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...
TFT LCD Display - where is the circuitry?
Replies
11
Views
8K
Help with Integral Time (Ti) and Derivative Time (Td)
Replies
11
Views
10K
Impedance calculator for asymmetric differential stripline
Replies
1
Views
3K
BDC motor has 8 brushes -- Why?
Replies
2
Views
1K
Help with buck and boost converter
Replies
6
Views
2K
Why does Piezoelectric output voltage dropped when load is added?
Replies
12
Views
3K
Role of gain in amplifier's frequency compensation....
Replies
47
Views
5K
Calculate the rise in temp in copper 3 core wire
Replies
4
Views
3K
Trying To Find IBM TrueNorth Processor Information
Replies
10
Views
2K
What is this -- can you figure it out? (identify this piece of equipment)
Replies
32
Views
3K
How PMMC and MI Instruments Read Average Values for DC Waveforms
Replies
10
Views
3K
Maximization of motor speed/torque
Replies
11
Views
2K
Can a Center Tapped LC Circuit Reduce Potential Difference Across the Inductor?
Replies
4
Views
2K
Need some insight into an inverting op amp example
Replies
7
Views
2K
High voltage voltage controlled linear variable resistor
Replies
2
Views
4K
Paralleling Generators: Effect of Long Term Use in Private Network
Replies
11
Views
2K
Adjust supply voltage based on divider resistance
Replies
13
Views
2K
Program for drawing communication figures
Replies
8
Views
2K
Faraday cage to block cellphone/Wifi?
Replies
9
Views
6K
Inductance of Square Coil Antenna on PCB
Replies
7
Views
3K
Can You Help Me Achieve a 5x DC Gain for Opamp Output Voltage?
Replies
31
Views
4K
The highest frequency of ac current?
Replies
1
Views
1K
AC Circuits: Understand Vpp, Vp & Vrms
Replies
3
Views
15K
Magnetic Breakdown in Ferromagnetic Core: How Does It Happen?
Replies
3
Views
1K
Advice on buying a power supply
Replies
7
Views
2K
Why Is the BJT's Active Region Called Saturation When Ic Remains Constant?
Replies
4
Views
4K
Opamp Problem Solving: A Systematic Approach Using Assumptions and KCL Equations
Replies
3
Views
2K
Removing a Varying DC Offset from a Digital Signal
Replies
9
Views
4K
Reverse relay and travel limit switch - PLC
Replies
7
Views
5K
Brushed motor speed controller using twist throttle
Replies
5
Views
2K
Nodal Analysis: Understanding KCL and Node Subtraction in Circuit Problems
Replies
9
Views
2K
I to V Conversion w/ Photodiode & IV Converter
Replies
20
Views
3K
Suggestions for delay circuit for dc power
Replies
20
Views
2K
If gradient of potential is zero, how is there a field?
Replies
7
Views
1K
What is more effective -- Current or Voltage?
Replies
9
Views
2K
How to show Q1/Q2 = k in a Dielectric
Replies
5
Views
2K
Driving three phase induction motor with single phase supply
Replies
3
Views
2K
SONET protocol for data transmission over fiber optics
Replies
6
Views
2K
Power Transmission through Transmission Lines
Replies
4
Views
2K
Help with OP AMP Circuit Question
Replies
2
Views
1K
Are there any alternatives for batteries?
Replies
40
Views
5K
How can symmetry be applied in analyzing electric circuits?
Replies
5
Views
2K
PSPICE Error when trying to run simulation
Replies
7
Views
5K
Using Electromagnet to Detect Steel Door
Replies
28
Views
3K
What Type of Audio Amplifier is Best for Sonoluminescence Experiments?
Replies
7
Views
2K
Understanding CTs and PTs in SLD
Replies
2
Views
3K
How does negative feedback affect op-amp response?
Replies
13
Views
4K
Help with my math in this 2nd order audio filter circuit
Replies
6
Views
2K
Why isn't Reactive Power defined as Q = S - P ?
2
Replies
76
Views
11K
Do Joule Thief's Work With Supercapacitors
Replies
13
Views
4K
Depletion zone and current in forward-biased PN junction
Replies
3
Views
3K
How to analyze AC using radians and degrees
Replies
7
Views
5K
How can i generate an 8 hertz AC current from 60 hz AC
Replies
5
Views
2K
How Can I Improve My Homemade Wind Turbine's Charging System?
Replies
1
Views
1K
Protect Your Amplifier Modules with RF Pre-Amp Protection
Replies
8
Views
2K
Is the Hot Rod Deluxe III Schematic Helpful for Troubleshooting My Amp?
Replies
7
Views
2K
Expressing Phase in Degrees: Benefits & Challenges
Replies
12
Views
3K
Thermoelectric Modules: Heat/Cold Ratio for Voltage
Replies
2
Views
1K
What Diode Has a Low Turn-On Voltage and Through-Hole Termination?
Replies
5
Views
2K
Understanding 132kV Transformer Incomer CTs and Their Core Numbers
Replies
3
Views
1K
Understanding Harmonic Resonance and Filtering in Power Systems
Replies
2
Views
1K
Suggestion for an inexpensive non-linear load for 230/115?
Replies
13
Views
1K
Hobbyist Electronic Bench Ground Setup: Best Way
Replies
29
Views
4K
Why are relays used in circuits?
Replies
14
Views
5K
Do we get 2x the frequency when doing P=VI for AC Circuits?
Replies
6
Views
2K
Can you explain this amplifier circuit to me?
Replies
10
Views
4K
Electron Density when Introducing Impurites
Replies
1
Views
2K
Clean way to run 3 phase induction motor
Replies
13
Views
3K
What is the problem with leakage inductance?
Replies
16
Views
5K
What's the equivalent resistance between point A and B?
Replies
16
Views
2K
BJT Switch - Circuit Simulation
Replies
5
Views
4K
Creating Homemade Ferrofluid: Choosing the Right Solvent and Preventing Stains
Replies
2
Views
2K
Charging Super Capacitor w/Buck Converter: Max Voltage Draw?
Replies
5
Views
1K
Inductance of a straight conductor
Replies
6
Views
3K
DC voltage startup surge in my SMPS
Replies
13
Views
3K
Does a photo-resistor create an AC current?
Replies
12
Views
2K
Variable speed control of multiple dc motors
Replies
28
Views
4K
Can I Build a 120V Switch Mode Power Supply?
Replies
8
Views
2K
The Energy of Railgun's projectile
Replies
6
Views
2K
Create a Simple Indicator System for a 6V Toy Car
Replies
5
Views
1K
Help with current flow, voltage, resistors in basic circuit
Replies
21
Views
3K
Small DC motor run by a super capacitor - Is it possible?
Replies
18
Views
11K
Microphone (Analog) to Ethernet (Digital) to Speaker (Analog) system
Replies
13
Views
3K
Odd voltage reading from digital volt meter
Replies
15
Views
2K
How can I calculate the delay time of a choke?
Replies
8
Views
3K
Induction heating by AC magnetic field-magnetic hyperthermia
Replies
2
Views
2K
Plotting Bode of Resistor w/ DC Source: 20*log(0)
Replies
12
Views
2K
How are phasors obtained from real values in AC?
Replies
1
Views
1K
What is wrong with my oscilloscope?
Replies
7
Views
1K
Questioning RF Frequency & Filters
Replies
3
Views
2K
Coilgun capacitor charging circuit questions
Replies
2
Views
2K
How Do You Sum Two DC Voltages in a Laser Spectroscopy Circuit?
Replies
3
Views
4K
DC-voltage sweep @CST Design Studio
Replies
2
Views
2K
Impedance matching and tuning RF coil
Replies
2
Views
3K
Book or free video course on alternator design
Replies
2
Views
1K
Measuring low Electromagnetic field
Replies
6
Views
1K
What does more/less voltage mean?
Replies
17
Views
4K
Transistor 2N4401: DC Current Gain (hFE) for 5V/60mA
Replies
7
Views
4K
Using a Servo motor as load on a system
Replies
1
Views
1K
How does a Wheatstone Bridge work?
Replies
18
Views
5K