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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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A different angle of Why do you need a line 2 on an AC circuit?

Jul 17, 2020 · Replies 13 · Jul 17, 2020

Replies: 13

Views: 2K

Wireless routers vs. microwave ovens

Jun 26, 2020 · Replies 72 · Jul 15, 2020

3

Replies: 72

Views: 7K

Problems figuring out this inductance formula

Jul 11, 2020 · Replies 7 · Jul 12, 2020

Replies: 7

Views: 2K

Function of this piece in a loudspeaker?

Jul 9, 2020 · Replies 13 · Jul 11, 2020

Replies: 13

Views: 2K

Building a three phase motor -- figuring out how many poles

Jun 28, 2020 · Replies 22 · Jul 8, 2020

Replies: 22

Views: 6K

Not able to get the desired output frequency using a Wein Bridge Oscillator

Jun 4, 2020 · Replies 24 · Jul 8, 2020

Replies: 24

Views: 3K

Can Superconducting Cables Overcome AC Transmission Distance Limits?

Jul 6, 2020 · Replies 2 · Jul 6, 2020

Replies: 2

Views: 2K

Dr. Middlebrook's "Technical Therapy For Analog Circuit Designers"

Jul 5, 2020 · Replies 4 · Jul 6, 2020

Replies: 4

Views: 2K

Alternator Field Winding Question

Jul 3, 2020 · Replies 3 · Jul 5, 2020

Replies: 3

Views: 3K

Understanding 5G Beamforming Using Phased Arrays

Jul 1, 2020 · Replies 5 · Jul 4, 2020

Replies: 5

Views: 2K

Rewiring of a stator - The math behind it

Jul 3, 2020 · Replies 1 · Jul 3, 2020

Replies: 1

Views: 2K

The RPM of Dyson DC04 vacuum motor and more....

Jun 28, 2020 · Replies 6 · Jul 3, 2020

Replies: 6

Views: 2K

Rotating waveguide antenna (rotating marine radar)

Jun 28, 2020 · Replies 34 · Jul 2, 2020

2

Replies: 34

Views: 5K

The REAL difference between a Galvanometer and an Ammeter

Jul 1, 2020 · Replies 6 · Jul 2, 2020

Replies: 6

Views: 2K

How Do You Calculate Forces when The Lorentz Force Doesn't Seem to Apply?

May 21, 2020 · Replies 26 · Jul 1, 2020

Replies: 26

Views: 3K

RLC-circuits where phasor diagrams don't work

Jun 25, 2020 · Replies 6 · Jun 30, 2020

Replies: 6

Views: 2K

Ladder-like bandpass filter theoretical analysis problem

May 18, 2020 · Replies 20 · Jun 30, 2020

Replies: 20

Views: 2K

The Lorentz Force Law Can be Completely Inaccurate

Jun 26, 2020 · Replies 1 · Jun 27, 2020

Replies: 1

Views: 1K

Need to use a rectifier.... but where to put it?

Jun 27, 2020 · Replies 7 · Jun 27, 2020

Replies: 7

Views: 2K

What Could Be Causing My 3 Phase Motor to Lack Power and Torque?

Jun 17, 2020 · Replies 23 · Jun 26, 2020

Replies: 23

Views: 7K

How does electron speed affect electric power?

Jun 21, 2020 · Replies 11 · Jun 26, 2020

Replies: 11

Views: 2K

Connecting Two 30x10mm2 Earth Busbars: Min. Conductor Cross Section

Jun 25, 2020 · Replies 2 · Jun 25, 2020

Replies: 2

Views: 1K

DIY Continuity Tester: Increase Sensitivity | Matt

Jun 25, 2020 · Replies 1 · Jun 25, 2020

Replies: 1

Views: 2K

Physical/conceptual reason for inductor voltage step response

Jun 22, 2020 · Replies 4 · Jun 24, 2020

Replies: 4

Views: 2K

Specific Absorption Rate(SAR) - caused from radio frequency from mobile phones

Jun 15, 2020 · Replies 11 · Jun 20, 2020

Replies: 11

Views: 2K

What does this DC motor supply do?

Jun 13, 2020 · Replies 9 · Jun 13, 2020

Replies: 9

Views: 2K

The important non-fundamental electrical components?

Jun 11, 2020 · Replies 13 · Jun 13, 2020

Replies: 13

Views: 2K

Long Distance Wireless Power Transmission

Jun 11, 2020 · Replies 8 · Jun 12, 2020

Replies: 8

Views: 2K

Are ISFETS available for cheap or am I out of luck

May 29, 2020 · Replies 7 · Jun 11, 2020

Replies: 7

Views: 1K

Signal classification and processing for a gesture sensor module

Jun 11, 2020 · Replies 7 · Jun 11, 2020

Replies: 7

Views: 2K

How to estimate the measurement uncertainty of an oscilloscope ?

Jun 10, 2020 · Replies 6 · Jun 11, 2020

Replies: 6

Views: 3K

GridTie Synchronous Generation Project Using Carbon Neutral Flare Gas

Jun 9, 2020 · Replies 9 · Jun 10, 2020

Replies: 9

Views: 1K

Is a 1 Ohm reading normal for a cold 12 volt thermistor?

Jun 8, 2020 · Replies 14 · Jun 9, 2020

Replies: 14

Views: 3K

Transformer Coupled Class A amplifier Single supply

May 26, 2020 · Replies 3 · Jun 7, 2020

Replies: 3

Views: 2K

Building a DIY multimeter for my school project

Jun 3, 2020 · Replies 9 · Jun 5, 2020

Replies: 9

Views: 3K

Effect of doping concentration on the depletion width of p-n junction diodes

May 29, 2020 · Replies 11 · Jun 2, 2020

Replies: 11

Views: 3K

Designing a DC Motor Torsional Spring Circuit with Arduino Uno

May 27, 2020 · Replies 12 · Jun 1, 2020

Replies: 12

Views: 3K

DC generator: Induced EMF of a single coil armature

May 31, 2020 · Replies 3 · May 31, 2020

Replies: 3

Views: 2K

How Are Materials for Infrared Sensors Selected and Developed?

May 30, 2020 · Replies 1 · May 30, 2020

Replies: 1

Views: 1K

Building RF Noise Generator Circuit w/ LM324D SMD Op Amp

May 20, 2020 · Replies 12 · May 30, 2020

Replies: 12

Views: 4K

Homemade solenoids and professional solenoids

May 24, 2020 · Replies 15 · May 28, 2020

Replies: 15

Views: 4K

Which Circuit Breaker Switch to Turn?

May 27, 2020 · Replies 6 · May 28, 2020

Replies: 6

Views: 1K

How does regenerative braking vary the load?

May 24, 2020 · Replies 11 · May 26, 2020

Replies: 11

Views: 2K

Safe to charge a Lithium Battery with a Voltage Limit?

May 24, 2020 · Replies 2 · May 25, 2020

Replies: 2

Views: 2K

What is the metallic circular component in this voltage sensor?

May 15, 2020 · Replies 7 · May 25, 2020

Replies: 7

Views: 1K

Build Your Own AC Generator: How to Create 2V for an LED

May 24, 2020 · Replies 10 · May 24, 2020

Replies: 10

Views: 2K

Question about electrical networks

May 23, 2020 · Replies 11 · May 24, 2020

Replies: 11

Views: 2K

Why Not Stack Busbars?

May 18, 2020 · Replies 13 · May 20, 2020

Replies: 13

Views: 2K

Is Wall-Mounted Solar Production More Efficient in Winter at High Latitudes?

May 16, 2020 · Replies 15 · May 20, 2020

Replies: 15

Views: 2K

Pass current to "burn" stray vias?

May 13, 2020 · Replies 14 · May 18, 2020

Replies: 14

Views: 1K

I need a controller for this 25kW DC Brushless Motor

May 15, 2020 · Replies 6 · May 18, 2020

Replies: 6

Views: 2K

What is the meaning of "Long time maximum output current ≥ 1.5 A"?

May 16, 2020 · Replies 5 · May 17, 2020

Replies: 5

Views: 2K

Transformer without separate primary and secondary windings....

May 17, 2020 · Replies 14 · May 17, 2020

Replies: 14

Views: 3K

Concentric coils for power generation

May 16, 2020 · Replies 3 · May 17, 2020

Replies: 3

Views: 2K

DC Motor "TACHO ERROR": Solutions & Causes

May 15, 2020 · Replies 3 · May 16, 2020

Replies: 3

Views: 3K

Why this Simple Watt Meter for a 220 Volt Circuit works?

May 12, 2020 · Replies 4 · May 15, 2020

Replies: 4

Views: 2K

Why can't a 2 pole ac induction motor run a 6 pole induction generator

May 13, 2020 · Replies 4 · May 14, 2020

Replies: 4

Views: 2K

DIY wideband antenna VSWR - beginner

May 11, 2020 · Replies 8 · May 13, 2020

Replies: 8

Views: 3K

Need help with a parallel inductance calculation for this transformer

May 10, 2020 · Replies 2 · May 10, 2020

Replies: 2

Views: 2K

EMF below Power Transmission Lines

May 9, 2020 · Replies 2 · May 9, 2020

Replies: 2

Views: 2K

Home experiment - 'seeing' magnetic lines of force?

May 7, 2020 · Replies 6 · May 9, 2020

Replies: 6

Views: 2K

KCL got declined in Norton circuit of an ideal amplifier circuit

Apr 28, 2020 · Replies 12 · May 7, 2020

Replies: 12

Views: 2K

Bare Metal Programming for Beginners

May 2, 2020 · Replies 10 · May 6, 2020

Replies: 10

Views: 3K

MOSFET Transistors as Switches

May 5, 2020 · Replies 5 · May 5, 2020

Replies: 5

Views: 2K

How Do SCRs, Thyristors, and GTOs Work for Bidirectional Switching?

May 3, 2020 · Replies 8 · May 5, 2020

Replies: 8

Views: 2K

Need replacement advise for KA3525A IC

Apr 29, 2020 · Replies 4 · Apr 30, 2020

Replies: 4

Views: 5K

Exploring LRC AC Series Circuits

Apr 27, 2020 · Replies 25 · Apr 29, 2020

Replies: 25

Views: 3K

Grounding conductor connected to grounded conductor

Apr 25, 2020 · Replies 32 · Apr 29, 2020

2

Replies: 32

Views: 4K

A question about battery powered cars

Nov 16, 2019 · Replies 10 · Apr 29, 2020

Replies: 10

Views: 2K

Ferrite Cores on the output cable of a VFD

Apr 27, 2020 · Replies 4 · Apr 29, 2020

Replies: 4

Views: 6K

Silent DC Motor for Automatic Watch Winder | Feasibility Study Stage

Apr 27, 2020 · Replies 17 · Apr 29, 2020

Replies: 17

Views: 2K

Why does a thyristor keep conducting after removing the gate current?

Apr 28, 2020 · Replies 5 · Apr 28, 2020

Replies: 5

Views: 2K

Calculating the Efficiency, total output power and irradiance of LEDs

Apr 25, 2020 · Replies 2 · Apr 26, 2020

Replies: 2

Views: 2K

How do I properly charge my LIPO battery?

Apr 25, 2020 · Replies 11 · Apr 25, 2020

Replies: 11

Views: 2K

Problem with PMSM motor model in Simulink

Apr 25, 2020 · Replies 1 · Apr 25, 2020

Replies: 1

Views: 2K

AC motor rotary capacitor soft start

Apr 24, 2020 · Replies 5 · Apr 25, 2020

Replies: 5

Views: 2K

Is the Indian National Power Grid in danger?

Apr 3, 2020 · Replies 16 · Apr 25, 2020

Replies: 16

Views: 2K

Anyone have a light bulb blow up?

Apr 7, 2020 · Replies 30 · Apr 24, 2020

2

Replies: 30

Views: 5K

Background EMF levels abnormally high?

Apr 17, 2020 · Replies 18 · Apr 23, 2020

Replies: 18

Views: 7K

Starting Torque of Synchronous Motors

Apr 7, 2020 · Replies 6 · Apr 21, 2020

Replies: 6

Views: 3K

Electrical frequencies that are NOT harmful to people

Apr 18, 2020 · Replies 17 · Apr 21, 2020

Replies: 17

Views: 2K

Giving a jump start to a car - how does the circuit become complete?

Feb 19, 2020 · Replies 61 · Apr 18, 2020

3

Replies: 61

Views: 11K

Op-amp Oscillator Circuit Design (10-50 MHz)

Apr 17, 2020 · Replies 6 · Apr 18, 2020

Replies: 6

Views: 3K

Do AC generators make use of interpoles?

Jan 18, 2018 · Replies 4 · Apr 16, 2020

Replies: 4

Views: 2K

DC Motor Overspeed: Cause & Effect

Apr 13, 2020 · Replies 24 · Apr 16, 2020

Replies: 24

Views: 5K

What is the difference between PCM and quantization?

Apr 16, 2020 · Replies 3 · Apr 16, 2020

Replies: 3

Views: 1K

What Happens if 2K2 & 2K3 Close Simultaneously?

Apr 15, 2020 · Replies 1 · Apr 16, 2020

Replies: 1

Views: 1K

RS flip flop -- Replacing a NOR gate with an OR gate

Apr 10, 2020 · Replies 5 · Apr 14, 2020

Replies: 5

Views: 1K

Baseline Recovery time of Shaper Amplifier output

Apr 10, 2020 · Replies 3 · Apr 13, 2020

Replies: 3

Views: 1K

Why will 240 volt condenser kill me but not 7,000 volt electric fence?

Apr 8, 2020 · Replies 47 · Apr 11, 2020

2

Replies: 47

Views: 11K

Signal Speed Below the Speed of Light for Circuit Abstraction

Apr 8, 2020 · Replies 8 · Apr 11, 2020

Replies: 8

Views: 2K

Could you show me a super capacitor's charging circuit? :(

Apr 10, 2020 · Replies 2 · Apr 10, 2020

Replies: 2

Views: 1K

Permanent magnets and "permeance"

Apr 8, 2020 · Replies 10 · Apr 9, 2020

Replies: 10

Views: 2K

What is the negative sign in Faraday's Law/EMF with respect to?

Apr 9, 2020 · Replies 2 · Apr 9, 2020

Replies: 2

Views: 1K

Can a superconductor "repel" an electromagnet due to the Meissner effect?

Apr 6, 2020 · Replies 2 · Apr 7, 2020

Replies: 2

Views: 2K

Space vector modulation, motor control, implementation question

Apr 3, 2020 · Replies 2 · Apr 6, 2020

Replies: 2

Views: 2K

Voltage drop in a PCB power plane

Apr 3, 2020 · Replies 28 · Apr 6, 2020

Replies: 28

Views: 4K

Running a Raspberry Pi with a Solar Panel

Apr 2, 2020 · Replies 7 · Apr 5, 2020

Replies: 7

Views: 2K

Halbach array arrangement for a transformer

Oct 29, 2019 · Replies 26 · Apr 5, 2020

Replies: 26

Views: 4K

Would there be a smartphone today without Einstein's discoveries?

Apr 1, 2020 · Replies 40 · Apr 5, 2020

2

Replies: 40

Views: 5K

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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