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

How Could the Poulcen Arc Operate on Just 50 Volts?

  • Quentief
  • · Replies 21 ·
Replies
21

Semantic question on cell circuit symbol

  • etotheipi
  • · Replies 2 ·
Replies
2

Explosion of 74HC14 IC in Old Stock

  • trurle
  • · Replies 11 ·
Replies
11

Can't See Images? Troubleshoot Here!

  • phyq
  • · Replies 9 ·
Replies
9

What is the impact of distance on induction in electrical cables?

  • VAIVAW
  • · Replies 4 ·
Replies
4

What is causing the square drop in my guitar effect's sine wave?

  • danieluyter
  • · Replies 15 ·
Replies
15

How to correct for a Leading Power Factor (kVArh)

  • Harsh864
  • · Replies 9 ·
Replies
9

Potentially silly question re magnetism....

  • essenmein
  • · Replies 10 ·
Replies
10

Electric cars: What do you think?

  • neanderthalphysics
  • · Replies 117 ·
4
Replies
117

I tried to build a radio receiver

  • David lopez
  • · Replies 11 ·
Replies
11

I don't know how to use a buck converter....

  • David lopez
  • · Replies 11 ·
Replies
11

Troubleshooting PSPICE Errors: Tips for Simulating Your Graph Successfully

  • metennisman27
  • · Replies 3 ·
Replies
3

Calculating the flux density between two magnets

  • SteveDavies
  • · Replies 5 ·
Replies
5

Drawing Electric Arcs at 230 Volts

  • Quentief
  • · Replies 4 ·
Replies
4

Can cell electrodes in series share the same current collector?

  • Rich76
  • · Replies 7 ·
Replies
7

I tried to build a flyback converter

  • David lopez
  • · Replies 27 ·
Replies
27

Problem in identifying a short circuit in a diagram

  • Amaelle
  • · Replies 9 ·
Replies
9

How Does a CRT TV Work?

  • artis
  • · Replies 30 ·
2
Replies
30

Have a few outlets that test as a slightly dim open ground

  • swampwiz
  • · Replies 3 ·
Replies
3

Understanding and Tuning Non-Linear PID Controllers for UAVs

  • young_penguin
  • · Replies 3 ·
Replies
3

Can a Coiled Antenna Receive Radio Signals at 30 MHz?

  • David lopez
  • · Replies 26 ·
Replies
26

Why are my living room lights and outlets not working after resetting breakers?

  • DaveC426913
  • · Replies 12 ·
Replies
12

Intuitive way to understand ideal current and voltage amplifiers

  • Saptarshi Sarkar
  • · Replies 7 ·
Replies
7

What's the total amount of resistance in this kind of circuit?

  • Reneee
  • · Replies 4 ·
Replies
4

How Does Negative Feedback Affect System Stability?

  • paulmdrdo
  • · Replies 10 ·
Replies
10

Electromagnet Coil Performing Poorly

  • NathanSM
  • · Replies 17 ·
Replies
17

Comparison of Induction Heaters

  • some bloke
  • · Replies 2 ·
Replies
2

Is My Super Capacitor Power Bank Circuit Safe?

  • emtae55
  • · Replies 17 ·
Replies
17

Batteries: Is the current a diffusion current?

  • SchroedingersLion
  • · Replies 5 ·
Replies
5

Integrated circuits made with GaN HEMTs

  • ZeroFunGame
  • · Replies 6 ·
Replies
6

Relay and Capacitor circuit - blinking LED

  • fog37
  • · Replies 26 ·
Replies
26

Battery energy efficiency and Coulombic efficiency - what are they?

  • Rich76
  • · Replies 2 ·
Replies
2

Share: Pre 1935, Vintage Rotory Transformer

  • Kurtisinger
  • · Replies 23 ·
Replies
23

Using multiple alternators at once for a power source

  • Iga
  • · Replies 13 ·
Replies
13

On/Off Ratio Limits: Practical Lower Limit for Logic Functionality

  • ZeroFunGame
  • · Replies 24 ·
Replies
24

Threshold voltage shift vs temperature

  • ZeroFunGame
  • · Replies 16 ·
Replies
16

Carbon Microphone & Loudspeaker History: Chicken/Egg?

  • NTL2009
  • · Replies 20 ·
Replies
20

Some basic questions about a DC motor and a DC generator

  • PainterGuy
  • · Replies 18 ·
Replies
18

Induced/eddy current cancelation in a loop

  • artis
  • · Replies 26 ·
Replies
26

What are the limitations of using real transistors to build an ideal op-amp?

  • ZeroFunGame
  • · Replies 4 ·
Replies
4

Why are Mod-10 & Mod-5 decade counters while Mod-6 & Mod-8 not?

  • Wrichik Basu
  • · Replies 10 ·
Replies
10

Motor/generator solenoid armature

  • Joseph M. Zias
  • · Replies 1 ·
Replies
1

Exploring 8K vs 4K: How to Choose the Right TV Size

  • bhobba
  • · Replies 7 ·
Replies
7

What current would a 12 V lead-acid battery draw from a 24 V charger

  • Jonathan212
  • · Replies 22 ·
Replies
22

How to start LM317 regulator from 0 Volts

  • Mohammed Ayaz Quadri
  • · Replies 13 ·
Replies
13

I'd like to find a power bank circuit with 2.7V input

  • emtae55
  • · Replies 4 ·
Replies
4

Looking for software to help me make electromagnets

  • MIKESMIND
  • · Replies 19 ·
Replies
19

What is the role of AlGaN in GaN HEMTs?

  • ZeroFunGame
  • · Replies 1 ·
Replies
1

Does stacking mylar dielectric film reduce it's breakdown voltage?

  • BrandonBerchtold
  • · Replies 2 ·
Replies
2

Trying to calculate the peak current of a Capacitor bank

  • johnboyman
  • · Replies 15 ·
Replies
15

Power, current, voltage transfer principles

  • fog37
  • · Replies 10 ·
Replies
10

Si IGBT and SiC MOSFET comparison

  • ZeroFunGame
  • · Replies 1 ·
Replies
1

Subthreshold slope and transconductance

  • ZeroFunGame
  • · Replies 2 ·
Replies
2

What voltage/current/power meter do you use in your (hobby) projects?

  • HomeExperiement
  • · Replies 2 ·
Replies
2

"Class-B" Audio Power Amp with "Current Pumping"

  • AlexCaledin
  • · Replies 26 ·
Replies
26

Suggestion for a gas discharge lamp

  • Nirmal Padwal
  • · Replies 18 ·
Replies
18

Stability of an open loop controller

  • icesalmon
  • · Replies 3 ·
Replies
3

Why do powerplants sell electricity for a negative price?

  • ConradG
  • · Replies 10 ·
Replies
10

Eddy currents in an Aluminum substrate PCB

  • Rive
  • · Replies 7 ·
Replies
7

Transmission line resonator

  • Esquer
  • · Replies 7 ·
Replies
7

How can I wire a bipolar stepper motor to switches for my laser engraver?

  • Scottydntno
  • · Replies 11 ·
Replies
11

Why Does My Treadmill Start at Full Speed Then Stop?

  • rahulkhajuria
  • · Replies 6 ·
Replies
6

Do soft errors still occur in today's machines?

  • Muhammad Usman
  • · Replies 4 ·
Replies
4

Cost of a 50 km range RC system & Type of Antenna

  • mastermechanic
  • · Replies 12 ·
Replies
12

Obtaining the series and shunt resistance of a photodiode from the datasheet

  • louisnach
  • · Replies 3 ·
Replies
3

Technology behind the small jump-starters for cars?

  • Stephen Tashi
  • · Replies 8 ·
Replies
8

Basics of RF coil development for MRI

  • Leonid92
  • · Replies 11 ·
Replies
11

What happens when electric current is distributed in the material?

  • Another
  • · Replies 5 ·
Replies
5

How Does Lenz's Law Apply to Induction Motors?

  • PainterGuy
  • · Replies 7 ·
Replies
7

Understanding Radio Bands: Amplitude & Frequency

  • revv
  • · Replies 45 ·
2
Replies
45

Adiabatic switching time of a filament lamp

  • PGRacer
  • · Replies 8 ·
Replies
8

I have been trying to create an air-core electromagnet with no luck

  • NathanSM
  • · Replies 76 ·
3
Replies
76

Why do the phases of a motor spin the rotor?

  • kolleamm
  • · Replies 2 ·
Replies
2

Using a capacitor for RFI protection

  • Charlie Cheap
  • · Replies 8 ·
Replies
8

How exactly does a turbine convert mechanical energy into electrical?

  • AdrianGriff
  • · Replies 8 ·
Replies
8

Thermal radiation in CMOS transistors

  • Johnny5454
  • · Replies 20 ·
Replies
20

How does an antenna work with harmonics?

  • David lopez
  • · Replies 5 ·
Replies
5

How does a Capacitor protect against voltage spikes?

  • Muhammad Usman
  • · Replies 28 ·
Replies
28

Electromagnetic Induction -- Insane Idea

  • TateTheL
  • · Replies 15 ·
Replies
15

Help with a control system for a hydroelectric tank

  • hdp12
  • · Replies 3 ·
Replies
3

Freeware for Nanoantenna Calculation

  • abeeba
  • · Replies 1 ·
Replies
1

Optimizing Insulator Spacing for High Strength Busbar Systems

  • Ivan001
  • · Replies 10 ·
Replies
10

How can I effectively suppress Poisson noise in my data?

  • arcTomato
  • · Replies 19 ·
Replies
19

What is the Sun's energy content at the Earth's equator?

  • royp
  • · Replies 7 ·
Replies
7

How to calculate the inductance of a center tapped solenoid ?

  • Indula
  • · Replies 5 ·
Replies
5

Convert Lux to RGB: 4 Values to RGB/Hex Color

  • noknow
  • · Replies 11 ·
Replies
11

Troubleshooting a Boost Converter Circuit

  • David lopez
  • · Replies 36 ·
2
Replies
36

Units of Fourier Transform (CTFT) vs spectral density

  • amama
  • · Replies 2 ·
Replies
2

Tesla cybertruck is it a good electric vehicle

  • ZebulonPrime
  • · Replies 15 ·
Replies
15

Introductory Circuit Analysis—power ratings

  • JessicaHelena
  • · Replies 6 ·
Replies
6

How to convert 1 frequency to a lower frequency?

  • David lopez
  • · Replies 8 ·
Replies
8

Description of a telemetry transmitter

  • senmeis
  • · Replies 6 ·
Replies
6

Circuit design question -- 100% transistor functionality needed?

  • ZeroFunGame
  • · Replies 16 ·
Replies
16

Voltage between two points on an empty wire and also across a resistor

  • funmi
  • · Replies 12 ·
Replies
12

How to build a radio relay station?

  • David lopez
  • · Replies 19 ·
Replies
19

How Does Amplitude Modulation Work in Radio Transmission?

  • revv
  • · Replies 5 ·
Replies
5

The power spectrum of Poisson noise

  • arcTomato
  • · Replies 7 ·
Replies
7

What is the Relative Permeability of Iron in a Solenoid?

  • Mason98
  • · Replies 6 ·
Replies
6

Infrared Lamp vs Red Heat Lamp: What's the Difference?

  • carter7gindenv
  • · Replies 4 ·
Replies
4

Why Does My FFT Integration Method Produce Nonzero Imaginary Parts?

  • SchroedingersLion
  • · Replies 8 ·
Replies
8