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 to calculate the groundness

  • pixel01
  • · Replies 6 ·
Replies
6

Converting Thermal Conductivity to Thermal Conduction/Resistance

  • hamzaaaa
  • · Replies 4 ·
Replies
4

Why Does Neutral & Ground Short Together in AC Circuits?

  • monus76
  • · Replies 2 ·
Replies
2

Transistor Switch for R2R Ladder DAC Circuit

  • khaing071
  • · Replies 6 ·
Replies
6

Need help to build long range IR transmitter

  • aruna1
  • · Replies 12 ·
Replies
12

What are the differences between alternators, generators, and dynamos?

  • davidcowling
  • · Replies 6 ·
Replies
6

What Are the Unexplored Frontiers in Electromagnetism and Electricity?

  • Skynt
  • · Replies 1 ·
Replies
1

Schematics of cell phone jammer and small and simple walkie talkie

  • Ibn-ul-hathim
  • · Replies 2 ·
Replies
2

Identifying Unknown Transistors: G9012 & sts9014c

  • m718
  • · Replies 1 ·
Replies
1

Stepper motor stepping uniformity

  • StealthRay
  • · Replies 4 ·
Replies
4

LED Light Array: Why Several Small Ones vs One Large?

  • FulhamFan3
  • · Replies 6 ·
Replies
6

Design an Ammeter - Know How to Measure Current

  • cks
  • · Replies 2 ·
Replies
2

Eliminating Power Line Noise in Sensitive Equipment for Scientists

  • 0xDEADBEEF
  • · Replies 18 ·
Replies
18

Troubleshooting Enamel Coating for High-Amp Transformer Windings

  • microfracture
  • · Replies 6 ·
Replies
6

Difference Between Analog and Digital Technology

  • modulus
  • · Replies 5 ·
Replies
5

What is the difference between a solid state relay and a semiconductor

  • Josh111
  • · Replies 1 ·
Replies
1

555 Oscillator Frequency Fluctuating Rapidly

  • saad87
  • · Replies 10 ·
Replies
10

How Can I Design a Powerful Yet Low-Power Electromagnetic Lock?

  • felix_cat
  • · Replies 41 ·
2
Replies
41

Buttons activating by touching a wire

  • Briant22
  • · Replies 4 ·
Replies
4

Quick query regarding voltage sources

  • agrocadabra
  • · Replies 6 ·
Replies
6

How can i figure the current loss of a power supply?

  • seetherulez
  • · Replies 6 ·
Replies
6
Replies
3

Op Amp Current Supply - Is 3 Amps Too Much?

  • m718
  • · Replies 7 ·
Replies
7

Half Power frequencies for a parallel RLC circuit

  • kthouz
  • · Replies 12 ·
Replies
12

Anyone can help me about solar energy, discussion only

  • jolvski
  • · Replies 3 ·
Replies
3

How to caculate the needed capacity of the SD flash memory card

  • mz8e08
  • · Replies 4 ·
Replies
4
Replies
8

Hi therei need to know when capacitor is used in A.C CIRCUIT

  • monus76
  • · Replies 2 ·
Replies
2

Electrical Systems questions (wind turbines)

  • davidcowling
  • · Replies 8 ·
Replies
8

Programming light sensors for robot

  • DrDanger
  • · Replies 3 ·
Replies
3
Replies
1

Questions on Loudspeaker Diaphragm Movement

  • rockerboi
  • · Replies 13 ·
Replies
13

Which Wattage Resistor is Best for a Noiseless Filter Design?

  • m718
  • · Replies 3 ·
Replies
3

Cascading two HF photo-amplification stages (opamp-based)

  • nitin.jain
  • · Replies 20 ·
Replies
20

Replacing LM324N with Better Opamp

  • m718
  • · Replies 1 ·
Replies
1

More Questions about Protective Relays

  • Josh111
  • · Replies 2 ·
Replies
2

Ohm's Law: Resistance, Voltage, & Current

  • DrDanger
  • · Replies 2 ·
Replies
2

Troubleshooting Low Current Charge Transfer Circuit

  • Ravaner
  • · Replies 12 ·
Replies
12

What is the difference between emf and voltage?

  • sphyics
  • · Replies 9 ·
Replies
9

Improve SNR Microphone Amplifier: Opamp Tips

  • m718
  • · Replies 10 ·
Replies
10

Removing grounding plug from cord - stupid, but illegal?

  • KingNothing
  • · Replies 6 ·
Replies
6

Can I Safely Use 3.16 Amps with My AC/DC Laptop Power Supply?

  • hover
  • · Replies 2 ·
Replies
2

Ohmic Losses In Capacitor Discharge

  • axi0m
  • · Replies 8 ·
Replies
8

Piezos like pvdf's can be fabricated as a rod rather than a strip?

  • Nick Bruno
  • · Replies 2 ·
Replies
2

Why Did Turning Off My Heater Silence My YouTube Video?

  • imiyakawa
  • · Replies 1 ·
Replies
1

Using a MOSFET and comparator together as a switch

  • Shinnog
  • · Replies 3 ·
Replies
3

Engineering Project Ideas for Final Year: Zigbee & DTMF

  • suresh2588
  • · Replies 1 ·
Replies
1

How to change a manual knob to BNC connector

  • TChi
  • · Replies 16 ·
Replies
16

Cleaning Rod lenses in optics equipment

  • xusmee
  • · Replies 6 ·
Replies
6

Problem with air core transformer

  • Idea04
  • · Replies 4 ·
Replies
4

What is the Short Circuit Capacity for a 24 kW 3-Phase Generator?

  • Josh111
  • · Replies 4 ·
Replies
4

Simulated many preamps from the web on TINA

  • m718
  • · Replies 3 ·
Replies
3

How Does Electric Power Generation Work?

  • NotoriousNick
  • · Replies 1 ·
Replies
1

Generator loss of exitation protection

  • Josh111
  • · Replies 1 ·
Replies
1

Paralleled Generator Protection

  • Josh111
  • · Replies 9 ·
Replies
9

Voltage source -> Ideal switch -> Resistance = Reactive power

  • foges
  • · Replies 3 ·
Replies
3
Replies
38

Why Do Compact Fluorescent Lamps Striate When Connected to Dimmer Circuits?

  • NotoriousNick
  • · Replies 1 ·
Replies
1
Replies
3

Why classical gates are irreversible?

  • markoX
  • · Replies 3 ·
Replies
3

Switcing DC on an off repeatedly 'laymans question'

  • Robin07
  • · Replies 3 ·
Replies
3

What are load calculations for a transformer?

  • shaibaaz3
  • · Replies 3 ·
Replies
3

Signal that is a sine wave plus an offset

  • 0xDEADBEEF
  • · Replies 8 ·
Replies
8

Constant output voltage from a variable output voltage source

  • _HL4E_HalfLife_
  • · Replies 3 ·
Replies
3

Where Can I Find Small Ferrite Bobbin Cores for Prototype Projects?

  • pinchy911
  • · Replies 1 ·
Replies
1

RF testing: Balistics Gel for human analog?

  • fizz_it
  • · Replies 5 ·
Replies
5

Is a Career in Digital Signal Processing Right for You?

  • Blade_Runner
  • · Replies 8 ·
Replies
8

Parallel Capacitors: Do I Need a Resistor for Simulation?

  • m718
  • · Replies 2 ·
Replies
2

Finding the Right Filter for -140 dB 60 Hz Attenuation

  • m718
  • · Replies 18 ·
Replies
18

ANSYS for MEMS (Especially Electrostatic)

  • jstippey
  • · Replies 7 ·
Replies
7

E field profile in a capacitor with two different dielectric material

  • enroger0
  • · Replies 2 ·
Replies
2

Calculating Charge Density in Fluids

  • Shelnutt2
  • · Replies 10 ·
Replies
10

How to reproduce a battery with a power supply

  • cougarrcsnva
  • · Replies 2 ·
Replies
2

Mutual Inductance (Two coils connected in parallel to source)

  • jake.davidoff
  • · Replies 4 ·
Replies
4

Circuit diagram for a power supply that outputs about 25kv

  • wolram
  • · Replies 17 ·
Replies
17

Smoothing Half Wave AC Voltage with Inductor - Any Ideas?

  • ws0619
  • · Replies 2 ·
Replies
2

Starting a 12V DC Motor: Do You Need a Rheostat or Face-Plate Starter?

  • StealthRay
  • · Replies 4 ·
Replies
4

Question About Current Transformers

  • Josh111
  • · Replies 8 ·
Replies
8

Help with 38khz ir transmitter using multivibrator

  • aruna1
  • · Replies 11 ·
Replies
11

Advice on building a 1.4T electromagnet

  • ephedyn
  • · Replies 10 ·
Replies
10

Inductor or Ballast: What Does Choke Mean?

  • monus76
  • · Replies 1 ·
Replies
1
Replies
1

Understanding Superconducting Energy Storage: Principles and Applications

  • Mr 4738
  • · Replies 6 ·
Replies
6

Electromechanical considerations

  • Pythagorean
  • · Replies 8 ·
Replies
8

Calculating wire lenght for an air core inductor

  • Robin07
  • · Replies 12 ·
Replies
12

Optical mouse into pen tablet. How?

  • johnsmi
  • · Replies 3 ·
Replies
3

Calculating magnetomotive force in a transformer

  • bitrex
  • · Replies 1 ·
Replies
1

Capacitor Charger | LED Illuminate when Complete

  • axi0m
  • · Replies 7 ·
Replies
7

Circular Polarization: Explaining \beta z in Electric Field

  • jeff1evesque
  • · Replies 3 ·
Replies
3

2 known signals, 1 PSD: extract components with same phase.

  • sodemus
  • · Replies 20 ·
Replies
20

2 inputs to one headset control

  • noagname
  • · Replies 8 ·
Replies
8

Current sensor needed to monitor solar cell while cell is being used.

  • Tedesh
  • · Replies 11 ·
Replies
11

Comparing Plasma TV and LCD: Is There a Difference?

  • sniffer
  • · Replies 10 ·
Replies
10

How to prevent wiring mistakes?

  • Jez09
  • · Replies 12 ·
Replies
12
Replies
4

Question on Back emf generated by motor

  • mag4gen
  • · Replies 7 ·
Replies
7

What Is the Vacuum Level of a CRT TV?

  • FlufferNuterFSU
  • · Replies 5 ·
Replies
5

Electrolyte capacitor in circuit simulators like TINA and nl5?

  • m718
  • · Replies 1 ·
Replies
1

How Do You Design an Electromagnet to Attract a Disk from 15cm Away?

  • sbotzer
  • · Replies 14 ·
Replies
14

Help in choosing project topic(very )

  • ravi235332
  • · Replies 1 ·
Replies
1