Electrical Engineering Forum

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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...
Circuit that takes a pulse from a 555 chip
  • Tom McCurdy
  • · Replies 11 ·
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11
Vibration Switch: Does It Return to Normally Open?
  • Gughanath
  • · Replies 2 ·
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2
Understanding Transistors: A Basic Guide
  • Makiavel
  • · Replies 10 ·
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10
EMP generator using a spark gap
  • i0n
  • · Replies 8 ·
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8
Finding a Tilt Switch for Your Bike Alarm
  • Gughanath
  • · Replies 7 ·
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7
Smallest Speakers: Are Speakers Made This Small?
  • mat337d
  • · Replies 9 ·
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9
Morse Code IC Timer for Intercoms
  • username
  • · Replies 3 ·
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3
Can Changing the Frequency of a Cellphone Affect a 900MHz Cordless Phone?
  • exequor
  • · Replies 7 ·
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7
25W Power Amp: Can I Use a Thermal Pad?
  • dduardo
  • · Replies 2 ·
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2
Learn Circuit Design: Finding Good Books for Electronics Projects
  • thisisausername
  • · Replies 2 ·
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2
Spherical Rotor: A New Vision for Electrical Machines
  • Clausius2
  • · Replies 14 ·
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14
Can a Rat Brain Really Fly a Plane?
  • GENIERE
  • · Replies 1 ·
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1
What Happens to Voltage in a Parallel LRC Circuit with a DC Source?
  • Firefox123
  • · Replies 10 ·
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10
Multi-Input XNOR: Definition & Conventions
  • Bartholomew
  • · Replies 1 ·
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1
A basic electrical question, but i can't work it out.
  • MaximumTaco
  • · Replies 1 ·
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1
Direct and Indirect Contact with electrical epuipment
  • ArFaT
  • · Replies 1 ·
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1
What is the impedance across a resistor?
  • Monsu
  • · Replies 2 ·
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2
Electrical Safety: Explaining Automotive Battery Hazards
  • usmanmasood
  • · Replies 4 ·
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4
Electrical Safety: Direct vs. Indirect Contact
  • usmanmasood
  • · Replies 1 ·
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1
Electrical Data Communications
  • ramollari
  • · Replies 4 ·
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4
Switch 220V with a microprocessor
  • Billy_w
  • · Replies 5 ·
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5
How Can I Improve the Reliability of My Low-Cost Digital Radio Interface?
  • NeutronStar
  • · Replies 5 ·
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5
TX/RX on 108kHz need a lot of help.
  • Arctic Fox
  • · Replies 13 ·
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13
Physical interpretation of Reluctance
  • cosmonova
  • · Replies 1 ·
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1
Learning to Read Electrical Schematics
  • nile
  • · Replies 5 ·
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5
Make Electric Coils Resonate: A Beginner's Guide
  • Jdo300
  • · Replies 3 ·
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3
Designing Coil of Eddy Current Sensor - Get Tips & Solutions
  • naibes
  • · Replies 3 ·
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3
2-1 multiplexer using only nands and nots
  • mathrocks
  • · Replies 1 ·
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1
Simple question about inverting and noninverting op amp amplifiers
  • learningphysics
  • · Replies 2 ·
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2
Limit switch explained in everyday language
  • Stanley_Smith
  • · Replies 4 ·
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4
How to Implement an ALU at Gate Level in Verilog?
  • alt3r
  • · Replies 2 ·
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2
How Did Old Magnetic Sensing Torpedoes Detect Submarine Hulls?
  • Rothiemurchus
  • · Replies 3 ·
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3
Build a Stun Gun: Radio Parts & More
  • exequor
  • · Replies 19 ·
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19
The Basics of Power & Circuitry: An Explanation for Laypeople
  • fatalenergy
  • · Replies 2 ·
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2
Which is More Secure: Computer Engineering or Electrical Engineering?
  • guru
  • · Replies 2 ·
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2
Can You Build a Cell Phone Signal Booster Using a Copper Sheet?
  • Garfield
  • · Replies 1 ·
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1
Why is Voltage b/w 220 & 330 Olm Resistors 0V?
  • sirfederation
  • · Replies 1 ·
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1
Logic Circuit Design: Controlling an Electromagnet with a Micro Switch
  • vivazza
  • · Replies 2 ·
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2
Practical Uses of NOT, OR, and AND Gates
  • eku_girl83
  • · Replies 2 ·
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2
Humming Capacitor: Causes and Solutions
  • Tree Penguin
  • · Replies 1 ·
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1
XNOR Gate: The Combination of XOR and NOT Gates
  • eku_girl83
  • · Replies 4 ·
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4
Verifying the Shockley Equation: Explaining a Circuit
  • retupmoc
  • · Replies 1 ·
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1
Mathematics for electrical engineering
  • niko2000
  • · Replies 2 ·
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2
Begin to use assembly without any programming knowledge
  • bezgin
  • · Replies 1 ·
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1
Can You Help Me Find a Heart Beat Detector Circuit with LED Display?
  • benzun_1999
  • · Replies 1 ·
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1
Is the Solution to This Standardized Test Circuit Problem Correct?
  • Firefox123
  • · Replies 9 ·
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9
How do u like Electrical Engineering
  • Tom McCurdy
  • · Replies 9 ·
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9
Signal Modulation: Why Does ASK/PSK (QAM) Need Bandwidth?
  • LostInSpace
  • · Replies 1 ·
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1
Anyone an electromechanical engineer?
  • brandon.irwin
  • · Replies 1 ·
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1
What resources are available for someone new to electronic engineering?
  • bezgin
  • · Replies 2 ·
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2
Explain to me what resistors do?
  • Maxwell
  • · Replies 7 ·
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7
How Can You Safely Power and Control a Peltier Device?
  • russ_watters
  • · Replies 8 ·
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8
Class II Green Laser for Prototype Design - Angular Spread: 30 Degrees
  • Glenn
  • · Replies 12 ·
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12
Constructing Overflow Detection Circuit with Logic Works
  • mathrocks
  • · Replies 7 ·
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7
How do u increase the sensitivity of an IR sensor?
  • vivazza
  • · Replies 1 ·
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1
Liquid Crystal Contact Lens: The Future of Vision Correction?
  • Wave's_Hand_Particle
  • · Replies 2 ·
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2
Can I Reverse Engineer a Standard Motor to Achieve Higher Speed?
  • Jmartuzzo
  • · Replies 17 ·
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17
How Can Beginners Dive into Electrical Engineering Projects?
  • bezgin
  • · Replies 1 ·
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1
Thevenin's Theorem: Merits & Demerits
  • asha84
  • · Replies 1 ·
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1
Detecting a secret telephone conversation?
  • book
  • · Replies 2 ·
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2
Is it possible to amplify uniforn current?
  • aekanshchumber
  • · Replies 1 ·
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1
What Causes Data Signal Attenuation Over Different Cable Lengths?
  • MC363A
  • · Replies 5 ·
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5
Fix Microwave After Gemsquash Explosion
  • Evil Knievel
  • · Replies 2 ·
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2
Solve RC Circuit: Find Capacitor Value
  • gregbellows
  • · Replies 2 ·
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2
Capacitive Start Motor: What Happens After Starting?
  • paul11273
  • · Replies 2 ·
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2
Why isn't my freezer freezing with my new Mitsubishi MGE 4000 generator?
  • exequor
  • · Replies 7 ·
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7
I don't understand what inductors do
  • book
  • · Replies 1 ·
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1
DSP Book Recommendations for Beginners
  • kdkdkd
  • · Replies 2 ·
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2
Adapt A Stick Welder For Thinner Materials & Aluminum
  • Evil Knievel
  • · Replies 19 ·
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19
Can the Electrical Signals in the Human Brain be Measured?
  • jayesh
  • · Replies 2 ·
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2
Logic question, 3 input OR to 2 input OR
  • mathrocks
  • · Replies 9 ·
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9
Designing a 64k 8 Bit Word Memory Unit with 4096x4 Chips
  • mathrocks
  • · Replies 1 ·
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1
Op-amp oscillator circuit - square, triangle, sine waveforms
  • louie
  • · Replies 2 ·
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2
A humble question about the 2N3904 transistor
  • dip
  • · Replies 5 ·
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5
Decoding Analog Signals with PCM/QAM - Help Needed
  • IT_GE
  • · Replies 11 ·
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11
Adding remote control volume to old amplifier.
  • staylong
  • · Replies 1 ·
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1
How to Convert AND/OR Circuits to NAND/NAND Using Only NAND and NOT Gates?
  • mathrocks
  • · Replies 1 ·
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1
The Speed Secrets of Maglev Trains: Equations and Resources
  • MasterPine
  • · Replies 1 ·
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1
How does a maglev train get on-board power?
  • ldeane
  • · Replies 6 ·
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6
Online electronics solved exercises needed
  • Mastermind
  • · Replies 2 ·
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2
Help Needed: Frequency to Voltage Converter Knowledge
  • spacecowboy
  • · Replies 4 ·
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4
Designing a Frequency to Voltage Converter: Specifications and Considerations
  • IKu
  • · Replies 9 ·
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9
Can a Casio Keyboard Be Rigged to Send MIDI Data?
  • inadaze
  • · Replies 2 ·
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2
Controls Engineering: Resources & Tutorials for Beginners
  • Stanley_Smith
  • · Replies 2 ·
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2
Why Aren't Revolutionary Propulsion Technologies Mainstream?
  • tomsschulte
  • · Replies 3 ·
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3
Is There a Software for Designing Simple Antenna Systems?
  • Mica
  • · Replies 6 ·
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6
Optimizing Antenna Efficiency: Matching Frequency and Waveform
  • Mica
  • · Replies 4 ·
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4
DC-DC conversion from ca. 10V to 1000V
  • flos
  • · Replies 2 ·
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2
Unusual battery charging system
  • Bucephalus
  • · Replies 14 ·
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14
Proof of the scaling property of an impulse function
  • amolraf
  • · Replies 1 ·
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1
How can I increase current output for my computer controlled DAC?
  • KayMan2k
  • · Replies 3 ·
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3
How Does Heat Transform into Current in Electric Devices?
  • cala
  • · Replies 1 ·
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1
Calculating Output Time for an Electric Wheelchair | 12V Batteries & 1hp Motor
  • Juntao
  • · Replies 2 ·
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2
Voltage the wave form is a sin or a triangle in a dipole antenna
  • Mica
  • · Replies 12 ·
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12
What Do Constant Torque and Constant HP Mean on an Electrical Motor Nameplate?
  • Eng_Luqman
  • · Replies 1 ·
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1
How Does Holographic Memory Work
  • dduardo
  • · Replies 2 ·
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2
How to determine appropriate lighting?
  • ENGRstudent
  • · Replies 2 ·
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2
Is There Really No Voltage Across an Ideal Wire According to Ohm's Law?
  • cepheid
  • · Replies 8 ·
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8
Faraday's law and loop of wire of resistance
  • Dominguez Scaramanga
  • · Replies 2 ·
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2
Voltage pulse from ignition coil ?
  • kuhl0040
  • · Replies 14 ·
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14