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 does an open collector work?

  • nothing909
  • · Replies 8 ·
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8

Does a 50Hz or 60Hz voltage source deliver more power to a 1 ohm resistor?

  • Passionate Eng
  • · Replies 2 ·
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2

Arduino Syntax problem ('else' without a previous 'if')

  • helofrind
  • · Replies 3 ·
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3

Power factor correction (capacitor in parallel with inductive load)

  • FionaZJ
  • · Replies 10 ·
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10

Why do FT and DTFT use different frequency variables?

  • npit
  • · Replies 1 ·
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1

Can I Use a Frequency Synthesizer to Create a 28.8MHz Clock Signal?

  • Tom48
  • · Replies 9 ·
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9

Isolation Transformer: Why Load Connects to Primary Side

  • HP-
  • · Replies 2 ·
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2

Looking for LT for three or more parallel aiding inductors

  • Chris Fuccillo
  • · Replies 1 ·
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1

AC Parallel Circuit: Current In-Phase with Voltage?

  • FionaZJ
  • · Replies 2 ·
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2

How to calculate the wattage needed

  • Scott Sperbeck
  • · Replies 7 ·
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7

Engineering Math: Laplace Transform

  • whatphysics
  • · Replies 5 ·
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5

What is the effect on audio of using larger wattage resistor

  • Planobilly
  • · Replies 7 ·
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7

I want to replace an AC motor with a DC motor

  • ws309
  • · Replies 8 ·
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8

Controlling force and speed of a linear actuator with AC motor and VFD

  • ramzerimar
  • · Replies 7 ·
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7

Quality control testing for an electrical product

  • Davd_C
  • · Replies 1 ·
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1

How to read the code on vintage ceramic capacitors

  • Planobilly
  • · Replies 15 ·
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15

Apparent Power vs Complex Power: Understand the Difference

  • FionaZJ
  • · Replies 4 ·
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4
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5

Microcontroller/optoisolator interface

  • nothing909
  • · Replies 14 ·
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14

Solving simultaneous equations with complex numbers and phasors

  • whatphysics
  • · Replies 9 ·
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9
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6

Difference between radio transmission technologies

  • knight92
  • · Replies 8 ·
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8

Can you tell me if this amp design will work

  • Planobilly
  • · Replies 6 ·
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6

Ultra thin silver and gold foil

  • rppearso
  • · Replies 6 ·
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6

How can I get my insurance to cover full replacement after lightening damage?

  • Isaac Olson
  • · Replies 2 ·
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2

Voltage divider with offset

  • Rx7man
  • · Replies 25 ·
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25

What amount of amperage do i need for electrolysis of water?

  • Ali Durrani
  • · Replies 9 ·
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9

Powerbank for Bicycle: Charging a Li Ion Battery with Varying Current

  • Akmalidin
  • · Replies 3 ·
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3

Current of Phasor going in CCW direction

  • smstepanic
  • · Replies 3 ·
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3

Semantics of "Can we store electricity?"

  • Sorade
  • · Replies 6 ·
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6

Synchronous generator under load

  • cnh1995
  • · Replies 5 ·
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5

How Does Earthing Work in Electrical Systems?

  • cnh1995
  • · Replies 3 ·
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3

Optimal location of receiver on a transmission line

  • Mike Vines
  • · Replies 12 ·
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12

Kalman Filter States: What Do They Represent?

  • Guillem
  • · Replies 1 ·
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1
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13

RMS value secondary voltage electronic halogen transformer

  • Merlion
  • · Replies 1 ·
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1

Semi-controlled full rectifier output voltage going to zero

  • jendrix
  • · Replies 9 ·
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9

High Voltage LED Solution for 4.2A Circuit

  • btb4198
  • · Replies 8 ·
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8

Completely solar powered engine -- is my design good?

  • caters
  • · Replies 6 ·
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6

How to Log Continuous Peak-to-Peak Voltage Changes on an Oscilloscope?

  • rwooduk
  • · Replies 1 ·
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1

Harmonic sources, flowing from load, why?

  • OliskaP
  • · Replies 5 ·
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5

Will these two brushed DC motors reach the same RPM

  • William123
  • · Replies 13 ·
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13

Where is the RLC circuit time constant"2L/R" coming from?

  • garylau
  • · Replies 10 ·
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10

Why do different 12 inch guitar speakers produce different feedback levels?

  • Planobilly
  • · Replies 3 ·
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3

ZigZag transformer and harmonics

  • KraakeCrest
  • · Replies 2 ·
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2

Resulting magnetic flux in the core of a transformer

  • HeleneFR
  • · Replies 3 ·
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3

Fitting a thermocouple to a motor

  • Marky32
  • · Replies 5 ·
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5

Battery temperature while charging

  • Akmalidin
  • · Replies 3 ·
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3

Is Using Oversized Wire for a Cooktop Safe and Up to Code?

  • Hotwire73
  • · Replies 4 ·
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4

How can a Tesla run for so long?

  • Jakeeis
  • · Replies 5 ·
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5

Can capacitors receive EM energy?

  • Narayanan KR
  • · Replies 12 ·
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12

Can Bluetooth improve GPS accuracy on mobile devices?

  • Ez4u2cit
  • · Replies 7 ·
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7

Motors in series: how do you stop one motor from spinning?

  • sfensphan
  • · Replies 6 ·
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6

Thermistors calculation of base resistance

  • physocs1
  • · Replies 3 ·
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3
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25

Why wind turbines don't have their dynamos closer to ground?

  • kevin_tee
  • · Replies 7 ·
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7

A general transistor switching circuit question

  • Planobilly
  • · Replies 24 ·
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24

Split clock signal (provided by oscillator)

  • Tom48
  • · Replies 4 ·
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4

Current Rating of an AC Generator

  • Sent
  • · Replies 2 ·
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2

Can an Outlet Checker Ensure Proper Grounding of Electrical Wiring?

  • chaddey
  • · Replies 2 ·
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2

Alternating Current, live and neutral wires

  • maximus123
  • · Replies 5 ·
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5

How Do You Build a Functional Leyden Jar for a School Project?

  • chaddey
  • · Replies 3 ·
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3

Issues with my investigation in capacitance

  • Filippo Ficarra
  • · Replies 7 ·
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7

How a remote controlled car know which button is pressed?

  • anandzoom
  • · Replies 3 ·
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3

Can I Use AC to Power DC LED Light Bars for Stage Production?

  • Matt2623478600
  • · Replies 13 ·
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13

Transmisison Line Shunt Capacitance

  • yabb dabba do
  • · Replies 6 ·
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6

EMF generated by solenoid around hollow Iron core?

  • CJSpankey
  • · Replies 5 ·
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5

I need to make or buy a insulated wire Mesh

  • 13Nike
  • · Replies 13 ·
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13

Why Does Constant DC Current Not Imply Changing Electron Velocity?

  • yabb dabba do
  • · Replies 3 ·
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3

Use of solid materials as medium for data transfer

  • member 607966
  • · Replies 11 ·
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11

EM waves and traditional method of transmission

  • Jackson Lee
  • · Replies 13 ·
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13

Why does radio reception change drastically at dawn and dusk?

  • anorlunda
  • · Replies 5 ·
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5

How do I rewire AC power distribution to match my desired setup?

  • Denny Lai
  • · Replies 15 ·
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15

Synopsys ICC: cell stats and post route netlist from mwlib

  • reddvoid
  • · Replies 1 ·
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1

Why Does the Skin Effect Not Reverse into a Core Effect in AC Conductors?

  • Jackson Lee
  • · Replies 8 ·
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8

How to identify series and parallel elements in circuits

  • dlacombe13
  • · Replies 8 ·
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8

Current, B, E field directions on line in TEM mode

  • yabb dabba do
  • · Replies 1 ·
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1

Critical bending radius of optical fibres

  • OrangeYogi
  • · Replies 3 ·
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3

Can the Poynting Vector Be Applied to DC Current?

  • Jackson Lee
  • · Replies 2 ·
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2

Building a 1956 Fender Deluxe replica with Porsche seat cover cloth

  • Planobilly
  • · Replies 5 ·
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5

Modeling E and B field of power lines

  • yabb dabba do
  • · Replies 2 ·
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2

Why do zero sequence currents circulate inside delta transformer windings?

  • KraakeCrest
  • · Replies 11 ·
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11

Number Guessing circuit -- I in creating this circuit

  • Vincci
  • · Replies 3 ·
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3

Any Fluke fans out there? (Fluke 87-V DVM questions)

  • Guineafowl
  • · Replies 7 ·
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7

Question about voltage polarity and power

  • Logical Dog
  • · Replies 6 ·
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6

How does flow of current result in sound?

  • Logical Dog
  • · Replies 7 ·
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7

Optical Bandpass filter specification

  • OrangeYogi
  • · Replies 2 ·
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2

Using Hall effect sensor to measure RPM on brushed DC motor

  • DarkBabylon
  • · Replies 5 ·
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5

Position of brushes on the commutator in a DC generator

  • Axe199
  • · Replies 5 ·
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5

Checking stability at closed-loop -3dB bandwidth instead of 0dB crossover

  • yungman
  • · Replies 2 ·
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2

Sending a Number Over Wifi: Energy Requirements

  • akahn430
  • · Replies 3 ·
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3

Super small electronic variable resistor -- Exists?

  • MeaningfromForm
  • · Replies 43 ·
2
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43

Why does AM need a carrier wave if two close frequencies produce beats?

  • LLT71
  • · Replies 19 ·
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19

Small solar panel large toy car

  • pug
  • · Replies 4 ·
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4

Continuous and discrete spectra

  • Domenico94
  • · Replies 4 ·
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4

What is the purpose of Electro-Optical Modulator (EOM)?

  • OrangeYogi
  • · Replies 1 ·
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1

Home furnace different leg voltage

  • Joey30
  • · Replies 9 ·
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9

Why does VCEsat increase with collector current in a saturated BJT?

  • Genji Shimada
  • · Replies 6 ·
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6

MOSFET linear mode and saturation conditions

  • Genji Shimada
  • · Replies 1 ·
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1

Why is my custom microwave transformer producing inconsistent voltage?

  • RED119
  • · Replies 5 ·
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5