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

Microphone that can detect wheezing sound from the chest

  • choyelise
  • · Replies 2 ·
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2

How to charge a 3.7V 110mA lithium polymer battery

  • choyelise
  • · Replies 4 ·
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4

How to pick the right insulating type

  • chinrose
  • · Replies 11 ·
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11

Magnetic field intensity problem

  • Saeed.z
  • · Replies 2 ·
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2

Hands-on electrical engineering fields beyond software debugging

  • puneeth9b
  • · Replies 10 ·
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10

Charge an emergency fan on AC or DC setting?

  • t3rom
  • · Replies 8 ·
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8

Calculate Surface Charge Decay - Chemical Engineer

  • Disserate
  • · Replies 11 ·
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11

Effect of Reactor on Person in 22 kVA Magnetic Field

  • Sindhutammu
  • · Replies 5 ·
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5

Power requirements for solar-electric sheepwagon?

  • jmlidea
  • · Replies 1 ·
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1

Is conventional commutator DC motor still in use?

  • I_am_learning
  • · Replies 12 ·
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12

Getting back in after a long time

  • neramdaman
  • · Replies 10 ·
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10

Trying to convert an old Dell ATX power supply into a lab power supply

  • res3210
  • · Replies 12 ·
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12

120-240VAC Digital Logic Power Relay Timer

  • Aomeszaga
  • · Replies 9 ·
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9

Hydroelectric powerstation with Asynchronous or synchronous generator

  • vampslayer
  • · Replies 5 ·
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5

Electromagnetic Waves: Frequency Bands

  • Newtons Apple
  • · Replies 5 ·
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5

Building a pulse modulation RF transmitter and legal restrictions

  • hardyboy16jm
  • · Replies 8 ·
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8

What factors should be considered when choosing decoupling capacitors?

  • d.arbitman
  • · Replies 6 ·
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6

What are some ideas for a power-related engineering project?

  • u.a.e.boy
  • · Replies 2 ·
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2

Is Grounding Yourself with Outlet Safe?

  • iScience
  • · Replies 7 ·
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7

Multi LED circuit controlled by photodiode

  • lostminty
  • · Replies 6 ·
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6

Can you boost RF signal power with a generic op amp?

  • amanno
  • · Replies 12 ·
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12

Why Zener Diodes Don't Have Current Leakage

  • ahjie
  • · Replies 4 ·
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4

High resistance components in low frequency cutoff butterworth

  • mehrlin
  • · Replies 8 ·
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8

Making a quater wave connection and 2 GHz source

  • reasonableman
  • · Replies 11 ·
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11
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4

Using Center Tabbed Transformers for Audio to Grounding on a 9v Circuit

  • Tesladude
  • · Replies 14 ·
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14

Issue with N-channel MOSFET Transistor

  • Leolicos
  • · Replies 10 ·
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10

Brushless DC Motor torque calculations?

  • TommiePrinsloo
  • · Replies 4 ·
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4

How do basic electronic components work together in gadgets?

  • infinite.curve
  • · Replies 4 ·
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4

Trying to desolder some electrical components from a board

  • res3210
  • · Replies 13 ·
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13

Smart grid prototype for residential energy monitoring

  • DeeJayCruiser
  • · Replies 11 ·
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11

Battery run time for different terrains .

  • veertoshi
  • · Replies 1 ·
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1

Number of Suspension Insulators for a Given Voltage Level

  • jegues
  • · Replies 3 ·
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3
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8

Discharging capacitor without resistor

  • psilocybin
  • · Replies 12 ·
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12

Using current mirrors to drive multiple LEDs independently

  • Jet Black
  • · Replies 2 ·
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2

Small Signal Model for transistors

  • nebbione
  • · Replies 5 ·
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5

Car parasitic draw and chassis ground voltage disparity

  • mearvk
  • · Replies 2 ·
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2

Searching for Josephson Junctions

  • forex10
  • · Replies 3 ·
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3

Restore sgn(f(x)), f(x)=abs(sinc(x)) ?

  • blighme
  • · Replies 2 ·
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2

Sensing circuit for AC vs DC voltage

  • pjshah72
  • · Replies 17 ·
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17

Which standard specifies this transformer symbol variant

  • pobat
  • · Replies 1 ·
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1
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1

E-textiles EMC/FCC and durability issues

  • kb_designer
  • · Replies 1 ·
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1

Understanding Magnet Wire: Differences and Uses

  • eq1
  • · Replies 4 ·
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4

Solar Panels: Improving performance at low sun angles

  • RonaldJJames
  • · Replies 3 ·
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3

Limits on exposure to high power RF

  • DragonPetter
  • · Replies 3 ·
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3

Passive Switch for NPN or MOSFET Ideas?

  • EagleOnePro
  • · Replies 4 ·
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4

Measuring specs on a transistor

  • res3210
  • · Replies 1 ·
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1

Receiver's Noise Input =K*T*BWeq ?

  • Fovakis
  • · Replies 25 ·
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25

How does alternating current transmit energy if it just pulses back and forth?

  • mohammad_adam
  • · Replies 12 ·
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12

TV power board capacitors with black dots on top - are they blown?

  • Q_Goest
  • · Replies 12 ·
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12

Is a inverter the same as a transformer or marx generator?

  • bmxrider2012
  • · Replies 5 ·
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5

AD633 analog multiplier IC and AM generation.

  • dexterdev
  • · Replies 9 ·
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9

What determines compatibility between motor drives?

  • tomizzo
  • · Replies 1 ·
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1

Questions about batteries and electric motors

  • guyknowslittle
  • · Replies 23 ·
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23

Suggestions for 9V Audio Chip for Portable Radio/Boom Box

  • Tesladude
  • · Replies 2 ·
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2

Worldwide Solar Grid Hypothetical

  • ClarenceCarter
  • · Replies 4 ·
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4

Electronics parts complete assortment

  • andrewkg
  • · Replies 1 ·
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1

Sound amplification decreases when connecting a capacitor

  • sci-phy
  • · Replies 3 ·
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3

LM1875 audio amp breadboard producing distorted sound

  • Tesladude
  • · Replies 25 ·
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25

Why is My 240v Line Voltage Only Measuring 16v Between Line Phases?

  • moopiehead
  • · Replies 7 ·
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7

Medical Grade UPS 3000VA - Meet UL 60601-1 Requirements

  • Jetach
  • · Replies 5 ·
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5

Marx generator can it be used to power something?

  • bmxrider2012
  • · Replies 1 ·
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1

Phase change in lock-in amplifier

  • Mikech
  • · Replies 1 ·
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1

Resonance Frequency of Series LCL circuit

  • Fischer777
  • · Replies 1 ·
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1

How to Calculate the Output Voltage of a Photodiode?

  • phoneketchup
  • · Replies 7 ·
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7

Designing an ASK Demodulator for RFID Tags

  • shaikss
  • · Replies 2 ·
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2

How shall I run electricity 2000 feet away from light pole?

  • Mechanic Mike
  • · Replies 13 ·
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13

What are test hooks used for in an electric tool kit?

  • tsuwal
  • · Replies 1 ·
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1

Can I Use PWM to Control My Electromagnet with a MOSFET and 12V Battery?

  • EagleOnePro
  • · Replies 4 ·
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4

High current battery switching without putting the load through the sw

  • Zardichar
  • · Replies 3 ·
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3

How to test outlets in a room where none work

  • Greg Bernhardt
  • · Replies 24 ·
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24

Voltage comparator in a photo sensing circuit

  • tachyon_man
  • · Replies 2 ·
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2

Erasing a powered EPROM with UV?

  • Artlav
  • · Replies 6 ·
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6

Axe026 serial programming cord not working with USB converter

  • Tesladude
  • · Replies 6 ·
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6

Neural Network based controller

  • date.chinmay
  • · Replies 3 ·
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3

Custom uninterrupted power supply

  • Jetach
  • · Replies 13 ·
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13

Building a wireless phone charger from a solenoid and USB charger

  • coljnr9
  • · Replies 4 ·
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4

Rectifier - Regulator integration

  • shaikss
  • · Replies 1 ·
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1

How Does Hot Wire Flow Sensor Circuitry Work?

  • berdan
  • · Replies 7 ·
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7

Battery Charger Considerations?

  • dpsciarrino
  • · Replies 10 ·
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10

Weird input situation in a PIC circuit

  • Zalajbeg
  • · Replies 2 ·
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2

Nodal Analysis- direction of currents flow

  • user5
  • · Replies 5 ·
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5

How the voltage of very high magnitude is obtained in a tubelight?

  • Faraz Murtaza
  • · Replies 8 ·
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8

Very Small Scale Power Generation in Rural Asia

  • RaGun
  • · Replies 15 ·
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15

What hands on trade would benefit an electrical engineer?

  • DeeJayCruiser
  • · Replies 3 ·
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3

Measure direction of subpicoamp current

  • swooshfactory
  • · Replies 3 ·
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3

How Does High-Frequency Ultrasound Affect Electromagnetic Fields?

  • RedPhase
  • · Replies 4 ·
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4

Mosfet Load switch + weird load

  • likephysics
  • · Replies 7 ·
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7

Useful Representations of Log Audio Frequency Spectrum

  • Deepsatchel
  • · Replies 2 ·
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2

Why vacuum tubes can not be made small

  • planety_vuki
  • · Replies 5 ·
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5

What Factors Affect the Speed of Sound in Water During Hydrophone Experiments?

  • cork-spotters
  • · Replies 5 ·
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5

Connecting Batteries in Parallel - Is It Possible?

  • s_m
  • · Replies 4 ·
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4

Understanding Analog-to-Digital Conversion for Digital Computing and Processing

  • Elecomputer
  • · Replies 9 ·
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9

What kind of components are these?

  • t3rom
  • · Replies 16 ·
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16

Running switching regulators in parallel

  • memoguy
  • · Replies 25 ·
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25

How to measure temperature of a wire without connecting it to a ckt

  • physicsEEprob
  • · Replies 7 ·
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7

Thevenin Equivalents and Opamps

  • Rosaline
  • · Replies 3 ·
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3