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

Description of a telemetry transmitter

  • senmeis
  • · Replies 6 ·
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6

Circuit design question -- 100% transistor functionality needed?

  • ZeroFunGame
  • · Replies 16 ·
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16

Voltage between two points on an empty wire and also across a resistor

  • funmi
  • · Replies 12 ·
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12

How to build a radio relay station?

  • David lopez
  • · Replies 19 ·
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19

How Does Amplitude Modulation Work in Radio Transmission?

  • revv
  • · Replies 5 ·
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5

Power spectrum of Poisson noise with λ=2

  • arcTomato
  • · Replies 7 ·
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7

What is the Relative Permeability of Iron in a Solenoid?

  • Mason98
  • · Replies 6 ·
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6

Infrared Lamp vs Red Heat Lamp: What's the Difference?

  • carter7gindenv
  • · Replies 4 ·
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4

Why Does My FFT Integration Method Produce Nonzero Imaginary Parts?

  • SchroedingersLion
  • · Replies 8 ·
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8

Combination of discrete/continuous signals

  • MathematicalPhysicist
  • · Replies 2 ·
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2

Best way to match impedance between an amplifier and transducers

  • rwooduk
  • · Replies 23 ·
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23

Battery Charge and Discharge Time Calculations

  • shahabkhan
  • · Replies 14 ·
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14

Hacked pulsed laser driver using Arduino

  • neanderthalphysics
  • · Replies 32 ·
2
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32

Electrical current in semiconductors

  • ZeroFunGame
  • · Replies 9 ·
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9

How do electronics repair technicians diagnose PCB faults systematically?

  • stef3679
  • · Replies 14 ·
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14

Trouble with K-Map Minimizing Function: Who is Correct?

  • momentum
  • · Replies 11 ·
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11

Does thermal cycling acceleration factor account for temperature ramp rate?

  • ZeroFunGame
  • · Replies 8 ·
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8

Tube amplification vs solid state

  • Charlie Cheap
  • · Replies 17 ·
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17

Maintenance charging of lead-acid battery bank (8 @ 6v)

  • Elquery
  • · Replies 3 ·
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3

My amplifier -- why did this capacitor blow in my guitar amp?

  • wolram
  • · Replies 25 ·
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25

I tried building an induction coil

  • David lopez
  • · Replies 34 ·
2
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34

How to derive a log-antilog opamp square law transfer function?

  • fonz
  • · Replies 11 ·
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11

AS-Interface control cabinet module

  • Ivan001
  • · Replies 3 ·
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3

Series capacitors for high frequency AC from 1 MHz to 500 MHz

  • artis
  • · Replies 4 ·
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4

High voltage coil discharge polarity for vehicle spark plugs

  • jerromyjon
  • · Replies 7 ·
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7

Could a modern CPU be built with Si JFETs instead of CMOS?

  • ZeroFunGame
  • · Replies 23 ·
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23

Is Propagation delay from 1 to 0 the same as that from 0 to 1?

  • christang_1023
  • · Replies 6 ·
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6
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8

3 phase alternator is generating a voltage, but no current

  • Screate
  • · Replies 20 ·
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20

Incandescent light lamp flickering is due to what?

  • csk
  • · Replies 16 ·
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16

Why Does Doubling Speakers Double Sound Pressure with Less Power?

  • PSuran
  • · Replies 35 ·
2
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35

Why does voltage = energy/charge?

  • babaliaris
  • · Replies 6 ·
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6

Calculating Convolution Sum for Digital Signal Processing Class

  • wirefree
  • · Replies 4 ·
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4

OpenEP4CE6-C development board compatibility with Quartus II

  • WaiYan
  • · Replies 1 ·
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1

Ground clearances for transmission lines

  • lagrangman
  • · Replies 10 ·
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10

Best place to find bulk old mixed up electronics components

  • jeff davis
  • · Replies 2 ·
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2
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2

How does the base current flow in a transistor oscillator circuit?

  • jaus tail
  • · Replies 5 ·
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5

How can I evenly heat a series of metal plates to a controlled temp?

  • omgcornflakes
  • · Replies 4 ·
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4

How does the tapped capacitor network increase the impedance?

  • brainbaby
  • · Replies 23 ·
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23

(resolved) Seebeck effect: why can't electron+hole combine at cold end?

  • jaus tail
  • · Replies 1 ·
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1

How does a PLL reach steady state when input and feedback frequencies match?

  • jaus tail
  • · Replies 26 ·
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26

Why does Miller code start with 0 at high in the first signal?

  • Peter_Newman
  • · Replies 8 ·
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8

Calculating the capacitance of a capacitor

  • akaliuseheal
  • · Replies 15 ·
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15

Does an inductor produce more current than what's supplied to it?

  • fight_club_alum
  • · Replies 7 ·
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7

Are capacitors the superior alternative to lithium ion batteries?

  • NikolaiSimonov
  • · Replies 10 ·
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10

Is the Scrambler Function in JESD204B Part of the Data Link Layer?

  • senmeis
  • · Replies 5 ·
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5
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28

BJT Transistor Collector Current

  • FAS1998
  • · Replies 9 ·
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9

California Fires and Electrical Reliability Around The World

  • anorlunda
  • · Replies 53 ·
2
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53

Switching speed of ICs vs gate length

  • ZeroFunGame
  • · Replies 3 ·
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3

How do you make a digital counter circuit which counts to 10 minutes?

  • fahadnajed
  • · Replies 17 ·
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17

Choosing a soldering iron for 15A AC wire work

  • Wrichik Basu
  • · Replies 4 ·
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4

Continuously positive static charged vessel?

  • one-fish
  • · Replies 8 ·
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8

Why are perforated PCBs preferred to striped PCBs?

  • Wrichik Basu
  • · Replies 4 ·
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4

What does it mean to have an complex transmission angle?

  • thatsmessedup
  • · Replies 2 ·
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2

Why are waveguides and horns so expensive compared to regular metal pipes?

  • BlackPowder
  • · Replies 4 ·
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4

Why won't solder stick to wires with my 25W soldering iron?

  • Wrichik Basu
  • · Replies 38 ·
2
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38

Charging and discharging capacitor with separate switches

  • George Young
  • · Replies 3 ·
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3

USB powerbank with pure 5V output

  • new6ton
  • · Replies 60 ·
3
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60

Making a custom DIY light switch safe for home use

  • ktoz
  • · Replies 5 ·
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5

What is the Type of Laser Used in My Wine Raman Spectrometer?

  • new6ton
  • · Replies 7 ·
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7

What is causing the strange ground current loop in this motor circuit?

  • kenneth edmiston
  • · Replies 6 ·
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6

400 volt 3 phase 16 amp machine -- can it be used in the US?

  • John Zealand
  • · Replies 21 ·
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21

Can I Build a Robot with Just a Blue Thing and a USB Cord?

  • George Young
  • · Replies 2 ·
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2

Measuring a DC motor's inductance

  • bbq_build
  • · Replies 3 ·
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3

How can the HCPL3120 driver improve current control in an H bridge system?

  • maimahmoud25
  • · Replies 2 ·
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2
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6

Looking for audiophile amp builders in Silicon Valley

  • yungman
  • · Replies 3 ·
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3

Measurement Devices: Tachometers

  • MachX
  • · Replies 2 ·
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2

Can Ohm's Law Be Defied with Independent Power Sources?

  • Boltzman Oscillation
  • · Replies 11 ·
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11

Design of a CW multiplier circuit

  • Khalid
  • · Replies 22 ·
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22

Royer Oscillator Working Principle

  • jaus tail
  • · Replies 16 ·
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16

Using transistors to switch between multiple output wires from a microcontroller

  • George Young
  • · Replies 9 ·
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9

Power balance and harmonics in transmission vs distribution systems

  • cnh1995
  • · Replies 9 ·
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9

Unbalanced 3 phase power - what happens without a neutral wire?

  • Pawlal
  • · Replies 4 ·
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4

When the world doesn't understand energy and power

  • fpjeepy
  • · Replies 9 ·
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9

How are counts per frame calculated in CCD for spectrometry?

  • new6ton
  • · Replies 68 ·
3
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68

Advice for a choke for blocking parasitic switching spikes

  • artis
  • · Replies 58 ·
2
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58

What happens *just* under the Nyquist limit

  • snatchingthepi
  • · Replies 9 ·
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9

FM Ratio Detector is not working

  • michael1978
  • · Replies 16 ·
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16

Induction heating internal splines

  • Campeze
  • · Replies 3 ·
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3

How to make the power factor of induction motors be a leading power factor?

  • Mathew Joseph
  • · Replies 3 ·
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3

IR2304 MOSFET driver pin configuration for three-phase inverter

  • tim9000
  • · Replies 85 ·
3
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85

1.5 in-line/pigtail day/night sensor?

  • CCinPA
  • · Replies 32 ·
2
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32

Diode passing voltage in both directions.

  • David lopez
  • · Replies 20 ·
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20

What kind of an electric motor with a reducer is needed for this?

  • ksama
  • · Replies 2 ·
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2
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4

Solving Power Delivery Issues in a 5V Series Circuit with a 1.5V Rated Relay

  • shushi_boi
  • · Replies 12 ·
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12

Equivalent MOSFET for AUIRLR2908

  • nlis12
  • · Replies 6 ·
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6

Extremely high current effects in semiconductors

  • ChrisP
  • · Replies 11 ·
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11

How can I prevent increasing capacitance on my homemade sensor?

  • akaliuseheal
  • · Replies 6 ·
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6

Determining the voltage polarity of the independent current source

  • fight_club_alum
  • · Replies 17 ·
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17

How does this have 24 transistors?

  • jaus tail
  • · Replies 6 ·
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6

Is it possible to connect a Hall Effect Flow Sensor output to a PLC?

  • kunalvanjare
  • · Replies 13 ·
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13

Schottky diode with the correct voltage and current rating

  • Sid55
  • · Replies 9 ·
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9

Is the Apple iPad Considered an Electrical Equipment?

  • new6ton
  • · Replies 10 ·
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10

How to Calculate Ferrite Transformer

  • NIKOLA TESLA Oficial
  • · Replies 7 ·
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7

Find the schematic diagram for a power amplifier (for repair)

  • hagopbul
  • · Replies 5 ·
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5

Increasing the 50 Ohm bandwidth of an impedance-matched system

  • decaf14
  • · Replies 19 ·
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19