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

Maximizing Current Through a Coil Without Short Circuiting

  • quantoshake11
  • · Replies 9 ·
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9

Electrochemistry (batteries), Wheatstone bridge question.

  • tabasko
  • · Replies 6 ·
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6

Quantity referred to as 'self-capacitance

  • bbh2808
  • · Replies 6 ·
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6

The Importance of Voltage in Electrical Components

  • tkahn6
  • · Replies 4 ·
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4

Bandwidth Problem: Increase Gain & Keep Constant

  • greg997
  • · Replies 2 ·
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2

How to Implement Error Handling in a VHDL T Flip-Flop Design?

  • parasgupta6
  • · Replies 3 ·
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3

Need a cheap binary AM transmitting circuit

  • hxtasy
  • · Replies 2 ·
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2

What Experiments Can Prove Light and Wavelength Theory Using TCS230?

  • thavamaran
  • · Replies 4 ·
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4

Change battery input with a power adaptor

  • nitronics
  • · Replies 8 ·
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8

Troubleshooting Unstable ADC Reading for PT100 Signal Circuit

  • Chandra214
  • · Replies 7 ·
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7

What is the voltage drop across a diode when it is reverse biased?

  • NotStine
  • · Replies 6 ·
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6

Selective Dimmer for Two Light Sources

  • Or Entity?
  • · Replies 9 ·
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9

Need cheap way/product to produce acurrent at very low voltage.

  • mikeryan
  • · Replies 10 ·
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10

Answer: Calculating Time to Discharge Capacitor Rated x Micro-Farads

  • James889
  • · Replies 5 ·
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5

Behaviour of LEDs in presence of magnetic fields?

  • Frank Lampard
  • · Replies 3 ·
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3

Rev Counter Problem need info on a signal divider

  • Drisruptor
  • · Replies 3 ·
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3

Solving 82C55 Doubt: Usage & Examples

  • i.mehrzad
  • · Replies 1 ·
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1
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2

What's the difference between an electron hole and a positron?

  • ddd1600
  • · Replies 8 ·
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8

Replacing an Audio Transformer: EI-19 Output Specs and Replacement Guide

  • chaoseverlasting
  • · Replies 3 ·
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3
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17

A sort of free energy? Possbilble or not

  • NARITT88
  • · Replies 2 ·
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2

How do you approach designing complicated circuits?

  • e-o
  • · Replies 15 ·
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15

Building a Guitar Effects Pedal

  • chaoseverlasting
  • · Replies 10 ·
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10

DC to AC Converter: Understand Power Inverter Transistors & DC Source

  • Jammin_James
  • · Replies 3 ·
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3

Where do I get started with analog/digital circuit design?

  • tkahn6
  • · Replies 5 ·
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5

Continuous Charge Distribution?

  • wajed
  • · Replies 1 ·
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1

Good fluke meter runs around $300

  • nolanlewisamp
  • · Replies 9 ·
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9

Calculating Cable Size | Engineers Guide

  • megatronic
  • · Replies 6 ·
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6

Do real circuits need to be physically grounded?

  • atlbraves49
  • · Replies 7 ·
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7

Which voltage option for single phase supply?

  • Icestation2
  • · Replies 3 ·
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3

Connecting 460V Motor to 480V Supply - Issues & Risks

  • XPTPCREWX
  • · Replies 1 ·
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1

Ultrasonic Radar: How to Build & Use on a Computer

  • hackergod
  • · Replies 2 ·
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2

Using PV cells to energize an air core coil

  • Robin07
  • · Replies 6 ·
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6

Electricity: Positive to Negative or Negative to Positive?

  • brewcrew975
  • · Replies 1 ·
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1

Common emitter vs. common collector power amplification

  • kthouz
  • · Replies 3 ·
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3

Interested in robotics and astro physics

  • sarvani c
  • · Replies 1 ·
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1

Ground question and pen voltage detectors.

  • djdoug99
  • · Replies 2 ·
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2

What Are the Major Device Ratings for a MOSFET?

  • edsys89
  • · Replies 1 ·
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1

DC to AC Inverter Design Difficulty

  • Scorael
  • · Replies 1 ·
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1

Solve Autocorrelation of WSS RP and Modulated Carrier Cos(w0t+Θ)

  • ahamdiheme
  • · Replies 1 ·
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1

Electric current and voltage question

  • johndb
  • · Replies 7 ·
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7

Can a Transformer Rated at 225 VA Only Supply 25 mA on the Secondary Side?

  • brewcrew975
  • · Replies 7 ·
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7

Ideas or research topics in semiconductor devices and device physics

  • Nphysicist
  • · Replies 1 ·
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1
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1

Current Sensing Resistors in an H Bridge Circuit

  • EEstudentNAU
  • · Replies 1 ·
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1

What is a safe way to charge myself to 300V?

  • seang
  • · Replies 9 ·
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9

Continuous Charge Distribution: Symmetry & Meaning

  • wajed
  • · Replies 2 ·
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2

Fuse Resistors, CFLs, and God Awful SMPSes

  • bitrex
  • · Replies 5 ·
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5

Can Automobiles Be Used as Power Generators?

  • ruko
  • · Replies 26 ·
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26

Triple major in EE, Math, and Physics?

  • pablos511
  • · Replies 7 ·
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7

Transistor Approximations: NPN BC548 vs. 2N3904, PNP BC559 vs. 2N3906

  • nomizzz
  • · Replies 4 ·
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4

How Does Adding a Series Resistor Affect Current Calculation in an RC Circuit?

  • bill.connelly
  • · Replies 20 ·
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20

A beginner's question /may be too easy

  • electrostatic
  • · Replies 12 ·
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12

Can 22 AWG wire be used for a design of up to 7A

  • atlbraves49
  • · Replies 11 ·
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11
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2

Buck-converter with dual-MOSFET operation for constant current output

  • deen25
  • · Replies 23 ·
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23

Help me read this solenoid diagram please

  • eberg
  • · Replies 2 ·
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2

Calculating VA in a Tube Preamp Circuit

  • jordankersten
  • · Replies 11 ·
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11

Calculating RC & LC Time Constants: Series vs. Parallel

  • FrankJ777
  • · Replies 1 ·
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1
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4

Increase the coupling efficiency of fiber

  • cks
  • · Replies 2 ·
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2

When Should You Use Low or High Voltage with VFDs and Dual Wye Motors?

  • XPTPCREWX
  • · Replies 1 ·
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1

Induction Coil powering a load (inductive reactance problem)

  • orphefs
  • · Replies 23 ·
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23

Diesel generator and capacitor question

  • generaors1234
  • · Replies 6 ·
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6

Can Op-Amps Create Effective Voltage-Controlled Resistors?

  • Jdo300
  • · Replies 11 ·
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11

Fourier Transform Vs Prony/GPOF

  • zinda_rud
  • · Replies 2 ·
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2

Using a Variac to heat a flexible rope heater

  • tribosonics
  • · Replies 2 ·
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2

Signal processing + parameter estimation

  • JamesGoh
  • · Replies 2 ·
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2

Designing an LED Array Circuit for Real-Time Feedback on Exercise Equipment

  • Rick Martin
  • · Replies 4 ·
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4

IV curve of a BD-5 tunnel diode

  • jack b
  • · Replies 4 ·
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4

Impendance matching and power transfer

  • duckandcover
  • · Replies 9 ·
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9

N-doped region tend to flow to the p-doped region

  • Harmony
  • · Replies 1 ·
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1

Need this derivation to solidify understanding

  • HasuChObe
  • · Replies 1 ·
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1

GHz AC Frequency - Max "Practical" Generation: Solenoid Q&A for Experts

  • BrianConlee
  • · Replies 12 ·
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12

Cost Comparison of 200KW Induction Motors

  • wkaiyu
  • · Replies 4 ·
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4

Current vs Voltage: 60Hz Explained

  • Idea04
  • · Replies 14 ·
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14

Question for pulsing electromagnet

  • Mindstormed
  • · Replies 1 ·
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1

Analog finter design for harmonics reduction

  • kk116
  • · Replies 1 ·
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1

Building power amplifier. Need some help with schematics

  • bambbrose
  • · Replies 5 ·
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5

Troubleshooting Home Lighting Problem

  • Burfameng
  • · Replies 1 ·
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1

MP3 Players: How Digital Data Becomes an Analog Signal

  • aeterminator1
  • · Replies 8 ·
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8

What is the Correct Definition of Dynamic Resistance and Resistivity?

  • tiny-tim
  • · Replies 3 ·
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3

Why is the current constant in a series circuit?

  • Forestman
  • · Replies 2 ·
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2

Voltage output pressure transducer ?

  • hitman2hire
  • · Replies 3 ·
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3

Treble and bass audio controls w/o phase shift?

  • Bob S
  • · Replies 2 ·
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2

Find the Best Maths Package for Control Engineering Projects

  • phlegmy
  • · Replies 5 ·
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5

Electrical Power to Mechanical Power

  • KLoux
  • · Replies 5 ·
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5

Understanding Phasors: Time & Frequency Domains

  • Pythagorean
  • · Replies 2 ·
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2

Aerospace Engineering: Lift Mass 1ft-1.5ft Off Ground

  • Eskimo87
  • · Replies 18 ·
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18

3 phase equipment on 1 phase supply

  • Ca$h
  • · Replies 8 ·
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8

Why does the magnetic flux in a CT core decrease with connected load?

  • b.shahvir
  • · Replies 51 ·
2
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51

Building a Counter for HeartBeat

  • tenacity2986
  • · Replies 3 ·
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3

Can capacitors self charge in a circuit?

  • pandu
  • · Replies 3 ·
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3

Making a 433MHz Phase Detector with Log Amplifiers

  • RLovelett
  • · Replies 6 ·
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6

Strong electromagnet with a constant field

  • ThoughtProces
  • · Replies 11 ·
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11

Phase Shift Independent of Frequency: Circuit Solutions

  • GlynnHeeswijk
  • · Replies 4 ·
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4

How Do You Connect PLC with SCADA?

  • User Name1
  • · Replies 1 ·
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1

Having trouble with circuit to adjust speed of electric motor

  • .....
  • · Replies 11 ·
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11

Handheld 10W Laser: Possibilities and Concerns

  • Mgt3
  • · Replies 21 ·
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21