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

Hi i want to calculate the Rinput and Routput of this Active Filter.

  • Fovakis
  • · Replies 17 ·
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17

Calculating twisted pair and connector impedance without field solvers

  • roTTer
  • · Replies 3 ·
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3

Should I Use Arduino Or Experiment?

  • VarietyBook
  • · Replies 4 ·
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4
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2
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3

Load Power Factor in Power System

  • Physicist3
  • · Replies 2 ·
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2

Finding the Best Electrical Circuit Theory Book

  • rohit dutta
  • · Replies 4 ·
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4
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17

What do 'common' terminals mean in this diagram?

  • tomizzo
  • · Replies 6 ·
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6
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4
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4

Transformer input Voltage question

  • Physicist3
  • · Replies 3 ·
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3

Practical digital current regulator

  • MechatronO
  • · Replies 3 ·
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3

What Does a 22.5° Duty Cycle Mean in a Tachometer Square Wave Signal?

  • RexRoentgen
  • · Replies 15 ·
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15

Increase Resistance on Air Exhaust Solenoid Circuit - YKon

  • 1stchiefsfan
  • · Replies 2 ·
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2

Complex Power with power factor

  • ken15ken15
  • · Replies 4 ·
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4

Problems recording sound on the computer

  • Borek
  • · Replies 15 ·
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15

Static electricity risks when using PVC to transfer flammable gas

  • spenser.good
  • · Replies 7 ·
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7

Negative Voltage Regulation in Transformer

  • QwertyXP
  • · Replies 2 ·
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2

Photodiode to dim a led in bright light and brighten in dim light

  • bneal
  • · Replies 4 ·
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4

How Does a Transistor Work?

  • res3210
  • · Replies 8 ·
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8
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3

Latches and flip flops - how is stable state defined?

  • Same-same
  • · Replies 3 ·
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3

HNC Electronics Project enquiries

  • brianmew
  • · Replies 2 ·
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2

Which EE Specialization Offers the Highest Salary and Stability?

  • hervens
  • · Replies 3 ·
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3

Need Backup in an Argument Against Quackery

  • C. jejuni
  • · Replies 1 ·
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1

Magnitude of abs(H(exp(jwT)) = 2

  • Butters
  • · Replies 6 ·
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6

Conduction Angle in SCR Single Phase Rectifiers

  • buildingblocs
  • · Replies 4 ·
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4

0-1A Bidirectional Current Source

  • saad87
  • · Replies 4 ·
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4

How can I control the current in an RL circuit using state space modeling?

  • nbsundaram
  • · Replies 2 ·
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2

Transformers - Why output current decreases for step-up xfmr?

  • tomizzo
  • · Replies 6 ·
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6

Proof of superposition theorem for linear circuits

  • Bipolarity
  • · Replies 4 ·
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4

Driving bistable relays with a 74HC541

  • gnurf
  • · Replies 1 ·
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1

Reducing EMC on CCA - Strategies and Suggestions

  • troberts24
  • · Replies 10 ·
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10

Designing a 24V DC 200W coil: gauge, turns, and dimensions

  • kranth90
  • · Replies 2 ·
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2

Why Do DC Brushless Motors Need Hall/EMF Sensors?

  • VarietyBook
  • · Replies 2 ·
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2

Generating electricity from a Stirling engine for an RC car motor

  • Christian0oo
  • · Replies 4 ·
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4

Ansys maxwell 3d material library

  • snnttldb
  • · Replies 19 ·
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19

Designing a 1.2 ohm heating coil for glycerol vaporization at 300 C

  • SinguIarity
  • · Replies 3 ·
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3

Why does shifting brushes counter armature reaction in a DC generator?

  • QwertyXP
  • · Replies 2 ·
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2

How Can Slave Devices Initiate Communication on an RS-485 Network?

  • kebo
  • · Replies 11 ·
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11

Work done by electric fields in an RL circuit

  • tonyjk
  • · Replies 5 ·
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5

How can I calculate the efficiency of a DC motor for different torque values?

  • Timeforheroes0
  • · Replies 1 ·
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1

Finding pinout and datasheets for iPad digitizer repurposing

  • haxor489
  • · Replies 3 ·
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3

What's wrong with my transformer model with Ansoft Maxwell

  • lba
  • · Replies 1 ·
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1
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1

Core saturation in transformers

  • joao.lima
  • · Replies 3 ·
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3

Why does an open neutral cause voltage imbalance and equipment damage?

  • Crazyhorse2882
  • · Replies 19 ·
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19

Can Tesla Coils Zap Mosquitoes in Flight?

  • Jeff12341234
  • · Replies 6 ·
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6

Grounded conductor charge distribution

  • MrAlbot
  • · Replies 1 ·
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1

Can I Use Materials Other Than Iron for Building an Electromagnet?

  • rexdez
  • · Replies 15 ·
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15

Question on lvd, and load cell output

  • jddj
  • · Replies 3 ·
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3

Designing a Plinko-Style Can Crusher Game

  • yamama1
  • · Replies 5 ·
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5

Voltage/Frequency/Current Question

  • twoducks
  • · Replies 17 ·
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17

Wavelength on power transmission lines

  • terahertz
  • · Replies 14 ·
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14

Fourier Series - Asymmetric Square Wave

  • DmytriE
  • · Replies 2 ·
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2

Mesh Current Analysis for Determining I1, I2, and I1 + I2 in a Network

  • shaltera
  • · Replies 1 ·
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1

Why do protons have a positive charge and what are practical uses?

  • Crazyhorse2882
  • · Replies 16 ·
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16

Why not use copper-coated aluminum wire instead of solid copper

  • Crazyhorse2882
  • · Replies 3 ·
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3

Speeding up charging speed of smartphones.

  • MathematicalPhysicist
  • · Replies 6 ·
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6

Triac Heatup: 1000W Draw - Same Rate?

  • Smed
  • · Replies 2 ·
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2

Why is my LP filter calculation not working properly?

  • rogerk8
  • · Replies 4 ·
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4
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3
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Why Does Gain Decrease as Frequency Increases?

  • onceinalifetim
  • · Replies 1 ·
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1

What Is the V-Hat Object in RC Circuit Filtering?

  • NeuroRYoung
  • · Replies 5 ·
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5

Choosing a generator for mini wind turbine

  • carbs
  • · Replies 1 ·
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1

Applying kirchoff's current law on transistor considering it a single

  • Phyman1109
  • · Replies 2 ·
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2

Just out of curiosity - school material used in your job?

  • Oberummus
  • · Replies 5 ·
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5

Relationship electricity and magnetism

  • t1mm3h
  • · Replies 10 ·
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10

Actuator controller What to use?

  • jonnydot
  • · Replies 2 ·
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2

Magnetisation Curve (Synchronous Machines)

  • buildingblocs
  • · Replies 1 ·
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1

Transformers and Drives - sizing and harmonics

  • elcraft
  • · Replies 2 ·
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2

Is There a 15 OP Amp Chip for PCB Design and Where Can I Find It?

  • _Bd_
  • · Replies 10 ·
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10

Solar cell open-circuit voltage

  • hokhani
  • · Replies 1 ·
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1

Transisor beta to design transistor circuit

  • helofrind
  • · Replies 5 ·
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5

Control torque of 3 phase motor

  • inelastic
  • · Replies 3 ·
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3

DAC-Opamp Implementation: Opinions on this Design (does it work?)

  • Elecomputer
  • · Replies 1 ·
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1

Why is a 1/4 wavelength antenna limited to 1/4 wavelength length?

  • d.arbitman
  • · Replies 20 ·
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20

Why Does an Energized Wire Trip a Breaker When Grounded?

  • Crazyhorse2882
  • · Replies 10 ·
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10
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1

Should I Use PID Regulator for My Control System?

  • rasco
  • · Replies 3 ·
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3

Net Metering: Phase Matching for Solar Panels

  • rollingstein
  • · Replies 3 ·
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3

Is Plasma Possible Inside a Light Bulb?

  • iScience
  • · Replies 3 ·
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3

Getting started with microcontrollers.

  • Jarfi
  • · Replies 9 ·
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9

Why Does Generator Rotor Speed Decrease with Higher Ratings?

  • DUET
  • · Replies 1 ·
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1

PLL offset adder and integrator output voltage and cutoff frequency

  • Geeky
  • · Replies 7 ·
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7

How to find Resonance frequency of rectangualr cavity from FDTD data

  • confi999
  • · Replies 1 ·
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1

Boost converter - ripple current

  • sprunger
  • · Replies 3 ·
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3

Forced Commutation Clarrification

  • sandy.bridge
  • · Replies 5 ·
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5

What is the impedance of a matched transmission line

  • Mr.Gronka
  • · Replies 11 ·
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11

Can the term distortion be used interchangeably?

  • StarsFly
  • · Replies 4 ·
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4

Ignition coil as Hvdc transformer

  • umed9
  • · Replies 2 ·
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2

HVDC system based on VSC technology built with IGBTs.

  • DUET
  • · Replies 2 ·
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2

Learning electronic engineering online

  • Superposed_Cat
  • · Replies 1 ·
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1

Is It Possible to Charge an iPod Using a Windmill on a Car?

  • LightningB0LT
  • · Replies 7 ·
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7

Boost converter switch node spiking

  • Artlav
  • · Replies 26 ·
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26

Grounding Test: Ordinary Multimeter vs Special Tool?

  • Royherd27
  • · Replies 4 ·
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4

What is the resistance of this resistor?(pic included)

  • Jarfi
  • · Replies 7 ·
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7

IGBT(Difference between n and n(+))

  • DUET
  • · Replies 2 ·
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2