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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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If electricity is flow of electrons and also positive and negative

Apr 19, 2012 · Replies 4 · Apr 26, 2012

Replies: 4

Views: 2K

Peltier Cooler connected to Power Supply, is this configuration safe?

Apr 26, 2012 · Replies 2 · Apr 26, 2012

Replies: 2

Views: 3K

Control engineering: lead and lag compensators

Apr 25, 2012 · Replies 1 · Apr 26, 2012

Replies: 1

Views: 6K

Guitar Related Electronics - Where to Start

Apr 20, 2012 · Replies 24 · Apr 26, 2012

Replies: 24

Views: 4K

Inductor Antenna for 125kHz NFMIC System: FCC Part 15

May 17, 2011 · Replies 9 · Apr 25, 2012

Replies: 9

Views: 9K

How to slow down a 1.5-3v motors RPMs?

Apr 25, 2012 · Replies 2 · Apr 25, 2012

Replies: 2

Views: 4K

Experimenting with 24VDC to AC Generator Output

Apr 23, 2012 · Replies 4 · Apr 25, 2012

Replies: 4

Views: 2K

Charge Battery w/ Universal AC Adapter: Tips & Advice

Apr 24, 2012 · Replies 4 · Apr 25, 2012

Replies: 4

Views: 3K

Rectifier Circuits: Questions & Answers

Apr 23, 2012 · Replies 4 · Apr 25, 2012

Replies: 4

Views: 3K

Troubleshooting My DIY Capacitive Transducer

Mar 17, 2012 · Replies 39 · Apr 24, 2012

2

Replies: 39

Views: 10K

How Can I Achieve Low-Noise Amplification of 1nA to 1V?

Feb 14, 2012 · Replies 46 · Apr 24, 2012

2

Replies: 46

Views: 17K

Calculation for Charge/Discharge Current

Apr 17, 2012 · Replies 14 · Apr 24, 2012

Replies: 14

Views: 6K

Discover the Future of Wearable Technology: Bluetooth Clothing Chip Design Tips

Apr 24, 2012 · Replies 2 · Apr 24, 2012

Replies: 2

Views: 2K

Isolating and Protecting Your Microcontroller and Motor with Shared Power Supply

Apr 24, 2012 · Replies 4 · Apr 24, 2012

Replies: 4

Views: 2K

Small GPS devices with long battery life

Apr 24, 2012 · Replies 1 · Apr 24, 2012

Replies: 1

Views: 2K

What is the reason behind inductive reactance in an AC circuit?

Apr 20, 2012 · Replies 35 · Apr 23, 2012

2

Replies: 35

Views: 15K

Punch Down Blocks (Telephony or Ethernet Cables)

Apr 20, 2012 · Replies 9 · Apr 23, 2012

Replies: 9

Views: 8K

Explaining reactive power on a subatomic level

Apr 22, 2012 · Replies 10 · Apr 23, 2012

Replies: 10

Views: 3K

Dielectric Barrier Discharge Plasma Discharge Circuit

Apr 23, 2012 · Replies 1 · Apr 23, 2012

Replies: 1

Views: 4K

Why Single-wire earth return systems are only used in rural areas?

Feb 21, 2012 · Replies 7 · Apr 23, 2012

Replies: 7

Views: 13K

Back to basics Current return path.

Apr 23, 2012 · Replies 8 · Apr 23, 2012

Replies: 8

Views: 17K

Power loss between the electricity meter and the building

Apr 23, 2012 · Replies 1 · Apr 23, 2012

Replies: 1

Views: 2K

Coilgun Design: Troubleshooting, Current & Coil Specs

Apr 23, 2012 · Replies 2 · Apr 23, 2012

Replies: 2

Views: 5K

The Mysteries of Laser Mouse Size & Design

Apr 22, 2012 · Replies 5 · Apr 23, 2012

Replies: 5

Views: 2K

Microcontroller kit beyond beginner

Apr 22, 2012 · Replies 5 · Apr 23, 2012

Replies: 5

Views: 3K

How is 350kV DC achieved from 220kV in HVDC systems?

Apr 15, 2012 · Replies 4 · Apr 23, 2012

Replies: 4

Views: 3K

Op amp transfer function incorporating output impedance

Apr 22, 2012 · Replies 2 · Apr 23, 2012

Replies: 2

Views: 3K

Learn Maxwell's Equations Intuitively & In-Depth with Book Suggestions

Jan 28, 2012 · Replies 5 · Apr 23, 2012

Replies: 5

Views: 2K

Transmitter uses radio waves or any type of waves

Apr 21, 2012 · Replies 19 · Apr 23, 2012

Replies: 19

Views: 3K

How Can I Design and Test Antennas Using HFSS? Guidance and Tips for Academia

Apr 15, 2012 · Replies 4 · Apr 23, 2012

Replies: 4

Views: 3K

Simple continuous tracking radar system with cantenna - how to get ranging info?

Apr 20, 2012 · Replies 2 · Apr 22, 2012

Replies: 2

Views: 4K

Is there any quantum mechanics in electrical engineering?

Jan 15, 2011 · Replies 20 · Apr 22, 2012

Replies: 20

Views: 26K

Can USB Cables & Ports Survive Over-Standard Voltage/Current?

Apr 21, 2012 · Replies 4 · Apr 22, 2012

Replies: 4

Views: 3K

What are some alternative methods for measuring waveforms in hardware testing?

Apr 21, 2012 · Replies 9 · Apr 22, 2012

Replies: 9

Views: 4K

Electrical engineering or mechanical engineering

Apr 17, 2012 · Replies 4 · Apr 22, 2012

Replies: 4

Views: 16K

3rd order harmonic distortion with PM alternator

Apr 22, 2012 · Replies 1 · Apr 22, 2012

Replies: 1

Views: 2K

Information about High Frequency Dielectrics

Apr 20, 2012 · Replies 9 · Apr 22, 2012

Replies: 9

Views: 2K

Identifying a Non-Linear Parameter Varying System

Apr 22, 2012 · Replies 1 · Apr 22, 2012

Replies: 1

Views: 1K

LTI Difference Equation from Impulse response

Apr 18, 2012 · Replies 12 · Apr 22, 2012

Replies: 12

Views: 11K

Ultrasonic actuator from Ceramic Phono Cartridge

Apr 20, 2012 · Replies 6 · Apr 22, 2012

Replies: 6

Views: 6K

Common Emitter Amplifier Analysis

Apr 20, 2012 · Replies 9 · Apr 21, 2012

Replies: 9

Views: 6K

LED Torch Heads for 12V Miniature Railway Signals

Apr 6, 2012 · Replies 9 · Apr 21, 2012

Replies: 9

Views: 3K

LPF Magnitude Slope: Why is it 20dB/Decade?

Apr 12, 2012 · Replies 4 · Apr 21, 2012

Replies: 4

Views: 5K

What are audio taper, linear taper, and reverse taper potentiometers?

Apr 20, 2012 · Replies 4 · Apr 21, 2012

Replies: 4

Views: 3K

Laplace plane meaning in control engineering ?

Apr 17, 2012 · Replies 6 · Apr 20, 2012

Replies: 6

Views: 5K

Quadrature sampling detector circuit

Apr 20, 2012 · Replies 1 · Apr 20, 2012

Replies: 1

Views: 5K

Physical Meaning of Leading/Lagging Voltage/Current

Jun 20, 2007 · Replies 38 · Apr 20, 2012

2

Replies: 38

Views: 61K

Is there a way to prevent T1 stress tests from keying all radios at once?

Apr 17, 2012 · Replies 2 · Apr 20, 2012

Replies: 2

Views: 2K

Understanding Electricity Waste: TV vs. Reality

Apr 20, 2012 · Replies 10 · Apr 20, 2012

Replies: 10

Views: 3K

How complex would it be to make a usb power source imitating small battery?

Apr 20, 2012 · Replies 11 · Apr 20, 2012

Replies: 11

Views: 3K

Circuit Design with Sensors-Your Advice Needed

Apr 19, 2012 · Replies 2 · Apr 20, 2012

Replies: 2

Views: 2K

Intrinsic carrier concentration formula

Apr 16, 2012 · Replies 1 · Apr 20, 2012

Replies: 1

Views: 19K

Computational electromagnetics books

Mar 9, 2012 · Replies 4 · Apr 20, 2012

Replies: 4

Views: 4K

Why circuit breaker shuts off when lamp burns out?

Apr 18, 2012 · Replies 4 · Apr 19, 2012

Replies: 4

Views: 5K

Is a transistor sensing circuit output analogue or digital?

Apr 18, 2012 · Replies 9 · Apr 19, 2012

Replies: 9

Views: 4K

What type of motor is best for a DIY ribbon cutting machine?

Apr 17, 2012 · Replies 4 · Apr 19, 2012

Replies: 4

Views: 4K

How do I properly charge a VRLA battery?

Apr 18, 2012 · Replies 2 · Apr 19, 2012

Replies: 2

Views: 3K

How to Derive Thévenin's Equivalent Circuit from Nodes a and b?

Apr 11, 2012 · Replies 4 · Apr 19, 2012

Replies: 4

Views: 3K

Solving the Solar Panel Debacle: Powering a 6V Battery with 4V Cells

Apr 14, 2012 · Replies 2 · Apr 19, 2012

Replies: 2

Views: 4K

Capacitor makes the circuit open?

Mar 30, 2012 · Replies 48 · Apr 19, 2012

2

Replies: 48

Views: 42K

Which component for momentary strobe trigger?

Apr 18, 2012 · Replies 1 · Apr 19, 2012

Replies: 1

Views: 3K

Physical Meaning of T's in Laplace equations

Apr 18, 2012 · Replies 1 · Apr 19, 2012

Replies: 1

Views: 2K

Wiring 100 LEDs - Advice Needed

Apr 17, 2012 · Replies 19 · Apr 18, 2012

Replies: 19

Views: 4K

Differential Readings upon Reversing Polarity on MEMS Gyroscope

Apr 18, 2012 · Replies 1 · Apr 18, 2012

Replies: 1

Views: 2K

Why does negative feedback stabilize an operational amplifier?

Apr 17, 2012 · Replies 6 · Apr 18, 2012

Replies: 6

Views: 9K

Protecting an LM324 Op-Amp in a Vacuum Tube Deflection Amplifier

Apr 17, 2012 · Replies 6 · Apr 18, 2012

Replies: 6

Views: 4K

Simple Circuit analysis of potentiometer problem

Apr 11, 2012 · Replies 4 · Apr 18, 2012

Replies: 4

Views: 7K

Electronic Oscillator: AC or DC Output?

Apr 17, 2012 · Replies 2 · Apr 17, 2012

Replies: 2

Views: 2K

Swamping in Satellite Communications

Apr 16, 2012 · Replies 8 · Apr 17, 2012

Replies: 8

Views: 8K

Issue w/ electric field definition

Apr 16, 2012 · Replies 1 · Apr 17, 2012

Replies: 1

Views: 2K

Is It Safe to Use a 250V Socket in a 277V Lighting Application?

Mar 29, 2012 · Replies 9 · Apr 17, 2012

Replies: 9

Views: 5K

Skin Effect and shape of conductor

Apr 15, 2012 · Replies 23 · Apr 17, 2012

Replies: 23

Views: 12K

Can a MOSFET be used to vary frequency in a function generator?

Apr 16, 2012 · Replies 4 · Apr 17, 2012

Replies: 4

Views: 4K

Fixing Wire Problem in Nim Game Design

Apr 16, 2012 · Replies 5 · Apr 17, 2012

Replies: 5

Views: 2K

How can i detenmine the size of generator fuel storage tank.?

Apr 17, 2012 · Replies 6 · Apr 17, 2012

Replies: 6

Views: 11K

Can We Harness Lightning to Generate Energy?

Feb 25, 2004 · Replies 55 · Apr 17, 2012

2

Replies: 55

Views: 34K

Boltzmann constant in formulas

Apr 16, 2012 · Replies 7 · Apr 16, 2012

Replies: 7

Views: 12K

FM Amplitude vs. Frequency Spectrum

Apr 16, 2012 · Replies 4 · Apr 16, 2012

Replies: 4

Views: 3K

Full Adder modified to make Full Subtractor

Apr 16, 2012 · Replies 2 · Apr 16, 2012

Replies: 2

Views: 27K

How Does Gate Resistance Rg Impact JFET Amplifier Performance?

Apr 8, 2012 · Replies 4 · Apr 16, 2012

Replies: 4

Views: 8K

Will 68A of 208V be on both phases?

Apr 15, 2012 · Replies 1 · Apr 16, 2012

Replies: 1

Views: 2K

A photocell device to light a small bulb

Apr 15, 2012 · Replies 5 · Apr 15, 2012

Replies: 5

Views: 2K

Calculating power of a permanent magnet DC generator

Aug 16, 2010 · Replies 9 · Apr 15, 2012

Replies: 9

Views: 36K

What is a frequency counter and how does it work

Apr 15, 2012 · Replies 1 · Apr 15, 2012

Replies: 1

Views: 4K

Confusion About Simple AM Radio Receiver/Tuner

Apr 15, 2012 · Replies 2 · Apr 15, 2012

Replies: 2

Views: 4K

In BJT Ie=Ib+Ic ; Ie-emitter current; Ib-base current; Ic-collector current

Apr 8, 2012 · Replies 4 · Apr 15, 2012

Replies: 4

Views: 22K

Question about single phase to three phase conversion

Apr 5, 2012 · Replies 35 · Apr 15, 2012

2

Replies: 35

Views: 21K

Characteristics of Ideal Operational Amplifiers

Apr 15, 2012 · Replies 7 · Apr 15, 2012

Replies: 7

Views: 6K

DIY DC to Sine Inverter Circuit with Adjustable Frequency and Amplitude

Apr 13, 2012 · Replies 2 · Apr 15, 2012

Replies: 2

Views: 2K

Voltage doubler and low load values

Apr 11, 2012 · Replies 9 · Apr 15, 2012

Replies: 9

Views: 6K

NPN question typo or my misunderstanding

Apr 14, 2012 · Replies 1 · Apr 14, 2012

Replies: 1

Views: 2K

Determining the transfer function of a humidity chamber

Mar 27, 2012 · Replies 2 · Apr 14, 2012

Replies: 2

Views: 6K

Blinking LED: do I use 555 or a flip flop?

Apr 8, 2012 · Replies 10 · Apr 14, 2012

Replies: 10

Views: 5K

If operating temperature in a data sheet is not given?

Apr 10, 2012 · Replies 5 · Apr 14, 2012

Replies: 5

Views: 2K

Capacitor auto-charge-discharge circuit

Apr 14, 2012 · Replies 1 · Apr 14, 2012

Replies: 1

Views: 4K

Is this transfer function unstable?

Apr 12, 2012 · Replies 6 · Apr 14, 2012

Replies: 6

Views: 11K

Capacitor for high current discharge

Apr 6, 2012 · Replies 5 · Apr 14, 2012

Replies: 5

Views: 6K

Thanks again.Identification Algorithm for Parameter-Varying System?

Apr 12, 2012 · Replies 2 · Apr 13, 2012

Replies: 2

Views: 2K

Question about single phase AC motors

Apr 5, 2012 · Replies 30 · Apr 13, 2012

2

Replies: 30

Views: 8K

Supercapacitor charging voltage?

Apr 7, 2012 · Replies 11 · Apr 13, 2012

Replies: 11

Views: 12K

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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