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

Does this exist (proximity circuit)?

  • IHateMayonnaise
  • · Replies 10 ·
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10
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4

How Does Touch Switch Surface Area Affect Capacitance?

  • Jso
  • · Replies 5 ·
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5

Understanding the capacitor deeply

  • finenil
  • · Replies 11 ·
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11

How Does Electromagnetic Interference Affect Outdoor Vending Machines?

  • rashidahwazia
  • · Replies 5 ·
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5

CMOS driving TTL? fanout question

  • EvLer
  • · Replies 7 ·
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7

Tektronix 2246 Oscilloscope CRT Sparkle/Noise - Normal?

  • jordankersten
  • · Replies 17 ·
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17

How does the shape of an electromagnet pole affect the field produced?

  • ptabor
  • · Replies 5 ·
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5

Calculating base voltage of an npn transistor

  • jearls74
  • · Replies 2 ·
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2

A few questions about computer applications and microprocessors

  • Oblio
  • · Replies 3 ·
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3

Where to find specialty circuits

  • Idea04
  • · Replies 12 ·
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12

Opamps not at the write outputing right

  • bigrock
  • · Replies 2 ·
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2

Car Battery Current: Questions & Answers

  • jearls74
  • · Replies 4 ·
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4

Digital Billboard: Cost & Power Usage in Ghana

  • selseg
  • · Replies 1 ·
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1

Creating a Magnetic Mover for Fast Soda Pop!

  • interstellar
  • · Replies 2 ·
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2

Phasor representation of AC voltage and current

  • Astronuc
  • · Replies 3 ·
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3

Bode Phase plot of a second order system

  • bumclouds
  • · Replies 4 ·
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4

Transistor Question: Can a Transistor Amplify Current?

  • jearls74
  • · Replies 1 ·
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1

So essentially a resistor eats up/throws away energy?

  • vmars
  • · Replies 4 ·
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4
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2

How to get power out from a smart phone?

  • rahul_sabnani
  • · Replies 20 ·
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20
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3

How Can I Estimate Blood Velocity Using Doppler Ultrasound?

  • collier
  • · Replies 1 ·
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1

Circuit Diagrams: Software to Draw White Background Diagrams

  • Edwardo_Elric
  • · Replies 3 ·
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3

Using 555 & 556 Timers for 3-Way Solenoid Valve

  • simo
  • · Replies 3 ·
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3

Over Unity Motor: Is it Possible? 2 Australians Have It

  • Lordandrew
  • · Replies 2 ·
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2

Can a 5V Booster and Regulator Simplify Using Different Battery Types?

  • FlashCus
  • · Replies 5 ·
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5

Force produced by current carrying coil to move sludge(steel rod)

  • rvb53
  • · Replies 5 ·
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5

How Do I Calculate the Power Output of a 38 Watt Amp?

  • emigre911
  • · Replies 3 ·
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3

Need guidance on a simple wireless setup to transmit a number

  • ankitgu
  • · Replies 7 ·
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7

How to work out the turn ratio on a transformer

  • speedy46
  • · Replies 11 ·
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11

Can I Use a 60amp Power Supply for a 24V Thermoelectric Cooler?

  • blckonyxx
  • · Replies 5 ·
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5
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17

Automobile antennas-radial ribs?

  • Jupiter6
  • · Replies 9 ·
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9

Interface ADC: Electrical Engineer Fyp Help

  • ruben
  • · Replies 1 ·
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1

What resistor wattage should I use for a load of 100ma to keep contacts clean?

  • I forgot ohms
  • · Replies 3 ·
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3

Seeking fiber optics info - power transmission

  • sunbeam999
  • · Replies 1 ·
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1

Do Lifting Magnets Waste Energy?

  • abbas13677
  • · Replies 9 ·
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9

Charging iPod Touch with 4 AA Batteries: Help Needed!

  • FlashCus
  • · Replies 6 ·
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6

Core material selection for high-current DC solenoid

  • lichen
  • · Replies 7 ·
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7

[HELP] Ding Dong sound for doorbell

  • dirzsignature
  • · Replies 7 ·
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7

Control Engineering Basics: Understanding Output vs Input

  • raybuzz
  • · Replies 5 ·
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5

How useful is this software? Our company is deciding on purchasing a

  • HD555
  • · Replies 3 ·
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3

Decreaseing voltage increases current

  • loadedmike
  • · Replies 10 ·
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10

Is a 12 watt solar panel enough to power a garage ventilation fan?

  • russ_watters
  • · Replies 7 ·
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7

Controlling LED Intensity with Light Sensors

  • zapper
  • · Replies 2 ·
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2
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5
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3

Help Sawmill application: Voltage drop.

  • lukas86
  • · Replies 16 ·
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16

Bragg cell in laser doppler vibrometer

  • zaimir83
  • · Replies 3 ·
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3

Can USB Data Be Transmitted Wirelessly with Circuit Integration?

  • circuit man
  • · Replies 14 ·
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14

Studying to become an Electrical Enginee

  • lukas86
  • · Replies 2 ·
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2
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2

Help finding good books/websites

  • danny12345678
  • · Replies 5 ·
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5
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11

Laser current modulation issues

  • matheyrichs
  • · Replies 11 ·
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11

High Frequency Square Wave Generator: 500 MHz, 2 Channels

  • SwissApe
  • · Replies 7 ·
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7

Electromagnets Range: Comparing Neodymium & Electromagnets

  • Cocacolacan
  • · Replies 12 ·
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12

Ruthenium Battery Prototype: A Breakthrough or a Secret?

  • BatteryNut
  • · Replies 4 ·
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4

How to Calculate the Coupled Transfer Function of Two RC-Filters?

  • Galileo
  • · Replies 2 ·
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2

Creating Motion Sensors for Bus Arrival Panel

  • Cluelss
  • · Replies 5 ·
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5

How Does an Inductor Affect AC Current and Voltage Phase Relationship?

  • fedaykin
  • · Replies 4 ·
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4

Design Ideas for Undergrad in DSP

  • WolfOfTheSteps
  • · Replies 5 ·
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5

Confused EE Student: Learn How to Design Circuits from Scratch

  • jesuslovesu
  • · Replies 3 ·
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3

How can I use a radio wave to turn on/off a siren?

  • Harmony
  • · Replies 3 ·
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3

What magnetic shielding should I use?

  • supro
  • · Replies 18 ·
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18

Circuit designs with crystals and layout of digital clock lines

  • TheAnalogKid83
  • · Replies 2 ·
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2

Build a 240V Inverter: What Components You Need

  • basadebiz
  • · Replies 1 ·
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1

Can we create a radially oriented magnet without inequality or jagged edges?

  • abbas13677
  • · Replies 8 ·
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8

Zero-Crossing Demodulation of FM signals

  • bumclouds
  • · Replies 1 ·
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1

Do Displacement Currents Exist In Electric Motors

  • kmarinas86
  • · Replies 1 ·
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1

Why does current remain constant in a series circuit?

  • Jack John
  • · Replies 2 ·
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2

Control AC Fan Motor with DAQ: AC Voltage Driver?

  • adrianstraka
  • · Replies 2 ·
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2

Expression for the internal potential

  • Ana.B
  • · Replies 6 ·
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6

Are 4uF Capacitors a Viable Option for MMC in Tesla Coils?

  • envytea
  • · Replies 2 ·
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2

Looking for oscillator learning material

  • Danny__
  • · Replies 1 ·
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1

Root Locus: 4 Open Loop Poles at s=-2

  • bill nye scienceguy!
  • · Replies 3 ·
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3

Mobility of holes and electrons

  • jablonsky27
  • · Replies 3 ·
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3

Doubt about NMOS Transistor in Microcap: Varunag

  • varunag
  • · Replies 5 ·
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5

Calculating needed cable diameter

  • Liad
  • · Replies 2 ·
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2

Whats the common name of this course

  • transgalactic
  • · Replies 10 ·
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10

Whats the common name of this course

  • transgalactic
  • · Replies 2 ·
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2

Can You Drive a DC Motor at Maximum Speed with Batteries?

  • reinaldo
  • · Replies 9 ·
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9

Evaluating terminal current capacity.

  • Adder_Noir
  • · Replies 9 ·
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9

Charging a deep cycle battery from cigarette lighter socket

  • Ian_j_s
  • · Replies 3 ·
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3

Which Electromagnet Design Works Best?

  • Chronothread
  • · Replies 5 ·
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5

IGBT + T8 Fluorescent + Simple Ballast = Headache

  • CzarDestructo
  • · Replies 9 ·
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9

Current Discrepancy: Why Positive Charge?

  • Opario
  • · Replies 4 ·
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4

Simple electronic instrument modification.

  • HarryZhe
  • · Replies 9 ·
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9

What is the skin depth at DC in an ideal conductor (superconductor)?

  • antonantal
  • · Replies 5 ·
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5

What does these simbols represent?

  • transgalactic
  • · Replies 3 ·
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3

How does a Wein bridge oscillator work?

  • mbambo
  • · Replies 2 ·
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2

Infinite Capacitance: Uses & Implications in JFET Circuits

  • Yura
  • · Replies 27 ·
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27

Connected the capacitor to a DC power supply

  • unseensoul
  • · Replies 4 ·
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4

Brake Regeneration: Turning Braking Energy into Electrical Energy

  • wolram
  • · Replies 3 ·
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3

Can anyone read memory chips labels?

  • Ulysees
  • · Replies 5 ·
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5

The + sign above the photodiode, what does it mean?

  • cks
  • · Replies 4 ·
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4

How Does a Guitar Amplifier Connect to a Valve's Components?

  • Dezz101
  • · Replies 3 ·
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3

Should DC operated oil rigs convert to AC?

  • worldwidescr
  • · Replies 1 ·
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1

Practical importance of inductance

  • Madhurima
  • · Replies 1 ·
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1