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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
AC Current in GHz Frequency and Zero Resistance
Mar 23, 2017
Replies
9
Views
2K
Is There Truly No Current at Extreme AC Frequencies?
Mar 23, 2017
Replies
3
Views
1K
Infinite bandwidth of an ideal amplifier
Mar 23, 2017
Replies
13
Views
3K
Build a Magnet Generator with 42 Gauge Wire
Mar 22, 2017
Replies
5
Views
4K
Eval op amp achieves +/- power from single power supply?
Mar 22, 2017
Replies
5
Views
3K
How Energy Is Spread In An Electric Kiln
Mar 22, 2017
Replies
1
Views
1K
Problem in understanding Phase Relationships
Mar 22, 2017
Replies
6
Views
1K
Internal resistance of a cell varying with power drawn
Mar 22, 2017
Replies
2
Views
2K
How to increase the voltage by using CS5173?
Mar 22, 2017
Replies
6
Views
2K
How can I enhance RLD circuits with an LED for period doubling?
Mar 22, 2017
Replies
6
Views
2K
Alternatives for Cabling Support in 40 Floor Projects
Mar 22, 2017
Replies
2
Views
1K
Open Circuit Termination for Waveguides in High Frequency Labs
Mar 21, 2017
Replies
7
Views
4K
Model DC Motor: Torque, EMF, Resistance & Regulation
Mar 21, 2017
Replies
2
Views
1K
Number of turns vs. wire length affecting voltage in coil
Mar 21, 2017
Replies
10
Views
5K
Stress testing a wireless router
Mar 20, 2017
Replies
17
Views
3K
Computer Programs to help design circuits to hook up to a Raspberry Pi
Mar 20, 2017
Replies
3
Views
2K
Using 2N3904 for 3V audio preamp
Mar 20, 2017
Replies
5
Views
5K
How do I design a Permanent Magnet Synchronous Generator?
Mar 20, 2017
Replies
1
Views
2K
Loading / Rapid de-loading of DC motor
Mar 20, 2017
2
Replies
74
Views
6K
Capacitance for Voltage Multiplier
Mar 20, 2017
Replies
5
Views
8K
Switch Mode DC-DC step-down PSU design troubleshooting
Mar 19, 2017
Replies
12
Views
3K
Design a flyback transformer for charging defibrillator
Mar 19, 2017
Replies
7
Views
2K
What really is "energy" -- is it the amps or the wattage?
Mar 19, 2017
Replies
8
Views
2K
Electrocution by iPhone charger (involving a bathtub)
Mar 18, 2017
Replies
13
Views
3K
How to test a simple Dipole Antenna on Spectrum Analyser?
Mar 18, 2017
Replies
27
Views
9K
Are There Any Open Source Alternatives to LabView for Signal Monitoring?
Mar 17, 2017
Replies
8
Views
8K
Help understanding NMOS waveforms
Mar 17, 2017
Replies
5
Views
1K
How to make 3-phase contactor to chatter?
Mar 17, 2017
Replies
4
Views
3K
How Does Changing Load Capacitance Values Affect Crystal Oscillator Performance?
Mar 17, 2017
Replies
1
Views
2K
Combining two DC voltages for laser locking
Mar 16, 2017
Replies
1
Views
2K
Problem with Lock-in Amplifier (cannot lock the signal)
Mar 16, 2017
Replies
6
Views
3K
Loop Antennas vs. B-Probes: Similarities and Differences
Mar 16, 2017
Replies
4
Views
2K
Fully differential opamp for impedance matching
Mar 16, 2017
Replies
18
Views
5K
Electronics prep for hardware repairs
Mar 16, 2017
Replies
17
Views
2K
Trying to determine the size of Diodes required
Mar 15, 2017
Replies
7
Views
11K
A Physical Understanding of Kirchhoff's Laws
Mar 14, 2017
Replies
18
Views
4K
Understanding time delay estimation for GPS?
Mar 14, 2017
Replies
1
Views
2K
Antenna (Dipole) balun - what is it for?
Mar 14, 2017
Replies
14
Views
7K
Meaning of flush error received from mod-bus slave
Mar 14, 2017
Replies
8
Views
4K
Concerting 0.1" pitch header pins to 0.150"
Mar 14, 2017
Replies
3
Views
1K
Why Does Amplitude Not Matter in Positive Sequence Detector Circuits?
Mar 13, 2017
Replies
1
Views
2K
Save on Radio Shack Parts Before They're Gone - Up to 70% Off!
Mar 13, 2017
Replies
13
Views
1K
Difference between reverse bias and forward bias for a photodiode
Mar 13, 2017
Replies
8
Views
6K
Faraday Cage: Thickness of the conductor
Mar 13, 2017
Replies
4
Views
3K
Why reactive power is not tranferred between source and load
Mar 13, 2017
Replies
2
Views
1K
2A wireless charging mobile phone
Mar 12, 2017
Replies
1
Views
2K
Boost converter output voltage spike on startup
Mar 12, 2017
Replies
16
Views
4K
Decreasing gas breakdown distance in a spark gap with UV
Mar 12, 2017
Replies
1
Views
2K
Raspberry Pi connect to the RS232
Mar 12, 2017
Replies
2
Views
1K
What integrated circuits, etc. for an amateur?
Mar 12, 2017
Replies
2
Views
1K
Transistors: Tiny Silicon Crystals, Memory Cells, & Shrinking Bits
Mar 11, 2017
Replies
7
Views
2K
Grounding Phase: Explaining Star Configuration
Mar 11, 2017
Replies
6
Views
2K
Can a DC-AC Inverter Work for Light Loads on an Alarm System?
Mar 11, 2017
Replies
2
Views
2K
Does electricty gain / lose power traveling up / down hill? [Not]
Mar 10, 2017
Replies
35
Views
4K
Why “sudo cat /dev/ttyACM0” run only 1 time? (GPS)
Mar 10, 2017
Replies
9
Views
3K
Making a Simple Circuit with MOC3041 Optoisolator and BTA24 Triac
Mar 10, 2017
Replies
4
Views
6K
BLDC: Required voltage to get set rpm at given amps
Mar 10, 2017
Replies
19
Views
4K
Variable 100-350VAC output controlled by PLC?
Mar 10, 2017
Replies
5
Views
2K
DIN Rail Terminal Blocks: L/L, L/N, N/L and N/N?
Mar 10, 2017
Replies
7
Views
3K
Inductors Technologies: Molded vs. Air-Turned
Mar 10, 2017
Replies
5
Views
1K
Grounding out static charge using a battery.
Mar 10, 2017
Replies
4
Views
2K
Where can i learn to build circuits?
Mar 9, 2017
Replies
1
Views
1K
Switching 2 mainboards with one momentairy switch
Mar 9, 2017
Replies
2
Views
1K
Where can i find the source? (change the hdmi to another hdmi with Rapsberry Pi)
Mar 9, 2017
Replies
3
Views
2K
Disadvantage of having high neutral grounding resistance
Mar 9, 2017
Replies
4
Views
3K
Pulse current discharge test of a Li-ion
Mar 9, 2017
Replies
2
Views
2K
What type of resistor is needed for a dummy load on a 350W PC PSU?
Mar 9, 2017
Replies
3
Views
3K
Making an Arduino controlled H-bridge
Mar 8, 2017
Replies
9
Views
4K
How to check the condition of coil in the relay?
Mar 8, 2017
Replies
4
Views
2K
Zero sequence braking of induction motor
Mar 8, 2017
Replies
1
Views
3K
Can I extend my water pump's wiring to control it remotely?
Mar 7, 2017
Replies
11
Views
4K
Aircraft Start Sequence Trainer/Mockup
Mar 7, 2017
Replies
6
Views
2K
Can a Motor be Converted to a Dynamo and How to Do It?
Mar 6, 2017
Replies
4
Views
2K
Could PWM be applied to emulate resistance?
Mar 6, 2017
Replies
20
Views
2K
What is the voltage at the end of the circuit?
Mar 6, 2017
Replies
7
Views
5K
If a 1000kg Mass resting on a friction free airbed....
Mar 6, 2017
Replies
5
Views
1K
How can you really mess up in amateur electronics?
Mar 6, 2017
Replies
6
Views
2K
Maximizing Amps in Circuit with 90W Power Supply
Mar 5, 2017
Replies
1
Views
2K
Irrelevance of electrical potential
Mar 5, 2017
Replies
5
Views
2K
What are the best DC motors for moving heavy objects?
Mar 5, 2017
Replies
1
Views
934
Small Loop Antenna: Understanding Its Design as a Dipole or Monopole
Mar 5, 2017
Replies
1
Views
2K
Can we get Higher Frequencies from an Oven Magnetron?
Mar 5, 2017
Replies
7
Views
4K
Boost converter capacitor charging question
Mar 5, 2017
Replies
1
Views
1K
What thyristor, triac, diode, transistor for an amateur?
Mar 4, 2017
Replies
2
Views
1K
CPU Register Components: Buses and 1 Byte
Mar 3, 2017
Replies
5
Views
2K
Help with 12V LED and Power Source Questions
Mar 3, 2017
Replies
8
Views
3K
Why are magnetic loops used in amateur 8-shape antennae?
Mar 2, 2017
Replies
1
Views
1K
Why is EMF (ElectroMotive Force) equal to a voltage?
Mar 2, 2017
Replies
9
Views
4K
Why is the S-shaped antenna design popular?
Mar 2, 2017
Replies
8
Views
2K
Calculate the power loss in electrical cable
Mar 2, 2017
Replies
4
Views
10K
Dielectric Antennae: Energy Feed-In/Take-Out Explained
Mar 2, 2017
Replies
29
Views
4K
Couple of interesting electrical things in an old house
Mar 1, 2017
Replies
1
Views
2K
Question about the output voltage of 79L05
Mar 1, 2017
Replies
6
Views
3K
Is there an antenna with this shape?
Mar 1, 2017
Replies
11
Views
3K
Why do AM and FM waves have different bandwidths?
Mar 1, 2017
Replies
9
Views
3K
Choosing the Best DC Motor Brush Material: Tips and Recommendations
Mar 1, 2017
Replies
9
Views
5K
Discharge of a capacitor through a common ground
Feb 28, 2017
Replies
4
Views
2K
AC current / circuit simulation software
Feb 28, 2017
Replies
7
Views
3K
Neutral potential ground difference
Feb 28, 2017
Replies
5
Views
2K
What are different terms of flight controllers?
Feb 27, 2017
Replies
5
Views
1K
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