: 4K

Solve Linear Motor Equations - Calculate Power & Force

Jan 27, 2015 · Replies 9 · Jan 30, 2015

Replies: 9

Views: 2K

House circuit wiring for 48Vdc and 240Vac

Jan 28, 2015 · Replies 9 · Jan 29, 2015

Replies: 9

Views: 3K

What does "Enable" mean in this picture? The EN

Jan 28, 2015 · Replies 1 · Jan 29, 2015

Replies: 1

Views: 2K

What is the Relationship Between Piezoelectric Materials and Electrical Output?

Jan 27, 2015 · Replies 4 · Jan 28, 2015

Replies: 4

Views: 2K

Electrostatic Precipitator to Contain Graphite Powder

Jan 26, 2015 · Replies 15 · Jan 28, 2015

Replies: 15

Views: 3K

Can We Store AC Power Like DC?

Jan 24, 2015 · Replies 8 · Jan 28, 2015

Replies: 8

Views: 7K

Understanding Snubber Circuits: Benefits & Differences

Jan 25, 2015 · Replies 2 · Jan 26, 2015

Replies: 2

Views: 2K

Waterproof iPhone case with speakers/microphone

Jan 26, 2015 · Replies 3 · Jan 26, 2015

Replies: 3

Views: 1K

Total internal confinement of magnetic field

Jan 15, 2015 · Replies 40 · Jan 26, 2015

2

Replies: 40

Views: 5K

Does metal film resistor work at cryogenic temperature (3K)?

Jan 20, 2015 · Replies 6 · Jan 26, 2015

Replies: 6

Views: 4K

MOSFET Properties - Turning On/Off with 2n7000

Jan 25, 2015 · Replies 2 · Jan 26, 2015

Replies: 2

Views: 2K

Solenoid vs transformer inductance

Jan 24, 2015 · Replies 3 · Jan 25, 2015

Replies: 3

Views: 4K

Using a Resistor to Power Multiple Devices: A Simple Guide

Jan 25, 2015 · Replies 2 · Jan 25, 2015

Replies: 2

Views: 2K

Transforming DC to AC: The Role of Inductors and Capacitors in RLC Circuits

Jan 24, 2015 · Replies 23 · Jan 25, 2015

Replies: 23

Views: 6K

Voltage Law & Work: Get Your Misconceptions Straight

Jan 20, 2015 · Replies 11 · Jan 24, 2015

Replies: 11

Views: 2K

Creating an electrical gag gift

Jan 19, 2015 · Replies 5 · Jan 24, 2015

Replies: 5

Views: 2K

Magnet/Electricity to rotate object 90 degrees?

Jan 21, 2015 · Replies 6 · Jan 24, 2015

Replies: 6

Views: 3K

Capturing Tiny Amounts Of Electricity At A Time?

Jan 22, 2015 · Replies 11 · Jan 24, 2015

Replies: 11

Views: 2K

Electrical Engineering

Electrical engineering is a discipline within engineering that focuses on the study and application of electricity, electronics, and electromagnetism. Electrical engineers design, develop, and maintain systems and devices that utilize electrical power, ranging from small-scale electronics to large power distribution networks. The field encompasses a diverse range of technologies, including telecommunications, signal processing, control systems, and power generation.

Electrical engineers play a crucial role in advancing technology, contributing to innovations such as computers, smartphones, renewable energy systems, and electric vehicles. Their work involves a combination of theoretical understanding, mathematical modeling, and practical application to create solutions that power the modern world.

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