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

Difference between emitter and collector?

  • iScience
  • · Replies 16 ·
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16

How to switch on and off capacitance on a piece of conducting material?

  • dmehling
  • · Replies 10 ·
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10

Mini Projectors: Powering Up & Finding the Right Supply

  • Kasim
  • · Replies 7 ·
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7

Wireless Alternatives to LVDT probes?

  • tectactoe
  • · Replies 2 ·
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2

How is a flat coil polarized in comparison to a linear coil?

  • Vengeance187
  • · Replies 3 ·
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3

How to Discuss Grade Discrepancies with Your Professor

  • ches18
  • · Replies 3 ·
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3

Data acquisition on torque sensor

  • Trainee28
  • · Replies 3 ·
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3

A couple inverting op-amp questions

  • jaydnul
  • · Replies 7 ·
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7
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4

Can Reliable Data Transfer Be Guaranteed in Communication Networks?

  • Bipolarity
  • · Replies 3 ·
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3
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5

What does a leading/lagging angle mean on the grid?

  • powermarketguy
  • · Replies 5 ·
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5

Calculating power needed to heat 32 gauge kanthal wire to 320-430°F

  • devinA
  • · Replies 3 ·
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3

How to use current feedback in the same circuit in Cadence

  • dafaq
  • · Replies 3 ·
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3

Designing a 3 Phase AC Generator

  • Entrepreneur
  • · Replies 3 ·
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3

Thevenin's & Kirchhoff's law, in a circuit

  • ahmed markhoos
  • · Replies 6 ·
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6

"Black sun" effect in CMOS sensors

  • AlexVM
  • · Replies 6 ·
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6

Energy from bike riding used to charge phones/laptops

  • Drewdc90
  • · Replies 6 ·
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6

How to arrange/draw circuit diagram from fixed resistances

  • Dependent
  • · Replies 14 ·
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14

Speakers, loudness, and electrical input

  • Steven Ellet
  • · Replies 4 ·
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4

Wave Generator with Crystal Quartz Oscillator?

  • QuantumLollipop
  • · Replies 9 ·
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9

Confusion about voltage in a circuit

  • x86
  • · Replies 47 ·
2
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47

Magnetic Gloves for scaling skyscrapers

  • Sasha Voinov
  • · Replies 6 ·
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6

Effects of emitter capacitor in the BJT CE amplifiers

  • Clear Mind
  • · Replies 22 ·
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22

Tap Changing (ULTC) Transformers and Reactive Power Control

  • powereng
  • · Replies 1 ·
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1

Anyone amateur radio ops here have experience with end fed HF antennas?

  • Averagesupernova
  • · Replies 10 ·
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10

Why is high input impedance and low output impedance desirable?

  • Clear Mind
  • · Replies 10 ·
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10
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6

Power Supply voltage drop issue

  • dwn
  • · Replies 23 ·
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23

Charge-Sensitivity in Preamplifier

  • dlbi
  • · Replies 5 ·
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5

Problems with ground with batteries

  • Kerso1991
  • · Replies 1 ·
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1

Plotting of relay current curves

  • Physicist3
  • · Replies 1 ·
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1

EM waves generated by an oscilating dipole phase difference

  • mpapachristou
  • · Replies 2 ·
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2

Static Electricity corrupting electrical equipment

  • p.daly
  • · Replies 3 ·
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3

How can I control the speed of an electric motor for a turning table?

  • Salem
  • · Replies 12 ·
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12

Who has experience with AD8333 to demodulate a square wave?

  • bouyang
  • · Replies 11 ·
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11

Correct electric charge/current flow & left/right hand rule?

  • Alex Mercer
  • · Replies 6 ·
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6

Calculating Output Voltage from Single Photon Detected by H9500 PMT

  • miss_physics
  • · Replies 8 ·
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8

Why is the voltage across one resistor the same as supply?

  • x86
  • · Replies 22 ·
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22

PID Controller: Order, Stability & Labview

  • Darren93
  • · Replies 5 ·
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5

Shielding & ground loop for audio

  • Krack
  • · Replies 13 ·
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13

Finding Thevenin and Norton equivalents with resistor grouping

  • TwinCamGTS
  • · Replies 6 ·
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6

Full-wave Rectifier - Mathematical approach

  • etf
  • · Replies 1 ·
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1

Finding Reactance from System Fault Level

  • Physicist3
  • · Replies 1 ·
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1

How do voltage and current combine to determine electrical power?

  • polekitten
  • · Replies 3 ·
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3

Capacitance of an asymmetrical parallel plate capacitor

  • nickexists
  • · Replies 4 ·
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4

Making a solar cell phone charger

  • eddie90
  • · Replies 4 ·
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4

How can we distinguish between different types of PCB?

  • chandans
  • · Replies 2 ·
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2

Battery circuit, but using ground rather than negative pole?

  • Joakim
  • · Replies 9 ·
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9

Differentiator/Integrator circuits: Op-amp vs RLC circuits

  • Bipolarity
  • · Replies 5 ·
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5

Resource explaining circuit design (for newbies)

  • Joakim
  • · Replies 2 ·
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2

PID controller for current control by adjusting the PWM

  • Hubert Tchio
  • · Replies 13 ·
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13

How do transformers work and how do toroidal transformers differ?

  • FeynmanFtw
  • · Replies 3 ·
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3

Which Motor Driver IC is Best for Interfacing 4 DC Motors in an RC Car?

  • Nilay Gala
  • · Replies 1 ·
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1

Lorentz force system, what to expect?

  • PhiowPhi
  • · Replies 8 ·
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8

Does a constant magnetic field cause a current?

  • x86
  • · Replies 1 ·
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1

Maxwell ansoft region effect to solve

  • mehrad
  • · Replies 3 ·
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3

How autotransformer can be used as a starter

  • Walli Bhatti
  • · Replies 4 ·
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4

Highest possible AC frequency possible today?

  • Jason White
  • · Replies 9 ·
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9
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7

Electrons and Consequences of Conservation Laws

  • nDever
  • · Replies 4 ·
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4

Phase Delay Changes with Physical Length Changes

  • jasonleroy
  • · Replies 4 ·
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4

How to control the speed of 1.5 Volt motor?

  • prasahant
  • · Replies 4 ·
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4

How to Calculate Resistance Values for a Phototransistor Circuit?

  • yaasir
  • · Replies 1 ·
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1

How to make/find USB Bracelet with programmable buttons?

  • LongApple
  • · Replies 4 ·
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4

Odd multimeter readings with AC->DC wall adapter

  • Nugatory
  • · Replies 8 ·
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8

Speed regulator for accesibility step

  • Hoppo
  • · Replies 3 ·
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3

How to design a rpm and torque indicator from a fan?

  • dennis12
  • · Replies 2 ·
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2

What Causes Fields to Fringe?

  • suhaib shdaifat
  • · Replies 1 ·
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1

How to charge a low amperage battery?

  • James125
  • · Replies 2 ·
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2

Max Output Power of 9 Phase Alternator

  • KuriousKid
  • · Replies 16 ·
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16

Planetary Electromagnetic Field

  • bodykey
  • · Replies 3 ·
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3

Unstable System: Pole in Right Half - Why?

  • ranju
  • · Replies 3 ·
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3
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3

ESD Standards for Components & Systems: HBM, CDM & Automotive Testing

  • likephysics
  • · Replies 2 ·
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2

What does negative voltage mean for MOSFET?

  • andrew700andrew
  • · Replies 18 ·
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18

Attempting to fix my treadmill

  • ShibSta
  • · Replies 8 ·
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8
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7

Troubleshooting a PWM Circuit Design

  • billy fok
  • · Replies 2 ·
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2

How TVs Detect Plugged-In Headphones

  • jaydnul
  • · Replies 11 ·
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11

How Does Wireless Power Transmission Work?

  • Hood
  • · Replies 35 ·
2
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35

Induction Cooking, skin effect, hysteresis losses

  • yoamocuy
  • · Replies 1 ·
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1

RMS in AC Circuits: Why Use Square for Mean Values?

  • joel amos
  • · Replies 1 ·
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1

How to generate a pulsed signal on a function generator?

  • jeffderbiber
  • · Replies 1 ·
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1

Induction cooking & heat distribution

  • meeotch1
  • · Replies 2 ·
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2

High Frequency signal with fast risetime, its bandwidth

  • Geeniey
  • · Replies 7 ·
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7
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2
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7

How to clasify if it's an inverting/non-inverting op amp

  • xconwing
  • · Replies 33 ·
2
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33

Reverse engineering the Twilight Soundscape Generator sound

  • btb4198
  • · Replies 7 ·
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7

How to calculate flux and linkage in coupled inductors and transformers

  • tim9000
  • · Replies 26 ·
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26

Low voltage Low heat, battery powered heater

  • nmeeker87
  • · Replies 8 ·
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8

How can the unit of H and J be different?

  • Tesla Gwon
  • · Replies 2 ·
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2

Sum of currents in protection relay

  • Vist17
  • · Replies 1 ·
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1

Someone know a bit about Generators? (windmill project)

  • Wilhelm Blich
  • · Replies 2 ·
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2

AC current through AC equipment

  • RAHIL008
  • · Replies 14 ·
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14

Inverter high cost vs low cost performance difference

  • dingpud
  • · Replies 2 ·
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2

How Does Frequency Affect a Circuit with Capacitors and Inductors?

  • Electro_vass
  • · Replies 8 ·
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8

Is there a way to keep an LED turned on even when the power source is off?

  • andrew700andrew
  • · Replies 2 ·
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2

Understanding a Colpitts oscillator

  • DrDu
  • · Replies 18 ·
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18