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

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1

Battery Help Needed: Power Circuitry Design Explained

  • roberts26
  • · Replies 4 ·
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4

How can I design a 30-second lag time timer using a 555 timer?

  • big_tobacco
  • · Replies 4 ·
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4

Neutral Wires: Potential and Safety

  • v_gurucharan
  • · Replies 1 ·
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Adding/Subtracting DC Offset to Sine Wave: Circuit Needed

  • kiamzattu
  • · Replies 7 ·
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7

Magnetic Induction Experiment Suggestion

  • sammy-e
  • · Replies 4 ·
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4

Why Do Some Voltmeters Not Show 10V at Full Scale on a Potentiometer?

  • a3sportback54
  • · Replies 1 ·
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1

Is there a good resource on the Seebeck effect

  • 0xDEADBEEF
  • · Replies 1 ·
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ELECTRONIC Circuits editor and Simulator

  • lkari
  • · Replies 3 ·
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3
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JK FF: Why Duty Cycle is Always 50%?

  • ckaiser813
  • · Replies 2 ·
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How Does Load Impact Electric Motor Efficiency and Speed?

  • tyquestions
  • · Replies 4 ·
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4

Understanding Voltage, Amperage, and Wattage for DC Motors at Low RPMs

  • tyquestions
  • · Replies 3 ·
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3

Designing a Circuit with Op-Amp on PCB: Reasons & Refs

  • swty todd
  • · Replies 3 ·
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3
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Understanding the Q-Factor of Inductors in Resonant Systems

  • Dominique
  • · Replies 3 ·
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I need electrical comparison help, anybody?

  • Suzanne
  • · Replies 15 ·
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15

Off-Grid Energy Options & Subsidies

  • Mgt3
  • · Replies 4 ·
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4

Can Lead Acid Batteries Be Used in Parallel for Optimal Performance?

  • cshieldsx
  • · Replies 9 ·
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9

Can You Use 220V MR16 Bulbs Without a Power Supply?

  • Logger
  • · Replies 2 ·
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2

Charge Amplification - Tips & Techniques for Limited Access

  • zepto-
  • · Replies 18 ·
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18

Help what will i study in electrical engineering

  • ahmedhassan72
  • · Replies 2 ·
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2

How electricity could be both AC and DC?

  • swty todd
  • · Replies 9 ·
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9

How Does a Step Up Transformer Illustrate the Conservation of Energy?

  • XPTPCREWX
  • · Replies 2 ·
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2

Bring Speedo Up in Ford Mondeo with Frequency Doubler

  • Ferret
  • · Replies 18 ·
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18

Odd-Numbered Binary Inputs & XOR Gates

  • sos617@bham.a
  • · Replies 2 ·
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2
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Intrinsic resistance of a transistor

  • adiman1984
  • · Replies 2 ·
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Where to find fixed power supplies of: -9V, +9V, and/or -5V

  • atlbraves49
  • · Replies 33 ·
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Convert DC to AC: Power Electric Chair on AC Only

  • Missouri Bob
  • · Replies 10 ·
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10

Resistance , current and temperature

  • adool_617
  • · Replies 2 ·
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2

How Can I Generate Power in a Spinning Juggling Club?

  • eatingblaa
  • · Replies 2 ·
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2

Microcontroller to Laptop through RS232-USB Converter

  • Rickson
  • · Replies 6 ·
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6

Finding the Right VCR/VDR or VCO to Make a Variable Length Pulse

  • madmike159
  • · Replies 3 ·
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3

Closing a Switch with Microcontroller: Simple Answer

  • dmehling
  • · Replies 5 ·
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5

Tube Furnace Fabrication: Any Tips or Recommendations?

  • KYPOWERLIFTER
  • · Replies 1 ·
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How does a electric potatoes peeler work?

  • mrdavide
  • · Replies 2 ·
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Calculating Power Output with PWM and 1ohm Load

  • GlynnHeeswijk
  • · Replies 5 ·
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5

Need help to gradually ramp up/down intensity of LED at power-on/power-off

  • malaybiswas
  • · Replies 2 ·
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Making a non pressurized water heater

  • GiTS
  • · Replies 10 ·
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10

Sound Engineering Solutions for Robert's Experiment

  • BirdBrained
  • · Replies 2 ·
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2

Gates - Basic question from new student

  • Macwoni
  • · Replies 3 ·
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3

How Do You Calculate Electrical Field Strength in Kapton Insulated Cables?

  • nastyboy
  • · Replies 2 ·
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2

Longitudinal waves in circuits?

  • juan avellaneda
  • · Replies 2 ·
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2

Comparing Op-Amp 741 and Latest Op-Amps

  • swty todd
  • · Replies 2 ·
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Hardware to mount pcb/prototype board to metal box?

  • atlbraves49
  • · Replies 5 ·
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5

Open Source Humanitarian Demining Project

  • Humanise
  • · Replies 13 ·
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13

Capacitor question( what do prioritize to maximize current in a RC circuit)

  • polosportply
  • · Replies 1 ·
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1

Cramer's Rule in Complex Frequency Domain.

  • Peon666
  • · Replies 1 ·
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Convert Digital Output from DAQ to Analog output?

  • atlbraves49
  • · Replies 4 ·
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4

Control DC Motor Speed using Astable - Mike's Project

  • madmike159
  • · Replies 4 ·
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4

Add DC & AC Voltages: Learn How to Do It!

  • kiamzattu
  • · Replies 11 ·
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11

Get 5V from 9V Battery for TTL 7400 IC

  • muh_j18
  • · Replies 1 ·
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How to calculate the BusBar size?

  • megatronic
  • · Replies 2 ·
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Electric Arc Current Estimate: 80kV, 1" Gap

  • mgibson
  • · Replies 5 ·
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Math Courses for Electrical Engineering Degree

  • Macwoni
  • · Replies 2 ·
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2

Determining supply current/voltage to LED

  • hl_world
  • · Replies 19 ·
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19

Capacitor Selection - Suggestions for 100kHz Low ESR Decoupling

  • deen25
  • · Replies 4 ·
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PSK Modulation for Serial Communication on Power Lines | How to Find a PSK Chip

  • abs_heroever
  • · Replies 7 ·
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What's the purpose of R20 in this schematic

  • j777
  • · Replies 6 ·
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6
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Understanding 3 Phase IEC Contactors/Starters

  • XPTPCREWX
  • · Replies 4 ·
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4

Designing a Timed Vibration Device for Children with Autism

  • midwest_medic
  • · Replies 6 ·
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Can Excel be Used for Design Optimization? Tips and Resources for Success

  • piyudhaker
  • · Replies 8 ·
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8

How can I simulate dielectric breakdown?

  • seang
  • · Replies 10 ·
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10

Can general prototyping boards handle up to 4-5A in current?

  • atlbraves49
  • · Replies 1 ·
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What if? (concerning electrical induction)

  • confusedone
  • · Replies 25 ·
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25

Solve Mystery of Strange Mobile Phone Issue

  • wolram
  • · Replies 2 ·
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Carmel IN Wire Harness Builder Looking for Supplier

  • I forgot ohms
  • · Replies 4 ·
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4

Wireless transmission of electricity

  • Ksree
  • · Replies 21 ·
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21

Remote Volume Control for 2-channel Pyle Pro Amplifier

  • MaNiAc2k
  • · Replies 3 ·
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3

Which capacitor is right for me?

  • DougD720
  • · Replies 8 ·
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Optimizing PCB Design: Choosing Between SD and MicroSD Connectors

  • j777
  • · Replies 5 ·
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Wireless information sending and baud rate

  • bassplayer142
  • · Replies 3 ·
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Power in dc circuits supplying or consuming?

  • spazzy32
  • · Replies 1 ·
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Ideas for My Project: Fixing a 60-Year-Old World Time Clock

  • Sawyer888
  • · Replies 11 ·
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11

Open curcuit voltage of photovoltaic devices

  • chenhon5
  • · Replies 11 ·
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11

Analog Circuit Design for Fuel Tank Sending Units: Help Needed

  • johnerbes
  • · Replies 12 ·
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12

Full wave rectifier for piezoelectric stack

  • lucy_b14
  • · Replies 6 ·
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6

How Do You Analyze Circuits Containing Diodes?

  • dancavallaro
  • · Replies 7 ·
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7

How Can I Measure Water Levels in a Tank for PLC Integration?

  • User Name1
  • · Replies 7 ·
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7

LED and Resistor Circuit WiringWhich resistors should i use?

  • lukeledinstal
  • · Replies 15 ·
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15

Normalized Current in Transmission Lines Explained

  • swty todd
  • · Replies 1 ·
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1

How to Set Undervoltage Lockout for TPS63001?

  • samski
  • · Replies 2 ·
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2

Transmission Lines: Boundary Conditions Meaning

  • swty todd
  • · Replies 1 ·
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1

Calculating Combined Resistance in Parallel Circuits

  • hl_world
  • · Replies 7 ·
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7
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The production of LEDs using PLD

  • RayRoc
  • · Replies 1 ·
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How to Convert NMEA Data to Google Earth Mapping?

  • JamesH
  • · Replies 3 ·
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3

Are there steps to find the Fourier series for transformed graphs?

  • rforrevenge
  • · Replies 7 ·
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7

Dividing energy from power source

  • hl_world
  • · Replies 5 ·
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5

How Does Capacitor Power Dissipation Impact AC Circuit Behavior?

  • rebeka
  • · Replies 1 ·
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1
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Solving Transmission Line Outages: 400 Miles of 345 kV

  • adiy
  • · Replies 6 ·
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NPN transistor with lowest Vbe?

  • fizz_it
  • · Replies 6 ·
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Magnetic field and voltage question

  • jearls74
  • · Replies 8 ·
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8

Need a negative voltage from a 0-60V power supply

  • atlbraves49
  • · Replies 3 ·
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3

Building a Successful Tesla Coil: Tips and Tricks for Coil Builders

  • EvilTesla
  • · Replies 6 ·
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Pushing LEDs Beyond Ratings: Can My 25ma LED Survive?

  • Topher925
  • · Replies 11 ·
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How to experimentally calculate power cable ampacity

  • EE_HV
  • · Replies 12 ·
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12