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

Building/Repairing an Electric Motor

  • Mikedec555
  • · Replies 2 ·
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2

Why does voltage double at the open end of a coaxial cable?

  • Cactor
  • · Replies 2 ·
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2

HFSS: radiation pattern of antenna in teflon instead of air

  • tkk_hut
  • · Replies 1 ·
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1

Making a tiny transformer with 1:30 step-up ratio at up to 2 MHz

  • m718
  • · Replies 11 ·
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11

Why are substrate and well taps on heavily doped regions in MOS transistors?

  • lostinxlation
  • · Replies 1 ·
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1

If gate (NMOS) is connected to Ground how is current able to flow

  • PalmTreeSD
  • · Replies 6 ·
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6

Questions for a electrical engineer sub. power

  • Pipelining101
  • · Replies 1 ·
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1

Projector causes buzzing in guitar amp when powered from same capacitor

  • colintonks
  • · Replies 4 ·
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4

Where Can I Find a Proto Board 'Speedwire' for Prototyping?

  • Dan King
  • · Replies 13 ·
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13

Which is more dangerous, 230V AC or 230V DC?

  • namannitant
  • · Replies 6 ·
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6

Project GSM Car security system

  • Abubakar B
  • · Replies 2 ·
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2
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10

The textbook(c1996) is ok to read or is outdated

  • LSE1234
  • · Replies 1 ·
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1

Can You Power a Room with Solar Panels and Car Batteries?

  • jdsniderjr
  • · Replies 2 ·
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2

Is 5000 Volts at 1mA Safe? What's the Maximum mA?

  • m718
  • · Replies 6 ·
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6

Is It Safe to Turn On My Computer Before UPS Stabilizes?

  • n.karthick
  • · Replies 3 ·
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3

V_n equaion question on PN junction

  • nhrock3
  • · Replies 5 ·
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5
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5

Thermistor Temperature- Ohms Law?

  • ElBell
  • · Replies 8 ·
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8

Static noise in hi-fi speaker with selectable DC adapter

  • esphix
  • · Replies 7 ·
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7
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1

Why are magnetic hard drive bits written as wave structures?

  • Llama77
  • · Replies 3 ·
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3

Measuring RF Voltage at Antenna Ground Contact

  • spid3rx
  • · Replies 1 ·
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1

The Alkaline Battery inside My Pocket was Red Hot

  • McHeathen
  • · Replies 8 ·
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8

Topic about autoroute in PCB designing

  • adream307
  • · Replies 2 ·
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2

How do I choose the collector resistor for a single stage CE amplifier?

  • Danish_Khatri
  • · Replies 10 ·
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10

Reversing a 115V AC gearmotor with DPDT and solving overheating

  • abhipatel
  • · Replies 1 ·
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1

Difference between voltage gain Av and overall gain Gv in amplifiers

  • Danish_Khatri
  • · Replies 5 ·
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5

Effect of ntype/ptype dose increase on the pn diode breakdown.

  • iamlovelyboy
  • · Replies 3 ·
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3

Where Can I Find an Affordable Oscilloscope?

  • MRClark32493
  • · Replies 8 ·
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8

Choosing fiber optic cable for industrial sensors and switches

  • sugandh
  • · Replies 5 ·
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5

Usage of optical fibre in electrical wiring.

  • sugandh
  • · Replies 6 ·
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6
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8

Why does a diode have a specific sign?

  • nhrock3
  • · Replies 6 ·
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6

Problem with Compassconnection to microcontroller

  • sancho88
  • · Replies 1 ·
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1

NFPA 79 Compliance: An OEM's Perspective

  • mlowe1971
  • · Replies 1 ·
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1

Difference between ripple and harmonics

  • namannitant
  • · Replies 2 ·
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2
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6

How to supply Serial Clock Input into an audio-ADC IC?

  • lousyanson
  • · Replies 2 ·
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2

Can a Single Crystal Cover 700MHz to 3.2GHz for Frequency Variation?

  • MRClark32493
  • · Replies 2 ·
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2

Grounding Considerations for Low-Voltage DC Solar Systems

  • nunojpg
  • · Replies 1 ·
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1

Transient response of a control system.

  • koolraj09
  • · Replies 3 ·
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3

Difution drift currect question

  • nhrock3
  • · Replies 4 ·
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4

Do Fleming valves fail at high frequencies?

  • awygle
  • · Replies 4 ·
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4

Why Ferrite Bead in Supply line

  • Dinu Paulson
  • · Replies 1 ·
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1
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8

Illuminate Your Video Inspections with a 30/60Hz Strobe Lamp

  • mgb_phys
  • · Replies 6 ·
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6

Why Do Bipolar Transistors Use N+PN Configuration for High Current Gain?

  • nhrock3
  • · Replies 1 ·
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1
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9

What is the Difference Between Electronic and Electric?

  • AlbanianBlood
  • · Replies 4 ·
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4

Measuring central vacuum low voltage circuit for relay trigger

  • tadtv
  • · Replies 5 ·
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5

Project Regarding The Use of Temperature Controller

  • mrwheezy
  • · Replies 3 ·
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3

TEC pulsed load causing voltage sags

  • OBCblackhawk
  • · Replies 15 ·
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15

I need chopper farmole send all detail and diagram stepdown

  • umardarz
  • · Replies 2 ·
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2

Standing Wave pattern on an open circuited transmission line with length λ/4

  • ask_LXXXVI
  • · Replies 3 ·
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3

Capacitor Banks Variation With Voltage and Frecuency

  • biguelo
  • · Replies 2 ·
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2

Voltage Fluctuations: Protecting Electrical Appliances in Stormy Weather

  • namannitant
  • · Replies 2 ·
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2

Running a 120V AC motor at 400V and 6000V

  • jakksincorpse
  • · Replies 6 ·
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6

Power Requirements for High Power DC Motor - Ramone

  • ramonegumpert
  • · Replies 3 ·
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3

Antenna Polarization: Fixed E-field Orientation?

  • ws5155a
  • · Replies 3 ·
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3

Magnetic field induced by current in a conductor question

  • jearls74
  • · Replies 2 ·
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2

Is RMS Frequency Variant?

  • ormusgold
  • · Replies 10 ·
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10

Can We Harvest Lightning for Energy?

  • taylaron
  • · Replies 40 ·
2
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40

How do BJT circuits work?

  • Fahad Mehmood
  • · Replies 8 ·
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8

Confused about battery's specific power and energy

  • pchoopanya
  • · Replies 3 ·
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3

Equivalent Resistance between A and B

  • SpartanG345
  • · Replies 5 ·
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5

The Real Purpose of Laplace/Fourier Transform?

  • Peon666
  • · Replies 6 ·
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6

Connecting avref and avcc in atmega8

  • manshuk89
  • · Replies 5 ·
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5

Is a Transistor Considered a Fundamental Circuit Element?

  • SpartanG345
  • · Replies 4 ·
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4

Step Up 10mV - 200mV to 5V @ 20A

  • krsbuilt
  • · Replies 6 ·
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6

Is Lightning AC or DC?

  • otomanb
  • · Replies 6 ·
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6

Why Does Resistance Measurement Drop Over Time?

  • spid3rx
  • · Replies 14 ·
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14

Amplitude based energy to frequency based energy converter

  • kishushah
  • · Replies 27 ·
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27

Magnetic Field Under a Thunder Storm

  • taylaron
  • · Replies 2 ·
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2

Can 12V 2500 mah NiMH batteries release around 150A?

  • jonnyk
  • · Replies 49 ·
2
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49

How can I build a sound controlled LED circuit without a programmed chip?

  • ulverbeast
  • · Replies 6 ·
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6

Getting started in electronics for non-EEs? Basics?

  • MissSilvy
  • · Replies 2 ·
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2

What is the meaning of this circuit symbol?

  • wil3
  • · Replies 2 ·
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2

AC Frequency Converter Circuit Diagram

  • Idoubt
  • · Replies 19 ·
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19

Boosting pwm peak to peak voltage

  • andesam
  • · Replies 8 ·
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8

What's the best way to make a warm metal plate?

  • Poxnar
  • · Replies 7 ·
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7

Is a Home DSL Network Broadband?

  • LSE1234
  • · Replies 8 ·
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8

Dc to AC inverter inductor calculation

  • dincer78
  • · Replies 8 ·
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8

Transformer Efficiency Calculations

  • MathsDude69
  • · Replies 5 ·
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5

Switching MOSFET from MCU with VDS of +12v

  • NVergunst
  • · Replies 6 ·
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6

Amplifying WiFi Signal with an Op Amp: Is It Possible?

  • sdusheyko
  • · Replies 2 ·
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2

Estimate Power of CMOS Inverter Circuit - 0.12um Tech

  • bilalarif
  • · Replies 2 ·
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2

What kind of component should I insert here to convert 0-5V to 0-100V

  • bill.connelly
  • · Replies 9 ·
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9

Tiny speaker with custom sound?

  • aldag
  • · Replies 1 ·
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1

Generating and storing electricity for lightning in a lab

  • taylaron
  • · Replies 5 ·
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5

Circuit Diagram Optical Mouse: Find or Create

  • Quincy
  • · Replies 3 ·
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3

Driving 5V DC motor from MCU output

  • alexwryt
  • · Replies 2 ·
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2

Can power factor be greater than 1?

  • kislay2005
  • · Replies 5 ·
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5

Programmable light switch hardware.

  • MonkOFox
  • · Replies 4 ·
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4

Building a DC-DC converter to step up 0.5V to 1-2V

  • mrjeffy321
  • · Replies 22 ·
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22

Proving Zin Equation for Ideal Gyrator Circuit

  • Law91
  • · Replies 18 ·
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18

Resistor Wattage: Find Out If You Need Bigger Resistor

  • david90
  • · Replies 5 ·
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5

How useful would knowing German or Japanese be for an EE?

  • jordainloves
  • · Replies 9 ·
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9

Books and resources for learning electrical engineering basics

  • jameslat
  • · Replies 1 ·
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1

Installing a PA System in a Training Car

  • marinpa
  • · Replies 6 ·
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6