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

Basic Radio Questions -- Oscillators, Mixers and Modulators

  • revv
  • · Replies 26 ·
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26

One of my wheelchair motors overheats and stops working

  • Roysmokie
  • · Replies 43 ·
2
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43

Coupling signals to a stripline transmission line

  • Ravaner
  • · Replies 6 ·
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6

Why Is the Picture Carrier Placed 6 dB Down in the IF Response Curve?

  • brainbaby
  • · Replies 16 ·
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16

Mechanically driven generator & inductive resistance to torque

  • MasonJ1989
  • · Replies 17 ·
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17

Quick Question about a Piezoelectric shoe for project

  • Jalon Young
  • · Replies 1 ·
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1

Camera Lens works as a Polarizer or not?

  • Mustafa Umut
  • · Replies 4 ·
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4

Magnetic plate eddy current braking effect on a copper disc

  • Gyro de Pyro
  • · Replies 1 ·
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1

How many Amp turns around the Earth for this flux density?

  • Clark Magnuson
  • · Replies 4 ·
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4

Perpetually driven electric car

  • Problemsolver
  • · Replies 2 ·
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2

Rolls Royce permanent magnet thruster questions

  • Yogi71
  • · Replies 10 ·
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10

Relevant highest order harmonics in power systems

  • Axe199
  • · Replies 3 ·
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3

Any idea what these sensors are on lightpoles in a stadium parking lot?

  • berkeman
  • · Replies 10 ·
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10

Carrier Signals and demodulation of audio waveforms

  • ADDA
  • · Replies 23 ·
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23

Setting Up a 12V DC Test Stand w/ Controller & Cycle Count

  • Zarathuztra
  • · Replies 5 ·
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5

How to measure a magnetic field

  • pdm
  • · Replies 6 ·
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6

Magnetic Suspension Circuit: Troubleshooting Levitation

  • Franklin Lopez
  • · Replies 11 ·
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11

Materials for DTL, TTL circuit analysis

  • diredragon
  • · Replies 8 ·
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8

Leakage Reactance of a three phase power transformer using Ansys Maxwell

  • ismail BAYSAL
  • · Replies 1 ·
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1

End of Moore's Law? Future of Transistors & Computing Tech

  • Voq
  • · Replies 13 ·
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13

Hello, ferrite rod coupling inductor, I dont understand

  • michael1978
  • · Replies 10 ·
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10

Converter not starting up once line input voltage connect

  • Joshua_S
  • · Replies 5 ·
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5

Computing Alternator Back EMF as a function of load current

  • Bcavender
  • · Replies 13 ·
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13

Induction Motor to Stepper Motor

  • Ana Mido
  • · Replies 3 ·
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3

Need help with MOSFETs and photoresistors

  • hugo_faurand
  • · Replies 31 ·
2
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31

Pelton Wheel for Power Generation

  • Alfredo
  • · Replies 5 ·
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5

Hi, I with a ferrite rod antenna please

  • michael1978
  • · Replies 33 ·
2
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33

Why Are Surge Capacitors Tied to Ground?

  • kenneth edmiston
  • · Replies 3 ·
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3

Problems snubbing HF noise on flyback transistor

  • Jdo300
  • · Replies 21 ·
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21

Why Use Voltage Dividers Instead of a Single Resistor?

  • OldWorldBlues
  • · Replies 5 ·
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5

Why Choose IGBT Over MOSFET for Low-Frequency Applications?

  • tim9000
  • · Replies 10 ·
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10

Easy way to calculate losses for re-purposing a transformer?

  • OldWorldBlues
  • · Replies 28 ·
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28

Definite purpose and general purpose contactors

  • srinaath
  • · Replies 4 ·
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4
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8

Why do we normalise a signal (function)?

  • janu203
  • · Replies 2 ·
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2

Why is the bandwidth in PCM half of the transmission rate?

  • janu203
  • · Replies 4 ·
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4

Optimizing Phase and Gain Alignment for DF Systems at 200KHz

  • nauman
  • · Replies 22 ·
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22

How to calculate magnetic flux from voltage?

  • Nads
  • · Replies 4 ·
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4

Calculating 208V load, purpose of sqrt(3) and power factor?

  • JJinNR
  • · Replies 11 ·
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11

Iref extraction in active power filters using active filters

  • Axe199
  • · Replies 3 ·
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3

Battery condition check via voltmeter (with/without Load)

  • EEristavi
  • · Replies 16 ·
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16

Combining Signals of Hall Sensor & Rogowski Coil

  • Glenn Emmers
  • · Replies 30 ·
2
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30

Wire size and type for gain clone type amp?

  • JohnM24018
  • · Replies 5 ·
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5

5GHz hairpin bandpass on high end fiberglass (Megtron-6)

  • the_emi_guy
  • · Replies 3 ·
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3
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1

How to Implement Control for an Inverted Pendulum System?

  • thegreengineer
  • · Replies 4 ·
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4

MicroVoltage fuse (Now "Sensing the Flame-Front of a Plasma")

  • davidwinth
  • · Replies 57 ·
2
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57

Making a system with mobile electrical contacts

  • _maxim_
  • · Replies 13 ·
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13

Charge 18650 with BCAP0050 2.7V 50F is possible?

  • fer344
  • · Replies 5 ·
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5

Input resistance into a MOSFET amplifier

  • Abdulwahab Hajar
  • · Replies 3 ·
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3

Experienced with PQ Control and PI Tuning for Inverter Power Control?

  • GregoryGr
  • · Replies 4 ·
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4

Moving a solenoid coil in a strong magnetic field

  • _maxim_
  • · Replies 8 ·
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8

Motor: stator and rotor magnetic strength

  • wetel
  • · Replies 1 ·
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1

Optimal values for power in an induction heater?

  • Shadow89
  • · Replies 2 ·
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2

GaAs FET Troubleshooting: Assembly Not Working

  • Ravaner
  • · Replies 4 ·
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4

Question about the efficiency of a generator

  • Dong-oh Lee
  • · Replies 4 ·
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4

Component to introduce time-delay

  • Wrichik Basu
  • · Replies 13 ·
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13

A single wire electrical energy transmission....

  • Gopalkrishna
  • · Replies 5 ·
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5

Fixing a Bluetooth Controller on a Motorcycle: Please Educate Me

  • Shaneyj
  • · Replies 2 ·
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2

How to calculate the accurate capacity of a battery?

  • CmdrRoot
  • · Replies 11 ·
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11

Braking Force from Eddy Currents on a Rotating Disk

  • Michael Sofroniou
  • · Replies 1 ·
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1

Repulsive force of an electromagnet and a magnet

  • Inventor1
  • · Replies 12 ·
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12
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3

Why is a capacitor a generator of lagging reactive power?

  • Engineer1
  • · Replies 3 ·
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3

Why do we use a Contact Resistance Measurement test?

  • Manoj Sahu
  • · Replies 11 ·
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11

Synchro Signal Frequency changes

  • grasscut
  • · Replies 36 ·
2
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36

Where does one shop for SEM components?

  • Daniel Sellers
  • · Replies 1 ·
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1

Mathematics behind Signal and Systems

  • amg63
  • · Replies 4 ·
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4

Window Comparator: Understanding the Output Behavior and Common Errors

  • Alex Hughes
  • · Replies 5 ·
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5

Voltage Booster for Peltier Tiles

  • ZiHao
  • · Replies 17 ·
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17

Independence of Currents in Inductor-Switch Circuit

  • abdullah khaled
  • · Replies 3 ·
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3

How can I make my homemade electromagnets repel each other?

  • corydax
  • · Replies 6 ·
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6

Power requirements for an electric trike

  • bemidjimac
  • · Replies 3 ·
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3
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18

Old 6 volt auto headlight in series with 1154 on 12 volts

  • John1397
  • · Replies 2 ·
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2

Simulation of transistor switch circuit

  • Alex Hughes
  • · Replies 5 ·
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5

Power supplied by AC component + DC component = total power?

  • hsuy
  • · Replies 6 ·
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6

Where to Learn how to Design Circuits?

  • Alex Hughes
  • · Replies 7 ·
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7

Method for testing discharge resistors in 3 phase capacitors

  • kenneth edmiston
  • · Replies 12 ·
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12

Ampere turn balance (MMF balance) in transformers

  • gorlyu
  • · Replies 36 ·
2
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36

Creating a Multi-Radio Wave Demonstration: How to Find the Right Machine

  • Charles_The_Erlich
  • · Replies 13 ·
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13

Can self induction increase power consumption?

  • Jucimar
  • · Replies 5 ·
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5

Finding the Torque vs RPM curve for a 3-phase AC induction motor

  • zaraf
  • · Replies 4 ·
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4

Third Order Intercept - Use Peaks or RMS?

  • Natalie Johnson
  • · Replies 11 ·
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11

Weird circuit board with only resistors

  • greypilgrim
  • · Replies 8 ·
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8

Hello, how can I replace a variable capacitor with a varicap

  • michael1978
  • · Replies 49 ·
2
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49

Simulation Software for a Permanent Magnet Alternator Design

  • Bcavender
  • · Replies 7 ·
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7

Help understanding auto transformer shorting

  • kenneth edmiston
  • · Replies 23 ·
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23

How does does a DC generator work?

  • Jake DAprile
  • · Replies 5 ·
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5

Help with reducing AC Mains voltage sag at large chiller motor startup

  • kenneth edmiston
  • · Replies 13 ·
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13

Serl Effect Generator: What Is It?

  • wetel
  • · Replies 4 ·
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4

Understand the Current Consumption of an IC in its Datasheet

  • mheruian
  • · Replies 5 ·
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5

Understanding Dual Output Zener PSU

  • Mzzed
  • · Replies 7 ·
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7

Mutual Inductance of Coaxial Tube and Coil

  • Ian Schwartz
  • · Replies 1 ·
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1

Question about measuring the internal resistance of power supplies

  • yubson
  • · Replies 8 ·
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8

How Has Television Technology Evolved Over the Years?

  • dlgoff
  • · Replies 21 ·
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21

Transformer equations in the Hughes book

  • billyray
  • · Replies 2 ·
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2

How to wire two female USB connectors togather

  • John1397
  • · Replies 8 ·
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8

How and Why Peltier Tiles work?

  • ZiHao
  • · Replies 1 ·
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1

There is more to Kirchoff than a law....

  • Windadct
  • · Replies 2 ·
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2