Electrical Engineering Forum

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...

Threads

Will current flow without a return path to ground?

  • Good4you
  • · Replies 27 ·
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27
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11

What do I need for a solar powered extractor fan?

  • flapcats
  • · Replies 7 ·
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7
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14

Replacing a Ni-Mh battery to AC input?

  • hermtm2
  • · Replies 13 ·
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13

Using a DC Choke in Resonant Circuits w/ Capacitors

  • Idea04
  • · Replies 2 ·
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2

Can DC Injection Power Bluetooth Devices?

  • ojsimon
  • · Replies 5 ·
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5

Neutral Compensator: Learn More About It

  • Sidharrth.N
  • · Replies 5 ·
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5
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6

How can reversing current affect battery charging?

  • spidey
  • · Replies 5 ·
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5

Amateur radio + typical bandwidth of RTTY, PSK31, FSK

  • JamesGoh
  • · Replies 1 ·
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1

Understanding Optocoupler circuit

  • shahper
  • · Replies 5 ·
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5

Controlling 40 seven-segment displays with one microcontroller

  • Yportne
  • · Replies 13 ·
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13

What exactly are integrated circuits?

  • Benjamin113
  • · Replies 6 ·
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6

Understanding PIN Photodetector Bandwidth for Vibration Sensing

  • roujhan
  • · Replies 6 ·
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6

Why isn't my LC series circuit working with the capacitor backwards?

  • Idea04
  • · Replies 15 ·
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15

Optical Theremin - Photocell Question

  • k_squared
  • · Replies 2 ·
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2

Multiple gsm modules, one antenna

  • overmindx
  • · Replies 1 ·
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1

What Is the Best Low-Cost Material for Generator Windings?

  • neduet
  • · Replies 5 ·
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5

How to Design a Variable Timed Circuit Cut Off?

  • GreasyBob
  • · Replies 1 ·
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1

Seeking advice for design of homemade DC Motor

  • Haxord
  • · Replies 1 ·
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1

Swap batteries between an experiment and a charger

  • 0xDEADBEEF
  • · Replies 2 ·
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2

BNC connector noise in high-bandwidth photocurrent amplifier

  • nitin.jain
  • · Replies 13 ·
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13

How does an integrator circuit with Vref and Vchange work?

  • sr_sample
  • · Replies 22 ·
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22

IEC 60529 Definition of "Finger Safe" for Cylinders

  • DTM
  • · Replies 5 ·
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5

Bike light design - will this work?

  • crank
  • · Replies 10 ·
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10

Measuring 1000V DC capacitor voltage with microcontroller isolation

  • Jdo300
  • · Replies 10 ·
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10

External Clock usage on a msp430 dev tool kit

  • vky
  • · Replies 1 ·
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1

How does this Dark Meter work?

  • AntiStrange
  • · Replies 5 ·
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5

How To Remove Coating On Very Thin Headset Wires?

  • Lancelot59
  • · Replies 25 ·
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25

Why does charge neutrality apply to BJT base transit time?

  • solanojedi
  • · Replies 4 ·
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4

TV antenna positioning and UHF reception after digital switchover

  • oldsloguy
  • · Replies 25 ·
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25

Teach yourself kit on how to use capacitors and resistors

  • Yportne
  • · Replies 4 ·
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4

Analog Signal Loop/Switch Control?

  • jb1
  • · Replies 1 ·
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1

LTSpice question, dependent sources.

  • Redbelly98
  • · Replies 2 ·
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2

How Many Amp Hours Are in 3.2 MJ?

  • djkwolf
  • · Replies 8 ·
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8

How to match phase of generated 60 Hz noise for cancellation

  • m718
  • · Replies 3 ·
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3

Measuring MOSFET temperature w. sensor

  • Jdo300
  • · Replies 3 ·
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3

Electric Potential and Potential Energy in a Circuit

  • Red_CCF
  • · Replies 9 ·
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9

Detecting Shorted MOSFETs in Output Stage

  • Jdo300
  • · Replies 5 ·
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5

Thermal noise in low pass filters: RC versus LC designs

  • 0xDEADBEEF
  • · Replies 10 ·
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10

Why won't ground reroute the general home circuit?

  • foo
  • · Replies 9 ·
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9

Why does a battery with one terminal grounded not discharge to ground?

  • jachyra
  • · Replies 8 ·
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8

Impedance of voltage source, and tank ckt

  • fleem
  • · Replies 1 ·
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1

Where Can I Find Detailed Plans for Building a Real Railgun?

  • arumz
  • · Replies 7 ·
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7

How are lighthouses powered? using cables?

  • chhitiz
  • · Replies 9 ·
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9

Multi-Phase or more then three phase

  • muet
  • · Replies 8 ·
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8

Creating a Device from Patent Info: Is it Legal?

  • Electrified!
  • · Replies 2 ·
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2

Does the brain pick up on electronic signals?

  • jreelawg
  • · Replies 11 ·
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11

Controlling 20 digital inputs and outputs via USB

  • Liad
  • · Replies 5 ·
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5

How Do I Calculate the Correct Resistance for a Phototransistor Circuit?

  • StealthRay
  • · Replies 21 ·
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21

Transconductance of a differential pair

  • bitrex
  • · Replies 4 ·
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4

Calculating Battery Life: Is 0.05 Hours Correct?

  • JD88
  • · Replies 5 ·
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5

Current controlled VCA and differential amplifier question

  • bitrex
  • · Replies 7 ·
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7

Where can I get a 2.45 GHz Oscillator

  • hashmos
  • · Replies 6 ·
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6

Selection of infrared components and calculation

  • StealthRay
  • · Replies 3 ·
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3

Thermal Resistance at a single point

  • hamzaaaa
  • · Replies 19 ·
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19

How does current choose which path in a circuit with multiple branches?

  • Yportne
  • · Replies 6 ·
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6

Is free energy Really Possible?

  • I_am_learning
  • · Replies 8 ·
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8

Problem obtaining I-V characterisation of solar cell

  • feel luck
  • · Replies 8 ·
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8

How to obtain the I-V characterisation curve of a-Si solar cell?

  • feel luck
  • · Replies 1 ·
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1

Figuring 12V 3A DC Power Supply Capacitance

  • daveroderick
  • · Replies 3 ·
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3

Mini pond pump motor reversing direction under load

  • DaveC426913
  • · Replies 35 ·
2
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35

Capacitor causing a negative dip fixed an issue, why?

  • ConeOfIce
  • · Replies 7 ·
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7

Bidirectional pure sine wave inverter

  • thierryl
  • · Replies 2 ·
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2

Can a generator safely handle full load amps at different power factors?

  • Josh111
  • · Replies 4 ·
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4

EE still good choice for new Engineering major?

  • rgp28
  • · Replies 7 ·
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7

Build In-Phase Sine Wave Generator 1KHz-12KHz Voltage Controlled

  • osta07
  • · Replies 7 ·
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7
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8

Human touch sensor design using IR or body electrical properties

  • haren
  • · Replies 5 ·
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5
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2

I'm working on a design for an electric bike

  • happy_hipster
  • · Replies 7 ·
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7
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13

Can anyone tell me what triax cable is good for.

  • 0xDEADBEEF
  • · Replies 6 ·
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6

Set voltages and amperage for devices

  • user111_23
  • · Replies 2 ·
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2

What are DSP filters and filter types?

  • blackout77
  • · Replies 5 ·
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5

Advice on Studying EECS post-PhD

  • changeseeker
  • · Replies 9 ·
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9

FFT and Nyquist frequency - higher frequencyresolution with lesser samples

  • sodemus
  • · Replies 13 ·
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13

Amplification Testing for Headphone Amplifier Modifications

  • renegg
  • · Replies 3 ·
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3

Connecting a 240v Water Heater to a Timer/Switch

  • osiris12
  • · Replies 30 ·
2
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30

Buying a second microcontroller after Basic Stamp II

  • JCoder
  • · Replies 19 ·
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19

Gain-Bandwidth product question

  • bitrex
  • · Replies 1 ·
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1

Is There a Ratio Between Short Term and Continuous Current for Power Cables?

  • rontruong
  • · Replies 14 ·
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14

What is the best power supply for a peltier-based water cooling unit?

  • DoomDuck
  • · Replies 12 ·
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12

Calculating Inductance Gradient for EM Launcher

  • axi0m
  • · Replies 5 ·
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5

Logic optimization software that maps to custom gate sets

  • TRan
  • · Replies 6 ·
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6

How do current and voltage behave when adding a stub to a transmission line?

  • Benindelft
  • · Replies 9 ·
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9

No load output voltage of a bridge rectifier

  • sridhar10chitta
  • · Replies 13 ·
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13

Pulse Width of a Magnetic Field

  • Nash78
  • · Replies 10 ·
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10

What soft compressible materials safely work with wiring

  • beachbumz123
  • · Replies 3 ·
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3

Trouble Comprehending Rotating Magnetic Fields

  • HydroGuy
  • · Replies 13 ·
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13

House electrical lines AC voltage are forming sinusoidal waveform

  • muet
  • · Replies 4 ·
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4
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8

Using SPI mode to interface msp430 with RF transciever and SD card

  • mz8e08
  • · Replies 1 ·
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1

What exactly is electrical energy?

  • cak942
  • · Replies 4 ·
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4

Optocoupler not behaving as expected.

  • williamshipman
  • · Replies 22 ·
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22

Will a Failed Breaker Cause a Generator to Lose Residual Magnetism?

  • Josh111
  • · Replies 4 ·
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4

DC-DC Buck-Boost converter using 555 Timer?

  • Jdo300
  • · Replies 4 ·
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4

Op Amp built with discret components and having GBP over 30 MHz.

  • Ravaner
  • · Replies 4 ·
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4

Why is AC current used instead of DC for a 100W bulb?

  • neduet
  • · Replies 9 ·
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9