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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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Power grid & generator questions
Aug 8, 2018
Replies
46
Views
6K
What is the difference between Earth ground and circuit common?
Aug 7, 2018
2
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Where to Buy Electronic Components Online?
Aug 7, 2018
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Best way to heat up metal plates?
Aug 6, 2018
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Hello, can somebody check my transistor amplifier schematic?
Aug 6, 2018
2
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7K
How is impedance matched with RF connectors?
Aug 3, 2018
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LED to come on with battery power when it's too dark for the solar panel
Aug 2, 2018
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1K
Current rating for an electromechanical contactor
Aug 2, 2018
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4
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Power plant generator improvement
Aug 1, 2018
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20
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3K
Measuring very small voltages and currents
Aug 1, 2018
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16
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2K
Circulating currents in a delta winding
Jul 31, 2018
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20
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16K
Can I Double Protect My Outlets with Outlet Surge Protectors?
Jul 30, 2018
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5
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2K
High Power Amplifier for Acoustic Transducer
Jul 29, 2018
Replies
2
Views
1K
How does this 1971 directional flasher switch work?
Jul 29, 2018
Replies
17
Views
2K
Winding Direction Consideration (Proper Winding)
Jul 29, 2018
Replies
6
Views
3K
What are the best software options for simulating semiconductor gas sensors?
Jul 28, 2018
Replies
3
Views
1K
Calculating Q-Factor and Resistance for Series LC Filters
Jul 28, 2018
Replies
4
Views
2K
Why does a coil squash my function generator signal?
Jul 27, 2018
Replies
25
Views
6K
Simulink bloc of PMSM (permanent magnet synchronous motor) parameters
Jul 27, 2018
Replies
2
Views
3K
How does an Op-Amp "find" equilibrium (w/ Negative Feedback)?
Jul 25, 2018
2
Replies
50
Views
7K
Want to build a simple audio filter
Jul 22, 2018
Replies
3
Views
2K
Interest of IQ (QAM) processing at receiver level
Jul 20, 2018
Replies
6
Views
1K
Hi, has anybody had trouble building the ELENCO 108 AM/FM RADIO KIT
Jul 19, 2018
2
Replies
55
Views
7K
Converting impedence response to electrical conductivity
Jul 19, 2018
Replies
25
Views
4K
New Medical Equipment Standards Impact Power Supply Selection and More
Jul 18, 2018
Replies
3
Views
1K
TTL, voltage, one-wire test rig
Jul 18, 2018
Replies
34
Views
4K
Making a safe and effective fly zapper
Jul 14, 2018
Replies
17
Views
5K
Is the Offset Fed Satellite Dish on the Police Station Safe?
Jul 14, 2018
Replies
9
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2K
Electric racing -- Custom 4WD Electric Race Car Advice Please
Jul 12, 2018
Replies
15
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2K
Creating oscillations on the output of a DC power supply
Jul 12, 2018
Replies
11
Views
3K
Efficient DC Estimator Algorithms for Half-Cycle Sampled Signals
Jul 11, 2018
Replies
15
Views
2K
Help understanding Armstrong's 1924 Superheterodyne Radio Receiver
Jul 11, 2018
Replies
8
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3K
Ohmic Resistance and Logic gates
Jul 11, 2018
Replies
10
Views
2K
Post with wireless electricity is it possible?
Jul 10, 2018
Replies
28
Views
3K
Hello, I with this circuit, an RF oscillator
Jul 10, 2018
Replies
39
Views
6K
An inductor and a capacitor with a state
Jul 7, 2018
Replies
1
Views
1K
Solar PV:What happens to the lost energy?inductive recovery?
Jul 7, 2018
Replies
2
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1K
Solving for Attenuation Constant with Power Relations
Jul 7, 2018
Replies
1
Views
1K
Dielectric Rod Antenna: Can It Radiate?
Jul 7, 2018
Replies
36
Views
6K
Logic gate question -- Tying both inputs of a gate together
Jul 6, 2018
Replies
16
Views
5K
External-excitation Van de Graaff polarities
Jul 6, 2018
Replies
2
Views
2K
How small can a magnetron be made?
Jul 5, 2018
Replies
6
Views
3K
Is it possible to charge/discharge this cap fast enough?
Jul 4, 2018
Replies
9
Views
2K
Understanding magnetic balance in AC induction motors
Jul 4, 2018
Replies
13
Views
4K
The role of permanent magnets coupled with solenoids
Jul 4, 2018
Replies
7
Views
3K
Cellular Spectrum Bandwidth: How Much Space is Needed for a Single Call?
Jul 2, 2018
Replies
15
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2K
Understanding Electric Car NOS to How it Works
Jul 1, 2018
Replies
3
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1K
Can You Find Affordable DSPs Capable of 16 MHz ADC and 512-Point FFT?
Jun 29, 2018
Replies
5
Views
1K
Radar Cross section Vs Reflection Coefficient
Jun 29, 2018
Replies
3
Views
3K
How to calculate triac angle to set desired RMS voltage
Jun 28, 2018
Replies
11
Views
4K
Calculating Transfer Function of a Curve: A Beginner's Guide
Jun 27, 2018
Replies
3
Views
2K
How to cut down 12 volts to 1.5 volts
Jun 26, 2018
Replies
22
Views
6K
Can we accurately model transformer oil degradation with mathematical equations?
Jun 26, 2018
Replies
5
Views
2K
Unknown Instrumentation: Antenna voltage monitor?
Jun 25, 2018
Replies
16
Views
2K
Selecting an MOV for a power supply
Jun 25, 2018
Replies
13
Views
2K
What does a lightbulb prefer? Volts or Amps?
Jun 24, 2018
Replies
13
Views
3K
Potentiometer or Rheostat: Which is more versatile in circuit design?
Jun 24, 2018
Replies
5
Views
2K
Length of time needed to measure digital clock accuracy
Jun 23, 2018
Replies
26
Views
4K
Best PCB pad finish for repeated solder jobs?
Jun 22, 2018
Replies
6
Views
2K
How to calculate the cable size between QRM and transformer
Jun 21, 2018
Replies
5
Views
5K
Equations for three inductors connected together
Jun 20, 2018
Replies
4
Views
2K
Convert Power to a Peak Voltage, when to multiply by sqrt(2)
Jun 20, 2018
Replies
2
Views
2K
Nanosecond Max Current of Residual-Current Circuit Breaker
Jun 20, 2018
Replies
5
Views
2K
Where can I find common parameters of power transformers?
Jun 20, 2018
Replies
8
Views
2K
Sudden reversal in a simple 3-phase motor's direction
Jun 20, 2018
Replies
27
Views
6K
Wanted: B Level Explanation of Conduction and Resistance
Jun 15, 2018
2
Replies
59
Views
8K
Single phase AC 3 wire neutral conductor shock potential?
Jun 13, 2018
Replies
6
Views
2K
Helmholtz synthesizer experiment
Jun 11, 2018
Replies
16
Views
2K
The direction of an electrical current
Jun 10, 2018
Replies
39
Views
6K
Observed battery set discharge unbalance
Jun 10, 2018
Replies
15
Views
2K
Powering a 3W LED circuit or driver?
Jun 10, 2018
Replies
14
Views
3K
Powerline cable count and engineering question (HV power distribution lines)
Jun 9, 2018
Replies
31
Views
5K
Is seeing believing in physics?
Jun 8, 2018
Replies
4
Views
1K
Audio Signal Generator: Cheap & Ready-Made
Jun 8, 2018
Replies
4
Views
2K
Phase of a Wein Bridge Oscillator (AC Mains Harmonics Analyzer)
Jun 3, 2018
Replies
17
Views
3K
Some fundamental questions about pn junctions
Jun 3, 2018
Replies
10
Views
2K
Breakdown Voltage Depends on Field Uniformity?
Jun 2, 2018
Replies
3
Views
2K
Solving 2D FEM Error with Maxwell Version 17
May 31, 2018
Replies
1
Views
3K
Accelerated lifetime / thermal ageing of power cables
May 31, 2018
Replies
10
Views
2K
How Do Raman and Brillouin Scattering Differ at the Atomic Level?
May 31, 2018
Replies
2
Views
8K
Semiconductor substrate/Al_Comsol
May 31, 2018
Replies
2
Views
1K
Fixing Dented Capacitors on a RC Helicopter Receiver Board
May 30, 2018
2
Replies
54
Views
8K
Relay Insulation: Microsemi BR246-S0233 - Why Resistance Changes?
May 30, 2018
Replies
12
Views
2K
Schematic for a Tenma DC Power Supply 705-72
May 29, 2018
Replies
4
Views
2K
Load matching/impedance matching
May 28, 2018
Replies
7
Views
3K
Identifying a board component out of Clare A433
May 27, 2018
Replies
15
Views
3K
Simplifying Electrical Mathematics in Certain Scenario
May 25, 2018
Replies
2
Views
1K
Induced voltage in a coil in a three phase permanent magnet axial flux generator
May 24, 2018
Replies
4
Views
4K
What is the direction of the electric field inside a battery?
May 24, 2018
Replies
8
Views
2K
Why Don't We Add Potentials in a Forward-Biased PN Junction?
May 23, 2018
Replies
14
Views
2K
Phase modulation and intermodulation anomaly *Plots inside*
May 23, 2018
Replies
2
Views
2K
What makes a yagi antenna directional?
May 23, 2018
Replies
7
Views
4K
Lattice Diagram of a transmission line
May 22, 2018
Replies
1
Views
2K
High Frequency Electromagnet Possible?
May 19, 2018
Replies
14
Views
4K
How do I find out the flux for an air core inductor
May 18, 2018
Replies
5
Views
2K
Will the maximum discharge current double for two parallel batteries?
May 18, 2018
Replies
4
Views
2K
Self-inductance of a toroid with a rectangular cross section
May 17, 2018
Replies
1
Views
2K
Hillbilly Fractal Antenna Reflector (and digital TV antenna suggestions)
May 17, 2018
Replies
17
Views
8K
Is it possible to convert a DC motor to a Stepper motor?
May 17, 2018
Replies
5
Views
4K
How Do I Calculate Induced Voltage in Parallel Conductors?
May 16, 2018
Replies
16
Views
3K
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