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

Making a poster with 5mm 2 pin LED lights.

  • yvesers
  • · Replies 1 ·
Replies
1

Is there a way to reduce no load power in a wireless cell phone charger?

  • oso0690
  • · Replies 8 ·
Replies
8

How to give speech a Donald duck effect?

  • dexterdev
  • · Replies 4 ·
Replies
4

Condition +-.1v from 2 wires to 0-5 for Arduino analog

  • zsawyer
  • · Replies 4 ·
Replies
4

Physical interpretation of j in E&M field equations

  • FrankJ777
  • · Replies 11 ·
Replies
11

Voltage ratings of Li-Ion batteries

  • ramonegumpert
  • · Replies 4 ·
Replies
4

Ideal Transformers and Lenz Law

  • p75213
  • · Replies 2 ·
Replies
2

How to alternate 2 flip flops with 2 clocks?

  • johny radio
  • · Replies 1 ·
Replies
1

How Do Time Domain Representations Compare in DSB-SC Modulation?

  • erece
  • · Replies 1 ·
Replies
1

How Can I Accurately Measure Temperature on Rotating ZrO2 Devices?

  • _maxim_
  • · Replies 10 ·
Replies
10

Cooker throttles when water boils

  • Enthalpy
  • · Replies 11 ·
Replies
11

Fermi level makes doped and undoped different?

  • Outrageous
  • · Replies 1 ·
Replies
1

How do I design a PI controller with unity DC gain?

  • glorimda
  • · Replies 4 ·
Replies
4

What is FFT Frequency Resolution?

  • Spimon
  • · Replies 4 ·
Replies
4

Reverse-Biased Diodes: Overheating, Spoilage, and Repair

  • Outrageous
  • · Replies 4 ·
Replies
4

Why aren't speaker cables Coaxial?

  • Stupid_Ben
  • · Replies 37 ·
2
Replies
37

Does a Magnet on a Fridge Affect Electricity?

  • ramonegumpert
  • · Replies 7 ·
Replies
7

Latest and Greatest PCB Design Software

  • branbailey9
  • · Replies 6 ·
Replies
6

Calculating resistance from a graph

  • JizzaDaMan
  • · Replies 7 ·
Replies
7

How to identify the state variables of a circuit?.

  • mt1200
  • · Replies 4 ·
Replies
4

Copper Plating Mystery: Solve the Puzzle!

  • Flyingwing12
  • · Replies 4 ·
Replies
4

Controlling line power with a 6V circuit using a relay.

  • fabiobollinge
  • · Replies 4 ·
Replies
4

What Makes NAND & NOR Gates Universal?

  • Avichal
  • · Replies 5 ·
Replies
5

Measuring Power in Simple Circuits

  • alvaro66
  • · Replies 8 ·
Replies
8

Circuit to randomly select and launch 1 of 10 soda cans without repeats

  • pieperz06
  • · Replies 2 ·
Replies
2

Can a relay handle both AC and DC power sources?

  • GiTS
  • · Replies 15 ·
Replies
15

Designing ECG Measurement & Calculations

  • samaaa
  • · Replies 9 ·
Replies
9

Calculate output voltage PNP/MOSFET

  • fraulein777
  • · Replies 4 ·
Replies
4

Guitar Pickups - Shapes of magnets used and their importance

  • MathsRetard09
  • · Replies 4 ·
Replies
4

Can a Series LC Circuit Effectively Drive MOSFET Gates?

  • Crazymechanic
  • · Replies 1 ·
Replies
1

Why does this NiMH solar charger work?

  • aniseed
  • · Replies 10 ·
Replies
10

Overcoming generator's counter torque?

  • Miyz
  • · Replies 18 ·
Replies
18

Oscillator / Power Amp circuit voltage swing problem

  • oso0690
  • · Replies 15 ·
Replies
15

CLIPPER CIRCUIT to clip of higher voltages without bias

  • Rohit Mallya
  • · Replies 5 ·
Replies
5

Inner product of complex numbrs

  • DmytriE
  • · Replies 4 ·
Replies
4

Electronic circuit/inductor problems

  • Phystudent91
  • · Replies 4 ·
Replies
4

Electric motor efficiency calculation

  • Nevalite
  • · Replies 1 ·
Replies
1

Is There Truly a DC Electric Motor or Generator?

  • Crazymechanic
  • · Replies 4 ·
Replies
4

Why is a current limiting resistor necessary in an LED circuit?

  • metiman
  • · Replies 10 ·
Replies
10

Practical use of a quarter wave transformer

  • FrankJ777
  • · Replies 4 ·
Replies
4

Why current will not flow in incomplete circuit?

  • Outrageous
  • · Replies 1 ·
Replies
1

Are There Ready-Made Amplifier Modules for 50A 50mV Current Shunts?

  • Jdo300
  • · Replies 4 ·
Replies
4

Which JK Flip Flop is Best for Simple State Machines Using a 9V Battery?

  • mistermotown
  • · Replies 5 ·
Replies
5

Zener diode application suggetions

  • mistermotown
  • · Replies 6 ·
Replies
6

Diagnose Copper Wire Winding Faults

  • thender
  • · Replies 5 ·
Replies
5

Can a Hydrogen-Cooled Generator Run on Air Instead?

  • IF007
  • · Replies 5 ·
Replies
5

MOSFET for High Frequency Low Current Application

  • akhurash
  • · Replies 1 ·
Replies
1

What is a CDD Camera? - FreLon vs Pilatus Detectors

  • poul
  • · Replies 2 ·
Replies
2

Did My Fan Sabotage My Guitar Amp? A Strange Discovery and Solution

  • yungman
  • · Replies 19 ·
Replies
19

How Do I Find the Peak Magnitude of H(jω) in a Circuit?

  • jean28
  • · Replies 1 ·
Replies
1
Replies
3

AC Current in unconnected wires

  • GingerLee
  • · Replies 9 ·
Replies
9

Rsoft-Beamprop-Multilayer waveguide

  • mariajacob
  • · Replies 2 ·
Replies
2

Is the Concept of Holes in Intrinsic Semiconductors Merely Imaginary?

  • Outrageous
  • · Replies 2 ·
Replies
2

Semiconductor (hole in conduction band)

  • Outrageous
  • · Replies 7 ·
Replies
7

Wire loop area induction sensor

  • flasherffff
  • · Replies 2 ·
Replies
2

Re: Why are transistor input and output impedances important?

  • Evilinside
  • · Replies 4 ·
Replies
4

Calculating Resistors for a Photocell Dark Switch Circuit

  • Jaron Wiley
  • · Replies 2 ·
Replies
2
Replies
2

What is grid voltage measured with respect to?

  • Fischer777
  • · Replies 5 ·
Replies
5

How are soundwaves sent via em waves?

  • jaydnul
  • · Replies 4 ·
Replies
4

Properties of Alternating Current

  • Outrageous
  • · Replies 14 ·
Replies
14

Best way to produce a 10-40kHz square wave

  • mtb856
  • · Replies 8 ·
Replies
8

Measuring voltage and current of rough DC

  • HHOboy
  • · Replies 7 ·
Replies
7

After Hurricane Sandy A Question about Electricity

  • Newtons Apple
  • · Replies 4 ·
Replies
4

Understanding LED Light Pipes: How They Work and Their Composition

  • likephysics
  • · Replies 8 ·
Replies
8
Replies
4

Can I define frequency for an non periodic signal?

  • snshusat161
  • · Replies 16 ·
Replies
16

V=0, I=0: Open or Short Circuit?

  • swayam007
  • · Replies 29 ·
Replies
29

How often do you study each night in EE undergrad? Weedays? Weekends?

  • moneyguest
  • · Replies 1 ·
Replies
1

A/C Electromagnet: Safety & Uses Explained

  • DkEnrgyFrk
  • · Replies 6 ·
Replies
6

Trying to run a treadmill motor without the controller

  • Ricka
  • · Replies 28 ·
Replies
28

Needing Tips for Electromagnetic Fields Class

  • Meadman23
  • · Replies 4 ·
Replies
4

Multiple in-phase AC sources to a load

  • funnyguy
  • · Replies 4 ·
Replies
4

Why Do We Use Mixers? - Explained

  • CraigH
  • · Replies 11 ·
Replies
11

Diff between binary digits and memory.

  • Celluhh
  • · Replies 6 ·
Replies
6

DC Motor Efficiency: Does It Change With Voltage?

  • mawad
  • · Replies 1 ·
Replies
1

Formulas for Transformer Calculations

  • tyir1839
  • · Replies 1 ·
Replies
1

Ideal Transformer current relationship and problems of B-H relationship

  • phwcssin
  • · Replies 1 ·
Replies
1
Replies
2

What is the difference between IC BT66 and UM66?

  • sandeepmrocks
  • · Replies 1 ·
Replies
1

So if FM radio signals modulate the frequency of the EM wave

  • jaydnul
  • · Replies 5 ·
Replies
5

Electric motor temperature sensor locations

  • geneiusxie
  • · Replies 1 ·
Replies
1

Relation between bandwidth and ssamplig rate

  • amaresh92
  • · Replies 4 ·
Replies
4

Connecting Different Adapters to Router: 2A vs 0.7A

  • asmani
  • · Replies 15 ·
Replies
15

Dielectric and Parallel Plate Capacitor, the point?

  • RadiantL
  • · Replies 4 ·
Replies
4

Modifying a 6-sided electronic dice circuit for 20-sided output

  • mishima
  • · Replies 2 ·
Replies
2

Neuron Electrical Model, time constant

  • mirumirai
  • · Replies 1 ·
Replies
1

Creating my own wireless communication system

  • Bipolarity
  • · Replies 8 ·
Replies
8

Use of high frequency in communication

  • amaresh92
  • · Replies 4 ·
Replies
4

Transformer output current question

  • johny radio
  • · Replies 2 ·
Replies
2

Efficient 30V 200A Pulse Circuit for Magnetizing Alnico 5 Magnets

  • trini
  • · Replies 25 ·
Replies
25

3 phase high current ripple suppression

  • chemnut220
  • · Replies 5 ·
Replies
5

Implementing microcontrollers (AT89C51-24PC)

  • Packocrayons
  • · Replies 18 ·
Replies
18

How do I find the the total Resistance?

  • MePhysica
  • · Replies 9 ·
Replies
9

Using Cramer's rule to solve circuit equations with current loops

  • MMhawk607
  • · Replies 4 ·
Replies
4
Replies
4
Replies
1

Purpose of 220Ω Resistor in Digital Input Circuit - Dan

  • fonz
  • · Replies 4 ·
Replies
4

Simulation aborted because there are errors during netlisting

  • jean28
  • · Replies 18 ·
Replies
18