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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...
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Title
Best way to superimpose an AC small signal on a DC power signal
May 5, 2009
Replies
25
Views
23K
Strange Voltages to ground on control circuit
May 5, 2009
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What is the meaning of phase locked?
May 5, 2009
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IEEE: 25 Microchips that Shook the World
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Three phase ac motors 110v help
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Some quick questions regarding solenoids
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Lighting up a lot (50) vacuum tubes
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Superconductors and high voltage
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Can a 12 volt DC motor and PWM be used to power a dolly?
May 3, 2009
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Find First TOF Mass Spectrometer Diagrams & Schematics
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Understanding the Role of Series Resistors in Piece-Wise Linear Diode Models
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What type of signals are needed for transmitting and receiving data from Mars?
May 3, 2009
Replies
3
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AC electromagnet questions-I'm smart, but not an engineer-Help
May 3, 2009
Replies
4
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6K
What Happens to Charge and Energy When Connecting Capacitors in Parallel?
May 3, 2009
Replies
2
Views
2K
Stepper Motor Control: Replicating Rotation at Point A at Point B
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Replies
10
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5K
Understanding Reverse HFE in Transistors for Audio Circuit Protection
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Replies
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Obtaining power distribution of faded signal
May 2, 2009
Replies
2
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Need help with Circuit: LED Blinking Problem
May 2, 2009
Replies
23
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10K
Optimizing Motor Performance: Series vs Parallel Wiring
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Replies
5
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37K
How Can I Improve My Magnetic Launcher Project?
May 2, 2009
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17
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What Is the Best DC to AC Converter for a 500V, 50A Generator?
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Replies
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Thermionic emission and diffusion theory
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Replies
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7K
IEEE Project Format: What is the Standard?
May 1, 2009
Replies
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AIM Spice/Extract: Experience & Replies Appreciated
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What is the difference between complex and real signals in mobile communication?
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Electric Field in simple circuit
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Replies
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10K
What Determines Maximum Voltage in an RL Circuit with AC Power?
May 1, 2009
Replies
1
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9K
Pedal Power: A Business Success Story & Wiring Questions
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FPGA VHDL tristate buffer for ram inout signal
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11K
Computer Engineering VS. Telecommunication Engineering?
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18K
Varnish or Potting, Which one is Better to Avoid Humming Noise from Inductor
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Replies
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12K
Constant-amplitude vs. constant-velocity, in layman's terms
Apr 29, 2009
Replies
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8K
Help Needed: Oscillator Survey for High Quality Oscillators
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Replies
25
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5K
How Can I Suppress an Annoying PA System Annunciator Tone?
Apr 28, 2009
Replies
5
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High-Speed Angular Position Measurement for Precision Applications
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Replies
7
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3K
Is HHO Resonance a Real Discovery or a Scientific Hoax?
Apr 28, 2009
Replies
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21K
Increase the duty cycle of a pwm?
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Replies
2
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4K
Discover the Best 12V Solar Charger Circuit for Your FYP Project"
Apr 27, 2009
Replies
4
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3K
My made solenoid doesnt induce magnetic field. What did I miss?
Apr 25, 2009
Replies
5
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4K
Problem Building LC Parallel Tank Circuit: Seeking Help
Apr 25, 2009
Replies
8
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2K
Impulse Train vs Sampling Function
Apr 25, 2009
Replies
10
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12K
Is the Ground of a Car Battery Connected to Any Metal Surface on the Car?
Apr 25, 2009
Replies
5
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10K
How to transmit video long distance for cheap
Apr 25, 2009
Replies
1
Views
5K
Solve for Bmax: Quick Faraday Equation with Transformer Parameters
Apr 24, 2009
Replies
1
Views
2K
What is this weird protoboard resistor strip thing? dumb question yep
Apr 24, 2009
Replies
14
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7K
What Is Electricity? Examples & Explanations
Apr 24, 2009
Replies
6
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Ground Grid Study: Short Circuit Current Analysis
Apr 24, 2009
Replies
2
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2K
Can a laptop charger be made vampire-proof with a timer and check circuit?
Apr 23, 2009
Replies
8
Views
4K
Advice on a buffer/inverter chip
Apr 23, 2009
Replies
3
Views
4K
555 Timer RC Charging Capacitor Conundrum
Apr 23, 2009
Replies
5
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5K
Thevenin and Norton Equivalent Circuits problem
Apr 23, 2009
Replies
2
Views
8K
Question on current flow through polarized capacitors
Apr 23, 2009
Replies
6
Views
10K
Problems with Inverter and transformer
Apr 22, 2009
Replies
7
Views
4K
Connecting 3-Phase Windings to a 3-Phase Switch
Apr 22, 2009
Replies
8
Views
3K
Self Resonant Frequency in a Solenoid
Apr 22, 2009
Replies
13
Views
11K
Rectified AC through an AC transformer
Apr 21, 2009
Replies
9
Views
4K
Understanding the Bode Plot: Frequency vs. dB
Apr 21, 2009
Replies
4
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7K
How to build an RC circuit for intermittent light bulb?
Apr 21, 2009
Replies
10
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5K
Designing RF Antennas: From Intuition to Simulation Tools
Apr 21, 2009
Replies
3
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3K
Electronic device turned on in presence of tesla coil
Apr 21, 2009
Replies
1
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2K
Converting Pulsating Current to DC
Apr 21, 2009
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4
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2K
Minimize charging time of a battery
Apr 20, 2009
Replies
3
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2K
LM317 LDO pin compat replacement for CC op?
Apr 20, 2009
Replies
3
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7K
Maximizing Current Through a Coil Without Short Circuiting
Apr 19, 2009
Replies
9
Views
3K
Electrochemistry (batteries), Wheatstone bridge question.
Apr 19, 2009
Replies
6
Views
4K
Quantity referred to as 'self-capacitance
Apr 19, 2009
Replies
6
Views
9K
The Importance of Voltage in Electrical Components
Apr 18, 2009
Replies
4
Views
3K
Bandwidth Problem: Increase Gain & Keep Constant
Apr 18, 2009
Replies
2
Views
2K
Need a cheap binary AM transmitting circuit
Apr 17, 2009
Replies
2
Views
2K
What Experiments Can Prove Light and Wavelength Theory Using TCS230?
Apr 17, 2009
Replies
4
Views
7K
Change battery input with a power adaptor
Apr 17, 2009
Replies
8
Views
5K
Troubleshooting Unstable ADC Reading for PT100 Signal Circuit
Apr 16, 2009
Replies
7
Views
5K
What is the voltage drop across a diode when it is reverse biased?
Apr 16, 2009
Replies
6
Views
68K
Selective Dimmer for Two Light Sources
Apr 16, 2009
Replies
9
Views
2K
Need cheap way/product to produce acurrent at very low voltage.
Apr 15, 2009
Replies
10
Views
3K
Answer: Calculating Time to Discharge Capacitor Rated x Micro-Farads
Apr 15, 2009
Replies
5
Views
3K
Behaviour of LEDs in presence of magnetic fields?
Apr 14, 2009
Replies
3
Views
7K
Rev Counter Problem need info on a signal divider
Apr 14, 2009
Replies
3
Views
2K
Solving 82C55 Doubt: Usage & Examples
Apr 14, 2009
Replies
1
Views
2K
Learning device, help me expound: on Faraday's choice of ion , and unionized
Apr 13, 2009
Replies
2
Views
5K
What's the difference between an electron hole and a positron?
Apr 13, 2009
Replies
8
Views
13K
Replacing an Audio Transformer: EI-19 Output Specs and Replacement Guide
Apr 13, 2009
Replies
3
Views
4K
Power Factor and Inductance: How Does Varying Inductance Affect Power Factor?
Apr 13, 2009
Replies
17
Views
3K
A sort of free energy? Possbilble or not
Apr 13, 2009
Replies
2
Views
2K
How do you approach designing complicated circuits?
Apr 12, 2009
Replies
15
Views
3K
Building a Guitar Effects Pedal
Apr 12, 2009
Replies
10
Views
3K
DC to AC Converter: Understand Power Inverter Transistors & DC Source
Apr 11, 2009
Replies
3
Views
4K
Where do I get started with analog/digital circuit design?
Apr 11, 2009
Replies
5
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3K
Continuous Charge Distribution?
Apr 10, 2009
Replies
1
Views
2K
Good fluke meter runs around $300
Apr 10, 2009
Replies
9
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3K
Calculating Cable Size | Engineers Guide
Apr 10, 2009
Replies
6
Views
15K
Do real circuits need to be physically grounded?
Apr 10, 2009
Replies
7
Views
5K
Which voltage option for single phase supply?
Apr 10, 2009
Replies
3
Views
4K
Connecting 460V Motor to 480V Supply - Issues & Risks
Apr 10, 2009
Replies
1
Views
6K
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