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 EMF Induce in a Solenoid Despite Minimal Flux Cutting?

  • QwertyXP
  • · Replies 3 ·
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3

Transformer equivalent circuit open and closed circuit test

  • xdeimos
  • · Replies 2 ·
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2

Shorting the Ends of a Mobile Phone Charger

  • QwertyXP
  • · Replies 3 ·
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3

Why does an ohmmeter read total parallel resistance?

  • bibo_dvd
  • · Replies 3 ·
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3

Solving Op Amp Confusion with PWM Circuit

  • jafferrox
  • · Replies 3 ·
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3

Can electric trains charge capacitors with only a positive supply wire?

  • Crazymechanic
  • · Replies 5 ·
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5

How to Connect a Live Feed Video Camera for Full Face Helmets - Iron Patriot

  • IronPatriot
  • · Replies 1 ·
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1

How Do Inductors and Back EMF Influence DC Motor Behavior?

  • perplexabot
  • · Replies 1 ·
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1

Infrared phototransistor to infrared thermometer

  • Moses Freeman
  • · Replies 7 ·
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7

How to compensate for voltage drop across a diode?

  • dano1005
  • · Replies 5 ·
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5

Induction coils and contact materials

  • HollyH
  • · Replies 3 ·
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3

Current flow and speed control in magnetic Levitation

  • FerN61
  • · Replies 1 ·
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1

Can H-Bridge Control be Used for Switching Magnetic Feet on a Robot?

  • bond007
  • · Replies 2 ·
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2

What would happen if I were close to a powerful transmitter?

  • oneamp
  • · Replies 23 ·
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23

Circuit Design Struggle - Diagram and Breadboard Setup

  • USC_ME
  • · Replies 22 ·
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22

Open Loop Representation of Closed Loop System

  • QwertyXP
  • · Replies 5 ·
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5

Audio amplifier physical noise+possible popped capacitor

  • Bassalisk
  • · Replies 10 ·
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10

Invention of Alternating Current

  • Nugso
  • · Replies 10 ·
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10

Inductance: Why Does Di/Dt Represent Current?

  • xdeimos
  • · Replies 2 ·
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2

Can a Multi-Position Solenoid be Created with a Permanent Magnet Core?

  • oronymo
  • · Replies 6 ·
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6

Measuring magnetic fields Will motors and metal frame interfere?

  • engi845
  • · Replies 5 ·
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5

How to measure AC line frequency from mains

  • kriscpm
  • · Replies 12 ·
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12

Why Won't My Verilog Code Synthesize in Xilinx?

  • freezer
  • · Replies 2 ·
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2
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6

Why do the americans use a 60Hz system, rather than 50Hz?

  • Physicist3
  • · Replies 8 ·
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8

Why boundary condition in steady electric current?

  • mai fouad
  • · Replies 1 ·
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1

Differential Equation for a Wien Bridge Oscillator

  • d.arbitman
  • · Replies 16 ·
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16

Calculating voltage drops in cables with vectors?

  • EVriderDK
  • · Replies 1 ·
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1

(Finite Impulse Response)FIR filter math by hand example

  • btb4198
  • · Replies 2 ·
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2

Voltage vs Fractional Resistance

  • mearvk
  • · Replies 8 ·
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8

Sample and hold capacitor not holding charge with 130nm MOS switches

  • Lanot
  • · Replies 22 ·
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22

Ac coupling and offset voltage in amplifier

  • sandy.bridge
  • · Replies 8 ·
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8

Quick connector for 24V 4-conductor 24 AWG LED panel cable

  • 2slowtogofast
  • · Replies 5 ·
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5

What is the suitable capacitor value for a three level flying capacitor?

  • JermziePV
  • · Replies 5 ·
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5

What are these mysterious structures on wireless chipsets?

  • Andy Resnick
  • · Replies 2 ·
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2

Convert the output of a small geophone

  • Kleinar
  • · Replies 5 ·
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5
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3

Can Phantom Power Brighten LED Clusters?

  • MrXray69
  • · Replies 13 ·
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13

How Does Switch Frequency Affect DC Motor Performance?

  • MechatronO
  • · Replies 3 ·
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3

CD4007 Specs: Vtn, kn, Channel Length Modulation

  • KeithLucas
  • · Replies 3 ·
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3

Unknown Piece of Electrical Equipment (pics) Identify

  • Goonstuff
  • · Replies 5 ·
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5

Small electronic windspeed sensor?

  • jack476
  • · Replies 6 ·
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6

What do Fourier series reveal about a signal's frequency content?

  • MartinV05
  • · Replies 4 ·
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4

Selecting an induction generator for 5.2 kW at 500 rpm

  • jjb23
  • · Replies 7 ·
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7
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7

Electrical interference in work environment

  • ZedHead
  • · Replies 5 ·
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5

How Do Eddy Current Losses in Transformer Cores Work?

  • Physicist3
  • · Replies 3 ·
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3

New type of electric motor (true BLDC)

  • ZenonDorin
  • · Replies 3 ·
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3
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1

Getting high voltage DC output from low voltage DC input

  • Muon neutrino
  • · Replies 24 ·
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24

NEC residential to commercial building conversion

  • rppearso
  • · Replies 1 ·
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1
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5

Effect of zeros on impulse response

  • littlebilly91
  • · Replies 6 ·
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6

Differential Mode Gain: Positive Gain With -Vid/2?

  • FOIWATER
  • · Replies 2 ·
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2

LED series circuit with SPDT switch causing battery pack to smoke

  • Render07
  • · Replies 1 ·
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1

Why are UPS systems rated in both KVA and KW?

  • QwertyXP
  • · Replies 4 ·
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4

Magnetic field strength in hysteresis?

  • Physicist3
  • · Replies 1 ·
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1

Why is Vi - Vf used to calculate voltage in circuits?

  • Miike012
  • · Replies 2 ·
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2

What components to make LED bar graph up/down counter?

  • Stoph
  • · Replies 2 ·
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2

Common mode differential mode signals

  • FOIWATER
  • · Replies 2 ·
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2

Questions about inverting DC to AC

  • kettaneh
  • · Replies 3 ·
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3
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14

Finding Thevenin impedance with dependent sources

  • taseenbhat
  • · Replies 1 ·
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1

DC Transient RL Circuit - Current Decay

  • LADransfield
  • · Replies 3 ·
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3

How to record two signals simultaneous(by using ADC) ?

  • samaaa
  • · Replies 16 ·
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16
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4

Pre heating incandescent light bulbs

  • James125
  • · Replies 5 ·
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5

Hi,a question regarding Fourier transform and energy of a signals

  • berdan
  • · Replies 2 ·
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2

Difference between volt and current

  • MathJakob
  • · Replies 12 ·
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12

DC Generator Output: Vmax, Poles, Ripples, EMF

  • QwertyXP
  • · Replies 8 ·
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8

Building a 24V AC and 0-30V DC power supply with a 220V/24V transformer

  • Bassalisk
  • · Replies 3 ·
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3
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5

Why does cavity filter at 2462 MHz worsen BER compared to 200 MHz BPF?

  • Fovakis
  • · Replies 6 ·
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6

Drawing schematics on high voltage components, like transformers etc.

  • EVriderDK
  • · Replies 5 ·
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5

Double Layer or Depletion Region?

  • hobbs125
  • · Replies 3 ·
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3

Cheap techniques for DIY PCB etching?

  • JulzShred
  • · Replies 3 ·
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3

Calculating current through an IR circuit

  • LADransfield
  • · Replies 7 ·
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7

Ansys Maxwell Inductance Problem

  • superthingy
  • · Replies 2 ·
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2

What are you really measuring as a battery discharges?

  • ptownbro
  • · Replies 1 ·
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1

How does a simple oscillator work in non-ideal conditions?

  • Tactified
  • · Replies 30 ·
2
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30

MQ137 ammonia sensor circuit with relay trigger

  • NipunaG
  • · Replies 2 ·
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2

Development of a contactor, prototype manufacturing

  • wingsofdesire
  • · Replies 14 ·
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14

3-Phase line impedance R/L simulator

  • kended
  • · Replies 2 ·
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2

What Device Prevents Electrical Backflow?

  • Steven Ellet
  • · Replies 8 ·
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8

Generating electricity with wind

  • Trimacon
  • · Replies 6 ·
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6

K type thermocouple malfunction at 800-1000K

  • gpsimms
  • · Replies 3 ·
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3

How does an auto-transformer work?

  • Bararontok
  • · Replies 18 ·
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18

Name of this electrical circuit?

  • nivaOne
  • · Replies 10 ·
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10

Transmission Line Simulation Questions

  • roTTer
  • · Replies 8 ·
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8

Testing Verilog Code - Find Reason Output Not Displayed

  • polaris90
  • · Replies 6 ·
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6

Creating a galvanostat/potentiostat

  • DanTerp
  • · Replies 3 ·
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3

What are some techniques for filtering and amplifying pulse signals?

  • petterg
  • · Replies 104 ·
4
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104

Build a 3000psi Solenoid with 28swg Copper Wire

  • flashskate13
  • · Replies 1 ·
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1

Why is P-N junction so important in semiconductor diodes?

  • abotiz
  • · Replies 2 ·
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2

Amplify Pressure Sensor Output with BJT

  • refind
  • · Replies 10 ·
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10

Charging a capacitor with solar panel?

  • Artlav
  • · Replies 17 ·
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17

3 pressure sensors triggering green LED with switch

  • anorred
  • · Replies 6 ·
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6
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7

Designing and Manufacturing Motherboards

  • polaris90
  • · Replies 4 ·
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4

Whats the rule for a Secondary of a transformer VS Rectification metho

  • smokingwheels
  • · Replies 6 ·
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6