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...

Threads

Are These for Retro Fans? Let's Find Out!

  • Sami1999
  • · Replies 7 ·
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7

Is My ESP32-Cam + PIR Sensor + FTDI Assembly Correct According to Diagram?

  • julianorodrigues0316
  • · Replies 7 ·
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7

LG 42PQ30R plasma TV no picture with fluctuating Ysus voltages

  • brainbaby
  • · Replies 6 ·
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6

How to calculate magnetic braking force?

  • dishwasher95
  • · Replies 14 ·
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14

1500W inverter powers on briefly then overload LED triggers

  • Guineafowl
  • · Replies 54 ·
2
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54

Switching scheme in an inverter

  • cnh1995
  • · Replies 18 ·
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18

Why do AC motors pull high amps when they go bad?

  • timmeister37
  • · Replies 7 ·
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7

Synchronous Generator PMG Rotor Damaged

  • vish1711
  • · Replies 6 ·
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6

Gigawatts and beyond solid-state Terahertz generators/oscillators

  • Rev. Cheeseman
  • · Replies 7 ·
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7

Charging 18650 Batteries for Safe Setup and Usage

  • Biycchu
  • · Replies 13 ·
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13

Could you check this Li-ion charging circuit?

  • emtae55
  • · Replies 20 ·
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20
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5

Accounting for mutual inductance in a Hartley Oscillator

  • cianfa72
  • · Replies 10 ·
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10

Trouble working with LC circuits

  • johnboyman
  • · Replies 6 ·
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6

How to get maximal power output from solar panels in reality

  • Mayan Fung
  • · Replies 11 ·
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11

What Causes the Audio and Video to be Out of Sync on MSNBC Programs?

  • Buzz Bloom
  • · Replies 16 ·
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16

Capacitive soil moisture sensor using TLC555

  • akaliuseheal
  • · Replies 14 ·
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14

Why does VBE stay near 0.7V in a silicon BJT instead of increasing?

  • JC2000
  • · Replies 16 ·
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16

Are integrated CTs any different from CTs in clamp meters?

  • HomeExperiement
  • · Replies 23 ·
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23

Why Might a Halbach Array Simulation Differ from Actual Measurements?

  • StudentonaOdyssey
  • · Replies 8 ·
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8

What percentage of heat is generated from LED lighting?

  • Howlin
  • · Replies 5 ·
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5

Why must current return instantaneously in AC circuits?

  • timmeister37
  • · Replies 27 ·
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27

Noninverting op amp doesn't work on a highly resistive load

  • mlamont1
  • · Replies 31 ·
2
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31

Difference in these two concepts of Magnetic Torque

  • Physicslearner500039
  • · Replies 4 ·
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4

Force on a current carrying conductor

  • Physicslearner500039
  • · Replies 6 ·
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6

Arcing in electrical relay contacts due to different types of loads

  • srinaath
  • · Replies 11 ·
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11

How can I safely energize a suspect alternator

  • Grinkle
  • · Replies 16 ·
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16

Couple Questions about this Resistor Datasheet

  • Abdullah Almosalami
  • · Replies 4 ·
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4

Electrical conduction through air

  • mdaugird
  • · Replies 26 ·
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26

Voltage and current from solar and wind sources to charge controller

  • SeaDawg
  • · Replies 4 ·
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4
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49

Where is the demodulator in this AM receiver?

  • Boltzman Oscillation
  • · Replies 12 ·
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12

Relation between electric motor and battery current, peak etc.

  • Jon Zimmer
  • · Replies 3 ·
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3

Using a low voltage supply in a class B amplifier

  • brainbaby
  • · Replies 25 ·
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25

What approach should be used when solving a circuit?

  • Boltzman Oscillation
  • · Replies 56 ·
2
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56

What is the significance of using U/2I in four point probe theory?

  • ScieneShines
  • · Replies 4 ·
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4

Voltage Substractor simple circuit

  • Helena Wells
  • · Replies 31 ·
2
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31

Shutting down Sony camera when tractor battery power is removed

  • gumby4231
  • · Replies 7 ·
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7

Fundamentals of the PN Junction

  • TJonline
  • · Replies 12 ·
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12

Diffusion current and carrier concentration equilibrium (unbiased)

  • halleff
  • · Replies 1 ·
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1

Help with COMSOL nanoparticle simulation

  • Abrar
  • · Replies 8 ·
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8

Good LED bulb will not work in a socket

  • ILoveDeoxit
  • · Replies 21 ·
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21

How to determine UV lamp dosage values of 10-20 mJ/cm2

  • Secan
  • · Replies 5 ·
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5

Buck Converter with USB-C output

  • gumby4231
  • · Replies 2 ·
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2

Designing an off-grid electrical system for a camper van

  • earthandgnar
  • · Replies 5 ·
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5

Encasing an electronic prototype

  • gumby4231
  • · Replies 8 ·
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8

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

  • timmeister37
  • · Replies 13 ·
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13

Wireless routers vs. microwave ovens

  • kevinisfrom
  • · Replies 72 ·
3
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72

Problems figuring out this inductance formula

  • johnboyman
  • · Replies 7 ·
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7

Function of this piece in a loudspeaker?

  • NTL2009
  • · Replies 13 ·
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13

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

  • johnboyman
  • · Replies 22 ·
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22

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

  • handyman123
  • · Replies 24 ·
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24

Can Superconducting Cables Overcome AC Transmission Distance Limits?

  • kevinisfrom
  • · Replies 2 ·
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2

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

  • Joseph M. Zias
  • · Replies 4 ·
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4

Alternator Field Winding Question

  • doubledipsoon
  • · Replies 3 ·
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3

Understanding 5G Beamforming Using Phased Arrays

  • kevinisfrom
  • · Replies 5 ·
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5

Rewiring of a stator - The math behind it

  • Luchekv
  • · Replies 1 ·
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1

Fitting an axial fan to a Dyson DC04 motor shaft

  • royp
  • · Replies 6 ·
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6

How does a rotating marine radar antenna work?

  • artis
  • · Replies 34 ·
2
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34

The REAL difference between a Galvanometer and an Ammeter

  • jaumzaum
  • · Replies 6 ·
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6
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26

RLC-circuits where phasor diagrams don't work

  • Lars278
  • · Replies 6 ·
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6

Ladder-like bandpass filter theoretical analysis problem

  • room_
  • · Replies 20 ·
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20

The Lorentz Force Law Can be Completely Inaccurate

  • Keasy
  • · Replies 1 ·
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1

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

  • HelloCthulhu
  • · Replies 7 ·
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7

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

  • Rx7man
  • · Replies 23 ·
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23

How does electron speed affect electric power?

  • Aakash Sunkari
  • · Replies 11 ·
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11

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

  • Ivan001
  • · Replies 2 ·
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2

Increasing sensitivity of a DIY continuity tester for high resistance

  • mattyboson12
  • · Replies 1 ·
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1

Physical/conceptual reason for inductor voltage step response

  • halleff
  • · Replies 4 ·
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4

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

  • Aeronautic Freek
  • · Replies 11 ·
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11

What does this DC motor supply do?

  • sophiecentaur
  • · Replies 9 ·
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9

The important non-fundamental electrical components?

  • Boltzman Oscillation
  • · Replies 13 ·
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13

Long Distance Wireless Power Transmission

  • WonderfulWorld
  • · Replies 8 ·
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8

Finding affordable ISFET transistors for pH measurement

  • Boltzman Oscillation
  • · Replies 7 ·
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7

Signal classification and processing for a gesture sensor module

  • Lord Crc
  • · Replies 7 ·
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7

How to estimate the measurement uncertainty of an oscilloscope ?

  • nordmoon
  • · Replies 6 ·
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6

GridTie Synchronous Generation Project Using Carbon Neutral Flare Gas

  • looking
  • · Replies 9 ·
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9

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

  • Kriis
  • · Replies 14 ·
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14

Transformer Coupled Class A amplifier Single supply

  • paulmdrdo
  • · Replies 3 ·
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3

Building a DIY multimeter for my school project

  • Projecthelp243454
  • · Replies 9 ·
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9

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

  • Ahsan Khan
  • · Replies 11 ·
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11

Designing a DC Motor Torsional Spring Circuit with Arduino Uno

  • HadenWilly
  • · Replies 12 ·
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12

DC generator: Induced EMF of a single coil armature

  • kidsasd987
  • · Replies 3 ·
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3

How Are Materials for Infrared Sensors Selected and Developed?

  • Science Man
  • · Replies 1 ·
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1

Building RF Noise Generator Circuit w/ LM324D SMD Op Amp

  • hilbert2
  • · Replies 12 ·
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12

Homemade solenoids and professional solenoids

  • paradisePhysicist
  • · Replies 15 ·
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15

Which Circuit Breaker Switch to Turn?

  • kyphysics
  • · Replies 6 ·
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6

How does regenerative braking vary the load?

  • noagname
  • · Replies 11 ·
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11

Safe to charge a Lithium Battery with a Voltage Limit?

  • NTL2009
  • · Replies 2 ·
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2

What is the metallic circular component in this voltage sensor?

  • Wrichik Basu
  • · Replies 7 ·
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7

Why does my 4-coil AC generator only produce 1V with phase shift issues?

  • papercace
  • · Replies 10 ·
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10

Is the sum of edge currents bounded in resistor networks?

  • neverevernever
  • · Replies 11 ·
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11

Why Not Stack Busbars?

  • Ivan001
  • · Replies 13 ·
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13
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15

Pass current to "burn" stray vias?

  • f95toli
  • · Replies 14 ·
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14

I need a controller for this 25kW DC Brushless Motor

  • kolleamm
  • · Replies 6 ·
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6

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

  • Wrichik Basu
  • · Replies 5 ·
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5

Transformer with tapped primary winding as output terminals

  • Wrichik Basu
  • · Replies 14 ·
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14

Concentric coils for power generation

  • samstergurl
  • · Replies 3 ·
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3