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...
Magnets -- Experiments with sheets and particles
  • · Replies 3 ·
Replies
3
Views
1K
Please guide me to recharge a battery
  • · Replies 19 ·
Replies
19
Views
3K
Maximizing Efficiency: The Role of Feedback in Boost Converter Switch Design
  • · Replies 7 ·
Replies
7
Views
3K
Analysis Error in Electric Motor: Need Help To Resolve
  • · Replies 1 ·
Replies
1
Views
2K
The relationship of wire diameter and electricity produced
  • · Replies 4 ·
Replies
4
Views
3K
Voltage offset differential amplifier
  • · Replies 11 ·
Replies
11
Views
3K
Crank Generator: How Much Copper Wound Needed for 3V Output?
  • · Replies 5 ·
Replies
5
Views
1K
Boost converter inductor discharging question
  • · Replies 8 ·
Replies
8
Views
2K
Calculate collector current of phototransistor
  • · Replies 1 ·
Replies
1
Views
3K
NTC and comparator to detect temperature trip point
  • · Replies 4 ·
Replies
4
Views
2K
Effect of resistance on voltage flow in a wire
  • · Replies 9 ·
Replies
9
Views
3K
Can You Charge a 7.4V 850mAh Lipo Battery with a 10V 4mA Power Source?
  • · Replies 7 ·
Replies
7
Views
2K
Varying frequency of an LED drive circuit
  • · Replies 4 ·
Replies
4
Views
2K
Alternatives to GFCI: Ideas for Your Project
  • · Replies 2 ·
Replies
2
Views
2K
Are Utility Power Quality Issues Impacting Genset Stability?
  • · Replies 18 ·
Replies
18
Views
2K
Which is the correct diagram (synchronous alternator varying PF)
  • · Replies 11 ·
Replies
11
Views
3K
Capacitance of two unequal spheres
  • · Replies 6 ·
Replies
6
Views
2K
Current transformer for coupling noise into a cable
  • · Replies 42 ·
2
Replies
42
Views
5K
Electrostatic/electromagnetic noise and conductive area
  • · Replies 1 ·
Replies
1
Views
1K
The latest developments in energy storage technology
  • · Replies 75 ·
3
Replies
75
Views
8K
Drive 4 LEDs at 20mA with 12V Battery: Resistor Value?
  • · Replies 8 ·
Replies
8
Views
4K
TEG&Li+ batteries to power data collection sensors
  • · Replies 1 ·
Replies
1
Views
1K
Measuring AC current with an oscilloscope.
  • · Replies 7 ·
Replies
7
Views
3K
Is PCB Artist Layout Software a Viable Alternative to Eagle for PCB Design?
  • · Replies 2 ·
Replies
2
Views
2K
How Does Subtractive Dither Work
  • · Replies 3 ·
Replies
3
Views
3K
Magnetic field of Diametrically magnatized rod
  • · Replies 1 ·
Replies
1
Views
2K
SR830 lock-in amp measurement problem
  • · Replies 4 ·
Replies
4
Views
5K
Electrons in vacuum vs electrons in a sphere
  • · Replies 3 ·
Replies
3
Views
1K
Question about MOSFET Saturation region
  • · Replies 7 ·
Replies
7
Views
3K
Noise due to chattering of relay
  • · Replies 3 ·
Replies
3
Views
3K
What is the benefit of using an electromagnet in a generator
  • · Replies 2 ·
Replies
2
Views
2K
12VDC/2A power adapter to power two systems?
  • · Replies 3 ·
Replies
3
Views
2K
Discharging High Capacitance (6F @ 48v)
  • · Replies 25 ·
Replies
25
Views
3K
Determining the Fundamental Frequency Component
  • · Replies 5 ·
Replies
5
Views
3K
Reason and remedy for AC motor overheating?
  • · Replies 14 ·
Replies
14
Views
49K
Question about an LTI System and its Frequency Response
  • · Replies 2 ·
Replies
2
Views
2K
Basic phased array radar questions
  • · Replies 17 ·
Replies
17
Views
3K
How to Design a Donut Electromagnet
  • · Replies 12 ·
Replies
12
Views
5K
Would an Opamp work wired up like this?
  • · Replies 18 ·
Replies
18
Views
2K
12 Volt 100 Watt Bulb V 120 Volt Bulb 100 Watt
  • · Replies 7 ·
Replies
7
Views
4K
Electric Bicycle with no Battery
  • · Replies 3 ·
Replies
3
Views
1K
How can I calculate dilectric constant from conductivity
  • · Replies 6 ·
Replies
6
Views
2K
How Efficient Is Split-Return Coil Design for Quenching in Induction Heating?
  • · Replies 3 ·
Replies
3
Views
3K
Looking for an adapter to connect two different plugs
  • · Replies 7 ·
Replies
7
Views
1K
Parallel transformers - checking my models
  • · Replies 3 ·
Replies
3
Views
2K
Trouble Understanding RLC Circuits: Detailed Explanation for 250W Power Release
  • · Replies 3 ·
Replies
3
Views
2K
Layering different dielectric materials to increase breakdown voltage
  • · Replies 5 ·
Replies
5
Views
5K
How does an equivalent impedance consume a real power?
  • · Replies 12 ·
Replies
12
Views
3K
How Do Tesla's Induction Motors Work in Their Electric Vehicles?
  • · Replies 6 ·
Replies
6
Views
2K
Have 5.19V DC and want 5.00V DC .... please
  • · Replies 24 ·
Replies
24
Views
3K
Help designing/finding a vendor for this magnetic field
  • · Replies 12 ·
Replies
12
Views
3K
8 small 3-volt hobby motor/generator harvesting
  • · Replies 23 ·
Replies
23
Views
3K
Can Resistive Heaters Fail in Vacuum Due to Reasons Other Than Temperature?
  • · Replies 12 ·
Replies
12
Views
3K
Do resistor polarity assignments affect current flow in Kirchoff's second law?
  • · Replies 18 ·
Replies
18
Views
15K
Correcting power factor without affecting active power.......
  • · Replies 5 ·
Replies
5
Views
2K
Why is the Lorentz force calculated in Ansys Maxwell so low?
  • · Replies 2 ·
Replies
2
Views
4K
Tesla Coil Questions Answered - Learn More Here!
  • · Replies 4 ·
Replies
4
Views
3K
12V Wind Turbine - Voltage question
  • · Replies 55 ·
2
Replies
55
Views
17K
Need a little help (transformer)
  • · Replies 56 ·
2
Replies
56
Views
6K
Impedance matching concerns equivalent impedance of circuit?
  • · Replies 8 ·
Replies
8
Views
2K
Estimation of material loss through electrical resistivity
  • · Replies 4 ·
Replies
4
Views
1K
Slip test on salient pole machine
  • · Replies 7 ·
Replies
7
Views
6K
Constant voltage, variable current
  • · Replies 11 ·
Replies
11
Views
3K
Illuminating a Thyratron (mercury gas discharge)
  • · Replies 8 ·
Replies
8
Views
2K
Optical counterpart of duckbill check valve in fluid dynamics
  • · Replies 29 ·
Replies
29
Views
3K
Why Do We Use Squaring Instead of Absolute Value in Signal Power Calculations?
  • · Replies 3 ·
Replies
3
Views
2K
Current in Series: Why Does It Remain Same?
  • · Replies 36 ·
2
Replies
36
Views
4K
How Can Dynamic EMF Variation Enhance Bone Fracture Healing in Animal Studies?
  • · Replies 24 ·
Replies
24
Views
3K
2n3904/2n3906 driving mosfet gate
  • · Replies 5 ·
Replies
5
Views
4K
Creating Your Own Homemade Electroscope
  • · Replies 4 ·
Replies
4
Views
2K
Equal Input Voltages on Op-Amps
  • · Replies 4 ·
Replies
4
Views
2K
What is tangent of power factor angle for an alternator?
  • · Replies 17 ·
Replies
17
Views
6K
The slope of the tangent of the voltage curve.
  • · Replies 12 ·
Replies
12
Views
4K
How Does a Hot Wire Ammeter Achieve Thermal Equilibrium?
  • · Replies 5 ·
Replies
5
Views
5K
What Are Alternative Terms for Moving a Pickoff Point in Control Engineering?
  • · Replies 7 ·
Replies
7
Views
3K
How does one form an equation for adder/subtractor?
  • · Replies 5 ·
Replies
5
Views
2K
Need help understanding potential difference practically
  • · Replies 4 ·
Replies
4
Views
2K
Is there a loss of electrons in a generator circuit?
  • · Replies 1 ·
Replies
1
Views
1K
A block diagram reduction [sign error]
  • · Replies 13 ·
Replies
13
Views
4K
Where Does the Energy Go in an Electric High Pressure Water Motor or Pump?
  • · Replies 4 ·
Replies
4
Views
2K
Trying to model mutual inductance with losses
  • · Replies 1 ·
Replies
1
Views
2K
How to compute the location of the antenna when I rotate it?
  • · Replies 3 ·
Replies
3
Views
2K
Exploring Electrical Potential Energy Across Series Circuits
  • · Replies 3 ·
Replies
3
Views
2K
What Are Your Experiences and Suggestions for Lock-in Amplifiers?
  • · Replies 3 ·
Replies
3
Views
2K
How to simulate multipath signals?
  • · Replies 43 ·
2
Replies
43
Views
6K
Possible to convert a three phase motorcycle stator to single phase?
  • · Replies 9 ·
Replies
9
Views
8K
How did they hear small wavelengths (high frequencies) *before* superheterodyne?
  • · Replies 3 ·
Replies
3
Views
2K
Electronically Change Material Refractive Index
  • · Replies 4 ·
Replies
4
Views
4K
Question regarding Constant Current Modeling of Buck
  • · Replies 1 ·
Replies
1
Views
992
How would you make usable electricity before it's invented?
  • · Replies 18 ·
Replies
18
Views
2K
Joule heating in internal resistances of a solar cell
  • · Replies 2 ·
Replies
2
Views
2K
How do I shield an amp setting on my work bench from EMI
  • · Replies 12 ·
Replies
12
Views
2K
Differences Between Radios & Antennas for CCNA
  • · Replies 17 ·
Replies
17
Views
4K
Measuring Frequency of an EMF with Gaussmeter: An Inquiry
  • · Replies 3 ·
Replies
3
Views
2K
I want to make brushless motor.
  • · Replies 3 ·
Replies
3
Views
1K
DC motors in parallel causing voltage drop
  • · Replies 26 ·
Replies
26
Views
5K
How does ALFC and AVR maintain grid frequency and voltage in power systems?
  • · Replies 5 ·
Replies
5
Views
4K
How is instantaneous power adjusted in the electrical grid?
  • · Replies 8 ·
Replies
8
Views
2K
The Minimum voltage requirement for an RC Oscillator
  • · Replies 10 ·
Replies
10
Views
3K
Effect of EMF in a wire as opposed to a metal chassis?
  • · Replies 3 ·
Replies
3
Views
1K