Electrical Engineering Forum

Post thread
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...
  • Sticky
Beauty of old electrical and measuring things, etc.
  • · Replies 701 ·
24
Replies
701
Views
118K
  • Sticky
What's in an electronics hobbyist's toolbox?
  • · Replies 160 ·
6
Replies
160
Views
133K
  • Sticky
Useful EE Links and Search Engines
  • · Replies 62 ·
3
Replies
62
Views
93K
  • Sticky
Insights When Renewable Energy Meets Power Grid Operations
  • · Replies 87 ·
3
Replies
87
Views
22K
Series motors, switched to parallel
  • · Replies 11 ·
Replies
11
Views
527
Do light bulbs store energy?
  • · Replies 14 ·
Replies
14
Views
744
Why must residential electrical systems be connected to Earth (soil)?
  • · Replies 40 ·
2
Replies
40
Views
2K
A few questions about RCD
  • · Replies 14 ·
Replies
14
Views
855
Conductor with high electron mobility (mean free path)
  • · Replies 1 ·
Replies
1
Views
291
Electronics Failing While In Storage
  • · Replies 12 ·
Replies
12
Views
643
Is it dangerous if there is a mains fault on a potable water pipe?
  • · Replies 12 ·
Replies
12
Views
755
uA709 op amp compensation
  • · Replies 11 ·
Replies
11
Views
1K
I'm trying to intuit how pull-up and pull-down resistors work
  • · Replies 33 ·
2
Replies
33
Views
3K
Hive Home Heating network performance
  • · Replies 3 ·
Replies
3
Views
500
Electric power distribution from powerplant to homes
  • · Replies 30 ·
2
Replies
30
Views
2K
I thought it was only Amazon that sold unsafe junk
  • · Replies 10 ·
Replies
10
Views
820
Utility Scale PV Arrays Located near HV Transmission Lines: Minimum Allowable Distance
  • · Replies 2 ·
Replies
2
Views
478
Simple timed controller
  • · Replies 5 ·
Replies
5
Views
570
One pin AC connector (Coaxial)
  • · Replies 25 ·
Replies
25
Views
2K
Net metering - hybrid solar inverter system question
  • · Replies 9 ·
Replies
9
Views
1K
What Caused the Recent Power Outage in Spain, Portugal, and Southern France?
  • · Replies 61 ·
3
Replies
61
Views
6K
Synchronous Condensers for Power Grid Stabilization
  • · Replies 6 ·
Replies
6
Views
880
How might electronics be different if AC voltage was 72V at 45 Hz?
  • · Replies 30 ·
2
Replies
30
Views
1K
Creating a solenoid with varying magnetic field
  • · Replies 2 ·
Replies
2
Views
580
Krytrons... again! :0)
  • · Replies 11 ·
Replies
11
Views
1K
Visualize Electromagnetic Fields from Dipole Antennas
  • · Replies 4 ·
Replies
4
Views
1K
Lo
  • · Replies 2 ·
Replies
2
Views
958
RF magnetic field generation
  • · Replies 10 ·
Replies
10
Views
2K
Question about bonding ground and neutral
  • · Replies 7 ·
Replies
7
Views
2K
E-Bike/Scooter Li Battery Fires
  • · Replies 26 ·
Replies
26
Views
3K
Why does the amperage go real high if there is a low voltage short?
  • · Replies 17 ·
Replies
17
Views
1K
What happens if shielded cable has a short to the shield?
  • · Replies 17 ·
Replies
17
Views
1K
Frequency Comb (Photonics, Optics)
  • · Replies 3 ·
Replies
3
Views
656
How Does Jaguar's 1980s V12 Dual Coil Ignition System Enhance Spark Strength?
  • · Replies 2 ·
Replies
2
Views
790
Electromagnet magnetic field issue
  • · Replies 27 ·
Replies
27
Views
1K
What is the difference between a switch leg and a hot leg?
  • · Replies 38 ·
2
Replies
38
Views
3K
Underwater piezoelectric sensor array receive sensitivity
  • · Replies 16 ·
Replies
16
Views
907
Following up on the recent thread about Earth Resistance measurements
  • · Replies 53 ·
2
Replies
53
Views
4K
Increasing magnetic field above the surface in a resonator
  • · Replies 1 ·
Replies
1
Views
550
Question about the voltage between two charged capacitors
  • · Replies 4 ·
Replies
4
Views
709
3-terminal device external modeling
  • · Replies 14 ·
Replies
14
Views
651
EMF (Electromagnetic Field) & EHS (Electromagnetic Hyper Sensitivity)
  • · Replies 3 ·
Replies
3
Views
619
Weird near-field phenomenon I get in my EM simulation
  • · Replies 11 ·
Replies
11
Views
1K
Optical-EME for licensed amateur radio operators
  • · Replies 19 ·
Replies
19
Views
2K
When 50,000 volts go through a wire at 5,000,000 FPS - The Slow Mo Guy
  • · Replies 21 ·
Replies
21
Views
931
Converting PSD into equivalent sound pressure for an underwater hydrophone
  • · Replies 3 ·
Replies
3
Views
1K
Multiple signals controlling relay
  • · Replies 7 ·
Replies
7
Views
830
Tuning anapole resonator question
  • · Replies 2 ·
Replies
2
Views
612
Capacitor charge time, two conflicting answers
  • · Replies 6 ·
Replies
6
Views
767
Electronic (6v) Lamp failed - troubleshooting
  • · Replies 12 ·
Replies
12
Views
2K
Digital phase converters for running 3-phase motors
  • · Replies 27 ·
Replies
27
Views
888
Sterilizing Medical Devices that contain Electronic Components
  • · Replies 4 ·
Replies
4
Views
835
How Are USB Ports Waterproofed in Mobile Devices?
  • · Replies 7 ·
Replies
7
Views
935
Using Latex Code for Circuit Diagrams
  • · Replies 25 ·
Replies
25
Views
3K
Eliminating a differential of an e-rickshaw by using 2 motors.
  • · Replies 3 ·
Replies
3
Views
699
Vector/Phasor Addition
  • · Replies 20 ·
Replies
20
Views
1K
Earth ground resistance measurement
  • · Replies 8 ·
Replies
8
Views
1K
Life expectancy of a domestic PV system
  • · Replies 12 ·
Replies
12
Views
2K
Ground loop on electronic audio systems
  • · Replies 28 ·
Replies
28
Views
1K
Current distribution in resonant mode for an anapole resonator
  • · Replies 0 ·
Replies
0
Views
761
Low Voltage Distribution Board ( TGBT )
  • · Replies 1 ·
Replies
1
Views
826
Vacuum cleaner series universal motor triac control board
  • · Replies 3 ·
Replies
3
Views
1K
Antique electric railway maintenance equipment
  • · Replies 1 ·
Replies
1
Views
835
Capacitor charging: Where do extra electrons come from?
  • · Replies 3 ·
Replies
3
Views
1K
What's the Athena (Silvaco) code for pyramid texturing on a solar cell?
  • · Replies 10 ·
Replies
10
Views
1K
Help me breadboard my circuit
  • · Replies 10 ·
Replies
10
Views
2K
How to Measure Current in a Hall Bar Device Using SR830 Lock-in Amplifier?
  • · Replies 5 ·
Replies
5
Views
1K
Maxwell Linear Generator (Input Power < Output Power and losses?)
  • · Replies 2 ·
Replies
2
Views
1K
Flux direction through core
  • · Replies 6 ·
Replies
6
Views
1K
Spark Gap Tesla Coil not working
  • · Replies 2 ·
Replies
2
Views
1K
Draining batteries into fewer batteries
  • · Replies 13 ·
Replies
13
Views
1K
How does AM broadcasting/receiving work + a project for HS students?
  • · Replies 20 ·
Replies
20
Views
2K
Excitation of wispering gallery mode in resonator
  • · Replies 4 ·
Replies
4
Views
1K
Charging and discharging a battery at the same time
  • · Replies 2 ·
Replies
2
Views
1K
Manual frequency tuning of a sapphire resonator
  • · Replies 2 ·
Replies
2
Views
1K
Help with Ansys Electronics error please: "The quality of some mesh elements is not acceptable for solution"
  • · Replies 2 ·
Replies
2
Views
2K
Instrumentation Amplifier for Wheatstone Bridge Output
  • · Replies 27 ·
Replies
27
Views
4K
Alternative formulas for Ohms law
  • · Replies 4 ·
Replies
4
Views
1K
Is my contractor upselling me?
  • · Replies 28 ·
Replies
28
Views
2K
Relay Control of Induction Motors
  • · Replies 5 ·
Replies
5
Views
1K
DC-Link Capacitor Current Modeling for a Voltage Source Inverter
  • · Replies 1 ·
Replies
1
Views
2K
Can a 2' Multicolor LED Strip Be Powered by Two CR2032 Batteries?
  • · Replies 8 ·
Replies
8
Views
3K
(I) [Inquiry] Analyzing a Commercial Smart Glass Product
  • · Replies 6 ·
Replies
6
Views
2K
What Do Amp Ratings on Automotive Relays Mean?
  • · Replies 10 ·
Replies
10
Views
2K
Variable Gain Preamplifier using dc control voltage
  • · Replies 9 ·
Replies
9
Views
1K
Does placing two inductors in series make a current lag of 180 degrees?
  • · Replies 3 ·
Replies
3
Views
1K
Wireless control of mains outlets -- which system to use?
  • · Replies 3 ·
Replies
3
Views
2K
Cost Efficiency Study Comparation of PMSM and BLDC Motor
  • · Replies 3 ·
Replies
3
Views
2K
Elevation angle of a phased array antenna
  • · Replies 6 ·
Replies
6
Views
2K
Multiple electric generators on the same drive shaft
  • · Replies 3 ·
Replies
3
Views
1K
Leeson feedback mechanism question
  • · Replies 1 ·
Replies
1
Views
1K
Superconductor at room temp
  • · Replies 9 ·
Replies
9
Views
2K
Query about single-ended LED tubes
  • · Replies 10 ·
Replies
10
Views
2K
Power wheelchair switches off and shows two red lights flashing
  • · Replies 8 ·
Replies
8
Views
4K
Analyzing pushbutton switch ADC circuit edge cases
  • · Replies 4 ·
Replies
4
Views
1K
How does a Permanent capacitor motor actually work?
  • · Replies 7 ·
Replies
7
Views
2K
LTSpice DC - AC Inverter Schematic Help
  • · Replies 4 ·
Replies
4
Views
2K
Help with CE-102 test -- failing with emissions too high
  • · Replies 16 ·
Replies
16
Views
3K
Low-noise Amplifier for a sensitive radio receiver
  • · Replies 4 ·
Replies
4
Views
1K
Noticed something in a clockwatch
  • · Replies 12 ·
Replies
12
Views
2K
PVC Induction Heating Coil Design (early thoughts)
  • · Replies 51 ·
2
Replies
51
Views
4K
To detect 12V using Opamp
  • · Replies 17 ·
Replies
17
Views
2K
Dual band gap resonator design question
  • · Replies 6 ·
Replies
6
Views
2K
Need help wiring a motor switch
  • · Replies 9 ·
Replies
9
Views
2K